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） 01w}8a(  
finish |V-)3#c  
/clear >(He,o@M  
*afun,deg fx=HKt  
  0zc~!r~  
_z6" C8W  
x_zs=-50 3)*Twqt  
y_zs=30 E}lNb  
x_yx=50 L %20tm  
y_yx=-40 }AGdWt@  
  (@i2a  
`xsU'Wd^<  
num=24 \Xpq=2`  
th_s=0 .azA1@V|  
th_f=180-th_s M _e^KF  
th=(th_f-th_s)/num Qm@v}pD  
  ,V`[;~49  

>
Pwu>  
yx_1_x=0 kWZ/O  
yx_1_y=0 l<-0@(x)  
yx_2_x=0 =z4kK_?F,  
yx_2_y=11.37 x.%x|6G*  
yx_3_x=3.34 <G60R^o  
yx_3_y=0 NR.YeKsBq  
yx_4_x=-3.34 snvixbN
 
yx_4_y=0 Dssecc'  
r_1=5.8 N VB
WF  
r_2=14.4 Evt&N)l!^  
r_3=2.67 uePa4e!  
r_4=2.67 }%Vx2Q  
r_jg_1=8.8 O Ce;8^  
r_jg_2=17.4 {w52]5l  
r_jg_3=5.67 #xNXCBl]O  
r_jg_4=5.67 \QP1jB  
  9-hVlQ~|  
!g7bkA  
!beam3单元厚度（考虑钢纤维、钢拱架提高0.5） ;oivG)hJl  
t1=0.25*1.5 `3'4_@7s9  
!link1单元半径 -+Gd<U$  
r1=12.5e-3 !cA4erBP  
  Uu(FFd~3  
AfXlV-v  
!plane42单元 hM[QR'\QS  
e_r=0.18e9 dU.H9\p  
u_r=0.35 =*=qleC3  
dens_r=1950 Q}|QgN  
c_r=0.18e6 cUD}SOW  
fi_r=23 hx:"'m5  
!beam3单元 ;Y%.m3  
e_c=23e9 BkJNu_{m?  
u_c=0.2 V)3S.*]  
dens_c=2200 =x-@-\m  
!link1单元 vJfj1 f  
e_a=210e9 m$H(l4wB>  
u_a=0.25 p^X \~Yibs  
dens_a=7700 >Ni<itze$i  
  dZ{yNh.]  
8jjq)d4#  
/prep7 ZE4xF8  
!单元类型 Kn4x_9  
et,1,beam3 .?LP$O=  
et,2,plane42,,,2 e
gh_1Wg2a  
keyopt,2,3,2 gQlL0jAV  
et,3,link1  I7} o>{  
  v6*8C
Q+  
BjAmM*k  
!实常数 rF)[ Sed:T  
r,1,t1,t1*t1*t1/12,t1 CSNfLGA
 
