探讨隧道开挖过程模拟方法 [复制链接]

!修改网格及参数（上下台阶Ⅴ级围岩） q'8*bu_  
finish .jD!+wv{9  
/clear c[ZrQJ  
*afun,deg DujVV(+I  
  QQW}.>N  
B<I(t"s  
x_zs=-50 le 
\f:  
y_zs=30 BSMb(EnqX  
x_yx=50 Zp/+F(  
y_yx=-40 ^0v3NG6  
  Md~SzrU  
8e-nzc,]  
num=24 =p4n@C  
th_s=0 )IcSdS0@M  
th_f=180-th_s <<01@Q <  
th=(th_f-th_s)/num >>T7;[h  
  p(pfJ^/:(  
J+t51B(a  
yx_1_x=0 7nT|yL?  
yx_1_y=0 ?7NSp2aq2A  
yx_2_x=0 |Lg2;P7\  
yx_2_y=11.37 Kn->R9Tl  
yx_3_x=3.34 iQ" LIeD  
yx_3_y=0 2FuV%\p  
yx_4_x=-3.34 /}6I3n  
yx_4_y=0 |aLK_]!  
r_1=5.8  b+a+OI D  
r_2=14.4 \=WPJm`p  
r_3=2.67 _{`Z?lt  
r_4=2.67 ht%qjE  
r_jg_1=8.8 Az@@+?,%Y  
r_jg_2=17.4 %JBLp xnq  
r_jg_3=5.67 KNmU2-%l  
r_jg_4=5.67 "9P @bA  
  ?w(hPUd!2  
!U% |pa  
!beam3单元厚度（考虑钢纤维、钢拱架提高0.5） )f$4:Pq  
t1=0.25*1.5 79;uHR&S  
!link1单元半径 ;-`NT` #2  
r1=12.5e-3 i@+m<YS:2>  
  -ZE YzZqY  
:lXY% [!6P  
!plane42单元 Lan|(!aW  
e_r=0.18e9 d2eXN3"  
u_r=0.35 :jv(-RTI  
dens_r=1950 c/+6M  
c_r=0.18e6 )yyH_Ax2  
fi_r=23 LN+x!#:e  
!beam3单元 We$ n  
e_c=23e9 d(|?gN^  
u_c=0.2 bK6^<,~  
dens_c=2200 U Y*`R  
!link1单元 P@@MQ[u?!.  
e_a=210e9 JL4E`  
u_a=0.25 I;rW!Hb  
dens_a=7700 K W&muD  
  %JDQ[%3qY  
rSv,;v  
/prep7 2z{B  
!单元类型 iA{q$>{8  
et,1,beam3 ;@S'8  
et,2,plane42,,,2 |kh{EUE ;  
keyopt,2,3,2 m4~
 |z  
et,3,link1 <eEIR  
  =7e!'cF[  
p^ (Z  
!实常数 LT$t%V0?.e  
r,1,t1,t1*t1*t1/12,t1 U+'zz#0qN  
r,2,3.14*r1*r1 Rw `ezC#  
  |_ED*ATR=  
??aO3Vm{  
!材料属性 ASov/<D_q  
!上台阶支护 y@v)kN)Y9\  
mp,ex,1,e_c 7*{l\^ism;  
mp,prxy,1,u_c ]h1.1@>xc  
mp,dens,1,dens_c Fc[vs5
2  
!下台阶支护 
41=H&G&  
mp,ex,2,e_c rD21:1s  
mp,prxy,2,u_c nGWy4rY2S  
mp,dens,2,dens_c H.|I|XRG/  
!上台阶土体 FVkl#Qy~  
mp,ex,3,e_r oJNQdW[  
mp,prxy,3,u_r 423%K$710  
mp,dens,3,dens_r cQ<|Of  
tb,dp,3 Y[)mHs2  
tbdata,1,c_r,fi_r " 4#&tNQ  
!下台阶土体 Lk]|;F-2i  
mp,ex,4,e_r VDOC>  
mp,prxy,4,u_r j5R0e}/r  
mp,dens,4,dens_r +a*Ic8*  
tb,dp,4 >Z*b0j  
tbdata,1,c_r,fi_r JtY$AP$  
!围岩 v/xlb&Xx  
mp,ex,5,e_r /-!Fr:Ox>  
mp,prxy,5,u_r ;39a`  
mp,dens,5,dens_r G*EF_N.G0  
tb,dp,5 qJs_ahy(  
tbdata,1,c_r,fi_r 6<@+J  
!锚杆 K:-jn}i?/  
mp,ex,6,e_a zjA#8;h~w  
mp,prxy,6,u_a IT=y+  
mp,dens,6,dens_a p=UW ^95  
  Wn6m$=  
zQ:nL*X'Z"  
!实体建模 Y*pXbztP  
k,1,yx_1_x,yx_1_y CvRCcSJM\2  
k,2,yx_2_x,yx_2_y Ga9iPv  
k,3,yx_3_x,yx_3_y cQLPgE0  
k,4,yx_4_x,yx_4_y 5"40{3  
k,101,yx_1_x,yx_1_y,10 k(tB+k!vH\  
k,102,yx_2_x,yx_2_y,10 2k=|p@V n~  
k,103,yx_3_x,yx_3_y,10 7
2RTEGy  
k,104,yx_4_x,yx_4_y,10 ~]no7O4  
circle,1,r_1,101 wQ+il6  
circle,2,r_2,102 ea @ H  
circle,3,r_3,103 z-K};l9y  
circle,4,r_4,104 0sSBwG  
lcsl,all 0TV16--  
lsel,s,,,17,22,1 y|BHSc3  
lsel,a,,,46,48,1 d~_5Jx  
lsel,a,,,27,28,1 Mu:zWLM*M  
lsel,a,,,43 yj'lHC  
lsel,inve SJ22
 
