DTM Xay Dung Tuyen Duong

MC LCMC LC ...........................................................................................................1 M U..............................................................................................................5 CHNG 1 .......................................................................................................10 M T TM TT D N..............................................................................101.1. TN D N:.......................................................................................................................10 1.2. CH D N:......................................................................................................................10 1.3. V TR A L CA D N...........................................................................................10

...........................................................................................................................101.4 NI DUNG CH YU CA D N................................................................................11

1.4.1 Quy m xy dng v cp hng cng trnh:........................................11 1.4.2. Phng n thi cng...........................................................................17 1.4.3 Phng n cung cp nguyn vt liu xy dng cho cng trnh.........18 1.4.4 Phng n n b ti nh c:...........................................................20 - D n p dng phng n ti nh c ti ch vi cc im ti nh c c UBND tnh ph duyt c th: x Thch Long 16.732m2, H 36.426m2, Thch Kh c 2 v tr: v tr 1 l 13.659m2, v tr 2 l 32.784m2, Thch nh c 3 v tr: v tr 1 l 22.622m2 (ti xm 8), v tr 2 l 12.894m2 (xm 3), v tr 3 l 11.334m2(xm 11).......................................21 1.4.5. Kinh ph thc hin d n: ................................................................21 1.4.6. Tin thc hin d n....................................................................21 CHNG 2........................................................................................................22 IU KIN T NHIN, MI TRNG V KINH T X HI..................222.1. IU KIN T NHIN V MI TRNG...................................................................22

2.1.1 V tr a l:.......................................................................................22 2.1.2 a hnh a mo:..............................................................................22 2.1.3 a cht:.............................................................................................22 2.1.4 iu kin v kh tng, thy vn .....................................................24 2.1.5. Hin trng cc thnh phn mi trng t nhin...............................262.2 IU KIN KINH T, X HI.........................................................................................28

2.2.1. Dn c lao ng.............................................................................28 2.2.2. Tnh hnh x hi................................................................................322.3 TI NGUYN THIN NHIN: .........................................................................................33

2.3.1 Ti nguyn t: .................................................................................33 2.3.2 Ti nguyn nc: ..............................................................................34 2.3.3 Ti nguyn ng thc vt: ................................................................35 CHNG 3........................................................................................................36 NH GI TC NG MI TRNG .......................................................36

Bo co nh gi tc ng mi trng D n u t xy dng tuyn ng ni QL1A - m st Thch Kh, tnh H Tnh

----------------------------------------------------------------------------------------------3.1. NGUN GY TC NG...............................................................................................36

3.1.1. Ngun gy tc ng c lin quan n cht thi................................36 3.1.2. Ngun gy tc ng khng lin quan n cht thi:........................39 3.1.3. D bo nhng ri ro v s c mi trng do d n gy ra:.............413.2. I TNG, QUY M B TC NG ........................................................................41 3.3. NH GI TC NG:..................................................................................................43

3.3.1 Tc ng mi trng trong giai on gii phng mt bng: ............43 3.3.2. Tc ng mi trng trong giai on thi cng xy dng................44 3.3.3 Tc ng mi trng trong giai on s dng cng trnh:...............523.4. NH GI V PHNG PHP S DNG..................................................................57

CHNG 4........................................................................................................58 BIN PHP GIM THIU TC NG TIU CC, PHNG NGA V NG PH S C MI TRNG....................................................................584.1. I VI CC TC NG XU:....................................................................................58

4.1.1. Cc bin php gim thiu trong G gii phng mt bng ca d n .....................................................................................................................58 4.1.2 Cc bin php phng nga gim thiu tc ng trong giai on thi cng d n:..................................................................................................61 4.1.3 Cc bin php gim thiu tc ng tiu cc trong giai on s dng cng trnh:....................................................................................................664.2. I VI S C MI TRNG:....................................................................................67

4.2.1. S c chy n v s c lao ng......................................................67 4.2.2. S c ngp ng, st l t:...............................................................68 4.2.3. S c giao thng ..............................................................................69 CHNG 5........................................................................................................71 CAM KT THC HIN BIN PHP BO V MI TRNG....................71 CHNG 6........................................................................................................73 CC CNG TRNH X L MI TRNG, ................................................73 CHNG TRNH QUN L V GIM ST MI TRNG.....................736.1. DANH MC CC CNG TRNH X L MI TRNG............................................73 6.2. CHNG TRNH QUN L V GIM ST MI TRNG:....................................73

6.2.1 Chng trnh qun l mi trng......................................................73 6.2.1 Chng trnh gim st mi trng: ..................................................74 6.2.2. Kinh ph cho quan trc v gim st mi trng:..............................75 CHNG 7 .......................................................................................................77 D TON KINH PH CHO CC CNG TRNH MI TRNG.................77 ...........................................................................................................................77 CHNG 8 .......................................................................................................78 THAM VN KIN CNG NG...............................................................78 CHNG 9........................................................................................................80 CH DN NGUN CUNG CP S LIU, D LIU ....................................80---------------------------------------------------------------------------------------------------------------------------------

Ch u t: S Giao thng vn ti H Tnh C quan t vn: Vin Khoa hc Vt liu - Vin Khoa hc v Cng ngh Vit Nam

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----------------------------------------------------------------------------------------------V PHNG PHP NH GI.....................................................................809.1 NGUN CUNG CP S LIU, D LIU.......................................................................80

9.1.1. Ngun ti liu, d liu tham kho:...................................................80 9.1.2 Ngun ti liu, d liu do ch d n t to lp.................................819.2 PHNG PHP P DNG TRONG NH GI TC NG MI TRNG:........81

9.2.1. Danh mc cc phng php s dng:..............................................81 9.2.2. nh gi mc tin cy ca cc phng php s dng.............839.3 NHN XT V MC CHI TIT, TIN CY CA CC NH GI...............83

