Cong Tac Dam Nen Mat Duong

L THUYL THUYT T M NM NN MN MT VT VMMNG NG NGNG

Vai tr cVai tr ca cng ta cng tc c m nm nnn MMc c ch cch ca cng ta cng tc c m nm nnn QuQu trtrnh nh m nm nnn CCc bic bin phn php nng cao hip nng cao hiu quu qu

m nm nnn KK thuthut t m nm nnn

VAI TR CVAI TR CA CNG TA CNG TC C M NM NNN

m nm nn ln l mmt cng tt cng tc quan trc quan trng ng trong cng nghtrong cng ngh thi cng mthi cng mt vt vmmng ng ngng

ChCht lt lng cng tng cng tc c m nm nn cn c nh nh hhng quyng quyt t nh nh n chn cht lt lng sng sddng cng ca ca cc tc tng lng lp p o o ng. Bng. Bt t cc 1 l1 lp vp vt lit liu gu g, , c xy dc xy dng ng theo nguyn l ntheo nguyn l no tho th chch sau khi sau khi m nm nn trong nn trong ni bi b vvt lit liu mu mi i hhnh thnh thnh nh c cc cu tru trc mc mi i m m bbo co cng ng , , n n nh cnh cn thin thitt

VAI TR CVAI TR CA CNG TA CNG TC C M NM NNN

NNi ci cch khch khc chc ch sau khi sau khi m nm nn n llp mp mt t ng mng mi ci c c mc mt ct cu u trtrc mc mi ti tt hn ct hn cu tru trc ban c ban uu

NgoNgoi ra cng nghi ra cng ngh m nm nn ln l khu khu ttn cng nhn cng nht, kt, k thuthut pht phc tc tp p nhnht trong cng nght trong cng ngh thi cng cthi cng cc c llp mp mt t ng; quyng; quyt t nh nh n tn tc c dy chuydy chuyn vn v ll khu kkhu kt tht thc 1 c 1 ququ trtrnh cng nghnh cng ngh nn phnn phi ti tp p trung chtrung ch o vo v kikim tram tra

MMC C CH CCH CA CNG TA CNG TC C M NM NNN

VVt lit liu lu lm mm mt t ng lng l mmt ht hn n hhp gp gm 3 pha: rm 3 pha: rn, ln, lng vng v khkh. Khi . Khi mmi san ri san ri, thi, th ttch pha khch pha kh trong trong vvt lit liu thu thng rng rt lt ln, vn, vt lit liu ru ri i rrc, cc, cu tru trc lc lng lng lo,o, m nm nn mn mt t ng nhng nhm mm mc c ch lch lm tng m tng chcht ct ca va vt lit liu bu bng cng cch ch y y khng khkhng kh ra ngora ngoi (li (lm gim gim thm thttch pha khch pha kh))


Do vDo vt lit liu cu c chcht lt ln nn:n nn:-- Tng Tng c sc s l lng lin kng lin kt vt v titip p

xxc trong mc trong mt n vt n v thth ttchch-- CCc chc cht lin kt lin kt nht nh phpht huy t huy

c tc tc dc dng, nng, ni bi b vvt lit liu hu hnh nh ththnh nh c cc cu tru trc mc mii

-- LLc dc dnh, gnh, gc ma sc ma st trong, tt trong, tnh nhnh nht t cca va vt lit liu u u tng lnu tng ln

-- TTnh thnh thm him hi, th, thm nm nc cc ca va vt t liliu giu gim im i


VV vvy, ly, lp vp vt lit liu sau khi u sau khi m nm nn n vv bbo do dng cng c c cng ng , , n n nh cnh cng ng d di ti tc dc dng cng ca xe a xe cc vv ccc yc yu tu t khkh quyquyn trong n trong susut qut qu trtrnh phnh phc vc v sau nsau nyy

QUQU TRNH TRNH M NM NNN

1. Qu1. Qu trtrnh nh m nm nnn-- Khi tKhi ti tri trng ng m nm nn tn tc dc dng, ng,

trong vtrong vt lit liu phu pht sinh st sinh sng ng ng ng susut t -- bibin dn dng;ng; chcht ct ca va vt t liliu cu cng tng thng tng th ssng ng ng sung sut t --bibin dn dng lan truyng lan truyn cn cng nhanhng nhanh


-- D Di ti tc dc dng cng ca a p lp lc lan truyc lan truyn n cca ta ti tri trng ng m nm nn, n, trtrc hc ht ct cc c hht khot khong vng v mmng mng mng pha lng pha lng ng bao bbao bc chc chng bng b nnn n n hn hii


