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） GAEz :n  
finish R2Lq,(@-  
/clear 8&f}GdZh  
*afun,deg WSKG8JT^|  
  v`bX#\It  
C KBLM2D  
x_zs=-50 0

X~Dxs  
y_zs=30 pu,/GBG_  
x_yx=50 !JJCG  
y_yx=-40 FK;\Nce&  
 
F[ m^(x  
x]J{EA{+  
num=24 i8+kc_8#d  
th_s=0 D9+a"2|3<  
th_f=180-th_s 4f'WF5S/}8  
th=(th_f-th_s)/num -9\O
$I-3  
  D3vdO2H  
a|  
yx_1_x=0 fw'$HV76  
yx_1_y=0 A<QYW,:|  
yx_2_x=0 B$_F)2%m;  
yx_2_y=11.37 78Nli/U  
yx_3_x=3.34 6t<~. 2'  
yx_3_y=0 i=]IUjx<  
yx_4_x=-3.34 `%"zq"1`0  
yx_4_y=0 ycIT=AFYqd  
r_1=5.8 C.FGi`rrm  
r_2=14.4 e#)}.   
r_3=2.67 C<eeAWP3v  
r_4=2.67 1DN,  
r_jg_1=8.8 >{$;O  
r_jg_2=17.4 hQ#'_%:  
r_jg_3=5.67 &(IL`%  
r_jg_4=5.67 k-Le)8+b  
  >pT92VN  
YNH>^cD1  
!beam3单元厚度（考虑钢纤维、钢拱架提高0.5） ?7YX@x  
t1=0.25*1.5 YLJH?=2@  
!link1单元半径 _LxV)  
r1=12.5e-3
O"nY4  
  Yk6fr~b  
(;+JM*c2N  
!plane42单元 _T<ney}Y<  
e_r=0.18e9 t? yMuK  
u_r=0.35 C5*j0}  
dens_r=1950 l3)
(aay!  
c_r=0.18e6 P2!@^%o  
fi_r=23 z@{|Y;s  
!beam3单元 VEd\*  
e_c=23e9 b8feo'4Z   
u_c=0.2 hnmFhJ !g  
dens_c=2200 #AFr@n  
!link1单元 Fu(e4E  
e_a=210e9 MuO7_*q'n  
u_a=0.25 JIjqGxR  
dens_a=7700 !nU  
  84cmPnaT  
`3*>tq  
/prep7 2P"@=bYT"  
!单元类型 `9kjYSd#E  
et,1,beam3 to(OVg7_  
et,2,plane42,,,2 7a->"W  
keyopt,2,3,2 !f V.#9AB#  
et,3,link1 fZ 17  
  D
bH{; Fb  
yAi#Y3!::  
!实常数 u3dhMnUn  
r,1,t1,t1*t1*t1/12,t1 p$0;~1vH  
r,2,3.14*r1*r1 v$owG-_><  
  gjk=`lU  
XGk8Ki3w  
!材料属性 rbqH9 S  
!上台阶支护 ^4`q%_vm  
mp,ex,1,e_c '[{M"S  
mp,prxy,1,u_c UW. F1)  
mp,dens,1,dens_c 9L*gxI>  
!下台阶支护
b'St14_  
mp,ex,2,e_c 5MO:hE5sm  
mp,prxy,2,u_c Z[slN5]([  
mp,dens,2,dens_c BAx)R6kS;  
!上台阶土体 1Hy  
mp,ex,3,e_r #B&D  
mp,prxy,3,u_r sO~N2  
mp,dens,3,dens_r Bz }Kdyur  
tb,dp,3 ^-f5;B`\i  
tbdata,1,c_r,fi_r 67~m9pk  
!下台阶土体 x\3tSP7Vp  
mp,ex,4,e_r [yf2_{*0T  
mp,prxy,4,u_r U]@t\T3W  
mp,dens,4,dens_r 6JSa:Q>,  
tb,dp,4 cJGA5m/{I  
tbdata,1,c_r,fi_r kZWc(LwA  
!围岩 AuX&  
mp,ex,5,e_r l)Q,*i  
mp,prxy,5,u_r tQF7{F-}  
mp,dens,5,dens_r Gg{@]9  
tb,dp,5 AFc#2wn  
tbdata,1,c_r,fi_r I^qk`5w  
!锚杆 s[SzE6eQ`l  
mp,ex,6,e_a /1gKc}rB2  
mp,prxy,6,u_a U^snb6\5  
mp,dens,6,dens_a pIqPIuy  
  GKZn|<Y|{c  
8L|rj4z<#  
!实体建模 hUxpz:U*  
k,1,yx_1_x,yx_1_y 7'xT)~*$4  
k,2,yx_2_x,yx_2_y cSnm\f  
k,3,yx_3_x,yx_3_y 6Bo~7gnc  
k,4,yx_4_x,yx_4_y iShB^  
k,101,yx_1_x,yx_1_y,10 N`Zm[Sv7  