ldele,all,,,1 ^m D$#  
lsel,all q1YNp`]0i8  
lcomb,17,18 ~)$R'=  
lcomb,19,21 WwoT~O8R  
lcomb,27,43 ([a;id  
lcomb,28,46 c99|+i
50  
  `}P9[HP  
fA?Wf[`x  
cm,zh,line BQUYT/$(  
  K)l*$h&-  
:T PG~`k(  
circle,1,r_jg_1,101 3ONWu  
circle,2,r_jg_2,102 MY\mo,#  
circle,3,r_jg_3,103 (W"0c?i|]  
circle,4,r_jg_4,104 ^"4?Q  
cmsel,s,zh,line RF6]_-  
lsel,inve YH%U$eS#g  
lcsl,all kz1Z K  
lsel,s,,,23,25,2 ;j;U9-oh  
lsel,a,,,18,21,3 VIGLl'8p  
lsel,a,,,26,62,36 B^/Cx  
lsel,a,,,24,59,35 @o@SU"[?_  
lsel,a,,,33,55,22 Qu<HeSA_  
lsel,a,,,34,58,24 Bk.`G)t  
cmsel,a,zh,line S+6YD0  
lsel,inve yTbtS-  
ldele,all,,,1 vm*9xs  
lsel,all 2>x[
_  
lcomb,23,25 liB~vdqj  
lcomb,18,21 M{u7Ef  
lcomb,33,55 { ~{D(k  
lcomb,34,58 N{RHbSa(  
allsel R(y`dQy<K  
  v(O@~8(I  
 ;1,#rTs  
kdele,101,104,1 h\)ual_r[j  
  j _E(h.  
/YwwG;1  
rectng,x_zs,x_yx,y_zs,y_yx [KO\!u|?YS  
asbl,all,all \(f82kv  
  u0+<[Ia'q  
zYPvpZV/  
!利用工作平面切割围岩 3!*`hQ;s  
allsel ByWad@-6i  
wpcsys ou|3%&*"  
wpoff,-1.8*r_jg_1 ;SA+
|,  
wprota,,,-90 A1zV5-E/  
asbw,all )086u8w )y  
  3e;K5qSeo/  
|
QH )A  
wpcsys 86&r;c:  
wprota,,,-90 =5pwNi_S  
asbw,all :^QV,d<C  
  iu+H+_  
odcrP\S  
wpcsys 2qj0iRH#N<  
wpoff,1.8*r_jg_1 aQ 6T2bQ  
wprota,,,-90 _#P5j#  
asbw,all ~fgS"F^7n  
  K}S=f\Q]  
ac4dIW{$3  
wpcsys mp]UUpt  
wpoff,,1.7*r_jg_1 \gZjq]3  
wprota,,-90 T5-'|+  
asbw,all oFGgr2Re  
  N~yGtnW  
h2]GV-  
wpcsys ,n5 [Y)  
wprota,,-90 .W-=VzWX  
asbw,all Zq}Cl'f  
  y3V47J2o  
<l9qhqHv&  
wpcsys '(($dT  
wpoff,,-1.4*r_jg_1 97!VH>MX  
wprota,,-90 v}z{OB  
asbw,all V SH64  
wpcsys LTD;  
  UB;~Rf(.  
7XIG ne%v  
allsel a)L=+Z  
/pnum,line,1 D>q?My  
/pnum,area,1 8\Z/mU*4  
  @)@hzXQ  
^yF2xJ)9-  
!锚杆线 W.b?~  
asel,s,,,17,18,1 Y2p~chx9  
wprota,,-90 z1~U#  
wprota,,,-th_s BA0.B0+"  
*do,i,1,num,1 YC~kq?  
  wprota,,,-th ~hA;ji|I  
  asbw,all f['pHR%l2$  
*enddo %1]Lc=[j  
allsel [SLBA_d  
  P\|i<Ds_M  
0l%|2}a  
!围岩分块，利于划分网格
h|=&a0  
allsel Riz!HtyR  
lsel,none 3WdANR  
l,26,79 ?#;zB  
asbl,24,all #T)gKp  
  8|#p
D4e  
p>]2o\["  
lsel,none kIUb`b>B  
l,28,57 )/<\|mR  
asbl,21,all Y{#m=-h  
  O/Wc@Ln  
$y*["~TJ  
lsel,none ViT$]Nv  
l,42,39 )wYbcH  
asbl,16,all "Q@ZS2;A  
  GwVSRI:[N  
YVL
aO*(f  
lsel,none 4q5bW+$Xj  
l,44,40 E :Y *;  
asbl,15,all *[_>d.i  
  PizPsJ|&  

