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） K p~x  
finish Qf6Vj,~N  
/clear :,]V
03  
*afun,deg aS-rRL|\L  
  A8dIL5  
R'uM7,7  
x_zs=-50 Wg3y y8vIW  
y_zs=30 `Q' 0
l},  
x_yx=50 5BN!uUkm+  
y_yx=-40 ggzg,~V  
  hwSn?bkw  
LIT{rR#8  
num=24 wtu WzHrF  
th_s=0 :1PT`:Y  
th_f=180-th_s 1I<D `H%  
th=(th_f-th_s)/num N3!x7J7A  
  7D@O:yO  
hdXdz aNS  
yx_1_x=0 F)z]QJOw  
yx_1_y=0 ?MHVkGD  
yx_2_x=0 `p|{(g'  
yx_2_y=11.37 -WWa`,:  
yx_3_x=3.34 <=W;z=$!Bb  
yx_3_y=0 T&H[JQ/h  
yx_4_x=-3.34 WSz#g2a  
yx_4_y=0 xrFFmQ<_W  
r_1=5.8 Q"h/o"-h  
r_2=14.4 2,{m>fF  
r_3=2.67 ypSW9n  
r_4=2.67 Mm;kB/1  
r_jg_1=8.8 Jlj=FA`  
r_jg_2=17.4 %oJ_,m_(  
r_jg_3=5.67 CE=&ZHt9  
r_jg_4=5.67 4onRO!G,  
  }Dc0 Y  
b
%IRIi&,  
!beam3单元厚度（考虑钢纤维、钢拱架提高0.5） WZOi,  
t1=0.25*1.5 p-POg%|&<  
!link1单元半径 n,!PyJ  
r1=12.5e-3 @T0F }(k  
  82n
Q]  
K?+iu|$&  
!plane42单元 Y6~/H  
e_r=0.18e9 "94e-Nx  
u_r=0.35 kAsYh4[  
dens_r=1950 P:eY>~m<;  
c_r=0.18e6 hX#y7m  
fi_r=23 sOhQu>gN  
!beam3单元 \DI%/(?  
e_c=23e9 %5?qS`/c(  
u_c=0.2 ae`*0wbv  
dens_c=2200 rvgArFf}]  
!link1单元 2MS1<VKZ@  
e_a=210e9 9tDo5 29  
u_a=0.25 ]vo&NE  
dens_a=7700 7s+3^'  
  +&6R(7XC  
hsr,a{B%$  
/prep7 LmE%`qNg  
!单元类型 vq-Tq>  
et,1,beam3 ]:uJ&xUar  
et,2,plane42,,,2 `md)|PSU  
keyopt,2,3,2 xE`uFHuS}  
et,3,link1 u(iEuF;7  
  +F=j1*'&  
F)Oe
;z6  
!实常数 Z7a~M3VnZ  
r,1,t1,t1*t1*t1/12,t1 KAVe~j"  
r,2,3.14*r1*r1 5v >0$Y{  
  q,w8ca4~y  
$lz\te  
!材料属性 *8{PoD   
!上台阶支护 ByqB4Hv2  
mp,ex,1,e_c 'id]<<F  
mp,prxy,1,u_c puEuv6F  
mp,dens,1,dens_c P(D0ru  
!下台阶支护 *{5p/}p  
mp,ex,2,e_c iPgewjx  
mp,prxy,2,u_c 29p
`G1n  
mp,dens,2,dens_c \X1?,gV_  
!上台阶土体 Q}zAC2@L  
mp,ex,3,e_r 7VQ|3`!<  
mp,prxy,3,u_r 5i `q  
mp,dens,3,dens_r }i0(^"SoXZ  
tb,dp,3 !A!}j.s  
tbdata,1,c_r,fi_r f"My;K$l;  
!下台阶土体 "|ZC2Zu<  
mp,ex,4,e_r |+K3\b  
mp,prxy,4,u_r M*li;  
mp,dens,4,dens_r /D2 cY>  
tb,dp,4 }QrBN:a$(  
tbdata,1,c_r,fi_r ~IrrX,mp:  
!围岩 L@xag-b i  