k,102,yx_2_x,yx_2_y,10 ?k<wI)JR  
k,103,yx_3_x,yx_3_y,10 Ddghw(9*H  
k,104,yx_4_x,yx_4_y,10 GmcxN<  
circle,1,r_1,101 = K"F!}  
circle,2,r_2,102 ZL+{?1&-  
circle,3,r_3,103 fc+P`r  
circle,4,r_4,104 |&o1i~Y  
lcsl,all ?A
8Uf=  
lsel,s,,,17,22,1 BB1'B-O  
lsel,a,,,46,48,1 Z8}Zhe.  
lsel,a,,,27,28,1 f>;5ZE4Zu  
lsel,a,,,43 0v,DQJ?w8  
lsel,inve Z>Rd6o'  
ldele,all,,,1 B@63=a*kG  
lsel,all 49@ pA-  
lcomb,17,18 ;_F iiBk7(  
lcomb,19,21 N?p9h{DG  
lcomb,27,43 r%&hiobMYs  
lcomb,28,46 .1t$(]CyC  
  |0b$60m$!t  
$xvEYK  
cm,zh,line aGr(djD  
  ? Ls]k  
}^pnwo9vV  
circle,1,r_jg_1,101 3|[:8  
circle,2,r_jg_2,102 _(0!bUs>  
circle,3,r_jg_3,103 =9LC"eI&|  
circle,4,r_jg_4,104 ;^=eiurv  
cmsel,s,zh,line fFqK.^Tn  
lsel,inve  bXQ(6P  
lcsl,all .]k(7F!W  
lsel,s,,,23,25,2 tV[?WA[xt  
lsel,a,,,18,21,3 MVe5j+8  
lsel,a,,,26,62,36 k(3s^B  
lsel,a,,,24,59,35 IhJ _Yed  
lsel,a,,,33,55,22 uY5f mM9  
lsel,a,,,34,58,24 `i9WnPRt  
cmsel,a,zh,line a' .o  
lsel,inve 2Qc&6-;`  
ldele,all,,,1 5lxC**NA  
lsel,all +)qPUKb?  
lcomb,23,25 TXH: +mc  
lcomb,18,21 _g0 qpa  
lcomb,33,55 #OJsu  
lcomb,34,58 wpb6F '  
allsel 'lHtz~[  
  t/u
$Ts  
svU107?  
kdele,101,104,1 Bb}JyT  
  )tz8(S  
Rl=NVo  
rectng,x_zs,x_yx,y_zs,y_yx ) Z0  
asbl,all,all Rqa#;wb!(  
  H]mY6D51"  
^pKC0E[%  
!利用工作平面切割围岩 L&Qdb xn  
allsel RCND|X  
wpcsys _U.8\J2  
wpoff,-1.8*r_jg_1 Njc3X@4=  
wprota,,,-90 +`mJ
h\*  
asbw,all YEXJh!X  
  F'C]OMBE  
&dbX>u q  
wpcsys +G7A.d`V}  
wprota,,,-90 6(ju!pE`  
asbw,all LZX-am`%  
  /7h}_zs6  
V}'|a<8kVv  
wpcsys jSaEw
N  
wpoff,1.8*r_jg_1 kVe^g
]F  
wprota,,,-90 /:z}WAW  
asbw,all s><RL]+{G+  
  7 G~MqnO|  
H_o<!YxK  
wpcsys `Rm2G  
wpoff,,1.7*r_jg_1 Oa$ew'  
wprota,,-90 [A yq%MA  
asbw,all IgLP=mqcWK  
  B>o#eW  
'355P
ce/  
wpcsys
8Nd +  
wprota,,-90 _0oZgt)  
asbw,all sq@Eu>Ng(X  
  ]Q6,,/nn  
5\S)8j `8  
wpcsys Q5Y4@  
wpoff,,-1.4*r_jg_1 +4GuA0N6  
wprota,,-90 @Ys(j$U't  
asbw,all *[.+|v;A  
wpcsys TAi |]U!  
  e1[kgp   
:c!7r
h7O  
allsel R 7xV{o  
/pnum,line,1 kD >|e<}\  
/pnum,area,1 f]
J?-ks  
  S;Lqx5Cd  
!#f4t]FM`B  
!锚杆线 1mFc]1W  
asel,s,,,17,18,1 n)sK#C-VA  
wprota,,-90 $gJMF(  
wprota,,,-th_s $B2* x$  
*do,i,1,num,1 VEwv22'  
  wprota,,,-th qV/"30,K  
  asbw,all x1|5q/I  
*enddo *xkbKkm  
allsel ]\+bx=  
  7V 2%  
Gvtd )9^<  
!围岩分块，利于划分网格 6i9m!YQV  