-- Do Do ng sung sut tng dt tng dn vn v tti tri trng ng m nm nn trn trng phng phc nn cc nn cu tru trc c cca ma mng mng mng pha lng pha lng dng dn bn b phphhohoi, i, ccng ng mmng mng mng ging gim im i; ; ccc hc ht khot khong dng d ddng dng dch chuych chuyn n n vn v trtr n n nh mnh mi, hi, ht nht nh llp p vvo lo l rrng cn lng cn li gii gia ca cc hc ht lt ln,n, chcht ct ca va vt lit liu tng lnu tng ln


-- Do tDo ti tri trng ng m nm nn ln lp lp li nhii nhiu u lln nn bin nn bin dn dng khng phng khng phc hc hi i trong ltrong lp vp vt lit liu u m nm nn tn tch luch luddn, khng khn, khng kh bb y ra ngoy ra ngoi, si, s llng lin kng lin kt vt v titip xp xc trong 1c trong 1 n vn v thth ttch tng lnch tng ln, gi, gia ca cc hc ht t phpht sinh ct sinh cc tic tip xp xc vc v lin klin kt mt mii


-- Qua giai oQua giai on nn ny, ny, nu tiu tip tp tc c m m nnn n chcht vt vt lit liu tng khng u tng khng ng ng kk nhng v nhng vi ci cu tru trc ng tc ng t, keo , keo tt thth c cng ng vvt lit liu tng nhiu tng nhiu u do mdo mng chng cht lt lng bng b nnn thm sn thm stto io iu kiu kin n lin klin kt bit bin cn cng, ng, tng ma stng ma st vt v llc dc dnhnh


2. S2. Sc cc cn n m nm nnnTrong quTrong qu trtrnh nh m nm nn, trong ln, trong lp vp vt t liliu phu pht sinh st sinh sc cc cn, cn, cn trn tr bibin dn dng ng cca va vt lit liu du di ti tc dc dng cng ca a p lp lc c m m nnn, gn, gi li l ssc cc cn n m nm nn.n.SSc cc cn n m nm nn cn c ba thba thnh phnh phn:n:

-- SSc cc cn cn cu tru trcc-- SSc cc cn nhn nhtt-- SSc cc cn qun qun tn tnhnh


SSc cc cn cn cu tru trc: phc: pht sinh do lin t sinh do lin kkt ct cu tru trc gic gia ca cc pha cc pha c trong trong ththnh phnh phn vn vt lit liu. Nu. N tt ll thuthun n vvi tri tr ss bibin dn dng vng v chcht ct ca a vvt lit liu u TTi tri trng lu qung lu qu nnng hong hoc c chcht t cca va vt lit liu tng du tng dn n u lu lm cho m cho ssc cc cn cn cu tru trc tng theoc tng theo


SSc cc cn nhn nht: Pht: Pht sinh do tt sinh do tnh nhnh nht t cca ma mng mng mng pha lng pha lng bao bng bao bc c ccc hc ht vt v ss mmc vc vng ging gia ca cc c hht khi trt khi trt gy ra.t gy ra.SSc cc cn nhn nht tt t ll thuthun vn vi ti tc c bibin dn dng tng ng tng i vi v nhnht ct ca a vvt lit liu u SSc cc cn nhn nht st s tng khi t tng khi tc c m m nnn qun qu nhanh nhanh, , ccng ng mmng ng mmng pha lng pha lng tng hong tng hoc vc vt lit liu u ssn sn si si sc cc cnhnh


SSc cc cn qun qun tn tnh: sinh ra do vnh: sinh ra do vt t liliu cu c ququn tn tnh, nnh, n tt ll thuthun vn vi i khkhi li lng vng vt lit liu vu v gia tgia tc khi c khi m nm nn.n.SSc cc cn qun qun tn tnh snh s tng n tng nu vu vt t liliu cu c ququn tn tnh lnh ln vn v gia tgia tc khi c khi m nm nn ln lnn


TTm lm li:i:-- Trong quTrong qu trtrnh nh m nm nn, sn, sc cc cn n

m nm nn ngn ngy cy cng tng do ng tng do chcht, t, ggc ma sc ma st, lt, lc dc dnh, tnh, tnh nhnh nht ct ca a vvt lit liu tng lnu tng ln

-- ViVic xc xc c nh mnh mt kt k thuthut t m nm nn n hhp l cp l c thth khkhc phc phc c c cc cc loc loi i ssc cc cn phn pht sinh trong qut sinh trong qu trtrnh nh m nm nn mn mt vt v mmng ng ngng


Cng thCng thc tc tnh snh sc cc cn n m nm nn:n:Xem giXem gio tro trnh T24nh T24


m nm nn chn cht t c vc vt lit liu, u, p lp lc cc ca a phng tiphng tin n m nm nn thn thng ng c sc sc cc cn n m nm nn, cn, c nh v nh vy my mi ti to ra o ra c bic bin n ddng d tng d tch luch lu trong qutrong qu trtrnh nh m nm nn, n, song song p lp lc nc ny phy phi khng i khng c quc qu lln, n, dd phph hohoi ci cu tru trc vc vt lit liu u

