ANSYS实例分析连拱隧道开挖命令流

!III级围岩，二维，全断面开挖/cle/filname,ch-three-2D,1!几何参数!计算外围区域*set,x1,-60*set,x2,60*set,y1,-30*set,y2,50*set,l1,3.5!锚杆长度*set,r1,0.0125!锚杆半径*set,th1,0.15!初次衬砌厚度*set,th2,0.05!中导洞喷层厚!材料参数!中隔墙*set,ec25,29.5e9*set,uc25,0.2*set,dens25,2500!喷射混凝土*set,ec20,21e9*set,uc20,0.2*set,dens20,2200!锚杆*set,el,170e9*set,ul,0.3*set,densl,7800!围岩*set,er,6e9*set,ur,0.28*set,densr,2500*set,cr,0.8e6*set,fir,40/prep7!定义单元类型et,1,plane42keyopt,1,3,2!平面应变问题et,2,beam3keyopt,2,6,1!打开输出内力选项et,3,link1!定义实常数r,1,th1,th1/12,th1r,2,th2,th2/12,th2r,3,3.1415926*r1**2!几何建模!建中隔墙k,1,-3,-1.69k,2,-3,-0.89k,3,-3,-0.37k,4,-1.33552,-0.37k,5,-0.95134,1.57593k,6,-1.25121,3.53662k,7,1.25121,3.53662k,8,0.95134,1.57593k,9,1.33552,-0.37k,10,3,-0.37k,11,3,-0.89k,12,3,-1.69l,1,2l,2,3l,3,4larc,4,6,5larc,6,7,5,3larc,7,9,8l,9,10l,10,11l,11,12l,12,1!左侧围岩及锚杆圈k,13,-3,0.81k,14,-2.52524,2.42963k,15,-1.483023,4.11778k,16,-1.77650,4.67036k,17,-2.058364,5.09399k,18,-2.37658,5.49104k,19,-2.734606,5.864085k,20,-3.12567,6.20235k,21,-5.88951,7.72342k,22,-9,8.25k,23,-12.11049,7.72342k,24,-14.8743,6.20235k,25,-16.57763,3.97894k,26,-17.02812,1.21456k,27,-16.9,-0.89k,28,-20.4,-0.89k,29,-20.51567,0.91966k,30,-19.7906,5.36705k,31,-17.05,8.944k,32,-13.26253,11.02838k,33,-9,11.75k,34,-4.146154,10.80594k,35,0,8.11142k,36,1.143324,6.85081!导洞左侧圈l,3,13larc,13,6,14!左侧开挖圈larc,6,16,15larc,16,18,17larc,18,20,19larc,20,22,21larc,22,24,23larc,24,26,25l,26,27!锚杆圈l,28,29larc,29,31,30larc,31,33,32larc,33,35,34l,35,36!内圈线合并lcomb,15,16lcomb,15,17lcomb,15,18lcomb,15,19!外圈线合并lcomb,20,21lcomb,20,22lcomb,20,23numcmp,allldiv,14,,,2ldiv,15,,,36ldiv,16,,,36ldiv,17,,,2kdele,19,22,1kdele,25,27,1numcmp,allkdele,17numcmp,all!锚杆线（40根，含建3维时可用的另外20根锚杆）l,16,21l,22,93l,17,20*do,i,23,57,1l,i,115-i*enddol,18,19l,18,2numcmp,all!内层细化区域k,100,-16.9,-1.69k,101,-20.4,-1.69k,102,-24.9,-1.69k,103,-24.9,-0.89k,104,-24.9,16.25625k,105,,16.25625k,106,x1,-1.69k,107,x1,16.25625k,108,-24.9,y2k,109,-24.9,y1l,1,100l,100,101l,101,102l,102,103l,103,104l,104,105l,19,103l,70,104l,18,100l,19,101l,102,109l,102,106l,104,107l,104,108!左侧线镜像至右并建立各面allslsymm,x,11,143,1rectng,x1,x2,y1,y2asbl,1,allnummrg,all,,,lownumcmp,alllcomb,287,288lcomb,289,290lcomb,294,295lcomb,296,297lcomb,130,292numcmp,allalls!定义材料属性!岩体*do,i,1,6,1mp,ex,i,ermp,prxy,i,urmp,dens,i,densrtb,dp,itbdata,1,cr,fir*enddo!中导洞及隧道初支*do,i,7,10,1mp,ex,i,ec20mp,prxy,i,uc20mp,dens,i,dens20*enddo!锚杆左右侧*do,i,11,12,1mp,ex,i,elmp,prxy,i,ulmp,dens,i,densl*enddo!中隔墙mp,ex,13,ec25mp,prxy,13,uc25mp,dens,13,dens25!中导洞初支!