隧道开挖ansys模拟分析 - 图文(4)

MSHAPE,0,2D MSHKEY,0 !*

FLST,5,2,5,ORDE,2 FITEM,5,9 FITEM,5,14 CM,_Y,AREA ASEL, , , ,P51X CM,_Y1,AREA

CHKMSH,'AREA' CMSEL,S,_Y !*

AMESH,_Y1 !*

CMDELE,_Y CMDELE,_Y1 CMDELE,_Y2 !*

！划分加固区

mat,2 !赋予围岩单元属性 type,2

FLST,5,23,4,ORDE,23 FITEM,5,42 FITEM,5,79 FITEM,5,85 FITEM,5,88 FITEM,5,91 FITEM,5,94 FITEM,5,98 FITEM,5,106 FITEM,5,112 FITEM,5,118 FITEM,5,124 FITEM,5,130 FITEM,5,134 FITEM,5,144 FITEM,5,150 FITEM,5,156 FITEM,5,162 FITEM,5,168 FITEM,5,174 FITEM,5,180 FITEM,5,184 FITEM,5,192 FITEM,5,207 CM,_Y,LINE LSEL, , , ,P51X CM,_Y1,LINE CMSEL,,_Y !*

LESIZE,_Y1, , ,3, , , , ,1 !*

FLST,5,60,4,ORDE,59 FITEM,5,11 FITEM,5,26 FITEM,5,36 FITEM,5,-38 FITEM,5,40 FITEM,5,-41 FITEM,5,43 FITEM,5,49 FITEM,5,55 FITEM,5,68 FITEM,5,72 FITEM,5,75 FITEM,5,78 FITEM,5,80 FITEM,5,84 FITEM,5,87 FITEM,5,90 FITEM,5,95 FITEM,5,-96 FITEM,5,100 FITEM,5,104 FITEM,5,107 FITEM,5,110 FITEM,5,113 FITEM,5,116 FITEM,5,119 FITEM,5,122 FITEM,5,125 FITEM,5,128 FITEM,5,131 FITEM,5,137 FITEM,5,141 FITEM,5,143 FITEM,5,146

FITEM,5,149 FITEM,5,152 FITEM,5,155 FITEM,5,158 FITEM,5,161 FITEM,5,164 FITEM,5,167 FITEM,5,170 FITEM,5,173 FITEM,5,176 FITEM,5,178 FITEM,5,181 FITEM,5,-182 FITEM,5,194 FITEM,5,197 FITEM,5,200 FITEM,5,202 FITEM,5,206 FITEM,5,209 FITEM,5,212 FITEM,5,214 FITEM,5,217 FITEM,5,-218 FITEM,5,227 FITEM,5,229 CM,_Y,LINE LSEL, , , ,P51X CM,_Y1,LINE CMSEL,,_Y !*

LESIZE,_Y1, , ,1, , , , ,1 !*

FLST,5,60,5,ORDE,4 FITEM,5,15 FITEM,5,-72 FITEM,5,75 FITEM,5,-76 CM,_Y,AREA ASEL, , , ,P51X CM,_Y1,AREA

CHKMSH,'AREA' CMSEL,S,_Y !*

AMESH,_Y1 !*

CMDELE,_Y CMDELE,_Y1 CMDELE,_Y2 !*

！划分周围

mat,2 !赋予围岩单元属性 type,2

FLST,5,4,4,ORDE,2 FITEM,5,58 FITEM,5,-61 CM,_Y,LINE LSEL, , , ,P51X CM,_Y1,LINE CMSEL,,_Y !*

LESIZE,_Y1, , ,8, , , , ,1 !*

FLST,5,4,4,ORDE,4 FITEM,5,56 FITEM,5,-57 FITEM,5,62 FITEM,5,-63 CM,_Y,LINE LSEL, , , ,P51X CM,_Y1,LINE CMSEL,,_Y !*

LESIZE,_Y1, , ,7, , , , ,1 !*

FLST,5,8,4,ORDE,6 FITEM,5,28 FITEM,5,-31 FITEM,5,65 FITEM,5,70 FITEM,5,82 FITEM,5,92 CM,_Y,LINE LSEL, , , ,P51X CM,_Y1,LINE CMSEL,,_Y !*