KT LUN V KIN NGH............................................................................84

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----------------------------------------------------------------------------------------------DANH MC CC BNG Bng 1.1: Thng k cc tiu chun k thut......................................................11 Bng 1.2: Thng k cc loi cu nh v trung bnh............................................15 Bng 2.1. Kt qu quan trc mi trng khng kh - ting n ...........................27 Bng 2.2. Kt qu quan trc mi trng nc khu vc d n ...........................28 Bng 2.3. T l sinh, cht v t l tng t nhin dn s......................................28 Bng 2.4. Lao ng bnh qun khu vc NN theo ngnh kinh t (n 12/01/2007)..........................................................................................................29 Bng 2.5: Dn s v phn b dn c (tnh n ngy 12/01/2007)......................30 Bng 2.6. Kt qu thc hin mt s ch tiu kinh t nm 2006, k hoch 2007. 30 Bng 3.1 Ti lng cht nhim kh t cc phng tin trong 1 ca thi cng...39 Bng 3.2. Mc p m t cc phng tin giao thng v my xy dng.............40 Bng 3.3: i tng v quy m b tc ng trong giai on gii phng mt bng .............................................................................................................................41 Bng 3.4: i tng v quy m b tc ng trong giai on thi cng cng trnh .............................................................................................................................41 Bng 3.5: i tng v quy m b tc ng trong giai on vn hnh d n.....42 Bng 3.6. Cc yu t c kh nng gy nh hng tiu cc n mi trng khi 43 thc hin d n....................................................................................................43 Bng 3.7: Ti lng cht nhim thi vo mi trng......................................46 Bng 3.8: Ma trn nh gi tc ng ca Cng trnh ln mi trng.................56 Bng 7.1. Kinh ph BVMT ca d n................................................................77

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M U1. XUT X CA D N

H Tnh l mt trong nhng im nt quan trng nht trong hnh lang ng Ty ni bin ng, cc tnh Bc Trung B Vit Nam vi nc bn Lo, vng ng Bc Thi Lan v cc nc trong khi ASEAN. V tr a l lm cho H Tnh tr thnh mt u mi giao lu kinh t quan trng. Ngun ti nguyn thin nhin phong ph nh qung st, thic, mng gan, xt titan, nc khong thin nhin t tiu chun quc t, ti nguyn rng, bin, vng rng nguyn sinh V Quang, K G c nhiu g, ng vt qu himl nhng li th ang dng tim nng. Cng vi vic xy dng Khu kinh t Vng ng, nng cp Cng Vng ng, vic khai thc c hiu qu m st Thch Kh c vai tr rt quan trng trong vic pht trin kinh t x hi ca tnh, v vy vic xy dng tuyn ng ni t QL1A vo m st Thch Kh l vn cn thit v cp bch. Tuyn ng khng nhng to iu kin khai thc m st Thch Kh mt cch c hiu qu m cn to iu kin pht trin kinh t, du lch, giao lu vn ho ca nhn dn trong khu vc vi cc a phng khc trong v ngoi tnh. Thc hin Lut Bo v mi trng (BVMT) c Quc hi nc Cng ho x hi ch ngha Vit Nam thng qua ngy 29/11/2005 v c hiu lc k t ngy 01/7/2006, Ngh nh s Ngh nh s 80/2006/N-CP ngy 09/8/2006 ca Chnh ph v vic quy nh chi tit v hng dn thi hnh mt s iu ca Lut Bo v mi trng, Thng t s 08/2006/TT-BTNMT ngy 08/9/2006 ca B Ti nguyn v Mi trn hng dn v nh gi mi trng chin lc, nh gi tc ng mi trng v cam kt bo v mi trng. S Giao thng vn ti H Tnh hp ng vi Phn vin Cng ngh khong sn v Mi trng - Vin Khoa hc Vt liu - Vin Khoa hc v Cng ngh Vit Nam tin hnh o c, ly mu phn tch cc thnh phn mi trng lp Bo co TM ca d n u t xy dng tuyn ng ni Quc l 1A vi m st Thch Kh, tnh H Tnh trnh c quan c thm quyn thm nh v ra quyt nh ph duyt. Bo co TM l c s khoa hc nh gi v d bo nhng tc ng tch cc, tiu cc, cc tc ng trc tip, gin tip, trc mt v lu di t cc hot ng ca d n i vi mi trng t xut cc bin php gim thiu cc tc ng tiu cc, ri ro mi trng gp phn bo v mi trng v pht trin bn vng.---------------------------------------------------------------------------------------------------------------------------------


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----------------------------------------------------------------------------------------------2. CC CN C PHP L V K THUT LP BO CO TM