allsel VtZ  
lsel,none }]=b%CPJh+  
l,26,79 6
!+xf  
asbl,24,all 6$%]p1"!K  
  P`-(08t  
jQ%}e"  
lsel,none A^3cP, L  
l,28,57 ,
HUs MCXQ  
asbl,21,all [\@!~F{  
  b3#c0
GL  
$O%lYQY]  
lsel,none p!hewtb5  
l,42,39 B5=L</Aj  
asbl,16,all 1[} =,uaM  
  -x:Wp*,  
@ns2$(wkm@  
lsel,none e&<#8;2X  
l,44,40 r\'3q'7p  
asbl,15,all IW$&V``v  
  wI#rAx7f-  
YV.*8'*  
  4w*F!E2H\}  
+M-' K19  
!划分网格 !}l)okQH<#  
allsel ^Ac0#oX]M  
lesize,57,,,6,,1 ",#rI+ el  
lsel,s,,,2,4,1 pZlBpGQf  
lesize,all,,,12 U%t:]6d&}  
!上台阶土体 QbV)+7II=  
asel,s,,,1 0 m";=:(w  
lsla,s l.;y`cs  
csys,1 j<"0ym)A  
lsel,r,loc,x,r_1 lU:z>gC  
lccat,all FGy7KVR  
mat,3 uQ5NN*C=  
type,2 AWh{dM  
mshape,0 wrK$ZO]  
mshkey,1 rv9qF |2r{  
amesh,all NV36Q^Am[  
  sOzjViv  
HTQ.kV  
asel,s,,,2 y!blp>V6  
lsla,s Tk|0 scjE^  
lsel,r,loc,x,r_1 zp% MK+x  
lccat,all MR#j
I  
csys,0 t=xO12Z  
mat,3 n!ea)+^  
type,2 QkGr{  
mshape,0 r1}7Q7-z  
mshkey,1 O|4~$7  
amesh,all h'MX{Wm.  
  AY[7yPP  
}1:jM_H)k  
!下台阶土体 [9'5+RXw3  
allsel : b $ M  
!aclear,22,23 .NQoqXR  
lesize,28,,,10 `vL R;D  
lesize,27,,,10 J4!Z,-  
lesize,47,,,2 #y-OkGS ^  
lesize,48,,,2 ?rk3oa-  
lesize,20,,,2 :2 QA#  
lesize,22,,,2 O4]Ss}ol  
lccat,20,47 Y^2Ma878  
lccat,22,48 &|n*&@fF  
mat,4 0b?9LFd  
type,2 UF D_  
mshape,0 IR5 S-vO  
mshkey,1 ;=_<\2  
amesh,22,23,1 $daI++v`  
lsel,s,lccat 9oKRu6]D-  
ldele,all Y
0&w;P  
  hy W4=   
^%IKlj-E  
!支护 4JU#3  
allsel " &p\pR~  
asel,s,mat,,3,4,1 z*zLK[t+  
lsel,s,ext i*.Z~$  
lsel,r,loc,y,0,r_jg_1 u'yePJTE  
cm,zh_s,line e7]IEBbX2O  
mat,1 _YmYy\g  
real,1 va~:oA  
type,1 V=3NIw18  
lmesh,all _~HGMC)  
  K~x
G+Kh  
nFw&vR/q  
allsel 5c'rnMW4+p  
asel,s,mat,,3,4,1 03$Ay_2  
lsel,s,ext QTcngv[  
lsel,r,loc,y,0,-r_jg_1 azj<aaH  
cm,zh_x,line B&-;w_K  
mat,2 Y49kq}  
real,1 D 67H56[  
type,1 S4~^HvMG[Y  
lmesh,all x03GJy5  
  A5ktbj&gy<  
]A<\d  
!锚区围岩和锚杆 >+#TsX{  
csys,1 3j]La  
asel,s,loc,x,r_1,r_jg_1 ]L}<Y9)t  
lsla,s I".d>]16|  
lsel,r,loc,x,(r_1+r_jg_1)/2 b.8HGt<%  
csys,0
0t/S_Q  
cm,mg,line cvn,&G-`  
mat,6 ~ Z%>N  
real,2 SY>N-fW\H:  
type,3 A`#5pGR  
lesize,all,,,4,1.8 `S;pn+5  
lmesh,all q^"P_pV\  
mat,5 YjvqU /[3  
type,2 -S)
HB$8  
mshape,0 :3Ty%W&&  
mshkey,1 :bLGDEC  
amesh,all {D1=TTr^  
  hYb!RRGn  
*`|.:'  
!aclear,27,28,1 r/:9j(yxr  
allsel cMC1|3
 