mp,ex,5,e_r -]HPDN,OB  
mp,prxy,5,u_r j:ze5FA+  
mp,dens,5,dens_r H <7r  
tb,dp,5  ntK#7(U'  
tbdata,1,c_r,fi_r 0wL-Ak#v  
!锚杆 6^_:N1@  
mp,ex,6,e_a I.#V/{J  
mp,prxy,6,u_a n3Uw6gLD  
mp,dens,6,dens_a %zDh07VT\  
  aly1=j  
^~\cx75D  
!实体建模 >.'rN>B+  
k,1,yx_1_x,yx_1_y c4H5[LPF  
k,2,yx_2_x,yx_2_y _nW{Q-nh  
k,3,yx_3_x,yx_3_y 'e @`HG  
k,4,yx_4_x,yx_4_y {BB#Bh[  
k,101,yx_1_x,yx_1_y,10 0*7N=  
k,102,yx_2_x,yx_2_y,10 9HJrMX  
k,103,yx_3_x,yx_3_y,10 K`}8fU  
k,104,yx_4_x,yx_4_y,10 36MqEUjyB  
circle,1,r_1,101 4L<h% 'Zn  
circle,2,r_2,102 za$v I?ux  
circle,3,r_3,103 _ zM/>Qa  
circle,4,r_4,104 {-?^j{O0.  
lcsl,all Nmu;+{19M  
lsel,s,,,17,22,1 YB?yi( "yL  
lsel,a,,,46,48,1 N<XS-XB,  
lsel,a,,,27,28,1 v',%   
lsel,a,,,43 R<wPO-dX  
lsel,inve Ed6k7  
ldele,all,,,1 e\o>(is  
lsel,all -36pkC 6 \  
lcomb,17,18 LEu_RU?  
lcomb,19,21 %#7NCdk;S  
lcomb,27,43 (|Zah1k
&]  
lcomb,28,46 e0rh~@E  
  Qy< ~{6V  
).IB{+  
cm,zh,line %2)B.qTp&  
  Q)vf>LwC2S  
)o4B^kq  
circle,1,r_jg_1,101 vSyR% j  
circle,2,r_jg_2,102 FZdZGK  
circle,3,r_jg_3,103 pCOtk'n  
circle,4,r_jg_4,104 UqsJ44QEZ  
cmsel,s,zh,line W_JFe(=3,  
lsel,inve 1dsMmD[O  
lcsl,all $Sg5xkV,a  
lsel,s,,,23,25,2 E(%_aFx>/  
lsel,a,,,18,21,3 @ ={Hx$zL  
lsel,a,,,26,62,36 j_w"HiNBA  
lsel,a,,,24,59,35 i6Zsn#Z7)  
lsel,a,,,33,55,22 cviPCjM  
lsel,a,,,34,58,24 kF,_o/Jc  
cmsel,a,zh,line Cf&.hod  
lsel,inve v2ab  
ldele,all,,,1 QY)hMo=|o8  
lsel,all
Wycood*  
lcomb,23,25 Nj~3FL  
lcomb,18,21  AW[_k%  
lcomb,33,55 '+8`3['  
lcomb,34,58 4n}tDHvd  
allsel <,:p?36  
  RH^!7W*  
u(kacQ7  
kdele,101,104,1 ',>Pz+XKc  
  -(ev68'}W  
YoU|)6Of  
rectng,x_zs,x_yx,y_zs,y_yx %t.L;G  
asbl,all,all cZVVJUF  
  ^"  
]x12_+  
!利用工作平面切割围岩 '=eG[#gy  
allsel 4 C7z6VWg  
wpcsys LN!e_b  
wpoff,-1.8*r_jg_1 n\/ JNzd3  
wprota,,,-90 o$4xi
nK  
asbw,all )P|&o%E  
  P84uEDY  
>5%;NI5 G  
wpcsys z&R #j  
wprota,,,-90 D=>[~u3H  
asbw,all h!yI(cY  
  %qI.Qw$  