r,2,3.14*r1*r1 gFAtIx4  
  xyPz_9  
[fl^1!3{  
!材料属性 u ioBId  
!上台阶支护 /8"9sf*  
mp,ex,1,e_c D/TEx2.=J3  
mp,prxy,1,u_c IrTMZG  
mp,dens,1,dens_c obtXtqew  
!下台阶支护 !F[^?:pK  
mp,ex,2,e_c WN9K*Tt~o&  
mp,prxy,2,u_c /><+[\q4LM  
mp,dens,2,dens_c W>T6Wlxu`6  
!上台阶土体 wC>Xu.Z:  
mp,ex,3,e_r q&0I7OV  
mp,prxy,3,u_r <L>$Y#wU  
mp,dens,3,dens_r 9,>u,  
tb,dp,3 '.1_anE]  
tbdata,1,c_r,fi_r  >q^l  
!下台阶土体 _S3qPPo3l]  
mp,ex,4,e_r pqnZ:'V  
mp,prxy,4,u_r  "?(N  
mp,dens,4,dens_r WbH#@]+DN  
tb,dp,4 |}2X|4&X  
tbdata,1,c_r,fi_r 6ujePi <U  
!围岩 *Rj(~Q/t  
mp,ex,5,e_r ^E= w3g&  
mp,prxy,5,u_r Gk2R:\/Y  
mp,dens,5,dens_r BZ"+ ND9m_  
tb,dp,5 QX>Pni  
tbdata,1,c_r,fi_r fLR\@f  
!锚杆 1k?k{Ri  
mp,ex,6,e_a 9Netnzv%  
mp,prxy,6,u_a Avr2MaY{h  
mp,dens,6,dens_a ,/6 aA7(  
  2m0laJ3p9  
CH4 ~9mmE  
!实体建模 9~6)u=4sS"  
k,1,yx_1_x,yx_1_y (OT&:WwW  
k,2,yx_2_x,yx_2_y KL4vr|i,  
k,3,yx_3_x,yx_3_y Sz#dld Mz  
k,4,yx_4_x,yx_4_y J-)9>~[E<  
k,101,yx_1_x,yx_1_y,10 <{kr5<  
k,102,yx_2_x,yx_2_y,10 ?
/ Cl  
k,103,yx_3_x,yx_3_y,10 jce^Xf  
k,104,yx_4_x,yx_4_y,10 h4lrt  
circle,1,r_1,101 ^*A8 NdaB  
circle,2,r_2,102 4;.y>~z  
circle,3,r_3,103 / +9o?Kxya  
circle,4,r_4,104 WC *e#QP  
lcsl,all /`vn/X^?^  
lsel,s,,,17,22,1 Ql.abU  
lsel,a,,,46,48,1 |)WN%#v  
lsel,a,,,27,28,1 E|>oseR  
lsel,a,,,43 `/\Z{j0_  
lsel,inve ,sln0  
ldele,all,,,1 C)8>_PY[M  
lsel,all YH^h?s  
lcomb,17,18 YNV4'  
lcomb,19,21 {B,r  
lcomb,27,43 L6E8A?>5rD  
lcomb,28,46 i1k#WgvZR  
  qmWn$,ax  
JOvRUDZ  
cm,zh,line K6X}d,g  
  8dYPn+`  
}Rx`
uRx\  
circle,1,r_jg_1,101 Q  
circle,2,r_jg_2,102 K>x+*UPL  
circle,3,r_jg_3,103 ?OFl9%\ V  
circle,4,r_jg_4,104 **!  
cmsel,s,zh,line ~qj09  
lsel,inve (@"5:M  
lcsl,all Kfl#78$d  
lsel,s,,,23,25,2 Ccx
1#^`  
lsel,a,,,18,21,3 'g7eN@Wh.z  
lsel,a,,,26,62,36 L}x,>hbT  
lsel,a,,,24,59,35 !Ey=  
lsel,a,,,33,55,22 3HI-G.]hC  
lsel,a,,,34,58,24 H 6~
6hg  
cmsel,a,zh,line T_=iJ: Q  
lsel,inve "0edk"hk  
ldele,all,,,1 ;LjTsF'  
lsel,all %=GF  
lcomb,23,25 rjLPX  
lcomb,18,21 1*o=I-nOa  
lcomb,33,55 &)y$XsSMW  
lcomb,34,58 sN%#e+(=  
allsel ~qP_1() ?  
  svT
Kt%6X  
[;n/|/m,  
kdele,101,104,1 ~vMdIZ.h  
  .vJlTg  
U'K{>"~1a  
rectng,x_zs,x_yx,y_zs,y_yx (Sd8S`xO  
asbl,all,all ejjL>'G/|%  
  0`D` Je<t  
iF#|Z$g-(  
!利用工作平面切割围岩 /suW{8A(E  
allsel 4`M7 3k0  
wpcsys G!L(K  
wpoff,-1.8*r_jg_1 <*'%Xgm  
wprota,,,-90 ^}PG*h|  
asbw,all <g4
[p^A  
  yy*8Aw}  
k~,({T<  
wpcsys !i{9wI  
wprota,,,-90 ooW;s<6  
asbw,all Or9"T]z  
  7yM"G$  
H/?@UJ5m  
wpcsys b2<((H  
wpoff,1.8*r_jg_1 ^KRe(  
wprota,,,-90 :
U!@  
asbw,all &uMx*TTY  
  #FNSE*Y  
'Jl |-RUd  
wpcsys rUL_=>3  
wpoff,,1.7*r_jg_1 g,61'5\  
wprota,,-90 `EJ.L6j$'  
asbw,all f}%paE"  
  YooPHeQ  
2^;zj0]Rt  
wpcsys kQt#^pO)  
wprota,,-90 ??u*qO:p  
asbw,all %&[=%zc  
  HkL`- c0  
`k]2*$%  
wpcsys 9z9\pXFQ  
wpoff,,-1.4*r_jg_1 SE7mn6,%\  
wprota,,-90 %p t^
?  
asbw,all TEN~3 Ef#  
wpcsys ZCC T  
  :H(wW   
BJNZH#"  
allsel L%Mj{fJ>Wm  
/pnum,line,1 S8Ec.]T  
/pnum,area,1 u"s@eN  
 