lesize,16,,,4,1.8 :d)@|SR1  
lcomb,24,59 q^(
A6W  
lesize,24,,,7 '9{H(DA  
lesize,34,,,7 *M"lUw#(f  
amap,27,12,16,8,5 I/XVo2
Ee  
  C [=/40D  
d!Y,i!l!  
lcomb,26,62 &b"PjtU.X  
lesize,26,,,7 C\$7C5/  
lesize,33,,,7 /5U?4l(6[f  
amap,28,12,16,10,7 9
I]*T  
  @^k$`W;  
d<`Z{"g NS  
!周围围岩 :L*CL 8m  
!aclear,all {3_M&$jN  
allsel "N7C7`izc  
asel,s,loc,x,-1.8*r_jg_1,1.8*r_jg_1 \<T6+3p  
asel,r,loc,y,0*r_jg_1,1.7*r_jg_1 m[ifcDZ(e  
lsel,s,ext H{p+gj^J  
lsel,u,loc,y,0 ;,Lq*x2s  
lesize,all,,,6 Q1buuF#CU&  
allsel rf1-E57#  
asel,s,loc,x,-1.8*r_jg_1,1.8*r_jg_1 <:q]t6]$  
asel,r,loc,y,-1.4*r_jg_1,0*r_jg_1 i]8zZRe  
lsel,s,ext JOenVepQ,  
lsel,u,loc,y,0 k}F;e_  
lesize,all,,,7 i"Ct}7i  
  `.L8<-]W  
"W\ #d  
lsel,s,,,43,69,26 4)v\Dc/9i  
lsel,a,,,19,23,4 X+P3a/T  
lsel,a,,,56,58,2 vJl4.nk  
lsel,a,,,133,134,1 ;2#7"a^  
lesize,all,,,9,1.2,1 eHPGzNXb  
asll,s $sGX%u  
  BCsW03sQ  
_4[kg)#+  
csys,1 F'pD_d9]e  
lsel,s,loc,x,r_jg_1 bL swq  
lsel,r,loc,y,0*th,6*th wy:.  
lccat,all @HIC i]  
lsel,s,loc,x,r_jg_1 MbYa6jrF  
lsel,r,loc,y,6*th,12*th N@tzYD|hA  
lccat,all iOjmj0  
lsel,s,loc,x,r_jg_1 li/IKS)e$  
lsel,r,loc,y,12*th,18*th N{|N_}X`Y  
lccat,all
rh$%*l  
lsel,s,loc,x,r_jg_1 He">kJx  
lsel,r,loc,y,18*th,24*th dYfVox;  
lccat,all .'__ [|-{;  
csys,0 pg4M
$;
ED  
  \W/cC'  
FjkE^o>  
mat,5 TQID-I  
type,2 m"H9C-Y  
mshape,0 `A&64D  
mshkey,1 Xa9G;J$  
amesh,all rb`C:#j{J  
lsel,s,lccat AHn^^'&
x[  
ldele,all WXO@oZ!  
  *Z)`:Gae  
zcIZJVYA  
!其他围岩 ME0ivr*=:  
!aclear,all mR8&9]g&  
asel,s,loc,x,-100*r_jg_1,-1.8*r_jg_1 n+Fl|4  
lsla,s gmJJ(}HVz  
lsel,r,tan1,y,0 !Aj_r^[X`  
lesize,all,,,16,0.5,1 #G)ZhgB^  
  9.vHnMcq  
xjR/K&[m  
asel,s,loc,x,1.8*r_jg_1,100*r_jg_1 BO
/2kL8*  
lsla,s L|!9%X0.  
lsel,r,tan1,y,0 CIO&VK  
lesize,all,,,16,0.5,1 s7a\L=#p(  
  rIS \#j  
DX4 95<6*  
asel,s,loc,y,1.7*r_jg_1,100*r_jg_1 (Q#A Br8  
lsla,all 89'nbg  
lsel,r,tan1,x,0 D$#=;H ,  
lesize,all,,,8,0.5,1 <Ni]\-*  
  ~l{CUQU  
}{j[  
asel,s,loc,y,-100*r_jg_1,-1.4*r_jg_1 UL"JwqD  
lsla,all MttVgNV  
lsel,r,tan1,x,0 ?B@iBOcu[  
lesize,all,,,13,0.5,1 <aL$d7  
  =]Qu"nRB  
K V 4>(  
allsel |JuXOcr4  
asel,s,loc,x,-1.8*r_jg_1,1.8*r_jg_1 Xps MgJ/w  
asel,r,loc,y,-1.4*r_jg_1,1.7*r_jg_1 2)4{  
asel,inve QVzLf+R~  
mat,5 ?w3f;v  
type,2 7Py8!  
mshape,0 z'fGHiX7.0  
mshkey,1 uysGOyi
<u  
amesh,all G78rpp  
  crZ\:LeJ  
b4oZ@gVR;  
allsel (doFYF~w  
nummrg,node ~[ve?51  
nummrg,elem 7/Ve=7]  
nummrg,kp cJi5\<b  
numcmp,all 1eiH%{w  
  EG<K[t  
!{Y$5)Xh`]  
  pm3?  
|_!xA/_U'T  
!施加约束 BuK82  
allsel T][\wyLx1  
Dugr{Y/0  
nsel,s,loc,x,x_zs Q\ro )r  
k"GW3E;  
nsel,a,loc,x,x_yx LL kAA?P  
hj0uv6t.c  
d,all,ux mQo]k  
a/>={mbKi  
nsel,s,loc,y,y_yx H^'*F->BA  
15Yy&9D  
d,all,uy =_.Zv  
s- g[B(  
  iwrdZLE  
JMO"(?  
save,step0,db |W\CV0L2  
G^r^" j  
  Vj~R6  
LB2 2doW  
!指定求解选项 #_|b;cf  
2\EMtR>.M'  
/solu o*5|W9  
|iO2,99i  
nlgeom,on 0r:8ni%cL  
S`"IM?  
nropt,full h'IBVI!P  
X} 8rrC=  
pred,on h2h$UZIv  
VPtA %1  
lnsrch,on @}aK\  
xJc'tT6@  
nsubst,10,50,10 $n(@hT>?  
Yx XDRb\kW  
  <(s+  
3ywBq9FGhp  
!荷载步1,自重应力场 ?$=N!>P#  
IE'OK  
allsel (W*yF2r  
u)
fbR  
esel,s,type,,1,3,2 Z#"6&kv  
NZdQz  
ekill,all HZfcLDrO  
{PYN3\N,  
  YBHmd  
WmOd1  
allsel ]2K>#sn-]  
|D`Zi>lv  
acel,,9.8 `,\WhJ?9  
f8'&(-  
allsel nCXIWLw  