,\]`X7r  
wpcsys JI5%fU%O#n  
wpoff,1.8*r_jg_1 k/lU]~PE  
wprota,,,-90 [v%j?  
asbw,all ()\=(n!J  
  v4
$"{W;'  

8gIf  
wpcsys f$2DV:wuC  
wpoff,,1.7*r_jg_1 3=@lJ?Ym  
wprota,,-90 ].(l^W  
asbw,all ZYMacTeJjg  
  q$ZmR]p  
O/{X:Ja{  
wpcsys D~^P}_e.  
wprota,,-90 9^4BqAWYrV  
asbw,all $F#eD0|  
  #uc9eh}CWO  
AP:(/@K|  
wpcsys a7~%( L@r  
wpoff,,-1.4*r_jg_1 e]!`Cl-f80  
wprota,,-90 !XtZI3Xu  
asbw,all &[Zg;r   
wpcsys ;"R1>tw3)  
  K6BP~@H_D  
1+Z@4;fk  
allsel cOa){&u  
/pnum,line,1 le*'GgU#  
/pnum,area,1 vB<2f*U  
  8hZYZ /T  
V1]QuQ{&s  
!锚杆线 Sy0-tK4  
asel,s,,,17,18,1 X?B\+dq  
wprota,,-90 ]iq2_{q  
wprota,,,-th_s 9!>Ks8'.d  
*do,i,1,num,1 \GP0FdpV  
  wprota,,,-th
yV4rS6=  
  asbw,all ey/=\@[p  
*enddo P/ XO5`  
allsel k x?m "a%  
  fvNj5Vq:  
# 9@K  
!围岩分块，利于划分网格 lK2=[%,~  
allsel ZR[6-  
lsel,none j7>a^W  
l,26,79 X{BS]   
asbl,24,all *U}cj A:ZN  
  QNcbl8@  
Ij{ K\{y  
lsel,none +YFAZv7`  
l,28,57 cAQ_/>  
asbl,21,all #*~3gMI{=  
  =3
H*%  
k;~*8i=%,\  
lsel,none l2h1CtAU  
l,42,39 t}X+P`Ovq  
asbl,16,all 12TX_0  
  }
b/Xui9Q  
v1aE[Q  
lsel,none x1'4njTV$  
l,44,40 4R&e5!  
asbl,15,all twr-+rm2  
  6$5?%ZLJ  
0/4"Jh$t  
  cGUsao  
2,^U8/  
!划分网格 i[O{M`Z%  
allsel 14S_HwX  
lesize,57,,,6,,1 {=Z _L?j  
lsel,s,,,2,4,1 x T{s%wE  
lesize,all,,,12 z0-[ RGg  
!上台阶土体 !;U;5e=0  
asel,s,,,1 *a2-
Vte  
lsla,s k+%c8w 9  
csys,1 gnWEsA\!  
lsel,r,loc,x,r_1 G]k+0&X  
lccat,all 6Z>G%yK  
mat,3 3cSP1=$*  
type,2 *Me&>"N"  
mshape,0 HU47S  
mshkey,1 Nq>"vEq)  
amesh,all zk^uS#  
  +zINnX  
^$x1~}D  
asel,s,,,2 M'sq{K9  
lsla,s "wj~KbT
}&  
lsel,r,loc,x,r_1 H9Dw#.em  
lccat,all ~gA^tc3G  
csys,0 W6!o=()  
mat,3 "x4}FQ  
type,2 T%TfkQ__d  
mshape,0
]x1o
(~  
mshkey,1 SFkB,)Z N  
amesh,all $X ]t}
=  
  {osadXdC  
uMb[0-5  
!下台阶土体 >mUSRf4  
allsel lDVw2J'p  
!aclear,22,23 }Q-%ij2  
lesize,28,,,10 Gg# 1k TK  
lesize,27,,,10 J_}Rsp ED  
lesize,47,,,2 iVZX  
lesize,48,,,2 o!Y61S(  
lesize,20,,,2 \L:+k `  
lesize,22,,,2 Sh;Z\nj  
lccat,20,47 u_'XUJ32!  
lccat,22,48 B{2WvPX~q  
mat,4 eEZZ0NNe;  
type,2 ,UATT]>  
mshape,0 iNG =x  
mshkey,1 V:h3F7  
amesh,22,23,1 Rd|M)  
lsel,s,lccat G"|c_qX  
ldele,all -40s  
 