- Lut bo v mi trng nm 2005. - Lut t ai 2003. - Lut Khong sn sa i, b sung nm 2005. - Lut bo v v pht trin rng nm 2004. - Ngh nh s 80/2006/N-CP ngy 09/8/2006 ca Chnh ph v vic quy nh chi tit v hng dn thi hnh mt s iu ca Lut Bo v mi trng. -Ngh nh s 81/2006/N-CP ngy 09/08/2006 ca Chnh ph v x pht vi phm hnh chnh trong lnh vc bo v mi trng. -Ngh nh s 181/2004/N-CP ngy 29/10/2004 ca Chnh ph v vic hng dn thi hnh Lut t ai. -Ngh nh s 149/2004/N-CP ngy 27/7/2004 ca Chnh ph quy nh vic cp php thm d, khai thc, s dng ti nguyn nc, x nc thi vo ngun nc. - Ngh nh s 160/2005/N-CP quy nh chi tit v hng dn thi hnh Lut Khong sn v Lut sa i, b sung mt s iu ca Lut Khong sn. - Ngh nh s 137/2005/N-CP ngy 09/11/2005 v ph bo v mi trng i vi khai thc khong sn. - Ngh nh 21/2008/N-CP ca chnh ph ban hnh ngy 28 thng 2 nm 2008 v sa i b sung mt s iu ca Ngh nh 80/2006/N-CP ngy 09/08/2006 ca chnh ph v vic quy nh chi tit v hng dn thi hnh mt s iu Lut bo v Bo v mi trng. - Thng t s 08/2006/TT-BTNMT ngy 08/9 nm 2006 hng dn v nh gi mi trng chin lc, nh gi tc ng mi trng v cam kt bo v mi trng. - Thng t s 12/2006/Q - BTNMT ngy 26/12/2006 hng dn iu kin hnh ngh, m s qun l cht thi nguy hi. - Thng t s 83/2002/TT-BTC ngy 25/9/2002 ca B ti chnh quy nh v ch thu, np v qun l s dng ph, l ph v tiu chun o lng cht lng. - Quyt nh s 23/2006/Q-BTNMT ngy 26/12/2006 v vic ban hnh danh mc cht thi nguy hi. - Quyt nh s 1969/2006/Q-BKHCN ngy 28/7/2006 ca B Khoa hc v Cng Ngh v vic cng b chnh thc vic ban hnh cc tiu chun Vit Nam v mi trng. - Quyt nh s 2242- Q/KHKT-PC ngy 12/91997 ca B trng B Giao---------------------------------------------------------------------------------------------------------------------------------


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----------------------------------------------------------------------------------------------thng vn ti ban hnh Quy ch bo v mi trng trong ngnh giao thng vn ti. - Quy ch BVMT ngnh xy dng ban hnh theo quyt nh s 29/1999/Q-BXD ngy 22/10/1999 ca B trng B Xy dng. - Thng bo s 153/TB-VPCP ca Vn phng Chnh ph ngy 16 thng 8 nm 2007 v kt lun ca Ph Th tng Thng trc Chnh ph Nguyn Sinh Hng ti bui lm vic vi lnh o H Tnh. - Quyt nh s 928 Q/SGT-KH ngy 12/7/2005 ca S GTVT H Tnh v vic chn thu kho st lp d n du t xy dng ng ni Quc l 1A vi m st Thch Kh - tnh H Tnh. - Quyt nh s 1549 Q/UB-CN1 ngy 02/8/2005 ca UBND tnh H Tnh v vic ph duyt nhim v, d ton lp d n, kho st, thit k cng trnh ng ni Quc l 1A vi m st Thch Kh - tnh H Tnh. - Quyt nh s 1969/Q-UBND ngy 14/8/2006 ca UBND Tnh H Tnh v vic ph duyt d n u t xy dng cng trnh ng ni QL1A vi m st Thch Kh tnh H Tnh. - Cc tiu chun Vit Nam v mi trng nm 1995, 1998, 2001, 2002, 2005. (a) Tiu chun cht lng khng kh: - TCVN 5937- 2005: Cht lng khng kh Tiu chun cht lng khng kh xung quanh. - TCVN 5938- 2005: Cht lng khng kh - Nng ti a ca mt s cht c hi trong khng kh xung quanh. - TCVN 5939- 2005: Cht lng khng kh - Tiu chun kh thi cng nghip i vi cc cht v c. - TCVN 5940 - 2005: Cht lng khng kh - Tiu chun kh thi cng nghip i vi cc cht hu c. (b) Tiu chun cht lng nc - TCVN 5942- 1995: Cht lng nc Tiu chun cht lng nc mt - TCVN 5944- 1995: Cht lng nc - Tiu chun cht lng nc ngm. - TCVN 5945- 2005: Nc thi cng nghip Tiu chun thi -TCVN 6772- 2000: Cht lng nc - Nc thi sinh hot - Gii hn nhim cho php. (c) Tiu chun ting n---------------------------------------------------------------------------------------------------------------------------------


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----------------------------------------------------------------------------------------------- TCVN 5949-1998: m hc - Ting n khu vc cng cng v dn c- Mc n ti a cho php. - TCVN 5948- 1999: m hc - Ting n phng tin giao thng ng b pht ra khi tng tc Mc n ti a cho php (d) Tiu chun rung ng - TVN 6952-2001: Rung ng v chn ng Rung ng do cc hot ng xy dng v sn xut cng nghip Mc n ti a cho php i vi mi trng khu cng cng v dn c. (e) Tiu chun v sinh mi trng lao ng - Cc tiu chun v v sinh mi trng lao ng ban hnh theo Quyt nh s 3733/2002/Q- BYT ngy 10/10/2002 ca B trng b Y t.3. T CHC THC HIN LP BO CO TM

Bo co TM D n u t xy dng tuyn ng ni Quc l 1A - m st Thch Kh, tnh H Tnh do Ch u t l S Giao thng Vn ti H Tnh thc hin vi s t vn ca Vin Khoa hc Vt liu, phi hp cht ch vi cc cn b, chuyn gia thuc cc lnh vc: mi trng, xy dng, a chnh, giao thng... thc hin v hon thin bo co TM. - C quan t vn: Phn vin Cng ngh khong sn v Mi trng - Vin Khoa hc Vt liu - Vin Khoa hc v Cng ngh Vit Nam. + Ngi i din: PGS.TS Nguyn Xun Tng Chc v: Phn vin trng + a ch: Phng 302/B1. S 18 - ng Hong Quc Vit, Cu Giy, HN. - Cc cn b thc hin chnh: + PGS.TS Nguyn Xun Tng - Phn vin trng - Ch tr. + KS Nguyn Minh Chu - Gim c S GTVT - Thnh vin + KS Nguyn Trn - Ph gim c S GTVT - Thnh vin + KS L Trng Long - Ph gim c S GTVT - Thnh vin + ThS Phan Vn Trng - NCV Vin KHVL - Thnh vin. + ThS Nguyn Th Hng - NCV Vin KHVL - Thnh vin. + C nhn T Vn Hnh - NCV Vin KHVL - Thnh vin. + KS. L Th Hoi Thu - NCV Vin KHVL - Thnh vin.---------------------------------------------------------------------------------------------------------------------------------