9I^_
n+E  
solve o?/N4$&5l  
]yCmGt+b  
save,step1,db 9Z7o?S";  
}b6ja y  
esel,s,live [4t_ 83  
aViJ?*  
eplot -pa.-@  
h1JG^w$ 5  
  w7w$z_P  
ed>_=i  
!荷载步2,上台阶开挖，应力释放 3#0nus|=S  
"6Ly?'HK  
!提取节点力 Gh42qar`  
jf.ikxm  
/post1 `~pB1sS{  
D@O'8  
esel,s,mat,,3 1*;?uC\  
F!^ Y!Y@H  
nsle,s #Cbn"iYee  
a/`fJY6rR  
nsel,r,ext Hsx`P  
]O&TU X@)  
*get,n,node,,count Z*s/%4On  
qX-Jpi P  
*dim,n_nf,array,n,3 @: %}clZ  
4/Ok/I  
*do,i,1,n B\Rq0N]' M  
%# J8
cB  
*get,n_nf(i,1),node,,num,min ]'2p"A0U  
|Q.?<T:wt=  
nsel,u,,,n_nf(i,1) %Cb8vYz~  

/$I&D}uR`  
*enddo  :jB(!XH  
F N(&3Ull  
!*status,n_nf |$7!u DU8  
 ,u
lTZV  
*do,i,1,n -D{~7&  
?G
.9D`95  
nsel,s,,,n_nf(i,1) stoBjDS  
wQ(ME7t  
fsum KC8A22  
eJ2[=L
'  
*get,n_nf(i,2),fsum,,item,fx /M B0%6m  
SQa.xLU  
*get,n_nf(i,3),fsum,,item,fy h/eKVRGs"  
Tje =vI  
*enddo <NT/+>:2  
VY~WkSi[<  
!*status,n_nf _xUiHX<  
lE=Q(QUr  
parsav,all,002,PARM /c__{?go  
(VwS9:`
  