::
k cV'*  
9w}_CCj3  
!支护 X(qs]
:  
allsel rvG0aqO`  
asel,s,mat,,3,4,1 N+CcWs!E  
lsel,s,ext z"$huE>P6  
lsel,r,loc,y,0,r_jg_1 >)8<d3m  
cm,zh_s,line = 6.i.(L_S  
mat,1 WJBw
o%J  
real,1 z:W|GDD1  
type,1 ,#8H9<O9t  
lmesh,all .-?Txkwb  
  kB]?9
5>Wx  
`^'0__<M  
allsel 3!Cab/T  
asel,s,mat,,3,4,1 ot; ]?M  
lsel,s,ext SS7C|*-
Zd  
lsel,r,loc,y,0,-r_jg_1 $m
[*)0/  
cm,zh_x,line UYkuz  
mat,2 U`kO<ztk  
real,1 gI{56Z  
type,1 Sp./*h\}  
lmesh,all "Ax#x  
  p.RSH$]  
wY{!gQ  
!锚区围岩和锚杆 5z@QAQ  
csys,1 I3gl+)Q  
asel,s,loc,x,r_1,r_jg_1 e"oTlB  
lsla,s IiU\}<O  
lsel,r,loc,x,(r_1+r_jg_1)/2 EfX\"y  
csys,0 lfvt9!SJ+/  
cm,mg,line "C0?s7Y  
mat,6 Y5c,O>T5Y  
real,2 +*RaX (&  
type,3 CvhVV"n  
lesize,all,,,4,1.8 'oKen!?A  
lmesh,all u9nJ;:  
mat,5 |I[/Fl:  
type,2 a\m_Q{:  
mshape,0 >``sM=Wat  
mshkey,1 BG|
m5f  
amesh,all RW{y.WhB  
  s&hJ[$i  
s\+| ql  
!aclear,27,28,1 ziDvDu=  
allsel GP>\3@>  
lesize,16,,,4,1.8 = N&5]Z  
lcomb,24,59 *+OS;R1<  
lesize,24,,,7 |`ya+/ff+  
lesize,34,,,7 =yF]#>Ah  
amap,27,12,16,8,5 {V,aCr  
  {Qi J-[q  
|\zzOfaO  
lcomb,26,62 l1bkhA b  
lesize,26,,,7 Y~xo=v(  
lesize,33,,,7 \sBXS.  
amap,28,12,16,10,7 N5[^W`Qf  
  Um}f7^fp^l  
1=Z!ZY}}e  
!周围围岩 3Ccy %;  
!aclear,all 7}:+Yx
 