SSc cc cn n m nm nn ngn ngy cy cng tng trong ng tng trong ququ trtrnh nh m nm nn, vn, v vvy y p lp lc c m nm nn n ccng phng phi ngi ngy cy cng tng trong qung tng trong qu trtrnh nh m nm nnn

CCC BIC BIN PHN PHP NNG CAO P NNG CAO HIHIU QUU QU M NM NNN

1. C1. Cc yc yu tu t nh hnh hng ng n hin hiu quu qu m m nnn:n:

maxmax; ; -- dung trdung trng lng ln nhn nht vt v dung trdung trng ng cca va vt lit liu sau khi u sau khi m nm nnn

p p p lp lc c m nm nnnEEoo m un m un n hn hi ci ca va vt lit liu u m nm nnn

-- HH ss PoatxngPoatxng

)11()1( .max.

max

o

o

Ep

Ep

ee

1

.212


2. C2. Cc bic bin phn php nng cao hip nng cao hiu quu qu m nm nnn

nng cao hinng cao hiu quu qu m nm nn,n, t t c c chcht t lln nhn nht ct cn:n:

-- Tng Tng p lp lc c m nm nn pn p-- LLm tng m tng (t(tc lc lm gim gim m ))-- LLm gim gim Em Eoo

)11( .maxoEp

e


BiBin phn php tng p tng p lp lc c m nm nn pn pThThc chc cht lt l vivic chc chn lu cn lu c p lp lc cao,c cao, tng dtng dn trong qun trong qu trtrnh nh m nm nn n khkhc c phphc c c sc sc cc cn cn ca va vt lit liu. u. CCc nghin cc nghin cu thu thc nghic nghim cho thm cho thy my mi i loloi phng tii phng tin n m nm nn chn ch cc mmt st s llt lu lt lu ln hin hiu quu qu nhnht t nh. Munh. Mun n chcht tit tip tp tc tngc tng, ph, phi tng ti tng ti tri trng lu ng lu lln. Nn. Ni ci cch khch khc,c, m nm nn mn mt t ng ng ban ban u du dng lu nhng lu nh, s, sau au phphi thay i thay i i loloi lu i lu n lu trung, lu nn lu trung, lu nngng


BiBin phn php tng p tng (gi(gim m ))ThThc chc cht lt l vivic hc hn chn ch vvt lit liu nu n hng hng trong qutrong qu trtrnh nh m nm nnnCC ccc gic gii phi php:p:

-- LLm thm thnh chnh chn, dn, dng ng vva,a, p lp l tr trc c khi san rkhi san ri vi v lu llu ln vn vt lit liu u

-- Lu lLu ln vn vt lit liu tu t ngongoi vi vo trong, to trong, t ththp p n caon cao

-- TTo o c hic hiu u ng ng EE trong qutrong qu trtrnh lu nh lu lln ln lp vp vt lit liu u

-- Lu lLu ln vn vt lit liu u m tm tt nht nhtt


BiBin phn php gip gim Em Eoo::ThThc chc cht lt l vivic tc tm thm thi ii iu chu chnh cnh cu u trtrc vc vt lit liu trong quu trong qu trtrnh nh m nm nn, ln, lm m gigim sm sc cc cn n m nm nnnCC ccc gic gii phi php:p:

-- Lu lLu ln cn cc loc loi vi vt lit liu gia cu gia c nhnha khi a khi nhinhit t caocao

-- Lu lLu ln cn cc loc loi vi vt lit liu cu cp php phi,i, t gia ct gia c m tm tt nht nhtt

-- TTi ni nc gic gim ma sm ma st khi lu mt khi lu mt t ng ng dm dm

-- m bm bo co cp php phi vi vt lit liu chu cht cht ch


-- XXc c nh phng phnh phng php p m nm nn, tn, ti i trtrng ng m nm nn, vn, vn tn tc c m nm nn phn phhhp trong cp trong cc giai oc giai on n m nm nn, vn, vi i mmi loi loi vi vt lit liu mu mt t ngng

-- SS ddng cng cc chc cht pht ph giagia

KK THUTHUT T M NM NNN

1. C1. Cc phng phc phng php p m nm nn mn mt t ng ng

-- Phng phPhng php lu lp lu lnn-- Phng phPhng php p mm-- Phng phPhng php chp chn n ng ng -- CCc phng phc phng php kp kt ht hp:p: mm--chchn n

ng vng v lulu--chchn n ngng

KK THUTHUT T M NM NNN2. Ch2. Chn phng phn phng php p m nm nnn-- Phng phPhng php lu lp lu ln: sn: s ddng phng ph bibin n

nhnht, ct, c thth p dp dng cho mng cho mi loi loi vi vt lit liu u -- Phng phPhng php p m: dm: dng ng phphm vi m vi

phng tiphng tin lu ln lu ln khng thn khng th hohot t ng ng cc

-- Phng phPhng php chp chn n ng vng v mm--chchn n ng: ng: p dp dng cho mng cho mi loi loi vi vt lit liu cu c ttnh nh xxc bic binn