\=/^H  
  gobqS+c  

,  
!划分网格 .@ElfPP(L  
allsel bMw)>4  
lesize,57,,,6,,1 "&/&v  
lsel,s,,,2,4,1 rj].bGQ,+  
lesize,all,,,12 $.@)4Nu!_  
!上台阶土体 @v,qfT*k7  
asel,s,,,1 G" Fd]'  
lsla,s pYs"Y;%  
csys,1 3l@={Ts  
lsel,r,loc,x,r_1 q y8=4~40
 
lccat,all bP 2IX  
mat,3 f&ym'S  
type,2 IZ
6[|Ach6  
mshape,0 9m fYB  
mshkey,1 `cr.C|RT:  
amesh,all =p)Wxk  
  ' RjFWHAp  
,2%>e"%  
asel,s,,,2 \/9uS.Kw  
lsla,s )xQA+$H#4  
lsel,r,loc,x,r_1 GZ];U]_  
lccat,all `QlChxd  
csys,0 `jb?6;15  
mat,3 s^$zOp9  
type,2 i.Qy0  
mshape,0 5sq#bvfJ o  
mshkey,1 &?<o692  
amesh,all i=<N4Vx  
  n'JwT! A  
"+ji`{  
!下台阶土体 (k..ll p~  
allsel /*lSpsBn  
!aclear,22,23 eID"&SSU  
lesize,28,,,10 1qb
3.  
lesize,27,,,10 ; . c]0  
lesize,47,,,2 )*iSN*T8q  
lesize,48,,,2 /tf}8d  
lesize,20,,,2 *r+i=i8{  
lesize,22,,,2 KPUc+`cN%  
lccat,20,47 W/uaNp  
lccat,22,48 yl%F}kBR  
mat,4 S0~F$mP'  
type,2 dt 4_x1  
mshape,0 >w?O?&Q$  
mshkey,1 $IQ !g  
amesh,22,23,1 -<i&`*zG  
lsel,s,lccat #{l+I(M  
ldele,all H0s,tTK8  
  c]W]m`:  
,bCPO`45  
!支护 T
UiXE~8=  
allsel 13Ee"r  
asel,s,mat,,3,4,1 XH0R:+s  
lsel,s,ext q7wd96G:  
lsel,r,loc,y,0,r_jg_1 GjA;o3(  
cm,zh_s,line Kl$!_$  
mat,1 928szUo:  
real,1 n5%rsNxg  
type,1 lYeot8  
lmesh,all h?DMrYk_%#  
  ~'HwNzDQc  
8KW}XG  
allsel Db= iJ68  
asel,s,mat,,3,4,1 XWbe|K!e  
lsel,s,ext b'^-$  
lsel,r,loc,y,0,-r_jg_1 :D?%!Q 0  
cm,zh_x,line 5HioxHL  
mat,2 G;MgrA#\  
real,1 ])a?ri  
type,1 Ne.W-,X^cL  
lmesh,all y8wOJZ<K
 