k+5l  
Krw'|<  
!锚杆线 2P(6R.8;6  
asel,s,,,17,18,1 $c0<I59&|  
wprota,,-90 f]C`]qg  
wprota,,,-th_s V<&^zIJUR  
*do,i,1,num,1 ~cL)0/j}  
  wprota,,,-th \0,8?S  
  asbw,all ]p-xds#d  
*enddo UrRYK-g  
allsel &rbkw<=j  
  F>lM[Lu#  

s$D"  
!围岩分块，利于划分网格 Q*54!^l+_r  
allsel pt_]&3\e  
lsel,none B{hV|2  
l,26,79 B"Hz)-MW  
asbl,24,all b'1m 9T780  
  ?[!_f$50]P  
9~5LKg7Ac  
lsel,none e,DRQ2AU  
l,28,57 zb,YYE1  
asbl,21,all me+u"G9I;  
  Memb`3  
1/tyne=m  
lsel,none Min{&?a  
l,42,39 l0K_29^  
asbl,16,all [R(dCq>  
  \ !qe@h<  
[U@;EeS  
lsel,none +k{l]-)1  
l,44,40 8O| w(z  
asbl,15,all 7:'5q]9  
  's\rQ-TV  
Sah!|9  
  !%/2^  
n3_|#1Qu  
!划分网格 8'-E>+L   
allsel ZYLPk<<  
lesize,57,,,6,,1 9WT{~PGj  
lsel,s,,,2,4,1 Egi(z9|Pp  
lesize,all,,,12 &~'^;hy=  
!上台阶土体 2= )V"lR\  
asel,s,,,1 qoAJcr2uN  
lsla,s 4Dw| I${O  
csys,1 ?W\KIp\Kn  
lsel,r,loc,x,r_1 ?`3G5at)9f  
lccat,all Mt*eC)~Yx  
mat,3 #Fckev4  
type,2 ?6V U4nK/*  
mshape,0 ]vjMfT%]W  
mshkey,1 Zjn![  
amesh,all %4x,^ K]  
  =l4F/?u]f@  
1B`JvNtd  
asel,s,,,2 TeHxqWx  
lsla,s [H=l#W@  
lsel,r,loc,x,r_1 gg&Dej2{  
lccat,all p?#xd!tc2N  
csys,0 us )NgG  
mat,3 ]T>|Y0|  
type,2 T~naAP  
mshape,0 |]'gd)%S\  
mshkey,1 V>"NVRY  
amesh,all p]Q(Z  
  *qKf!&  
GXwQ )P5]  
!下台阶土体 l'RuzBQr  
allsel "u3 N9  
!aclear,22,23 ~EO=;a_  
lesize,28,,,10 vpP8'f.  
lesize,27,,,10 B&sa|'0U  
lesize,47,,,2 6)1xjE#  
lesize,48,,,2 fO}Y$y\q  
lesize,20,,,2 uWkuw5;  
lesize,22,,,2 q)!G5j3  
lccat,20,47 N6h.zl&04  
lccat,22,48 {W%/?d9m  
mat,4 [(iJj3s!  
type,2 Tl S904'  
mshape,0 r?R!/`f  
mshkey,1 l-q.VY2  
amesh,22,23,1 %iD'2e:  
lsel,s,lccat !$!"$-5  
ldele,all tRXR/;3O  
  TB#oauJm,  
,a\pdEPj  
!支护 eXCH*vZY  
allsel `_E@cZ4  
asel,s,mat,,3,4,1 \SA$:^zO  
lsel,s,ext [p96H)8YU  
lsel,r,loc,y,0,r_jg_1 k7=mxXF  
cm,zh_s,line X`0`A2 n  
mat,1 Ew2ksZ>B]&  
real,1 9m}c2:p  
type,1 'cf8VD  
lmesh,all to3D#9Ep  
 