-- Phng phPhng php lup lu--chchn n ng: ng: p dp dng cho ng cho ccc loc loi vi vt lit liu ru ri, i, t dt dnhnh


3. Ch3. Chn phng tin phng tin lu ln lu lnn-- Lu bLu bnh cnh cng: cng: c thth m nm nn mn mi i

loloi vi vt lit liu; hiu; hiu quu qu nhnht khi lu lt khi lu ln n ccc loc loi vi vt lit liu cu c ssc cc cn n m nm nn n lln nhng sn nhng sc cc cn nhn nht nht nh ( ( dmdm, , dm th dm thm nhm nhp khi cha p khi cha tti nhi nha)a)BuBuc phc phi si s ddng khi lu lng khi lu ln s bn s bvv lu llu ln hon hon thin thin ln lp vp vt lit liu u tto pho phngng


-- Lu bLu bnh hinh hi: Hi: Hiu quu qu nhnht khi lu lt khi lu ln n ccc loc loi vi vt lit liu cu c ssc cc cn n m nm nn n nhnh nhng s nhng sc cc cn nhn nht lt ln (cn (cc loc loi i mmt t ng cng c ttnh dnh dnh nh BTNnh nh BTN, c, cp p phphi,i, t gia ct gia c vi, vi, ))


-- Lu chLu chn n ng (lu rung): ng (lu rung): p dp dng cho ng cho ccc loc loi vi vt lit liu ru ri, i, t dt dnh, vnh, vt lit liu u cc ttnh xnh xc bic bin (cn (cp php phi i dm dm, , ccp php phi i dm gia c dm gia c xi mng xi mng, c, ct t gia cgia c xi mng xi mng,,))


4. Ch4. Chn tn ti tri trng lu lng lu lnn-- Nguyn tNguyn tc:c: + + lln n khkhc phc phc c c sc sc cc cn n

m nm nnn+ Khng qu+ Khng qu lln n trtrnh phnh ph hohoi i ccc bc b llp vp vt lit liu, khng lu, khng lm h m h hhng lng lp mp mng hong hoc nc nn n tt


-- Giai oGiai on lu ln lu ln s bn s b: d: dng lu nhng lu nhhohoc lu trung bc lu trung bnh cnh cngng

-- Giai oGiai on lu ln lu ln chn cht: dt: dng lu nng lu nng ng cc tti tri trng tng dng tng dnn

-- Giai oGiai on lu ln lu ln hon hon thin thin: dn: dng lu ng lu nnng bng bnh cnh cngng


5. V5. Vn tn tc lu lc lu ln (km/h):n (km/h):-- Nguyn tNguyn tc:c: + + chchm m vvt lit liu biu bin dn dng vng v

chcht lt li, khng li, khng lm tng sm tng sc cc cn n m nm nn, khng ln, khng lm vm vt lit liu bu b nnt t nn, tr, tri tri trt, t, lln sn sngng

+ + lln n cc nng su nng sut lu lt lu ln caon cao

KK THUTHUT T M NM NNN-- Giai o Giai on lu ln lu ln s bn s b::VVn lin liu cn ru cn ri ri rc, nn lu vc, nn lu vn tn tc chc chm m

(V(Vmaxmax = 1,5 = 1,5 2 2 km/h)km/h)-- Giai o Giai on lu ln lu ln chn cht: t: tng dtng dn tn tc c lu lu

lln do n do chcht vt vt lit liu tng lnu tng ln::+ Lu b+ Lu bnh cnh cng: V=2ng: V=23 km/h3 km/h+ Lu rung: V=2+ Lu rung: V=23 km/h3 km/h+ Lu b+ Lu bnh lnh lp: V=3p: V=36(10) km/h6(10) km/hCCc lc lt cut cui gii gim vm vn tn tc lu do sc lu do sc cc cn n m nm nn rn rt lt lnn


-- Giai o Giai on lu ln lu ln hon hon thin thin: lu ln: lu ln n vvn tn tc chc chm (Vm (Vmaxmax = 1,75= 1,752,25 2,25 km/h)km/h)


6.Chi6.Chiu du dy ly lp vp vt lit liu u m nm nn (cm)n (cm)-- TuTu thuthuc vc vo to tng long loi mi mt t ng, ng,

loloi phng tii phng tin & tn & ti tri trng lu lng lu ln, n, trtrng thng thi vi vt l ct l ca va vt lit liu u m m nnn mn m chichiu du dy ly lp vp vt lit liu u m m nnn sn s khkhc nhauc nhau

-- HHhqhq khng nhkhng nh hn chi hn chiu du dy ty ti i thithiu Hu Hminmin m bm bo lo lp vp vt lit liu u khng bkhng b phph hohoi ci cc bc b & khng b& khng btrtri tri trt, t, lln sn sng, lng, lp mp mng hong hoc c nnn n t khng bt khng b h h h hngng