  1cOp"!  
/EKfL\3  
/solu l|j&w[c[Q0  
`=%[  
antype,,rest *R1x^t+)  
'<6Gz7O  
!杀死上台阶土体单元 !>9*$E |  
2ORWdR.b  
allsel :vX;>SH$p  
w#XE!8`  
esel,s,mat,,3 8
=)Aksu  
H\^5>ccU>V  
ekill,all ^ /:]HG  
[-vd]ob  
!施加等效释放节点力 8>Ervi`  
<~X=6  
parres,,002,PARM NjsP"  
&<.Z4GxS  
esel,s,mat,,3 |K/#2y~  
mxGvhkj  
nsle,s P|_?{1eO2  
>:Q:+R;3o  
nsel,r,ext 6t/})Xv  
sR?_{rQ  
*do,i,1,n E(]yjZ/  
Y6^lKw  
f,n_nf(i,1),fx,0.65*n_nf(i,2) HmRwh  
e`#G
q0}8  
f,n_nf(i,1),fy,0.65*n_nf(i,3) D.R5-  
nV"[WngN  
*enddo [9aaHf@'  
_.Uz!2  
  EzzzH(!j  
n1buE1r?  
!约束死单元自由度 3)42EM'9(  
bLSI\  
allsel p~Dm3^Y  
+apIp(E+  
esel,s,live i!YZF$|  
%aL>n=$  
nsle,s *%uv7G@%N  
>D<nfG<s Z  
nsel,inve dpE\eXoa,  
Mr/^V,rA  
d,all,all G?>~w[#mQR  
>G/>:wwSP.  
  /i DS#l\0  
&v3r#$Hj[  
allsel 2tn%/gf'm  
>,hJ5-9  
solve BQ_\8Qt|  
XD%?'uUQ_  
save,step2,db Fk=_Q LI  
POUB{ba  
esel,s,live e0>@Yp[Kd  
^D oJ='&  
eplot Z0`?  
Mk,8v],-Tj  
  gjyg`%  
kDO6:sjR7  
!荷载步3 ]WyV~Dzz<  
$@8\9Y {  
!删除节点力，激活上台阶支护和锚杆 dA\>z[n=  
!Me
%W3  
allsel rv|k8  
>Z<ym|(T*  
esel,s,mat,,3 "eh
"'Z  
|mY<TWoX  
nsle,s ?R"5 .3  
8*6J\FE<p  
nsel,r,ext SuGlNp>#qm  
'>'h
7F=tY  
fdele,all,all A(;J  
EkWe6m  
  YVu8/D@ o  
~LYKt0/W&  
esel,s,mat,,1,6,5 y%ER51+  
|(XV '-~  
ealive,all K<Ct  
EsA^P2?_+  
  |W*f
6F3  
Q7c_;z_  
allsel !!Mp;h'}-  
=p&6A^  
solve [>Q{70 c[  
J8? 6yd-7  
save,step3,db Q 7B)t;^  
;hd> v&u#  
  gY*Cl1 Iz  
=CRaMjN  
!荷载步4，下台阶开挖，应力释放 t'm]E2/  
S)JZb_  
!提取节点力 JR7~|ov  
jcx/ZR  
/post1 A[+op'>k  
K%Q^2"Eb0  
esel,s,mat,,4 >{Lfrc1  
Mt@K01MI%  
nsle,s #J^p,6  
zL)S,
 
nsel,r,ext !v`q%JW(  
6@bGh|   
*get,n,node,,count  s.GTY@t  
j] M)i:n  
*dim,n_nf,array,n,3 ZpI_/  
2Ni{wg"  
*do,i,1,n  _%i|*  
VFA1p)n  
*get,n_nf(i,1),node,,num,min a
7#Eyw^H{  
0#Rj[J;kh  
nsel,u,,,n_nf(i,1) <|Z0|sel  
zS?i@e $  
*enddo ,EwJg69  
iF61J%3-  
!*status,n_nf tGM)"u-  
`Rj i=k>  
*do,i,1,n Vy-S9=  
Qyd3e O_  
nsel,s,,,n_nf(i,1) /:awPYGH<1  
YhR?*Di  
fsum JBb}{fo~  
"NC(^\l/  
*get,n_nf(i,2),fsum,,item,fx 1`2lTkg  