2@f?yh0  
L7B(abT9e  
allsel 5u
D'Kd$H  
asel,s,mat,,3,4,1 ^:]~6p#  
lsel,s,ext }tPI#[cfK  
lsel,r,loc,y,0,-r_jg_1 g({dD;  
cm,zh_x,line +$D~?sk  
mat,2 ?&"!,  
real,1 ("_tML 8/p  
type,1 "kkZK=}Nv  
lmesh,all r8vF I6J  
  uDG#L6  
E{E%nXR)  
!锚区围岩和锚杆 nX-%qc"  
csys,1 BCw0kq@  
asel,s,loc,x,r_1,r_jg_1 "hXB_73)V  
lsla,s 2w67>w\  
lsel,r,loc,x,(r_1+r_jg_1)/2 &&($LnyA]  
csys,0 >T
wL&la  
cm,mg,line k?ksv+e\
 
mat,6 \bumB<w(]  
real,2 aDE)Nf}  
type,3 bId@V[9  
lesize,all,,,4,1.8  ^6Y:9+  
lmesh,all a[Oi  
mat,5 ^r0mx{i&  
type,2 @G0j/@v  
mshape,0 y3pr(w9A  
mshkey,1 &#qy:  
amesh,all VD-2{em  
  ($Y6hn+  
J(
%kcueb  
!aclear,27,28,1 y1+~IjY  
allsel or..e  
lesize,16,,,4,1.8 ;c;PNihg  
lcomb,24,59 $_NP4V8|z/  
lesize,24,,,7 tS&rR0<OW  
lesize,34,,,7 x@480r  
amap,27,12,16,8,5 kc-v(WIC  
  :
{KoZd  
FT.;}!"l  
lcomb,26,62 m\?H <o0  
lesize,26,,,7 VJ$UpqVm  
lesize,33,,,7 i-_ * 5%A  
amap,28,12,16,10,7 }dO^q-t$3  
  >6"u{Qmr  
s7}46\/U  
!周围围岩 i& ybvTl  
!aclear,all Ye) F{WqZ#  
allsel G!3d!$t  
asel,s,loc,x,-1.8*r_jg_1,1.8*r_jg_1 #OVf2
"  
asel,r,loc,y,0*r_jg_1,1.7*r_jg_1 kZ3w2=x3v  
lsel,s,ext Wf>scl`s  
lsel,u,loc,y,0 p@+r&Mg%W"  
lesize,all,,,6 dSm; e_s  
allsel sZ9VXnz24  
asel,s,loc,x,-1.8*r_jg_1,1.8*r_jg_1 6_h'0~3?`  
asel,r,loc,y,-1.4*r_jg_1,0*r_jg_1 ',P E25Z  
lsel,s,ext GV T[)jS  
lsel,u,loc,y,0 QSq0{  
lesize,all,,,7 #DFfySH)A  
  @>sZ'M2mq  
+>wBGVvS  
lsel,s,,,43,69,26 wA;C
j  
lsel,a,,,19,23,4 P85@G 2  
lsel,a,,,56,58,2 1y($h<  
lsel,a,,,133,134,1 sHQ82uX  
lesize,all,,,9,1.2,1 q:/<^|  
asll,s `c~J&@|  
  O#962\  
HRxA0y=  
csys,1 8Cw+<A*  
lsel,s,loc,x,r_jg_1 kL1StF#p  
lsel,r,loc,y,0*th,6*th 3/q)%Z^=  
lccat,all `gFE/i18  
lsel,s,loc,x,r_jg_1 5g(`U+,*(  
lsel,r,loc,y,6*th,12*th =1'vXPv`  
lccat,all oe{K0.`  
lsel,s,loc,x,r_jg_1 ht1d[  
lsel,r,loc,y,12*th,18*th ^yo~C3r~  
lccat,all Gn8'h TM  
lsel,s,loc,x,r_jg_1 $06[D91'  
lsel,r,loc,y,18*th,24*th lEe<!B$d"  
lccat,all s35`{PR  
csys,0 OW|5IEC  
   jA}b=c  
o6[aP[~F  
mat,5 <yHa[c`L  
type,2 E'O[E=  
mshape,0 *P.Dbb8vn  
mshkey,1 [R~`6  
amesh,all vRQ7=N{3  
lsel,s,lccat ~l@ h  
ldele,all Ghb Jty`  
  QwSYjR:K  
BQ7p<{G  
!其他围岩 U$,W/G}m  
!aclear,all OmR)W'  
asel,s,loc,x,-100*r_jg_1,-1.8*r_jg_1 gx',~  
lsla,s :_f5(N*{5o  
lsel,r,tan1,y,0 KtO|14R:  
lesize,all,,,16,0.5,1 Z/f%$~Ch  
  EDf"1b{PX  
9_  
asel,s,loc,x,1.8*r_jg_1,100*r_jg_1 ;0c -+,  
lsla,s 2`;&Uwt  
lsel,r,tan1,y,0 n+XLZf#  
lesize,all,,,16,0.5,1 #oX8EMqs<  
  34gC[G=  
%HAforH  
asel,s,loc,y,1.7*r_jg_1,100*r_jg_1 Jb (CH4|7  
lsla,all /)<x<7FKW  
lsel,r,tan1,x,0 y`|86` Y  
lesize,all,,,8,0.5,1 {%b*4x0?  
  ;n~-z5)  
(rfR:[JkC2  
asel,s,loc,y,-100*r_jg_1,-1.4*r_jg_1 "h'+!2mf  
lsla,all Lq6R_udp  
lsel,r,tan1,x,0 W:gpcR]>  
lesize,all,,,13,0.5,1 ;#Y'SK  
  gZHuyp(B  
;LXwW(_6d  
allsel :+qd>;yf#  
asel,s,loc,x,-1.8*r_jg_1,1.8*r_jg_1 3Hd~mfO\  
asel,r,loc,y,-1.4*r_jg_1,1.7*r_jg_1 Y*Ra!]62  
asel,inve <(c_[o/  
mat,5 L HW\A8  
type,2 DQ*T2*L  
mshape,0 00-cT9C3  
mshkey,1 TF1,7Qd  
amesh,all  nLD1j  
  w$##GM=Tq  
{gkzo3  
allsel rn9n_)  
nummrg,node Z)^1~
!w0  
nummrg,elem pRys 5/&v  
nummrg,kp $~+(si2  
numcmp,all BH"Op
hE  
  tg%#W`  
31^
Jg  
  /2.}m`5  
*t%Z'
IA  
!施加约束 bpx ^  
allsel rLpfybu  
d2a*xDkv  
nsel,s,loc,x,x_zs $Vp*,oRL  
90[6PSXk  
nsel,a,loc,x,x_yx b$;qtfJG  
#=g1V?D  
d,all,ux [. Db56  
qeUT]* w  
nsel,s,loc,y,y_yx :*} -,{uX  
C==yl"w  
d,all,uy \}Al85  
@u @~gEt  
  0H/)wy2ym  
?:$\ t?e^  
save,step0,db @=sM')f&  
_1,hO?TK  
  n "bii7h  
[eO^C  
!指定求解选项 [} zzG@g,J  
F1)5"7f  
/solu 2Onp{,'}  
4`GOBX1b.y  
nlgeom,on 48IrC_0j  
QdrZi.qKH  
nropt,full %vil~NU  
Uc;~q-??#  
pred,on re~T,PPM  
7tbY>U8  
lnsrch,on )Yu  
4iI4+  
nsubst,10,50,10 V1&qgAy~  