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----------------------------------------------------------------------------------------------+ KS. L Th Ninh - NCV Vin KHVL - Thnh vin. + C nhn Nguyn c Ni - NCV Vin KHVL - Thnh vin. - Cc bc thc hin chnh bao gm: + Thnh lp t cng tc v phn cng nhim v lp Bo co TM. + Nghin cu v kho st hin trng khu vc D n: Hin trng mi trng, iu kin t nhin v kinh t x hi a phng. + Tham vn kin cng ng. + Xy dng cc bo co chuyn . + Lp bo co tng hp. + T chc Hi tho xin kin chuyn gia, chnh sa theo kin hi ng thm nh. + Trnh cc c quan c thm quyn thm nh, ph chun bo co.

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CHNG 1 M T TM TT D N1.1. TN D N: U T XY DNG TUYN NG NI QUC L 1A - M ST THCH KH, TNH H TNH.

1.2. CH D N:

- S Giao thng vn ti H Tnh. - a ch: S 143, ng H Huy Tp, thnh ph H Tnh, tnh H Tnh. - in thoi: 039.856.713 - Ngi i din: ng Nguyn Minh Chu - Chc v: Gim c1.3. V TR A L CA D N

Tuyn ng ni Quc l 1A vi m st Thch Kh, tnh H Tnh c im u Km0+00 giao vi Quc l 1A ti Km504+400, thuc a phn x Thch Long huyn Thch H (trng vi im u ca d n xy dng Quc l 1A on trnh thnh ph H Tnh) v im cui Km25+118 giao vi Quc l 1A ti Km517+950 thuc x Cm Vnh huyn Cm Xuyn (trng vi im cui ca d n xy dng Quc l 1A on trnh thnh ph H Tnh). Tng chiu di tuyn ng l: L=25,118km. S v tr c th hin hnh sau.

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----------------------------------------------------------------------------------------------1.4 NI DUNG CH YU CA D N

1.4.1 Quy m xy dng v cp hng cng trnh: Cp hng cng trnh: Theo ch trng c xc nh ti cc cuc hp thng qua bo co u k, gia k v cui k d n xy dng ng ni Quc l 1A vi m st Thch Kh - th x H Tnh (nay l thnh ph H Tnh), tnh H Tnh, cp hng ca cc ton on tuyn trong d n ny l ng cp III ng bng vi vn tc thit k V=80km/h (theo TCVN 4054 - 05).

Quy m cng trnh:im u tuyn: Km0+00 Km504+400 QL1A thuc a phn x Thch Long, huyn Thch H (trng vi im u ca d n tuyn trnh TP H Tnh). im cui tuyn: Km25+250 Km517+800 QL1A thuc x Cm Vnh, huyn Cm Xuyn (trng vi im cui ca d n tuyn trnh TP H Tnh). Tng chiu di ton tuyn l: L=25,118km.

Theo Quy hoch, tuyn ng c qui m mt ct ngang nh sau: B rng nn ng B rng mt ng B rng di phn cch B rng l t : 24,0 m. : 2 x 10,5m. : 2,0m. : 2 x 0,5m.

Trc mt, u t tuyn ng theo quy m nh sau: B rng nn ng B rng mt ng B rng l gia c B rng l t : 12,0 m. : 7,0m. : 2x2,0m. : 2x0,5m.

Bng 1.1: Thng k cc tiu chun k thut Stt 1 2 3 4 Tiu chun Cp ng Vn tc thit k Bn knh ng cong nm ti thiu Bn knh ng cong ng li nh nht V tnh km/h M M Kt qu Cp III 80 250 5000

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----------------------------------------------------------------------------------------------5 6 7 8 9 10 11 Bn knh ng cong ng lm nh nht B rng nn ng B rng mt ng B rng l ng B rng l gia c, ln th s D dc dc ln nht dc ngang: Mt ng L gia c L ng Siu cao ln nht M uyn n hi yu cu Eyc Ti trng thit k - Tuyn - Cng trnh cng - Cu Tn sut thit k - Tuyn, cng, cu nh - Cu ln, cu trung M M M M M % % % % % daN/cm2 trc on xe on xe % % 2000 12,0 3,5x2 2,5 x 2 2,0 x 2 6 2 2 4 6 1530 12T H30-XB80 HL93 2 1

9 10

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Phn ng giao thng:

V bnh : y l phng n xy dng tuyn ng mi hon ton nn trong qu trnh thit k bnh tuyn b khng ch bi cc im chnh nh sau: im u tuyn. Cc khu tp trung dn c, miu mo n cha, trng hc. Cc cng trnh vt sng, ng b. im cui tuyn.

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Tuyn i ngoi phm vi TP H Tnh. T im u Km0Km504+400 QL1A thuc x Thch Long, tuyn ln lt i qua a phn cc x Thch Sn, H , Thch nh, Thach Kh, Thch Lc, Thch Tr, Thch Thng, Cm Bnh, Cm Vnh. Tuyn vt qua sng Nghn ti Km4+254, ct tnh l 9 ti Km4+890, vt sng Ca St ti Km 7+560, ct tnh l 3 ti Km 12+668. Chiu di tuyn L=12,658km. Ti x Thch nh v Thch Kh, tuyn i gia b k sng Ca St v ranh gii bi thi ca m st Thch Kh, cch b k trung bnh 150m v ranh gii bi thi khong 200m, khng nh hng n quy hoch ca m st. Tt c cc ng cong trn tuyn u c thit k chuyn tip dng Cltit. Ton phn on 1 c 07 ng cong, trong :---------------------------------------------------------------------------------------------------------------------------------


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01 ng cong c R = 5000m. 01 ng cong c R = 2000m. 05 ng cong c R > 250m. Nn ng:

Cc phng n tuyn u i qua vng a hnh ng bng trng, iu kin a cht cng trnh tng i n nh. Mt s v tr tuyn i qua vng c a cht tng i yu phi x l c bit, ti cc on ny tu theo tnh hnh a cht s p dng cc bin php x l nn ng ring.