4uU(t  
*get,n_nf(i,3),fsum,,item,fy Im6ymaf9  
=bv8W <#  
*enddo HT1bsY 0t  
S$muV9z2=  
!*status,n_nf K7e<hdP_#  
8Bhot,u'T  
parsav,all,002,PARM %qja:'k  
s8eiq`6\H}  
  Z][?'^`^!  
u$<FKp;I  
/solu )2rI/=R  
@@ZcW<Y"  
antype,,rest :peBQ{
bj  
b2p<!?  
!杀死下台阶土体单元 R+!2 j  
F<IqKgGz
H  
allsel ]e?*7T]  
1{";u"q  
ealive,all r OB\u|Pg  
<!DOCvd
 
esel,s,mat,,2,3,1 /xsa-F  
xW"J@OiKL  
esel,a,mat,,4 #docBsHX&s  
Mh3zl  
ekill,all Q&M(wnl5  
:VLuI  
!施加等效释放节点力 .fD k5uo  
rD$7;  
parres,,002,PARM QfwGf,0p  
?]h+En5z8  
esel,s,mat,,4 O@E&lP6  
>(%im:_  
nsle,s i1aS2gFi_  
K<+AJ(C  
nsel,r,ext \ 0<e#0-V  
BLMcvK\9  
*do,i,1,n #/1A:ig  
unD8h=Z2  
f,n_nf(i,1),fx,0.65*n_nf(i,2) TU[f"!z^  
o/=K:
5  
f,n_nf(i,1),fy,0.65*n_nf(i,3) o2Pj|u*X  
mYt(`S*q  
*enddo *jA%.F  
Txoc  
  3UrqV`x \  
8eOQRC33  
!约束死单元自由度 UK&E#i  
O8dD
oP\F2  
allsel /!AdX0dx  
I X\&lV  
esel,s,live zq1&MXR)l  
\dufKeiS&a  
nsle,s @X\nY</E#M  
tQ2*kE  
nsel,inve g`J? 2 _]  
8oA6'%.e  
d,all,all hb? |fi  
eTrGFe!8w  
  `5GJ,*{z  
J>Zd75;
U  
allsel uLL#(bhDr  
C: e}}8i  
solve Z|wZyt$$  
xn}'!S2-b  
save,step4,db *+@/:$|U  
bdcuO)3  
esel,s,live 4eIu@ ";!  
8^< -;  
eplot YrZAy5\  
RJtSHiM2  
  by8d18:it  
n]8_]0{qi  
!荷载步5 K=06I  
+;;fw |/  
!删除节点力，激活下台阶支护 zh50
]tX  
zROyG  
allsel R 8Iac[N  
#axRg=d?K  
esel,s,mat,,4 ~{d94o.  

CqrmdWN  
nsle,s \19XDqf8  

cRU.  
nsel,r,ext fJ\Ys;l[j  
N?87Bd  
fdele,all,all A]=?fyPh{'  
n,Ux>L  
  UI;!_C_  
e,1Jxz4QH  
esel,s,mat,,2 <w2Nh eM 3  
GSpS8wWD }  
ealive,all = b)q.2'#  
R9=,T0Y p  
  Pv0OoN*eJ{  
jv_sRV  
allsel sV[|op  
xsAF<:S\  
solve dm,bZHo  
r-Dcc;+=Q  
save,step5,db qRB%G<H  
7g&_`(  
  -,4_ &V  
OQ[>s(`*{  
!后处理 *r9I 1W  
!荷载步1 I;mtyS
 