  Ni GK|Z  
7k:}9M~  
!锚区围岩和锚杆 {JzX`Z30l  
csys,1 'UT 4x9&z  
asel,s,loc,x,r_1,r_jg_1 Kig.hHj@  
lsla,s d;(L@9HHD  
lsel,r,loc,x,(r_1+r_jg_1)/2 Hi9;i/  
csys,0 'd1E~A  
cm,mg,line 8sg8gBt  
mat,6 s%J|r{F6  
real,2 w-|i8%X  
type,3 w=3@IW  
lesize,all,,,4,1.8 iR(A^  
lmesh,all %n9}P , ?  
mat,5 dLal15Pb  
type,2 7Z"mVh}  
mshape,0 p(~>u'c  
mshkey,1 3`k1  
amesh,all 'e\m6~u\hm  
  ^`\c;!)F<  
v)+wr[Qs  
!aclear,27,28,1 >3X!c"#l  
allsel EH]5ZZ[Z  
lesize,16,,,4,1.8 xK0VWi  
lcomb,24,59 bUp%87<*X  
lesize,24,,,7 'sY>(D*CQ  
lesize,34,,,7 7 4aap2^  
amap,27,12,16,8,5 aM3%Mx?w  
  iH( K[F /  
,ibI@8;#~'  
lcomb,26,62 OcMd'fwO  
lesize,26,,,7 fh )QX  
lesize,33,,,7 X c,UR.  
amap,28,12,16,10,7 pR&cdORsP  
  91%+Bf()J6  
J~DP*}~XK  
!周围围岩 1p23&\\~  
!aclear,all i?'HVx  
allsel <{YP=WYW  
asel,s,loc,x,-1.8*r_jg_1,1.8*r_jg_1 _W]2~9  
asel,r,loc,y,0*r_jg_1,1.7*r_jg_1 naXo <B  
lsel,s,ext JXGIVH?Rpu  
lsel,u,loc,y,0 rNqJL_!  
lesize,all,,,6 RV^2[Gdi  
allsel ()(@Qcc  
asel,s,loc,x,-1.8*r_jg_1,1.8*r_jg_1 l`gRw4/$  
asel,r,loc,y,-1.4*r_jg_1,0*r_jg_1 3>0/WbA:7E  
lsel,s,ext =1^Ru*G  
lsel,u,loc,y,0 ?qw&H /R  
lesize,all,,,7 )dJM  
  ;MCv  
. %tc7`k8  
lsel,s,,,43,69,26 -d%bc?  
lsel,a,,,19,23,4 JQsS=m7Et  
lsel,a,,,56,58,2 BYVp~!u  
lsel,a,,,133,134,1 \Q*3/_}G  
lesize,all,,,9,1.2,1 W&z.O  
asll,s 1 xiq]~H  
  =@binTC4  
EFf<|v  
csys,1 L`x:Y>C(  
lsel,s,loc,x,r_jg_1 A,lcR:@w  
lsel,r,loc,y,0*th,6*th ;#3!ZB:}  
lccat,all "
a5?cX;  
lsel,s,loc,x,r_jg_1 phl5E:fIKx  
lsel,r,loc,y,6*th,12*th |vTirZP  
lccat,all j"_V+)SD  
lsel,s,loc,x,r_jg_1 ~{Tus.jk  
lsel,r,loc,y,12*th,18*th _7]5Q  
lccat,all !;'U5[}8  
lsel,s,loc,x,r_jg_1 /Rx%}~x/m  
lsel,r,loc,y,18*th,24*th zBB4lC{q  
lccat,all %9-).k  
csys,0 z.]t_`KuF9  
  6O$OM  
%I(N  
mat,5 nrwb6wj  
type,2 0l.+yr}PE  
mshape,0 5p94b*l  
mshkey,1 }.o rfW  
amesh,all > g8;x#  
lsel,s,lccat x nWapG  
ldele,all g}$]K!F  
  .4_EaQ;jX  
YqR MVWcnk  
!其他围岩 :5U(}\dL{  
!aclear,all H]UM2.  
asel,s,loc,x,-100*r_jg_1,-1.8*r_jg_1 4rwfY<G  
lsla,s "]kaaF$U%  
lsel,r,tan1,y,0 ub+>i  
lesize,all,,,16,0.5,1 8T
h|'  
  <|h
vH  
XdLB1H  
asel,s,loc,x,1.8*r_jg_1,100*r_jg_1 @5acTYQ  
lsla,s l]T|QhiVd  
lsel,r,tan1,y,0 1reJ7b0  
lesize,all,,,16,0.5,1 "p#mNc  
  2ztP'  
K$#(\-M  
asel,s,loc,y,1.7*r_jg_1,100*r_jg_1 )3'/g`c  
lsla,all w;}P<K
 