-- HHhqhq khng lkhng ln hn chin hn chiu du dy ty ti a i a HHmaxmax m bm bo lo lp vp vt lit liu u t t chcht t ng ng u trong suu trong sut chit chiu du dy y llp vp vt lit liu u m nm nnn

-- ChiChiu du dy y m nm nn hin hiu quu qu mmi loi loi i vvt lit liu mu mt t ng lng l khkhc nhau nn c nhau nn phphi xi xc c nh chinh chiu du dy ny ny thng y thng qua oqua on n m nm nn thn th nghinghimm


7. S7. S l lt t m nm nn yu cn yu cu (u (lltt//iim):m):-- TuTu theo ctheo cc giai oc giai on lu ln lu ln, lon, loi vi vt t

liliu mu mt t ng, ching, chiu du dy ly lp vp vt lit liu u m nm nn, trn, trng thng thi vi vt l ct l ca va vt lit liu u mm ss l lt t m nm nn yu cn yu cu su s khkhc c nhaunhau

-- Giai oGiai on lu ln lu ln s bn s b: s: s l lt lu lt lu ln n yu cyu cu thu thng tng t 4 4--8 8 lltt//iim tum tutheo lotheo loi vi vt lit liu vu v ttnh hnh hnh thnh thi tii titt


-- Giai oGiai on lu ln lu ln chn cht: st: s l lt lu lt lu ln yu n yu ccu phu phi xi xc c nh thng qua onh thng qua on n m m nnn thn th nghinghim.m.

Lu Lu : lu rung khng bao gi: lu rung khng bao gi lu qulu qu 10 10 lltt//iimmNNu biu bit it iu chu chnh trnh trng thng thi vi vt l ct l ca a vvt lit liu hu hp l p l (( m, nhim, nhit t , , ) c) c ththgigim m c sc s l lt lu lt lu ln chn chtt

-- Giai o Giai on lu ln lu ln hon hon thin thin: sn: s l lt lu lt lu ln n yu cyu cu thu thng tng t 2 2--4 4 lltt//iimm


8.Chi8.Chiu du di oi on n m nm nn (m):n (m):-- Nguyn tNguyn tc:c: + + lln n phng ti phng tin n m nm nn n t pht phi i

i si s, th, thc hic hin s n s m nm nn thun thun ln li,i, m bm bo nng suo nng sut lu lt lu lnn

+ + nhnh lu llu ln vn vt lit liu u trtrng thng thi i vvt l tt l tt nht nht vt v m, nhim, nhit t

+ + m bm bo pho phi hi hp nhp nhp nhp nhng cng cc cng c cng ttc khc khc trong cng nghc trong cng ngh thi cng thi cng


XXc c nh chinh chiu du di oi on n m nm nn:n:-- XXc c nh lonh loi vi vt lit liu u m nm nn: cn: c hohoc c

khng khkhng khng chng ch ththi gian lu li gian lu lnn-- c lc lng nng sung nng sut ct ca ta t hhp p m nm nn n

theo stheo s l lng mng my lu hiy lu hin cn c cca n va n vhohoc theo yu cc theo yu cu cu ca tia tin n thi cng thi cng

-- XXc c nh chinh chiu du di oi on n m nm nn thn thnghinghimm

-- Thi cng oThi cng on n m nm nn thn th nghinghim m chchnh xnh xc hoc ho cng nghcng ngh m nm nnn


9. 9. S S m nm nnn-- MMc c ch:ch:

+ Thi+ Thit kt k s s lu lu m bm bo co cc c phng tiphng tin lu ln lu ln thn thc hic hin cn cc thao tc thao tc c thuthun ln li,i, t nng sut nng sut vt v chcht lt lng lu ng lu lln caon cao

+ + ttnh tonh ton cn cc thng sc thng s lu llu ln, chn, chnh nh xxc hc ha cng ta cng tc tc tnh tonh ton nng sun nng sut lut lu

+ + m bm bo an too an ton trong qun trong qu trtrnh lu nh lu llnn


-- Yu cYu cu:u: + + n gin gin, r rn, r rng, dng, d nnm bm bt, dt, d

ththc hic hin, an ton, an tonn + + m bm bo lo lp vp vt lit liu u m nm nn n t t

bbng phng phng,ng, mui luymui luynn + + m bm bo so s l lt t m nm nn sau 1 n sau 1

chu kchu k lu lu ng ng u trn suu trn sut chit chiu u rrng ng m nm nn, phn, ph hhp vp vi si s l lt t m nm nn yu cn yu cuu