/post1 bWMM[pnL  
set,1,last f#X`e'1  
esel,s,live z':
>nw  
plnsol,u,sum mX|AptND  
plnsol,u,x x!"!oJG^k  
plnsol,u,y oMMU5sm  
  Bpk%,*$*)  
{nHy!{+qqG  
!荷载步3 |: nuT$(  
set,3,last *xLMs(gg  
!支护内力 :;??!V  
esel,s,type,,1 zlFl{t  
etable,fx_i,smisc,1 J`"1
DlH  
etable,fx_j,smisc,7 88G[XkL$2  
plls,fx_i,fx_j,0.2 dY
r#  
etable,fy_i,smisc,2 ;=uHK'{  
etable,fy_j,smisc,8 !' sDqBZ&7  
plls,fy_i,fy_j,0.2 AKAAb~{  
esel,s,type,,1 Ho"FB|e  
etable,mz_i,smisc,6 0/] @#G2  
etable,mz_j,smisc,12 9"V27"s  
plls,mz_i,mz_j,-0.2 eMh:T@SN  
  7Uj[0Awn  
\t!+]v8f8  
!锚杆内力 jj
$'DZk  
esel,s,type,,3 3:=XU9p)x  
etable,sa,ls,1 K5w22L^=+  
plls,sa,sa,0.06 |AWu0h\keO  
!etable,ybae,lepel,1 rxDule3m  
!plls,ybae,ybae,0.1 }3?M0:  
  0U$6TDtmE  
@H{$,\\  
!应力场 &ul9N)A  
esel,s,live )n0g6  
plnsol,s,1 +d'h20  
plnsol,s,2 %8 4<@f&n]  
plnsol,s,3 {z.}u5N
 
plnsol,s,int G_AAE#r`  
plnsol,eqv A#jiCIc  
  &
"^A  
pr;L~$JW  
  1/#N{rZ  
YHKm{A ]  
!位移场(减去初始位移场) eY&UFe  
esel,s,live MGmtA(  
lcdef,1,1,last wbr"z7}  
lcdef,5,5,last EkTen:{G  
lcase,5 .3HC*E.e  
lcoper,sub,1 P, S9gG9  
plnsol,u,sum y>~KeUC  
plnsol,u,x H_*]Vg  
plnsol,u,y ;j/ur\37  
  7rhpIP2n  
.vT'hu  
  hc[GpZcw,  
?94da4p  
  ~i  &K,  
_$=xa6YA  
/post26 W tzV|e,  
numvar,30 1eb1Lvn  
!拱顶位移 b]Z@zS<8  
nsol,2,13,u,y =,0E3:X^  
!水平收敛 #lct"8  
nsol,3,139,u,x ,#"AW
Q  
nsol,4,1,u,x N!Y'W)i16  
add,5,3,4,,,,,1,-1 JBWiTUk  
!地表沉降 /pyKTZ|  
nsol,11,1621,u,y _k j51=  
nsol,12,2236,u,y Uf\*u$78  
nsol,13,2238,u,y ; 9'*w=V  
nsol,14,2227,u,y 0p[$8SCJ  
nsol,15,2276,u,y UT^t7MY#O  
nsol,16,2278,u,y (bBetX  
nsol,17,2084,u,y nh E!Pk  
  Y<0f1N  
\XB71DUF  
prvar,2,3,4,5 *dKA/.g  
prvar,11,12,13,14 ]AHi$Xx  
prvar,15,16,17
j,G/[V  
  Tzk8y7$[  
 |u$AzI  
  jR/X}XQtY  
-k<.Q=]<t  
  z%;\q$  
2%@j<yS  
  _<3:vyfdC  
1":{$A?OB  
  N?pD"re)6  
aa".d[*1  
  F^Q  
U7ajDw  
  >ueJ+sgH  
pP".?|n  
  3\'.1p  
`*N0 Lbl]  
  h hdn9n  
qKSM*k~  
  |Ec$%
 
r!x^P=f,MJ  
  L)w& f  
sxsM%Gb?H  
  2"i<--Y  
5`z{A  
  U9N}6a=  
A: @=?(lI3  
  %NAz(B  
>?$Ze@  
  XHe=  
@u$oqjK  
  `__CL )N|  
|r /}r,t}  
  K=B[MT#V{2  
dmF<J>[  
  6,c,i;
J_  
2?}(  
  v-Br
)lLv  
+T4<}+n  
  H-rf?R2  
i_=P!%,  
  *2>%>qu  
FS@SC`~(  
  MRJdQCBV  
MA1,;pv6  
  GN~:rdd  
Z-vzq;  
  m' aakq  
Ak9W8Z}  
  G
! 87F/  
4ErDGYg}  
  -}N{'S,Bp  
NGxii$F  
  HV?awc  
h1Q7(8=Eg  
  _5X}&>>lhF  
AN.`tv  
  ^qk$W?pX  
2ag]p  
  }7C{:H2d  
c}{e,t  
  
,-{j.  
VKs$J)6  
  u_Q3v9  
T+~~w'v0  
  >2v_fw  
0[hl&7 Ab@  

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 C&;'Pw9H  

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 vw(};)8  
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