allsel y'aK92pF:  
asel,s,loc,x,-1.8*r_jg_1,1.8*r_jg_1 },n?  
asel,r,loc,y,0*r_jg_1,1.7*r_jg_1 Xh}S_/9}5  
lsel,s,ext lZAXDxhnT  
lsel,u,loc,y,0 d-3.7nJ:  
lesize,all,,,6 80zpRU"  
allsel _tUh*"e&  
asel,s,loc,x,-1.8*r_jg_1,1.8*r_jg_1 V&*|%,q  
asel,r,loc,y,-1.4*r_jg_1,0*r_jg_1 {xAd>fGG+y  
lsel,s,ext d^=9YRc  
lsel,u,loc,y,0 Ul_5"3ze  
lesize,all,,,7 lD^c_b  
  -MRX@a^1  
@Jx1n Q^  
lsel,s,,,43,69,26 IRGcE&m  
lsel,a,,,19,23,4 5
cGQ`l  
lsel,a,,,56,58,2 6hMKAk  
lsel,a,,,133,134,1 -"NK"nb  
lesize,all,,,9,1.2,1 #c!rx%8I  
asll,s Oa2\\I  
  +Xp1=2Mq  
2x>7>;>  
csys,1 G6QD`ED  
lsel,s,loc,x,r_jg_1 +h@.P B^`~  
lsel,r,loc,y,0*th,6*th |1GOm=GNK  
lccat,all lEg
jv,  
lsel,s,loc,x,r_jg_1 $xT9e  
lsel,r,loc,y,6*th,12*th `OfD^Q=  
lccat,all SJ91(K  
lsel,s,loc,x,r_jg_1 "OwK-  
lsel,r,loc,y,12*th,18*th |Fz ^(US  
lccat,all [^Bjmw[7  
lsel,s,loc,x,r_jg_1 QChncIqc  
lsel,r,loc,y,18*th,24*th l?QA;9_R'  
lccat,all d~AL4~}  
csys,0 )s,LFIy<A  
  "fr{:'HX  
lb$_$+@Vr  
mat,5 ,z<1:
st]<  
type,2 &|j0GP&  
mshape,0 5 w(nttYH  
mshkey,1 s
`ZP2"`f  
amesh,all iciKjXJ:  
lsel,s,lccat {,i-V57-h  
ldele,all tKS[  
  _RzFh  
C6EGM/m8  
!其他围岩 dQ:F5|p  
!aclear,all &<x.D]FA]  
asel,s,loc,x,-100*r_jg_1,-1.8*r_jg_1 D Qz+t  
lsla,s c<,LE@V  
lsel,r,tan1,y,0 _1Q6FI5iR  
lesize,all,,,16,0.5,1 NT0n[o^  
  ~4pP( JP  
8\"Gs z  
asel,s,loc,x,1.8*r_jg_1,100*r_jg_1 ;>>n#8
`  
lsla,s 6I: 6+n  
lsel,r,tan1,y,0 WW.@&#S5  
lesize,all,,,16,0.5,1 9/!1J  
  U(0FL6sPC  
tAE(`ow/Ur  
asel,s,loc,y,1.7*r_jg_1,100*r_jg_1 jz`3xFy *]  
lsla,all n\)1Bz  
lsel,r,tan1,x,0 PW|=I
PS  
lesize,all,,,8,0.5,1 7nNNc[d*=  
  ~Th,<w*o  

?m5EXe  
asel,s,loc,y,-100*r_jg_1,-1.4*r_jg_1 gROK4'j6y  
lsla,all ;W+8X-B  
lsel,r,tan1,x,0 Q5ff&CE  
lesize,all,,,13,0.5,1 9Vqy<7i1  
  aW*k,\:e  
'da 'W
ZG  
allsel =6qTz3t  
asel,s,loc,x,-1.8*r_jg_1,1.8*r_jg_1 (8aj`> y  
asel,r,loc,y,-1.4*r_jg_1,1.7*r_jg_1 }% f7O  
asel,inve r<vy6  
mat,5 R)BXN~dQ  
type,2 gyD;kn\CP  
mshape,0 i(pHJP:a:  
mshkey,1 )l$}plT4  
amesh,all $'I&u  
  F|{uA/P{  
8q%y(e  
allsel 1cv~_jFh  
nummrg,node gs;^SRE I  
nummrg,elem ymyzbE  
nummrg,kp 9Q^cE\j  
numcmp,all 5L:-Xr{
 