-tZ~&1"  
  (Z0_e&=*  
FS)"MDs  
!荷载步1,自重应力场 '^.`mT'P  
3;RQ\{eM  
allsel o(k{Ed  
'Qh1$X)R7a  
esel,s,type,,1,3,2 ?g9:xgkF ^  
PU,%Y_xR  
ekill,all u4h0s1iI  
>qz#&  
  r~z'QG6v/  
]h?q1   
allsel [{$%9lm  
dEZUK vo  
acel,,9.8 g<N;31:c\  
e\em;GTy  
allsel K9{RU4<  
B[k=6EU8k  
solve Fw S>V2R  
.ht-*  
save,step1,db 0|Xz-Y  
 W,|+Dl  
esel,s,live -.Blj<2ah  
en'"" w  
eplot [j}JCmWY   
9Pb6Z}
 
  pM^ZC  
;I&XG  
!荷载步2,上台阶开挖，应力释放 6O<UW.  
D4b-Y[/"  
!提取节点力 <iA\ZS:  
1ysQvz  
/post1 GsmXcBzDw2  
EV?U !O  
esel,s,mat,,3 ua)jGif  
Sbl=U  
nsle,s CLTkyS)C  
z %Bzf~N9  
nsel,r,ext &s(J:P$!  
vK%*5  
*get,n,node,,count Wqkzj^;"G  

pI:,Lt1B  
*dim,n_nf,array,n,3 ~nTj't2R  
~o>Gm>5!HH  
*do,i,1,n ?=ffv]v|  
Cs_&BSs  
*get,n_nf(i,1),node,,num,min (6.uNLr  
9b&|'BBW  
nsel,u,,,n_nf(i,1) tYXE$i  
AN:yL a!  
*enddo mU]VFPr5  
a}uYv:  
!*status,n_nf ei<0,w[V1{  
n>?D-)g  
*do,i,1,n r\d(*q3B  
`sCn4-$8  
nsel,s,,,n_nf(i,1) x9,jXd  
<sw@P":F  
fsum {"+M%%`*#  
P`ou:M{8  
*get,n_nf(i,2),fsum,,item,fx NJ)Dw`|%|)  
@zC6
`  
*get,n_nf(i,3),fsum,,item,fy (c>g7d<>n  
v
eH
e   
*enddo s/=%kCo  
qXg&E}]:=  
!*status,n_nf h~m,0nGO  
:{
2~s  
parsav,all,002,PARM 'Y/0:)
 