KK THUTHUT T M NM NNN-- Nguyn tNguyn tc thic thit kt k s s lu:lu:+ Lu l+ Lu ln tn t ththp p n cao n cao m bm bo o mui luymui luyn thin thit kt k+ Lu l+ Lu ln tn t ngongoi vi vo trong o trong hhn chn ch vvt t liliu nu n hng, chng, ci thii thin tn tc c , , tng tng chcht & git & gim cng lu lm cng lu lnn+ V+ Vt lu t lu u tin cu tin cch vai ch vai ng tng ti thii thiu u 0,5m0,5m m bm bo an too an tonn+ C+ Cc vc vt lu pht lu phi chi chng ln nhau tng ln nhau ti thii thiu u 1515--20 cm20 cm mmt t ng bng bng phng phngng


+ + m nm nn ln lp vp vt lit liu cu c ccng cao ng cao ll ng nn lng nn ln ra ngon ra ngoi li l tng ctng cng ng chcht cho lt cho l ng chng chtitip gip gip vp vi mi mt t ng ng

+ + m nm nn vn vt lit liu cu c ththnh chnh chn,n, vva hoa hoc c p lp l tr trc (cc (c cao cao lln hn n hn nh lnh lp vp vt lit liu) phu) phi ci cch ch mmp tp ti thii thiu 1u 10cm0cm khng phkhng phhohoi thi thnh chnh chn hon hoc lc l tt


TrTrnh tnh t thithit kt k s s lu:lu:-- Thu thThu thp cp cc sc s liliu thiu thit kt k::

+ Chi+ Chiu ru rng lu lng lu ln Bn B+ S+ S l lt lu lt lu ln yu cn yu cu nu nycyc+ S+ S trtrc chc ch ng cng ca ma my luy lu+ Chi+ Chiu ru rng vng vt t m cm ca ma my lu by lu b+ Chi+ Chiu ru rng vng vt tt tc dc dng cng ca ma my y lulu


-- XXc c nh snh s l lt t m nm nn sau 1 chu kn sau 1 chu k (n)(n)+ n ph+ n phi li l c sc s cca na nycyc+ Ph+ Phi li l bbi si s cca sa s lln tn tc dc dng cng ca a mmt lt lt t m nm nnn+ Ph+ Phi li l tti thii thiu cu c thth s s lu n lu n giginn+ Ph+ Phi i m bm bo o cc thth thithit kt k ss l lt t m nm nn sau 1 chu kn sau 1 chu k lu lu ng ng u trn u trn toton bn b chichiu ru rng mng mt t ng ng


-- CCc phng c phng n thin thit kt k s s lu trn lu trn mmt ct ct ngang:t ngang:DDa va vo so s liliu thiu thit kt k vv n x n xc c nh, xnh, xp cp cc vc vt tt tc dc dng cng ca ba bnh nh lu trn mlu trn mt ct ct ngang tht ngang thnh cnh cc c phng phng n s n s lu tholu tho mn cmn cc c nguyn tnguyn tc thic thit kt k nu nu. V. V bibiu u ss l lt lu lt lu ln tn tc dc dng trn mng trn mt t iim sau mm sau mt chu kt chu k lulu


-- So sSo snh cnh cc phng c phng n, chn, chn phng n phng n tn ti ui u::So sSo snh cnh cc phng c phng n thin thit kt k s s lu, chlu, chn phng n phng n thon tho mn tmn tt t nhnht ct cc mc mc c ch vch v yu cyu cu khi u khi thithit kt k s s lulu


10.T10.T chchc cng tc cng tc c m nm nnn-- MMy lu ly lu l loloi mi my hoy hot t ng theo s ng theo s

, m, mi mi my cy cn cn c mmt khng gian t khng gian nhnht t nh nh hohot t ng bng bnh thnh thng ng vv an toan ton, phn, pht huy t huy c nng c nng susut, t, do do khi tkhi t chchc lu lc lu ln khng n khng nn bnn b trtr ququ nhinhiu lu trn mu lu trn mt dit din n thi cng hthi cng hpp


-- thi cng hothi cng hon thn thnh mnh mt lt lp mp mt t ng phng phi thi thc hic hin rn rt nhit nhiu thao u thao ttc khc khc nhau, vc nhau, v vvy phy phi phi phi hi hp p ttt cng tt cng tc c m nm nn vn vi ti tt ct c ccc c khu cng tkhu cng tc khc khc trong cng nghc trong cng ngh thi cng nhthi cng nh: v: vn chuyn chuyn, n, tti i m, m, tti nhi nha da dnh bnh bm, san rm, san ri, bi, b phph..