Mt ng:

Da trn c s mun n hi yu cu, ti trng tnh ton, tin hnh tnh ton kt cu mt ng v l gia c theo tiu chun thit k kt cu o ng mm 20TCN 21193 vi cp ca kt cu mt l mt ng cp cao A1. Kt qu tnh ton nh sau: + + + + +

M un n hi yu cu: Eyc = 1530daN/cm2. Trnh t b tr cc lp kt cu o ng t trn xung nh sau: B tng nha cht ht trung C20 dy 5cm. B tng nha ht th R31,5 dy 7cm. Cp phi dm loi I dy 20cm. Cp phi dm loi II dy 25cm. Nn ng t i dy 50cm, K98 t Eo 400daN/cm2. L gia c c kt cu ng nht vi kt cu mt ng xe chy

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Cc loi cng trnh trn tuyn

Cc cu ln:

- Trn tuyn c hai cu ln qua sng Nghn (cu Thch Sn) v sng Ca St (cu Ca St). - Tnh khng thng thuyn: theo vn bn s 132 CV/SGT-QLGT ngy 07/02/2006 ca S GTVT H Tnh v vic cung cp s liu thng thuyn cu bc qua Sng Nghn xc nh rng Sng Nghn l sng cp 3 v tnh khng thng thuyn ti v tr cc cu nu trn nh sau: + Cu Thch Sn: Tng chiu di Lc = 312,14m, c kh gii hn thng thuyn bng kh gii hn thng thuyn cu H (do cu Thch Sn nm h lu cu H ). Khu ti thiu cho khoang thng thuyn B=33m. Chiu cao tnh khng ti thiu---------------------------------------------------------------------------------------------------------------------------------


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----------------------------------------------------------------------------------------------cho khoang thng thuyn l 4m tnh cho mc nc triu cng ln nht ti v tr cu H . + Cu Ca St: Lc=479,85m c khu ti thiu cho khoang thng thuyn l 50m. Chiu cao tnh khng ti thiu cho khoang thng thuyn l H=7m (tnh t mc nc thng thuyn H=5%). - Cu c thit k vnh cu bng BTCT. B rng cu: bng kh nn ng 12m. Tn sut thit k: P=1%, cp ng t cp 6.

Cng thot nc thu li:

- Trn tuyn c rt nhiu mng thu li ti tiu ct ngang ng, ti cc v tr phi xy dng cng m bo s vn hnh ca h thng ti tiu. - Cc cng thu li ny c lm mi vi kt cu cng hp b tng ct thp c khu nh nht l (1,0x1,0)m hoc cng trn c khu D 1,0m tu theo chiu cao t p ti tng v tr khu tnh ton m bo kh nng thot ca cng trnh. Khu ca cng c thit k da trn c s thng nht bng vn bn gia S Nng nghip v Pht trin nng thn H Tnh hoc c quan qun l vn hnh h thng ti tiu vi n v t vn thit k. - Ngoi ra vic thit k m bo s vn hnh thng sut h thng ti tiu khi tuyn ng c xy dng cn c cn nhc iu chnh dng chy knh mng (nn chnh hoc ct dng) sao cho gim c khi lng xy dng cng nh thun li cho vn hnh.

Cng thot nc lu vc:

- B tr cc cng thot nc lu vc ngang ng vi cc loi cng trn BTCT c khu D 1,0m hoc cng hp c khu ph hp tu theo chiu cao t p v kt qu tnh ton thu vn cng trnh. - Khu cc cng lu vc c tnh ton theo qui trnh tnh ton cc c trng dng chy l 22TCN 220-95. Cng k thut: Cc cng k thut c b tr ti cc v tr giao ct vi ng nha c, khu cng (1x1)m. - Trn ton tuyn ngoi 2 cu ln (Cu Thch Sn v Cu Ca St) cn c 4 cu nh v 132 cng cc loi c b tr trn ton tuyn m bo vic thot nc v ma ma bo khng gy ngp ng cc b

Cc cng trnh phng h: k, tng chn, gia c ta luy:

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----------------------------------------------------------------------------------------------- i vi cc v tr nn ng qua vng ngp nc, i men theo sng sui hoc p cao th xy dng gia c mi ta luy bng cc tm BTCT lp ghp tng n nh cho cng trnh. - Cc v tr p cao c thit k cc tiu hoc tng h lan theo qui nh ca iu l bo hiu ng b 22TCN 237-01 i vi cc v tr nn ng qua vng ngp nc, i men theo sng sui hoc p cao th gia c mi ta luy tng n nh cho cng trnh, bin php gia c bao gm: - Ti cc v tr nn ng b ngp nc thng xuyn c gia c bng tm p kn i vi phn di mc nc ngp thng xuyn, phn trn mc nc ngp thng xuyn c gia c bng tm p h c l trng c gia. Kch thc tm kn (40x40x5)cm, kch thc tm h (40x40x5)cm khot l D26 gia tm (thit k in hnh c p dng d n ng H Ch Minh).

i cc v tr khc th tin hnh trng c mi taluy bo v. Cc loi cu trung bnh v nh (Bng 1.2): Bng 1.2: Thng k cc loi cu nh v trung bnh.