d)emTXB(  
  %rMCiz  
i1|>JM[V  
/solu At"$Cu!k  
!(rAI  
antype,,rest 58Ce>*~  
p_h/hTi  
!杀死上台阶土体单元 0muC4  
1vxRhS&FY  
allsel N(Ru/9!y"  
SfnQW}RGI  
esel,s,mat,,3 aknIrblS\  
7IkPi?&{  
ekill,all *m}8L%<
HT  
H; NV?CD  
!施加等效释放节点力 X58U>4a  
pY`$k#5  
parres,,002,PARM a$"nNmD?  
V6X )L>!xx  
esel,s,mat,,3 dgjK\pH`h  
cvaG[NF  
nsle,s *3H=t$1G}  
Z^:_,aJ?  
nsel,r,ext )A$"COM4  
KGYbPty}  
*do,i,1,n 8u2k-_9  
d 2d-Mk  
f,n_nf(i,1),fx,0.65*n_nf(i,2) kU[hB1D5  
SvT0%2  
f,n_nf(i,1),fy,0.65*n_nf(i,3) @"@|O>KJ  
z.Ic?Wz7  
*enddo z_!IA ] v  
3'Y-~^ml|  
  *O :JECKU  
n@8Y6+7i  
!约束死单元自由度 ryVYY>*(K  
~;3yjO)l?)  
allsel c,xdkiy3  
-K'UXoU1  
esel,s,live (dq_,LI  
-Cs( 3[  
nsle,s NX&dJ 6a  
5rows]EJJl  
nsel,inve XgC^-A w  
rx2)uUbR  
d,all,all "pM>TMAE  
8>9Mh!t}(I  
  ]SCHni_  
}PBme'kP  
allsel ;OlnIxH(W  
8Yh'/,o=L#  
solve S=_u3OH0  
_y~6b{T  
save,step2,db ,c&u\W=p  
lxyTh'  
esel,s,live pUHgjwT'U  
KL'1)G"OH  
eplot A0<g8pv  
= LNU%0m  
  9"S2KT@8  
ij$NTY=u  
!荷载步3 mD'nF1o Ly  
Kk8wlC  
!删除节点力，激活上台阶支护和锚杆 YB"gLv?  
\J+a7N8m,  
allsel
::>|[ND  
|dgiW"tUm  
esel,s,mat,,3 |M;Nq@bRv  
#yoc
hxF_  
nsle,s ~6f/jCluR%  
/x??J4r0  
nsel,r,ext .o/|]d`%  
` IVQ  
fdele,all,all sfX~X/  
TRi'l#m4  
  8g0 #WV  
rRRh-%.RU  
esel,s,mat,,1,6,5 V *@q< rQ  
_<(xjWp 8  
ealive,all nnyT,e%  
L<!h3n  
  ,/?J!W@m  
rr tMd  
allsel |HycBTN#E  
tg\Nm7I  
solve epsRv&LfC  
jlBsm'M<m  
save,step3,db 8xLQ" l+"  
9 Zos;  
  P8YnKyI,.  
{'{}@CuA2  
!荷载步4，下台阶开挖，应力释放 4mDHAR%D  
[)I^v3]U  
!提取节点力 wO,qFY  
jWUrw  
/post1 <.ZIhDiEl  
}rJqMZ]w  
esel,s,mat,,4 X"TL'"?fo  
nOPB*{r|  
nsle,s C1;uAw?\  
~T@E
")uR  
nsel,r,ext k{f1q>gd  
a?y ucA  
*get,n,node,,count &`m.]RV  
D+!T5)>(  
*dim,n_nf,array,n,3 X?haHM#]  
:$G^TD/n  
*do,i,1,n /(~ HHNnh  
|B(,53  
*get,n_nf(i,1),node,,num,min 16Qu{K  
DNmC   
nsel,u,,,n_nf(i,1) TIp\
-  
t%mi#Gh(  
*enddo #X)DFAtb  
~~{lIO)&  
!*status,n_nf r.?dT |A  
@{IX do  
*do,i,1,n YMw,C:a4  
i|h{<X7[  
nsel,s,,,n_nf(i,1) vVBWhY]  
.Yk}iHcW.  
fsum ;ab[YMkH  
q}_8iDO6  
*get,n_nf(i,2),fsum,,item,fx CRo@+p10  
w_U#z(W
3l  
*get,n_nf(i,3),fsum,,item,fy qg j;E=7  
(1=@.srAzK  
*enddo NkUY_rKPb  
Z84w9y7O<  
!*status,n_nf LiEEQ  
):Fg {7b]n  
parsav,all,002,PARM D Z~036  
w
%wVB/(  
  hzAuj0-A  
s {*rBX8N  
/solu "A[.7w  
jXx~5  
antype,,rest %5L~&W}^"  
g#P]72TQ  
!杀死下台阶土体单元 |3k r*#  
.P8m%$'N  
allsel Mprn7=I{Tg  
LI-ewea  
ealive,all \ $TM=Ykj  
ZXhNn<  
esel,s,mat,,2,3,1 g1XpERsSEV  
#pW
y%U  
esel,a,mat,,4 fm#7}Y  
+v%+E{F$+  
ekill,all oJVdFE  
zq5N@dF  
!施加等效释放节点力 nVpDjUpN  
A/zAB3  
parres,,002,PARM ?z.  Z_A&  
\`8$bpW[nS  
esel,s,mat,,4 7yG%E  
VVF9X(^rQ  
nsle,s Bz{"K  
#H
y9;Q  
nsel,r,ext ht\_YiDg3  
U7LCd+Z5X  
*do,i,1,n `MT.<5H  
Cf 202pF3y  
f,n_nf(i,1),fx,0.65*n_nf(i,2) P/S,dhs(  
(;Bh7Ft  
f,n_nf(i,1),fy,0.65*n_nf(i,3) {
_>XsB  
1< b~="  
*enddo 87pu\(,'  
9AWP`~l`  
  :MYLap&L&  
bz1`f>%l  
!约束死单元自由度 r"|do2s  
&/Gf@

