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Tnh ton cng trnh tng tc vi nn t bng phn mm Plaxis Mng b

Bi tp

MNG B C VCH TNG HM

Bc 1:Thit lp m hnhVo File General Settings

Bc 2:Thit lp cc mt phng lm vic

Vo GeometryWorkplanes

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Tnh ton cng trnh tng tc vi nn t bng phn mm Plaxis Mng b

Bc 3:V mt bng mng 20m*20mVo Geometry Geometry Lines

Bc 4:Khai bo h khoanVo Geometry Borehole. Kch chut tri vo mt v tr bt k trn khu t to Borehole.H khoan cu to gm 2 lp t, mc nc ngm cao -5m.

Lp 1: St do cng

GV: O NGUYN V 2

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Tnh ton cng trnh tng tc vi nn t bng phn mm Plaxis Mng b

Lp 2: Ct cht

Sau khi khai bo xong c trng vt liu cc lp t, tin hnh gn cc c trng ny voBorehole.

Bc 5:Khai bo c trng vt liu mng (code -3.00)

Kch doubles vo Borehole trn khu t Borehole chn

Bc 6:Khai bo c trng vt liu vch (code 0.00)

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Tnh ton cng trnh tng tc vi nn t bng phn mm Plaxis Mng b

Dng cc biu tng v mng, vch v gn c trng vt liu, ti trng.

Bc 7:Chia liVo Mesh generate 2D mesh UpdateVo Mesh generate 3D mesh Update

Bc 8:Chn Calculation Yes

Phase 1: o t h mngWorkphase, y = 0.00. Kch chut vo v tr cn o t

GV: O NGUYN V 4

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Tnh ton cng trnh tng tc vi nn t bng phn mm Plaxis Mng b

Phase 2: Thi cng mngWorkphase, y = -3.00. Kch chut vo v tr mng

Phase 3: Thi cng vchWorkphase, y = 0.00. Kch chut vo v tr vch

Phase 4: Tc dng ti trngWorkphase, y = -3.00. Kch chut vo v tr t ti

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Tnh ton cng trnh tng tc vi nn t bng phn mm Plaxis Mng b

Bc 9:Chn Select points for curves,Bc 10:Chn calculate gii bi ton

GV: O NGUYN V 6