Stt 1 2 3 4

Tn cu (L trnh cu) Cu Khe Bin (Km14+53,00) Km19 + 712,00 Km21 + 16,50 Km22 + 400,00

S nhp (m) 1x12 1x21 1x18 1x12

Chiu di cu (m) 22,10 33,10 22,90 24,10

Ghi ch Kt cu nhp dm bn BTCT DUL Kt cu nhp dm bn BTCT DUL Kt cu nhp dm bn BTCT DUL Kt cu nhp dm bn BTCT DUL

- Cc cu c thit dng cu dm n gin. i vi cu s dng kt cu nhp dm bn BTCT DUL th mt ct ngang gm 12 dm, mi dm rng 1,0m. Cc lp mt cu gm: + B tng nha ht trung dy 5cm. + Lp phng nc dy 4mm. + Lp BTCT mt cu dy 10cm. Gi cu dng gi cao su. Khe c dn dng khe co dn cao su.

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----------------------------------------------------------------------------------------------Lan can tay vn bng thp m km. - Kt cu h b (m cu) dng m ch U bng BTCT, b m c t trn h mng cc BTCT kch thc mt ct ngang (40x40)cm.

Cc nt giao thng (giao ct): Trn phn on tuyn c cc nt giao ln nh sau:

-

+ Nt giao vi QL1A u tuyn (nt s 1): nt ny c thit k trong d n xy dng Quc l 1A on trnh th x H Tnh (nay l thnh ph H Tnh). + Nt giao vi ng tnh l 9 (nt s 2): Theo qui hoch ca a phng, tnh l 9 c qui m l ng cp 4 ng bng, b rng nn ng 9m, mt ng 6m v l ng 1,5m. Do nt giao ny c thit k giao bng, bn knh cc ng cong r xe ti thiu 25m. Phm vi ca nt trn tuyn chnh thit k ln ch xe r tri vo ng nhnh bng cch b tr di phn cch cng c b rng thay i. Trn tuyn chnh, b tr ln chuyn tc cho xe r phi vo ng nhnh v t ng nhnh vo ng chnh. Trc khi vo ln chuyn tc, thit k di chuyn tip hnh nm, chiu di 50m. + Nt giao vi ng ni t tuyn chnh n ng 22 12 (nt s 3): Theo qui hoch ca a phng, tuyn ng ny tng lai c qui m l ng cp 3 ng bng, b rng nn ng 12m, mt ng 7m v l ng 2,5m mi bn, l gia c 2m mi bn. Do nt giao ny c thit k giao bng, bn knh cc ng cong r xe ti thiu 25m. Trn tuyn chnh v c tuyn nhnh, b tr ln chuyn tc cho xe r phi vo ng nhnh v t ng nhnh vo ng chnh. Trc khi vo ln chuyn tc, thit k di chuyn tip hnh nm, chiu di 50m. Ngoi ra cn thit k b tr cc di dn hng nhm tng an ton giao thng. + Nt giao vi ng tnh l 3 (nt s 4): Theo qui hoch ca a phng, tnh l 3 c qui m l ng cp 3 ng bng, b rng nn ng 12m, mt ng 7m v l ng 2,5m, l gia c 2m. Do nt giao ny c thit k giao bng, bn knh cc ng cong r xe ti thiu 25m. Phm vi ca nt trn tuyn chnh v tuyn nhnh thit k ln ch xe r tri vo ng nhnh v ln n xe r tri t ng nhnh vo ng chnh bng cch b tr di phn cch cng c b rng thay i. Trn tuyn chnh, b tr ln chuyn tc cho xe r phi vo ng nhnh v t ng nhnh vo ng chnh. Trc khi vo ln chuyn tc, thit k di chuyn tip hnh nm, chiu di 50m. - Cc nt giao khc thit k n gin, khng b tr o, ng cong r xe m bo theo TCVN 4054-05, R 25m. * i vi cc giao ct dn sinh (giao bng): - Cc nt giao khc trn tuyn (ng huyn, ng x): thit k n gin, vut ni vo cc ng hin hu m bo an ton xe chy.---------------------------------------------------------------------------------------------------------------------------------


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----------------------------------------------------------------------------------------------- Vut ni cao vo chnh tuyn vi dc 4%, bn knh ng cong vut ni ti thiu R=3,0m. Kt cu o ng ti v tr vut ni: + B tng nha ht mn dy 5cm. + Nha thm bm tiu chun 1kg/m2 + Mng cp phi dm loi 1 dy 30cm. - Phm vi lm mt ng trn on vut ni: i vi ng giao dn sinh c mt ng hin ti l ng nha hoc b tng xi mng th mt ng mi c t mp l gia c n ht on vut ni. i vi ng giao dn sinh l ng t, mt ng c thc hin t mp l gia c v pha ng giao 5,5m.

1.4.2. Phng n thi cngThi cng nn mt ng v cng thot nc. - o p nn ch yu vi cc loi dy chuyn thi cng hin i t khu to mui luyn n gt mng. - Trnh t thi cng c tin hnh nh sau: + Ht t mu, v sinh. + o mng xy cng, kt hp vi p t tng lp. + Lu nn, to mui luyn ng t K98. + Thi cng mt ng. + Lp t h thng cc tiu, bin bo, sn k vch. + V sinh hon thin.

Thi cng nn ng : - Nn ng c thi cng p bng cp phi t i, cht m bo K0,95, qu trnh thi cng phi ph hp vi cc qui nh sau:

+ Quy trnh kim tra nghim thu cht ca nn t trong ngnh GTVT22TCN 02-71. + Qui trnh thi cng & nghim thu nn ng p bng cp phi thin nhin 22TCN304-03.

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----------------------------------------------------------------------------------------------Thi cng cc lp mt ng - Cc lp mt ng phi c thi cng ph hp vi cc qui trnh qui phm thi cng v nghim thu sau: + Quy trnh thi cng v nghim thu lp cp phi dm trong kt cu o ng t 22 TCN 334-06. + Quy trnh thi cng v nghim thu mt ng BTN 22 TCN 249-98. + Quy trnh th nghim xc nh m un n hi chung ca o ng mm bng cn Benkelman 22 TCN 251-98. - Ch c thi cng mt ng sau khi nn c t c c kt cn thit (U90%) v tc bin dng m bo theo qui nh ti 22TCN 262-2000. - Thi cng mt ng dng phng php thi cng cun chiu m bo s ng u ca cc lp v bng phng ca mt theo yu cu k thut.