lsel,r,tan1,x,0 s#)fnNQ,  
lesize,all,,,8,0.5,1  Cj_cu  
  {\;CGoN|  
HR\yJt  
asel,s,loc,y,-100*r_jg_1,-1.4*r_jg_1 -AD3Pd|Y[  
lsla,all i)+@'!6  
lsel,r,tan1,x,0 Z7K;~*  
lesize,all,,,13,0.5,1 iZgv VH  
  }4#%0x`w  
d=xU f`^  
allsel -?2ThvT  
asel,s,loc,x,-1.8*r_jg_1,1.8*r_jg_1 QI=",vmau  
asel,r,loc,y,-1.4*r_jg_1,1.7*r_jg_1 x}AWWmXv  
asel,inve 5z5#_*)O  
mat,5 6n  
type,2 BtVuI5*h  
mshape,0 Rl.3p<sX  
mshkey,1 QC \8Zy  
amesh,all p
r(:99~3  
  `L]cJ0tAs  
_?Rprmjx}  
allsel XlV#)JX  
nummrg,node ,Tvk&<!0  
nummrg,elem "sUL"i  
nummrg,kp (](:0H  
numcmp,all 80![aj}z4G  
  HB||
'gIC  
?\(E+6tpP  
  n0>#?ek12  
A%k@75V@  
!施加约束 (05/}PhB`  
allsel Fv.}w_  
2?z3s|+[  
nsel,s,loc,x,x_zs U;`N:~|p#  
crz )F"  
nsel,a,loc,x,x_yx QuT8(s1Q!  
'.c[7zL  
d,all,ux Q
O[!  
yS@c2I602  
nsel,s,loc,y,y_yx #[qmhU{s  
DJS0;!# |O  
d,all,uy HIk5Q'ek  
i`z1if6O  
  ;v^tUyhCb  
4sP0oe[h  
save,step0,db g`d5OHvOo  
;8'hvc3i$  
  P5P:_hr  
E2Q;1Re@  
!指定求解选项 /$|
C s  
:p;!\4)u  
/solu Q0#oR[(  
$k,Z)2  
nlgeom,on 58DkVQ6  
?S~HnIn  
nropt,full WUvrC  
f<=<:+  
pred,on MT[V1I{LV  
IX$dDwY|O>  
lnsrch,on 9s>q4_D  
5k)QjZo  
nsubst,10,50,10 )^qM%k8  
-+A
xa[,5=  
  n;@PaE^8=  
)D{L<.i_  
!荷载步1,自重应力场 9E'fM  
zflq|dW  
allsel ^HgQ"dD <  
jV2L;APCq  
esel,s,type,,1,3,2 "9'~
6b  
0M7Or)qN  
ekill,all R9A8)dDz  
4w
\ r `@  
  x{6KsYEY  
 0w>V![  
allsel lr'h  
4zkn~oy  
acel,,9.8 #k&"Rv;,  
5^<X:1J$  
allsel Hbu8gqu  
Jz&a9  
solve V(I!HT5.W  
/{>$E>N;  
save,step1,db $N'AZY]4]  
9^6E>S{=  
esel,s,live \3JZ=/  
GvSSi'q~B  
eplot K1>X%f^  
gHdNqOy c  
  9>yLSM,!rS  
o=}}hE\H  
!荷载步2,上台阶开挖，应力释放 4QC"|<9R  
xP#vAR  
!提取节点力 7|%|w  
Aslh}'$}-  
/post1 )hs"P%Zg  
7r;7'X5  
esel,s,mat,,3 Rah"La  
cyrVz4_a  
nsle,s B~+3<#B  
O#LG$Y n*  
nsel,r,ext I,TJV)B  
.B?6  
*get,n,node,,count C))5,aX  
O<7Q>m  
*dim,n_nf,array,n,3 +`tl<rg;  
4<}!+X7m  
*do,i,1,n yHhx- `  
(3cJ8o>&  
*get,n_nf(i,1),node,,num,min 5&?[Vt  
'NJGez'b,  
nsel,u,,,n_nf(i,1) JjA3G`m=  
h1}U#XV  
*enddo Tzr_K  
URU,&gy=  
!*status,n_nf XJg8-)T#  
_gU:!:}  
*do,i,1,n jf&B5>-x  
sZe$?k|  
nsel,s,,,n_nf(i,1) W>f q 9  
ffoL]u\  
fsum g)0>J  
s
%M#  
*get,n_nf(i,2),fsum,,item,fx F6 mc
<n  
mm}y/dO~}  
*get,n_nf(i,3),fsum,,item,fy be?>C 5  
 N>ncv  
*enddo e&~vO| 3w%  
h?_Cv*0q  
!*status,n_nf yP$@~L[!  
T_t5Tg~i[N  
parsav,all,002,PARM 7~b=G  
o>|&k]W/  
  5k:SD7^b  
\Ui3=8(
 