[  
allsel $LBgBH&z  
Nn0j}ZI)1  
esel,s,live "MPS&OK  
n1x3q/~  
nsle,s 0#5
&*  
^Ux.s Q  
nsel,inve Ga^:y=m  
z3^gufOkQ  
d,all,all 6XAofN/5f  
}L`Z<h*H  
  [IyC}lSW^-  
e
iA$) rzy  
allsel  ?nJv f  
B<|Vm.D  
solve Zirp_[KZ%  
5H
B*  
save,step4,db }Oe4wEYN)  
\^cXmyQ<%  
esel,s,live
zGL.+@  
`/G9*tIR8g  
eplot ?>R(;B|ER  
Ea[SS@'R  
  Rto/-I0l  
V2yX;u  
!荷载步5 sVlQ5M oo(  
M?m@o1\;W  
!删除节点力，激活下台阶支护 B90fUK2g  
>qMzQw2
 
allsel ErQGVE;zk  
-LFk7a  
esel,s,mat,,4 /*6[Itm_h  
A0ZU
#"'/  
nsle,s +wEsfYW  
*aYuuRx  
nsel,r,ext OJFWm
Z(X  
1O2V!?P  
fdele,all,all ^= kr`5  
%4wHiCOg  
  T0o0_R  
y :QnK0  
esel,s,mat,,2 b$/7rVH!  
n&Q0V.  
ealive,all b-#oE{(\'  
I 'ha=PeVn  
  \Jwc[R&x  
FZ FPzH  
allsel 7Zft]C?|@  
nx!+:P ,  
solve >+%0|
6VSb  
4`sW_ ks  
save,step5,db B;<zA' 1  
tt&{f <*  
  eV9,G8  
\h}sA  
!后处理 %mS>v|  
!荷载步1 bhKe"#m|S  
/post1 94lz?-j  
set,1,last 6anH#=(  
esel,s,live OP``+z>  
plnsol,u,sum 8%Ak  
plnsol,u,x 0.~s>xXp  
plnsol,u,y *"V) hI5  
  N.V5>2  
L7yEgYB  
!荷载步3 i@=(Y~tD`  
set,3,last \O*W/9 +  
!支护内力 :?gp}.  
esel,s,type,,1 h\6 t\_^\  
etable,fx_i,smisc,1 )SaMfP1=v  
etable,fx_j,smisc,7 8wCB}qC  
plls,fx_i,fx_j,0.2 CSzu$Hnq  
etable,fy_i,smisc,2 j9f QV  
etable,fy_j,smisc,8 Wm!cjGK  
plls,fy_i,fy_j,0.2 m>DJ w7<  
esel,s,type,,1 0J.]`kR  
etable,mz_i,smisc,6 fKkS_c 2  
etable,mz_j,smisc,12 #_'^oGz`  
plls,mz_i,mz_j,-0.2 C jz(-018  
  2t3)$\ylQp  
G#.q%Up  
!锚杆内力 ;(Z9.  
esel,s,type,,3 gZL,xX  
etable,sa,ls,1 {afIr1j/m  
plls,sa,sa,0.06 i&L!?6 5-f  
!etable,ybae,lepel,1 b}ODc]3  
!plls,ybae,ybae,0.1 C)&BtiUN/  
  O~5*X f  
xE6hE'rh.O  
!应力场 X(;WY^i!  
esel,s,live we33GMxHl`  
plnsol,s,1 >%c>R'~h  
plnsol,s,2 76cT}l&.h8  
plnsol,s,3 3oPyh $*  
plnsol,s,int dSE"G>l8  
plnsol,eqv }Rq{9j,%  
  K#x|/b'5d  