Thi cng cu. - Chn thi im thi cng vo ma kh. Mc nc thi cng thp. - Thi cng h mng bng cc bin php o trn, trnh t nh sau : + o mng dn nc. + p b vy pha thng lu, h lu cu. + o mng m cu, dng my bm ht kh h mng. + Ghp vn khun b tng mng. + Lp h mng. + Ghp vn khun b tng thn m, tng cnh. + Ghp vn khun b tng m h. + Lp t cu dm. + p cui si sau hai m cu. + Thi cng lp mt cu.

1.4.3 Phng n cung cp nguyn vt liu xy dng cho cng trnh.Qua iu tra cc m vt liu ti a bn thnh ph v cc i phng ln cn c th s dng mt s v tr m nh sau: - cc loi ly ti:

+ M Bi Vt - th x Hng Lnh - tnh H Tnh c ly vn chuyn trung bnhl: 38km (tr lng 200.000m3).

+ M Thch nh hin ang khai thc: thuc a bn x Thch nh, c lyvn chuyn n tuyn ng gm 20,5km ng b tng nha v 2km ng t, tr lng khng hn ch.---------------------------------------------------------------------------------------------------------------------------------


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----------------------------------------------------------------------------------------------+ M Thch Bn hin ang khai thc: thuc a bn x Thch Bn, c ly vnchuyn n a im gm 20,5km ng b tng nha v 1,5km ng t, tr lng khng hn ch. - Ct dng cho b tng ly ti m ct Cu Rc - huyn Cm Xuyn - tnh H Tnh: tr lng 50.000m3/nm, c ly vn chuyn trung bnh n cng trnh l 37km (trong c 1,5km ng cng v v 36,5km ng b tng nha). - St thp, xi mng, g cc loi v nha ng lng nha ly ti thnh ph H Tnh c ly vn chuyn trung bnh n cng trnh l 11km. - t p ly ti:

+ M t Thch in, x Thch in, huyn Thch H, tnh H Tnh: tr lng150.000 - 250.000m3, c ly vn chuyn n cng trnh 19,5km ng b tng nha.

+ M i ng Lc thn 3 x Nam Hng - huyn Thch H - Tnh HTnh: tr lng 200.000 300.000m3, c ly vn chuyn n cng trnh 20,5km (trong 1km ng t v 19,5km ng b tng nha).

+ M i p Cu Trng x Ngc Sn - huyn Thch H - Tnh H Tnh: trlng 200.000-270.000m3, c ly vn chuyn trung bnh n cng trnh l 21,5km ng b tng nha.

+ M i 14 -x Ngc Sn - huyn Thch H - Tnh H Tnh: tr lng1.000.000-1.500.000m3, c ly vn chuyn trung bnh n cng trnh l 23,5km ng b tng nha. - Ct p nn ng, s dng ct ly ti cc m ct c qui nh ti vn bn s 491/TNMT ngy 22/7/2005 ca S Ti nguyn v Mi trng H Tnh, c th l cc m ct trn a bn 2 x Thch Kh v Thch Hi:

+ M ct Thch Hi ang khai thc: thuc a bn x Thch Hi, c ly vnchuyn n a im 18,5km ng b tng nha v 0,5km ng t, tr lng khng hn ch.

+ M ct Thch Kh hin ang khai thc: thuc a bn x Thch Kh, c lyvn chuyn n a im gm 17,5km ng nha v 0,5km ng t, tr lng khng hn ch. - , ct v nha ng dng cho b tng nng ly ti th x Hng Lnh cch trm trn Hng Lnh trung bnh 1Km. - B tng nha ly ti trm trn Hng Lnh c ly vn chuyn trung bnh 33 km. - Cc v tr t thi c : + Dc tuyn, ti cc v tr san lp ao h, m ly, c ly vn chuyn i trong phm vi khong 1km.

+ Ti cc bi thi trn a bn thnh ph H Tnh, huyn Thch H v CmXuyn, c ly vn chuyn trung bnh khong 4km.---------------------------------------------------------------------------------------------------------------------------------


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----------------------------------------------------------------------------------------------Ghi ch: Bo co TM ny khng bao gm phn khai thc khong sn, vt liu xy dng v cc trm trn b tng phc thi thi cng cng trnh.

1.4.4 Phng n n b ti nh c:Nh vy, khi d n hnh thnh, mt b phn dn c trn tuyn l 115 h s b nh hng gii to, trong khi lng gii to trng khong l 89 h. Vi s lng cc h gii to trng khng nhiu nn vic nh hng n i sng ca dn c dc tuyn l tng i t. Cc phng n n b v ti nh c d kin nh sau:

Phng n 1: n b di di trn gi bng tin. Phng n 2:

- n b di di bng vic cp t ti ch dn xy dng nh mi. Khu ti nh c vi din tch 27.300m2 (bao gm t 280m2/h v t h tng c s) d kin b tr dc theo tuyn thuc cc x H , Thch Tr, Thch Thng hoc Cm Vnh. - n b phn t trn c s xy dng nh bng cp t mi tng ng, phn t th c cn li s c n b bng tin. mi.

n b nh ca, cng trnh bng tin xy dng nh mi. H tr tin ph d, n nh ngh nghip v tin thu nh ch cho n khi c ni Phng n 3: n b di di bng vic u tin cho mua nh ti nh c. n b trn c s nh gi t ai, nh ca bng tin mt.