-- Cng tCng tc c m nm nn ln l khu quan khu quan trtrng nhng nht trong qut trong qu trtrnh thi cng nh thi cng ccc lc lp mp mt t ng, nng, n c xem lc xem lkhu cng tkhu cng tc chc chnh, mnh, my lu y lu c c xem lxem l ccc mc my chy chnhnh

-- Trong cng tTrong cng tc c m nm nn, n, giai ogiai on n m nm nn chn cht lt l ttn cng nhn cng nht, t, quyquyt t nh nng sunh nng sut ct ca ta t hhp lu p lu lln nn mn nn my lu ny lu nng lu lng lu ln chn cht lt li i c xem lc xem l mmy chy chnhnh


-- phphi hi hp tp tt ct cc mc my my mc, sc, sddng mng my my mc hic hiu quu qu, n, nng cao ng cao c hc h ss ss ddng mng my,y, u tin u tin xxc c nh nng sunh nng sut ct ca ta t hhp lu lp lu ln n chcht cho pht cho ph hhp vp vi ti tc c dy dy chuychuyn vn v kk thuthut thi cng,t thi cng, sau sau chchn nng sun nng sut ct ca ta t hhp lu lp lu ln s n s bb, lu l, lu ln hon hon thin thin vn v ccc tc t hhp p mmy phy ph khkhc cho phc cho ph hhpp


11.11. o on n m nm nn thn th nghinghim:m: Tr Trc khi thi cng c khi thi cng i tri tr bbt ct c mmt t

llp mp mt t ng nng no o u phu phi thi cng i thi cng oon n m nm nn thn th nghinghimm


MMc c ch:ch:-- NhNhm chm chnh xnh xc hoc ho cng nghcng ngh m nm nn n

llp mp mt t ng nng ni ring vi ring v toton bn b cng cng nghngh thi cng lthi cng lp mp mt t ng nng ni chungi chung

-- NhNhm phm pht hit hin cn cc chc ch sai ssai st, t, cha hcha hp p l trong bl trong bn vn v thi cng mthi cng mt t ng ng kkp p ththi ii iu chu chnh, trnh, trnh cnh cc lng phc lng ph lln vn vvvt lit liu, nhn lu, nhn lc vc v mmy my mc,c, m bm bo o dy chuydy chuyn thi cng mn thi cng mt t ng nhng nhp p nhnhng,ng, ng ting tin n , , t cht cht lt lng ng


Quy m oQuy m on thn th nghinghim:m:-- PhPhi theo quy i theo quy nh vnh v kkch thch thc hoc hoc c

khkhi li lng tng ti thii thiu trong cu trong cc quy trc quy trnh thi nh thi cng vcng v nghinghim thu tm thu tng lng lp mp mt t ng ng

-- Nn cNn c chichiu ru rng, ching, chiu du di bi bng ng ng 1 ng 1 ca thi cng xca thi cng xc c nh trong BVTC mnh trong BVTC mt t ng (bng (bng ng ng 1ng 1 o on dy chuyn dy chuyn)n)

-- Chia oChia on thn th nghinghim thm thnh 5nh 5 o on nhn nhcc ss l lt t m nm nn chn cht kht khc nhau (mc nhau (mi i oon nn cn nn c chichiu du di ti ti thii thiu 20m)u 20m)


CCc hc h s c s cn thin thit:t:-- ThuyThuyt minh vt minh v kk thuthut thi cng ct thi cng ca a

ccc loc loi mi my my mc, c, quy quy nh knh k thuthut t ccc khu cng tc khu cng tc trong cng nghc trong cng nghthi cng, sthi cng, s phphi ki kt ht hp gip gia ca cc c loloi mi my my mc, thic, thit bt b, nhn l, nhn lc c trong cng nghtrong cng ngh thi cng thi cng


-- CCc kc kt qut qu thth nghinghim vm v chcht,t, m cm ca la lp vp vt lit liu mu mt t ng ng

-- BBn vn v titin n thi cng chi tithi cng chi tit dy t dy chuychuyn mn mt t ng theo ging theo gi

-- BBn vn v s s hohot t ng cng ca ma my y mmc, thic, thit bt b trong dy chuytrong dy chuynn

KK THUTHUT T M NM NNN TrTrnh tnh t ththc hic hin:n:-- ChuChun bn b cng tr cng trng:ng:

+ Ki+ Kim tra vim tra vic thi cng hoc thi cng hon thn thnh nnh nn n ng hong hoc lc lp mp mngng+ Chu+ Chun bn b ccc loc loi xe mi xe my, nhn ly, nhn lc vc vvvt lit liu cu cn thin thitt+ Chu+ Chun bn b ccc thic thit bt b thth nghinghim, kim, kim m tra chtra cht lt lng thi cng hing thi cng hin trn trngng+ Chu+ Chun bn b ccc bin bc bin bn ghi chn ghi chp, nghip, nghim m thu hithu hin trn trngng


-- Thi cng oThi cng on thn th nghinghim:m:+ V+ Vn chuyn chuyn vn vt lit liu u n on on thn thnghinghimm+ X+ X l bl b mmt nt nn hon hoc mc mng ng ngng+ San, r+ San, ri vi vt lit liu cu c chichiu du dy by bng ng ng ching chiu du dy cha ly cha ln n p xp xc c nh (Hnh (Hrr))+ Lu l+ Lu ln s bn s b ccc oc on theo s n theo s vv kk thuthut lu lt lu ln xn xc c nhnh