CH0Nkf  
  I$ ?.9&.&  
3#{Al[jq  
!位移场(减去初始位移场) @h%Nn)QBq  
esel,s,live )D7/[zb^  
lcdef,1,1,last 3 5p)e c  
lcdef,5,5,last $g }aH(vf  
lcase,5 YN7JJJ/~T  
lcoper,sub,1 .|KBQMI  
plnsol,u,sum "|/Q5*L  
plnsol,u,x ~6#O5plKc  
plnsol,u,y p<\7" SB=  
  d_Z?i#r0l  
&[5pR60  
  n"Wlfd0  
(J.k\d   
  2I_~]X53[  
7DWGYvv[  
/post26 ~L"?C  
numvar,30 !WTL:dk  
!拱顶位移 Fzy5k?R  
nsol,2,13,u,y ,#j'~-5  
!水平收敛 4i+H(d n  
nsol,3,139,u,x e_IRF+>  
nsol,4,1,u,x T1(*dVU?  
add,5,3,4,,,,,1,-1 yVyh\u\  
!地表沉降 "Ve9\$_s  
nsol,11,1621,u,y sY&Z/Y  
nsol,12,2236,u,y 9`7>"[=P  
nsol,13,2238,u,y cT nC  
nsol,14,2227,u,y E^m;Ab=  
nsol,15,2276,u,y &W*^&0AV  
nsol,16,2278,u,y U,Fyi6{~  
nsol,17,2084,u,y /])P{"v$^  
  4-oaq'//BT  
0CK3jdZ+X  
prvar,2,3,4,5 T_fM\jdI  
prvar,11,12,13,14 9u%(9Ae  
prvar,15,16,17 dQy K4T  
  %RzCJxT
 
rbrh;\<jM  
  wv^n#  
-0P9|;h5  
  ^p3W}D  
&"^U=f@v  
  dd*p_4;  
QSOG(}w  
  #tA/)Jvi  
@I#uv|=N  
  LX#gc.c  
gmZ] E45  
  "6Z(0 iu:{  
I8uFMP  
  -s]@8VJA"  
Pk;YM}  
  )T^x
Dx  
,(NN)Oj  
  e(Rbq8D  
~yJJ00%  
  ~EU\\;1Rmq  
Nt/hF>"7  
  pj7v{H+  
DKF '*  
  hw=~%f;  
I moxg+u  
  B:Hr{%O  
me-uPm  
  BAtjYPX'w  
K|I<kA~!H  
  Zn[ppsz|  
<,\U,jU_  
  9dWz3b1[]  
dg_w$#  
  ?hViOh$.  
gU1Pb]]  
  egVKAR-  
}
Eh &
'  
  Z58{YCY  
zjOOEvi  
  #/{3qPN?@  
D}Sww5ZmP  
  Fu5c_"!  
-gUp/#l1  
  <~uzKs0  
8|zOgn{  
  _n_()at)  
ZB`d&!W>  
  <y?=;54a  
Ej1<T,w_  
  Qxk& J  
?'_6M4UKa  
  ;#:AM;  
_,/~P)  
  Nd&UWk^  
MdmN7>  
  B{*{9!(l9  
v*%52_
 
  w 5?D]u  
>Fs/Wet  
  Qj*.Z4ue  
[FLR&=.(  
  ambr}+}  
h9/fD5  
  ~9E_L?TW*  
i1!1'T8  

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 6+IhI?lI=  

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 @Dh2@2`>  
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