-

- u tin cho mua nh xy mi tng ng ti cc khu th (hoc khu di dn) ca th x theo hnh thc t hng. mi. Qua iu tra v phn tch cc phng n trn chng ti la chn phng n 2 v nguyn vng ca a s nhn dn l c ti nh c ngay ti phng/x ( gn b vi phn t nng nghip cn li). H tr tin ph d, n nh ngh nghip v tin thu nh ch cho n khi c ni

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----------------------------------------------------------------------------------------------- D n p dng phng n ti nh c ti ch vi cc im ti nh c c UBND tnh ph duyt c th: x Thch Long 16.732m2, H 36.426m2, Thch Kh c 2 v tr: v tr 1 l 13.659m2, v tr 2 l 32.784m2, Thch nh c 3 v tr: v tr 1 l 22.622m2 (ti xm 8), v tr 2 l 12.894m2 (xm 3), v tr 3 l 11.334m2(xm 11).

1.4.5. Kinh ph thc hin d n: Tng mc u t: Tng kinh ph thc hin d n l 524.331.897.421 ng, trong : - Tng mc u t giai on 1: 344.818.238.109 ng, trong : + Gi tr xy lp sau thu: 279.205.132.021 ng + Chi ph QLDA v chi ph khc: 17.529.256.523 ng + n b gii to : 16.736.737.010 ng + D phng ph: 31.347.112.555 ng - Tng mc u t giai on 2: 179.513.659.312 ng, trong : + Gi tr xy lp sau thu: 133.455.229.208 ng + Chi ph QLDA v chi ph khc: 8.864.100.990 ng + n b gii to : 20.874.905.540 ng + D phng ph: 16.319.423.574 ng

Ngun vn: Ngn sch hng nm ca a phng c s h tr ca TW. 1.4.6. Tin thc hin d n- Lp v duyt d n TXDCT: 8/2005 - 06/2006 * Giai on 1: - Thit k k thut v BVTC: 07/2006 09/2006 - Khi cng: 10/2006; Hon thnh: 10/2008 *Giai on 2: - Thit k k thut v BVTC: 07/2008 10/2008 - Khi cng: 10/2008; Hon thnh : 12/2009

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CHNG 2IU KIN T NHIN, MI TRNG V KINH T X HI2.1. IU KIN T NHIN V MI TRNG

2.1.1 V tr a l:Tuyn ng ni Quc l 1A vi m st Thch Kh, tnh H Tnh c im u Km0+00 giao vi Quc l 1A ti Km504+400, thuc a phn x Thch Long huyn Thch H (trng vi im u ca d n xy dng Quc l 1A on trnh thnh ph H Tnh) v im cui Km25+118 giao vi Quc l 1A ti Km517+950 thuc x Cm Vnh huyn Cm Xuyn (trng vi im cui ca d n xy dng Quc l 1A on trnh thnh ph H Tnh). Tng chiu di tuyn ng l: L=25,118km

2.1.2 a hnh a mo:Hin khu vc tuyn i qua khng c ng c, a hnh khu vc tuyn i qua vng tng i bng phng, mng li h thng giao thng thu b thun tin cho vic thi cng d dng thun li. Tuyn nm pha ng th x H Tnh (nay l thnh ph H Tnh), ch yu i qua rung la, rung mui, t ca dn ang canh tc, vng snh ly v ct qua mt s khu dn c ti x Thch Long, Thch Sn, H , Thch nh, Thch Kh, Thch Lc, Thch Tr, Thch Thng, Cm Bnh v Cm Vnh. Tuyn ct qua 2 sng ln l sng Nghn v sng Ca St v nhiu knh mng thu li khc. Cao trnh trung bnh ton tuyn khong 1,0m - 2,00m so vi mc nc bin. - T Km22+400 - Km25+250 phm vi t chim dng ca tuyn nh hng n cc m t x Cm Bnh v x Cm Vnh. - T Km14+100 - Km17+700 tuyn bn phi cch knh N9 khong 20m. - Khu vc kho st ch yu qua vng dn c, rung la, rung la, m ly. Qa trnh thnh to a tng ch yu l s lng ng trm tch, tn tch, a tng ch yu l: st pha do cng, bn st pha, ct ht mn, ct ht nh, o chy, st do mm - na cng, ct ht nh - ht th, bt kt. - Mc nc l cao hn mt t t nhin trung bnh 0,8-1,0m.

2.1.3 a cht:Khu vc kho st cng trnh c mc nc ngm xut hin kh nng, mc nc ngm ch yu ph thuc theo tng ma v lu lng nc triu cng v nc trn cc con sng, su mc nc ngm n nh t -0,50m n 9,00m so vi mt t t nhin.

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----------------------------------------------------------------------------------------------Trn c s kt qu nghin cu thc a, khoan kho st a tng, s liu th nghim cc mu t, tham kho cc ti liu v s liu v cc lnh vc lin quan, cc vt l t nhin v nhn to, a tng khu vc kho st tuyn phn b nh sau: on t Km0+00 Km12+657 (tnh l 3) - Lp 1: St pha mu xm vng, trng thi do cng. Phn b ti LKT0 (Km0+280, b dy lp l 3,00m. Kh nng chu ti ca lp trung bnh. Cng chu ti qui c: R =1,40 kg/cm2. - Lp 2: Ct ht nh, mu xm en, kt cu cht va. Phn b ti LKT6 (Km6+950), LKT8 (Km8+821,36), b dy lp bin i t 4,00m - 6,20m. Kh nng chu ti ca lp kh. Cng chu ti qui c: R =2,00 kg/cm2. - Lp 3: Bn st pha mu xm en, trng thi chy. Phn b ti LKT0 (Km0+280), LKT1 (Km1+317,25), LKT3 (Km3+50), LKT11 (Km10+85,59), LKT12 (Km11+700), b dy lp bin i t 3,00m - 6,20m. Kh nng chu ti ca lp yu. Cng chu ti qui c: R

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