左侧type,2mat,7real,2lsel,s,line,,1,2,1lsel,a,line,,11,12,1lesize,1,,,1lesize,2,,,1lesize,11,,,2lesize,12,,,6lmesh,all!右侧mat,8real,2lsel,s,line,,8,9,1lsel,a,line,,259,260,1lsel,a,line,,5lesize,9,,,1lesize,8,,,1lesize,260,,,2lesize,259,,,6lesize,5,,,4lmesh,all!左侧隧道初支mat,9real,1lsel,s,line,,13,15,1lsel,a,line,,18,52,1lsel,a,line,,288lesize,13,,,3lesize,all,,,1lmesh,all!右侧隧道初支mat,10real,1lsel,s,line,,139,140,1lsel,a,line,,142,176,1lsel,a,line,,286lsel,a,line,,292lesize,286,,,3lesize,all,,,1lmesh,all!左隧道锚杆type,3mat,11real,3lsel,s,line,,89,123,2lsel,a,line,,263,269,3lsel,a,line,,271,279,8lsel,a,line,,210lsel,a,line,,266lesize,263,,,3lesize,269,,,3lesize,271,,,1lesize,279,,,1lesize,210,,,1lesize,266,,,1lesize,all,,,5,2lmesh,all!右隧道锚杆type,3mat,12real,3lsel,s,line,,212,246,2lsel,a,line,,277,280,3lsel,a,line,,265lsel,a,line,,270lsel,a,line,,87lsel,a,line,,17lesize,277,,,3lesize,280,,,3lesize,265,,,1lesize,270,,,1lesize,87,,,1lesize,17,,,1lesize,all,,,5,2lmesh,all!中墙type,1mat,1lsel,s,line,,1,10,1lesize,3,,,2lesize,4,,,8lesize,6,,,8lesize,7,,,2lesize,10,,,8amesh,97!左中导洞mat,2amesh,2!右中导洞mat,3amesh,3!左隧道内岩体mat,4lsel,s,line,,124lesize,124,,,20amesh,101!右隧道内岩体mat,5lsel,s,line,,261lesize,261,,,20amesh,102!导洞上方围岩mat,6lsel,s,line,,264,267,3lsel,a,line,,281lsel,a,line,,268,278,10lsel,a,line,,272lesize,264,,,3lesize,278,,,3lesize,all,,,1!左侧锚杆加固圈lsel,s,line,,88,122,2!还有264,267,281为扩展到3维的锚杆lesize,all,,,5,2lsel,s,line,,53,86,1lsel,a,line,,16lsel,a,line,,287lesize,all,,,1!右侧锚杆加固圈lsel,s,line,,211,245,2!还有278,87,17为扩展到3维的锚杆lesize,all,,,5,2lsel,s,line,,177,209,1lsel,a,line,,291,294,3lsel,a,line,,141lesize,all,,,1!小外围上部lsel,s,line,,64,86,1lsel,a,line,,188,209,1lsel,a,line,,294lccat,alllsel,a,line,,130,132,1lsel,a,line,,252lesize,130,,,46lesize,132,,,8,2lesize,252,,,8,2amesh,103!小外围左lsel,s,line,,53,63,1lsel,a,line,,287lsel,a,line,,16lccat,alllsel,s,line,,129lsel,a,line,,131lesize,129,,,13lesize,131,,,8,2amesh,99!小外围右lsel,s,line,,291lsel,a,line,,177,187,1lsel,a,line,,141lccat,alllsel,a,line,,250lesize,250,,,13lsel,a,line,,251lesize,251,,,8,2amesh,100!小外围下lsel,s,line,,128lesize,128,,,1lsel,s,line,,127lesize,127,,,8,2lsel,s,line,,133,134,1lesize,all,,,1lsel,s,line,,126lesize,126,,,5,2lsel,s,line,,125lesize,125,,,20lsel,s,line,,262lesize,262,,,20lsel,s,line,,253,254,1lesize,all,,,1lsel,s,line,,247lesize,247,,,5,2lsel,s,line,,249lesize,249,,,1lsel,s,line,,248lesize,248,,,8,2amesh,42,43amesh,1,4,3amesh,82,83!大外围网格划分lsel,s,line,,274,276,2lsel,a,line,,136,137,1lsel,a,line,,256,257,1lsel,a,line,,282,285,3lesize,all,,,18,2.5lse