/solu I=aoP}_  
#(@!:f1  
antype,,rest G47(LE"2b  
&10l80vj  
!杀死上台阶土体单元 >+,w2m@0  
/x%h@Cn!  
allsel #jrtsv]  
s;brs}  
esel,s,mat,,3 r]q;>\T'  
/80H.|8O  
ekill,all PP*6nW8  
UY>[  
!施加等效释放节点力 0gRj3al(  
5Zf^cou  
parres,,002,PARM EdL2t``  
(vX) <Z !  
esel,s,mat,,3 Lql2ry$Wa  
%x'}aTa  
nsle,s [8C|v61Y  
FOPfob[  
nsel,r,ext _+!@c6k)ra  

(Q5rOrA"  
*do,i,1,n .7K)'  
yv[3&E?  
f,n_nf(i,1),fx,0.65*n_nf(i,2) n?KhBJx 4  
J.EBt3  
f,n_nf(i,1),fy,0.65*n_nf(i,3) *wk?{ U  
sKy3('5;  
*enddo R$XHjb)  
yj$$k~@  
  ^C=dq(i=[  
8
H'ybfed  
!约束死单元自由度 U g:  
Z8Iqgz7|y  
allsel ?"F9~vx&G  
2jf73$F  
esel,s,live 1Clid\T,o  
/^]/ iTg  
nsle,s M)F_$ ICE-  
eOoqH$ i  
nsel,inve _sb~eB~<(  
|,bP`Z  
d,all,all Iuyq!R4:7  
zq6)jHfq.  
  F50l->F2&  
Pz^C3h$5_  
allsel /!#A'#Z  
c@
E;v<r'  
solve 0OXl`V`w  
>D jJ*vM  
save,step2,db ^B_SAZ&%%  
iQJa6QF&:  
esel,s,live |(%=zb=?X  
eJ*u]GH U  
eplot KuRJo]  
HNRAtRvnY  
  }qw->+nD  
mtg=v@~  
!荷载步3 ;AG&QdTMh  
yhkKakg,)  
!删除节点力，激活上台阶支护和锚杆 {RGQX"k  
%G|Rb MP  
allsel gSa!zQN6  
`h|Y0x  
esel,s,mat,,3 J9*i`8kU.  
Z%Pv,h'Q  
nsle,s zv7)JH7EV&  
6b7c9n Z  
nsel,r,ext 1{ H=The  
^e]O-,UBk  
fdele,all,all 4tEAi4H|`@  
?f$U8A4lp  
  p[O\}MAd#  
pO/vD~C>  
esel,s,mat,,1,6,5 ?n]adS{  
!kG|BJ$j  
ealive,all t~H0Qeb[v=  
)oALB vX  
  <vE
|QxpR  
:GN++\1pw  
allsel ?KB] /gT^  
!|W.YbS  
solve 1V wcJd  
VKtlAfXy~  
save,step3,db qSDn0^y  
m-6&-G#  
  G|*&owJ  
48Jt5Jz_  
!荷载步4，下台阶开挖，应力释放 V|hwT^h  
r#A*{4wz  
!提取节点力 EJP]E)  
Ge @qvP_  
/post1 ZC%;5O`  
`g_r<EY8/  
esel,s,mat,,4 L PS,\+  
g[R4/]K^$  
nsle,s }= wor~  
;"2VU"  
nsel,r,ext 0~z`>#W,  
6g\hQ\+Z}  
*get,n,node,,count (Hmm^MV)  
.EPv4[2%F8  
*dim,n_nf,array,n,3 &"?99E>  
2cO6'?b  
*do,i,1,n GKbbwT0T|  

V%{WH}  
*get,n_nf(i,1),node,,num,min F @<h:VVP  
aZ|?i }  
nsel,u,,,n_nf(i,1) `rXb:P7m{j  
blWtC/!Aq;  
*enddo Go!{@xx>  
c
^O&A\+;  
!*status,n_nf RH:vd|q+  
Vo6+|ztk|  
*do,i,1,n )+"5($~  
+?
W4ac1  
nsel,s,,,n_nf(i,1) H0!$aO  
[mv!r-=  
fsum 6yBd9=3K  
qcouZO  
*get,n_nf(i,2),fsum,,item,fx j/_&]6!
  