  ,% QhS5e  
^P^%Q)QXl  
  zPND$3&'  
SOq:!Qt
  
!施加约束 W^H3=hZ  
allsel *2u~5Kc<  
!b7"K|  
nsel,s,loc,x,x_zs /zt M'  
zxx\jpBBk  
nsel,a,loc,x,x_yx xI1{Wo*2C}  
c\2rKqFD8  
d,all,ux n8F~!|lQ0  
k'PvTWR  
nsel,s,loc,y,y_yx Lj(cCtb)  
s:7/\h  
d,all,uy Jn^b}bk t  
&}[P{53sr  
  C6[W/,eS  
&n )MGg1%  
save,step0,db &:g:7l]g  
n Syq}Y3  
  #kASy 2t  
V0v,s^\H  
!指定求解选项 @U18Dj[  
i4,p
\rE0  
/solu BH1h2OEe#  
/
n_s"[I4  
nlgeom,on -z~!%4a  
?/"|tuQMW  
nropt,full l>}f{az-T  
<BED&j!qvP  
pred,on t$z[ja=  
5\MC5us3  
lnsrch,on vo`&  
'"fJA/O  
nsubst,10,50,10 v8*)^-Fx  
oDV6[e  
  ;o3gR4u_L  
_yv#v_Z  
!荷载步1,自重应力场 c%C6d97q  
.Zczya  
allsel <kdlXS>J.  
3}<U'%sd  
esel,s,type,,1,3,2 [p9v#\G; [  
W\k8f+Ke  
ekill,all `,-mXxTNT  
=&}_bd/]  
  3{$7tck,  
-p&u=  
allsel o]4\Geg$  
OQ&N]P2p  
acel,,9.8 ^"X.aksA  
\jtA8o%n  
allsel Os@b8V 8,A  
Fs(PVN  
solve nf/?7~3?[  
b/'c h  
save,step1,db ZrTB%  
X+aQ 7^"s  
esel,s,live \]V:>=ry>  
C~B ]@xxK)  
eplot GYfOwV!zB  
[|OII!"  
  teg5g|*  
HCs^?s8Pp  
!荷载步2,上台阶开挖，应力释放 +QU>D:l  
Sp80xV_B  
!提取节点力 Lj3o-@\*j  
h6 {vbYj  
/post1  /ooGyF  

>\Dy  
esel,s,mat,,3 0cq@lT6  
-!Myw&*\V  
nsle,s Kd
`(^  
J+`aj8_B  
nsel,r,ext ixu*@{
<Z(  
y|}~"^+T  
*get,n,node,,count !k)6r6  
yov~'S9  
*dim,n_nf,array,n,3 '\I(n|\  
172G  
*do,i,1,n eo0-aHs  
P9bM+@5e  
*get,n_nf(i,1),node,,num,min $V(]z`b&  
q++r\d^{  
nsel,u,,,n_nf(i,1) 2K91E}  
v.Ba  
*enddo jW\:+Taq  
;7lON-@BI  
!*status,n_nf [yXmnrxA  
^-_*@e*JE  
*do,i,1,n TVD~Ix  
sllT1%?  
nsel,s,,,n_nf(i,1) 'w+]kt-  
=\oH= f  
fsum
v_!6S|  
z%YNZ^d  
*get,n_nf(i,2),fsum,,item,fx B$_4ul\)  
KGy3#r;Q
 
*get,n_nf(i,3),fsum,,item,fy G%erh}0~  
,Z@#( =f  
*enddo ( 2HM"Pd  
g#J aw|N  
!*status,n_nf KdR4<qVV}  
h=7q;-@7  
parsav,all,002,PARM 5l6/5  
qNQ54#
 
  ST*h{:u&A  
);gY8UL^  
/solu 
Y<xqws  
S/'0czDMW  
antype,,rest a;HAuy`M x  
!%G]~  
!杀死上台阶土体单元 7Jf~Bn  
j,M$l mR')  
allsel %e E^Y<@g  
|h]V9=  
esel,s,mat,,3 tK%ie
\  
fjRVYOG#  
ekill,all OUv<a`0  
!g
|O.mt  
!施加等效释放节点力 
b/'bhE=  
UX)GA[WI  
parres,,002,PARM _Je4&KU  
}%_|k^t  
esel,s,mat,,3 o+a=  
~rb0G*R>  
nsle,s
+` Md5.w  
?F"o+]i+^  
nsel,r,ext 7ftn gBv?  
QH/py  
*do,i,1,n GJ,&$@8)  
3f7zW3F  
f,n_nf(i,1),fx,0.65*n_nf(i,2) J/je/PC  
&h334N|4{  
f,n_nf(i,1),fy,0.65*n_nf(i,3) ,X?/FAcb
 