LESIZE,_Y1, , ,3, , , , ,1 !*

amap,10,55,157,26,67 amap,11,55,157,44,70 amap,12,70,44,96,57 amap,13,96,57,68,17 amap,73,155,62,68,17 amap,74,155,62,69,22 amap,77,98,63,69,22 amap,78,98,63,67,26 FLST,5,2,4,ORDE,2 FITEM,5,17 FITEM,5,20 CM,_Y,LINE LSEL, , , ,P51X CM,_Y1,LINE CMSEL,,_Y !*

LESIZE,_Y1, , ,14, , , , ,1 !*

FLST,5,4,4,ORDE,4 FITEM,5,6 FITEM,5,-7 FITEM,5,14 FITEM,5,-15 CM,_Y,LINE LSEL, , , ,P51X CM,_Y1,LINE CMSEL,,_Y !*

LESIZE,_Y1, , ,16, , , , ,1 !*

amap,5,56,55,57,58 amap,8,62,63,66,65 FLST,5,3,4,ORDE,3 FITEM,5,8 FITEM,5,-9 FITEM,5,13 CM,_Y,LINE LSEL, , , ,P51X CM,_Y1,LINE CMSEL,,_Y !*

LESIZE,_Y1, , ,16, , , , ,1 !*

FLST,5,4,4,ORDE,4 FITEM,5,18 FITEM,5,-19 FITEM,5,22 FITEM,5,25 CM,_Y,LINE LSEL, , , ,P51X CM,_Y1,LINE CMSEL,,_Y !*

LESIZE,_Y1, , ,15, , , , ,1 !*

amap,3,58,57,59,60 amap,6,62,57,59,61 amap,4,62,65,64,61 FLST,5,4,4,ORDE,4 FITEM,5,16 FITEM,5,21 FITEM,5,24 FITEM,5,27 CM,_Y,LINE LSEL, , , ,P51X CM,_Y1,LINE CMSEL,,_Y !*

LESIZE,_Y1, , ,15, , , , ,1 !*

FLST,5,2,4,ORDE,2 FITEM,5,5 FITEM,5,12 CM,_Y,LINE LSEL, , , ,P51X CM,_Y1,LINE CMSEL,,_Y !*

LESIZE,_Y1, , ,16, , , , ,1 !*

FLST,5,2,4,ORDE,2 FITEM,5,1 FITEM,5,-2 CM,_Y,LINE LSEL, , , ,P51X CM,_Y1,LINE CMSEL,,_Y !*

LESIZE,_Y1, , ,8, , , , ,1 !* amap,1,53,54,55,56 amap,7,54,55,63,49 amap,2,51,66,63,49 !（3）施加约束和荷载 /SOLU !施加约束 csys,0 nsel,s,loc,x,-46.4587 !选择X=-52线上所有节点

nsel,a,loc,x,45.6987 !选择X=52线上所有节点

d,all,ux !对所选择节点约束X方向位移

allsel nsel,s,loc,y,-25.525 !选择Y=-65线上所有节点 d,all,uy !对所选择节点约束Y方向位移 !施加重力加速度

acel,,10 NSUBST,5,100,1 !设置求解步 NROPT,FULL, , !采用全牛顿—拉普森法进行求解 FINISH /PREP7 esel,s,mat,,1,4,3 !选择材料号为1、4的单元

ekill,all !杀死所选择的单元 esel,all esel,s,live !选择活单元 nsle,s !选择节点 nsel,inve !反选择当前节点

d,all,all !约束所选择节点、自由度

allsel /SOLU !进入求解器

/STATUS,SOLU ALLS !选择所有内容

SOLVE !求解计算 /POST1 !进入后处理器

PLDISP,1 !显示变形情况

PLNSOL,U,X,0,1 绘制水平方向位移云图

PLNSOL,U,Y,0,1 !绘制竖直方向位移云图 PLNSOL,S,X,0,1 !绘制水平方向应力云图 PLNSOL,S,Y,0,1 !绘制竖直方向应力云图 PLNSOL,S,1,0,1 !绘制第一主应力云图 PLNSOL,S,3,0,1 !绘制第三主应力云图 ESEL,S,,,411,428 !选择单元 ESEL,A,,,429,430 !补选单元 ESEL,A,,,608,626,6 ESEL,A,,,621,627,6