+~BP~  
*get,n_nf(i,3),fsum,,item,fy @}19:A<'  
QFnpp\K  
*enddo piH0_7qr  
ZqdoYU'  
!*status,n_nf #?k</~s6M`  
x N7sFSV@  
parsav,all,002,PARM BG8/  

:<s`)  
  MRw4?HqB  
Fw*O ciC  
/solu AAs&P+;  
qo$ls\[X  
antype,,rest RJUIB  
NM^uP+uS  
!杀死下台阶土体单元 >_xuXEslUz  
,v 2^Ui  
allsel 0{uaSR  
";7xE#jRk  
ealive,all
1<fW .Q)  
@ZjO#%Ep/  
esel,s,mat,,2,3,1 6-uLK'E  
tHo|8c~[  
esel,a,mat,,4 +Z2XP76(4A  
\gkhSL
q  
ekill,all zfE8=d8U  
FF#+d~$z  
!施加等效释放节点力 u]7wd3(  
|:&O!36  
parres,,002,PARM UlXxG|  
*Ti"8^`6  
esel,s,mat,,4 mhX66R  
F~qZIggD  
nsle,s (hdu+^Qj=  
cC>Svf[CzK  
nsel,r,ext TTFs|T6`q  
ez!W0  
*do,i,1,n $|@vmv0  
kxd
*B P  
f,n_nf(i,1),fx,0.65*n_nf(i,2) ;x2o|#`b  
+t%2V?  
f,n_nf(i,1),fy,0.65*n_nf(i,3) x{8h3.ZQ,  
HzKY2F(,  
*enddo @&EIH,c  
|dbKK\ X9  
  .4U*.Rf  
M2w'cdHk  
!约束死单元自由度 :b(W&iBWhI  
pqb`g@  
allsel d@1^U9sf  
zRD-[Z/-  
esel,s,live cV0CI&  
'Etq;^H  
nsle,s qljsoDG  

.gmS1ju  
nsel,inve ~Gz9pBv1  
@!'}=?`  
d,all,all 1%*\*z  
G`kz 0Vk  
  "f_qG2A{  
[:#K_EI5%  
allsel T]Ai{@i  
ls&H oJ7  
solve  U-4F  
OqDP{X:  
save,step4,db
GVJ||0D  
A"&<$5Q  
esel,s,live pc0{  
d6'G 7'9  
eplot *9$SFe|&n:  
-,b+tC<V)0  
  ;s{'cN[.  
d?J&mLQ6  
!荷载步5 z)U7  
r *6S1bW  
!删除节点力，激活下台阶支护 sH;_U)ssH  
.kg 3>*  
allsel &e:+;7  
|k90
aQO  
esel,s,mat,,4 [SC6{|  
'UWkJ2:!  
nsle,s RU4X#gP4Vh  
W"_<SYVJ  
nsel,r,ext SU4i'o  
V0_
tk"  
fdele,all,all rG6G~|mS  
86 e13MF  
  ^ex\S8j  
|r Aot2  
esel,s,mat,,2 Sk>=C0f:  
)]FXUz|;  
ealive,all 'xj5R=V  
l;@+=uVDHm  
  mu@J$\   
`qs}L  
allsel ;[R6rVHe{  
8I
/3T  
solve =FhP$r*  