+ Lu l+ Lu ln chn cht t ccc oc on n ng kng k thuthut vt vi i ss l lt lu lt lu ln dn d kikin nn n11, n, n22, n, n33, n, n44, n, n55 (thng (thng ththng nng ni+1i+1=n=nii+n)+n)+ Ti+ Tip tp tc lu lc lu ln hon hon thin thin n ccc oc on n theo s theo s vv kk thuthut lu lt lu ln bin bitt+ Ki+ Kim tra m tra chcht, chit, chiu du dy sau khi lu y sau khi lu lln cn ca la lp vp vt lit liu mu mt t ng ng ccc oc onn+ Ghi ch+ Ghi chp top ton bn b ququ trtrnh thi cng vnh thi cng vso sso snh vnh vi ci cc BVTC mc BVTC mt t ng thing thit t kk


TTnh tonh ton vn v xx l cl cc kc kt qut qu::-- TTnh cnh cc hc h ss lln n p (hp (h ss rri) li) lp vp vt t

liliu mu mt t ng ng ccc oc on Kn Kriri=H=Hrr/h/hii-- TTnh tonh ton hn h ss m nm nn n (( chcht) ct) ca la lp p

vvt lit liu u ccc oc on Kn Kii==ii//cmaxcmax-- VV ccc bic biu u tng quan gi tng quan gia sa s lln n

m nm nn chn cht nt nii vvi Ki Kriri; v; v KKii xxc c nh nh chchnh xnh xc hc h ss rri vi v ss l lt t m nm nn n chcht yu ct yu cu (nu (nycyc) theo K) theo Kycyc


12. Ki12. Kim tra chm tra cht lt lng ng m nm nn:n:-- CCc giai oc giai on kin kim tra:m tra:

+ Ki+ Kim tra trong qum tra trong qu trtrnh thi cng nh thi cng + Ki+ Kim tra sau khi thi cng m tra sau khi thi cng

KK THUTHUT T M NM NNN CCc nc ni dung kii dung kim tra:m tra:-- Trong quTrong qu trtrnh thi cng:nh thi cng:

+ Ki+ Kim tra sm tra s l lng, chng, chng long loi, ti, ti tri trng lung lu+ Ki+ Kim tra m tra m, nhim, nhit t , chi, chiu du dy ry ri ci ca a llp vp vt lit liu tru trc khi c khi m nm nnn+ Ki+ Kim tra vim tra vic thc thc hic hin s n s lu, tlu, tc c lulu+ Ki+ Kim tra tm tra tnh trnh trng lng lp vp vt lit liu trong quu trong qutrtrnh nh m nm nn n cc ccc ic iu chu chnh phnh ph hhpp+ Ki+ Kim tra chm tra cht lt lng cng tng cng tc bc b phph, , bbng phng phng,ng, ddc ngang lc ngang lp vp vt lit liu trong u trong ququ trtrnh nh m nm nnn


-- Sau khi thi cng:Sau khi thi cng:+ Ki+ Kim tra m tra bbng phng phng,ng, ddc c ngang, caongang, cao llp vp vt lit liu sau khi u sau khi m nm nnn+ Ki+ Kim tra chim tra chiu du dy cy ca la lp vp vt lit liu u sau khi sau khi m nm nnn+ Ki+ Kim tra m tra chcht lt lp vp vt lit liu, so u, so ssnh vnh vi i chcht yu ct yu cuu


CCc phng phc phng php kip kim tra m tra chcht:t:-- Phng phPhng php dao vng:p dao vng:

p dp dng cho mng cho mt t ng cng ct gia ct gia c xi xi mng vmng va lu la lu ln xongn xong


-- Phng phPhng php rp rt ct ct:t:p dp dng cho mng cho mt t ng cng cp php phi i thin nhin, cthin nhin, cp php phi i dm dm, c, cp p phphi i dm gia c dm gia c xi mng xi mng, , t gia t gia cc vi vvi va lu la lu ln xongn xong


-- Phng phPhng php dp dng thing thit bt b ng vng vphphng xng x::p dp dng cho mng cho mi loi loi mi mt t ng ng ((c c bibit lt l mmt t ng BTN vng BTN va lu la lu ln n xong)xong)


-- Phng phPhng php khoan mp khoan mu xu xc c nh nh dung trdung trng:ng:p dp dng cho cng cho cc loc loi mi mt t ng: B ng: B tng nhtng nha, ca, ct gia ct gia c xi mng xi mng, c, cp p phphi i dm gia c dm gia c xi mng xi mng, , t gia t gia cc vi h vi hnh thnh thnh cnh cng ng


13. 13. Nng suNng sut t m nm nn:n:TT cc

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