ESEL,A,,,450,453,3 ESEL,A,,,462,474,6

ESEL,A,,,483,531,6 ESEL,A,,,539,593,6 ESEL,A,,,596 ESEL,A,,,605 NFORCE,ALL,ALL !提取所选单元的节点力

FINISH !进行隧道上台阶开挖 /SOLU !进入求解器 ANTYPE,,REST,1 !重新启动求解器 esel,s,mat,,1,4,3 !选择材料号为1、4的单元 ekill,all !杀死所选择的单元

esel,all ESEL,S,,,172,350 !选择上台阶开挖土体单元 EKILL,ALL !对所选单元赋予“死属性” ESEL,S,LIVE !选择具“生属性”的单元

F,1,FX,114600 F,2,FX,107640

F,3,FX,-62520 F,9,FX,-113580

F,10,FX,-120180 F,11,FX,120120

F,12,FX,99420 F,13,FX,90300

F,14,FX,80460 F,19,FX,-4903.8 F,20,FX,-12900 F,21,FX,58818 F,28,FX,70620 F,29,FX,61380 F,31,FX,52530 F,33,FX,43884 F,35,FX,35442 F,37,FX,27174 F,39,FX,19074 F,41,FX,11034 F,42,FX,3046.8 F,44,FX,-21030 F,46,FX,-29352 F,48,FX,-37890 F,50,FX,-46680 F,52,FX,-55734 F,53,FX,-75720 F,54,FX,-65340 F,56,FX,-86280 F,57,FX,-96300 F,58,FX,-105480 F,172,FX,-3166.8 F,173,FX,-2002.8 F,174,FX,-2095.8 F,175,FX,-2245.2 F,176,FX,-2403 F,177,FX,-2514 F,178,FX,-2645.4 F,179,FX,-2842.2 F,180,FX,-2974.2 F,181,FX,-3084.6 F,182,FX,-3294 F,183,FX,-3457.8 F,184,FX,-3634.2 F,185,FX,-3837.6 F,186,FX,-3927.6 F,187,FX,-4107.6 F,188,FX,-4334.4 F,189,FX,-4444.2 F,190,FX,-4792.2 F,1,FY,49554 F,2,FY,68400 F,3,FY,-84060 F,9,FY,39192 F,10,FY,19410 F,11,FY,28320 F,12,FY,84660 F,13,FY,98160 F,14,FY,109020 F,19,FY,125820 F,20,FY,124500 F,21,FY,-86760 F,28,FY,116760 F,29,FY,121440 F,31,FY,124260 F,33,FY,126180 F,35,FY,127320 F,37,FY,127860 F,39,FY,127920 F,41,FY,127560 F,42,FY,126840 F,44,FY,122880 F,46,FY,120780 F,48,FY,118200 F,50,FY,114900 F,52,FY,110820 F,53,FY,96840 F,54,FY,105180 F,56,FY,85740 F,57,FY,72420 F,58,FY,56898 F,172,FY,-182820 F,173,FY,-177480 F,174,FY,-178140 F,175,FY,-178620 F,176,FY,-179040 F,177,FY,-179580 F,178,FY,-180240 F,179,FY,-180900 F,180,FY,-181500 F,181,FY,-182100 F,182,FY,-183480 F,183,FY,-184140 F,184,FY,-184860 F,185,FY,-185640 F,186,FY,-186480 F,187,FY,-187320 F,188,FY,-188100 F,189,FY,-189000

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