/
CNsGx%%  
save,step5,db J'|=J   
=X7kADRq  
  e~zgH\`  
;Go^)bN ;  
!后处理 4 O8ct,Y  
!荷载步1 k Alxm{  
/post1 *}lLV.+A  
set,1,last N=<`|I  
esel,s,live .
waw=C  
plnsol,u,sum )wM%Ul<s  
plnsol,u,x sV a0eGc  
plnsol,u,y .6C/,rQ?c  
  S \]O8#OX  
3PU_STSix  
!荷载步3 7[;!enO  
set,3,last b/:wpy+9Z  
!支护内力 G5/A{1sz&  
esel,s,type,,1 Mt-r`W3 q  
etable,fx_i,smisc,1 XlU\D}zS  
etable,fx_j,smisc,7 bp:`m>4<  
plls,fx_i,fx_j,0.2 ^%9oeT{  
etable,fy_i,smisc,2 vnvpb! @Q  
etable,fy_j,smisc,8 .5G`Y  
plls,fy_i,fy_j,0.2 -9t"
$)&  
esel,s,type,,1 [A84R04_%  
etable,mz_i,smisc,6 0<\|D^m=&h  
etable,mz_j,smisc,12 Uw.')ZY=  
plls,mz_i,mz_j,-0.2 rV%T+!n%c  
  r9_ ON|  
hbx4[Pf  
!锚杆内力 T\}U{9ELL  
esel,s,type,,3 ewk7:zS/?  
etable,sa,ls,1 Qs,\P^n  
plls,sa,sa,0.06 3tTOs  
!etable,ybae,lepel,1 1 6zxPSTr}  
!plls,ybae,ybae,0.1 )DXt_leLg  
  K/ On|C  
.u7}p#  
!应力场 =
Z:]%  
esel,s,live e`qrafa  
plnsol,s,1 z.cDbkf}  
plnsol,s,2 QLO;D)fC  
plnsol,s,3 /Pg)7Zn  
plnsol,s,int +ausm!~6  
plnsol,eqv "?3=FB
p&  
  3E|||3rf  
XMI*obS'z  
  U~:H>  
^~[7])}g6  
!位移场(减去初始位移场) J.1c,@  
esel,s,live nd8<*ru$  
lcdef,1,1,last X#&5?oq`  
lcdef,5,5,last OX;(Mg|  
lcase,5 y 9]d{:9  
lcoper,sub,1 -pYmM d,  
plnsol,u,sum hUlRtt  
plnsol,u,x CXrOb+  
plnsol,u,y Df4O~j$U"s  
  (WT\
HR  
EE 1D>I  
  ;]-08lzO<4  
2O=$[b3  
  kzZgNv#G;  
`}),wBq  
/post26 TRi#  
numvar,30 FLMiW]?x  
!拱顶位移 d*^JO4'  
nsol,2,13,u,y I3nE]OcW@  
!水平收敛 4P3RRS  
nsol,3,139,u,x Z5q%L!4G  
nsol,4,1,u,x {S=<(A@  
add,5,3,4,,,,,1,-1 )4ek!G]Rb  
!地表沉降 ]2@(^x'=  
nsol,11,1621,u,y gGVt( ^  
nsol,12,2236,u,y 1
7~Pc  
nsol,13,2238,u,y }U_^zQfaj  
nsol,14,2227,u,y .z,-ThTH@\  
nsol,15,2276,u,y 4@0aN6Os  
nsol,16,2278,u,y W/2y;@  
nsol,17,2084,u,y $\P/ %eP  
  uQW)pD{_  
e#;43=/Ia  
prvar,2,3,4,5 XS&Pc  
prvar,11,12,13,14 s=jmvvs_V}  
prvar,15,16,17 CB#2XS>V  
  &s`)_P[  
QPf\lN/$4d  
  *1dZs~_  
v)du]  
  5_!L"sJ  
\7LL neq  
  lu{ *]
!  
ExO#V9DaW  
  UmVn:a  
 ,h^6y  
  :(~<BiqR(  
s1_Y~<yX  
  #!Cg$6%x9  
5>9Q<*  
  wnX;eU/n  
~},H+A!?  
  W@AHE?s6g  
4xW~@meNB  
  _K9PA[m5~  
ELwXp|L  
  q<E7qY+  
GhfhR^P  
  fh =R  
B@-\.m  
  9mDdX
 
{1)bLG|$  
  !6|_`l>G,  
c:K/0zY  
  F4\:9ws  
jj&G[-"bv  
  =r/K#hOR\J  
N#M>2b<A/T  
  _]*[TGap  
\xS X'/G  
  h{mzYy}b  
z\tY A  
  [Z/P[370  
-btNwE6[.  
  ]xvhUv!G  
9mvy+XD  
  RgoF4g+@  
mdL T7  
  qE2<vjRg  
!=21K0~t#  
  Ia](CN*;6  
x}a
?
B  
  w31O~Ve  
Q3ZGN1aX<  
  x%X3FbF]  
*P *.'XM  
  4mY^pQ1=L  
Eo$l-Hl5=  
  \&vXp"-@  
1W*Qc_5 v1  
  Aa1#Ew<r  
'dwsm7Xd  
  s8(Z&pQ  
aEdMZ+P.  
  hRuiuGC  
X{xkXg8h  
  *><j(uz!  
0*:n<T9  
  \|X 1  
;,Vdj[W$>  
  # d"M(nt  
=X'EDw  

请各位探讨一下，这命令流模拟才用的是多载荷步法还是反转应力法

还有就是，一般开挖支护是在一次求解中同步进行的，而这个程序却是分两步运行的，有什么区别吗？

不会吧，各位老大，能否高抬贵手，留下言

ansys？能把全部的命令流贴出来看看么 qB=%8$J  

全部贴出来了

探讨隧道开挖过程模拟方法 有程序，谢谢

探讨隧道开挖过程模拟方法 有程序，谢谢 naKB2y]l  
原来是ansys做的啊

怎么就没有高人伸出手，指点一二呢

材料详图，请大侠指点啊