r
Vz.Ws#  
*enddo 9F/I",EA  
u\*9\
G  
  4[gmA  
+0pI}a\  
!约束死单元自由度 BsQ;`2  
[3m\~JtS  
allsel 68tyWd}  
4D?h}U /  
esel,s,live +U oNJ   
o<Zlm)"%1
 
nsle,s | &X<-  
;kgP:n  
nsel,inve 8
rsc@]W  
_?c.m*)A  
d,all,all axC|,8~tq  
,;g%/6X  
  P@7>R7
gS  
P(D>4/f3"  
allsel rnIjpc F  
LZykc c9g  
solve OyTK,i<n  
aCG rS{  
save,step2,db +4?Lwp'q  
{iD/0q  
esel,s,live C >*z^6Gz  
tu -a`h_NJ  
eplot ZJ/528Ju  
?v2_7x&  
  C]ss'  
b"I#\;Ym  
!荷载步3 2 2v"?*  
cgb>Naa<  
!删除节点力，激活上台阶支护和锚杆 mfraw2H  
$C[z]}iOi  
allsel r[L.TX3Ah=  
sVFO&|
L  
esel,s,mat,,3 W:r[o%B  
A!lZyG!3  
nsle,s .(@=L1C<}J  
C>Ik ;  
nsel,r,ext 7hk)I`o65  
c^r8
<KlI9  
fdele,all,all
z$1RD)TQB  
a~_9BM41T  
  8+'}`  
[DaAvN^0A  
esel,s,mat,,1,6,5 Q0
J1"*P0  
^#_gk uyd!  
ealive,all m%|\AZBA#  
HWjJ.;k}a  
  ^z *0  
uKJ:)oyaCP  
allsel 4$Ai!a  
q<09]i  
solve SyL"Bmi  
jX7K-L  
save,step3,db # &v4c  
KXPCkNIN!  
  i2qN 0?n  
*l_a=[<[  
!荷载步4，下台阶开挖，应力释放 '}hSh  
\RDN_Z  
!提取节点力 u3h(EAH>  
3qWrSziD  
/post1 ,cxqr3 o  
(qAF2&  
esel,s,mat,,4 $JFjR@j  
FWW4n_74  
nsle,s 0)dpU1B#M  
:|j[{;asY  
nsel,r,ext ~?/7:S  
s\*p|vc  
*get,n,node,,count $xu2ZBK  
| R,dsBd  
*dim,n_nf,array,n,3 PF4[;ES'  
Il=6t
  
*do,i,1,n 2"6L\8hd2  
>{^_]phlb  
*get,n_nf(i,1),node,,num,min !.R-|<2|6  
}u^bTR?3  
nsel,u,,,n_nf(i,1) #]Vw$X_S  
`gl?y;xC  
*enddo yCjc5d|tT  
e#}t am  
!*status,n_nf Q=Q
+*oog  
30h[&
Oc  
*do,i,1,n +k=*AQt^8  
8r(Vz  
nsel,s,,,n_nf(i,1) lO@-*m$  
Vz mlKV
E  
fsum ]yOM  
r`"_D%kc  
*get,n_nf(i,2),fsum,,item,fx ev&l=(hY  
Rxy|Ag/I;V  
*get,n_nf(i,3),fsum,,item,fy kH 9k<{  
}wf8y  
*enddo sX?arI=_U  
S1r{2s&  
!*status,n_nf '&CZ%&(Gw  
0hS&4nW  
parsav,all,002,PARM N<#J!0w  
k7Nx#%xx  
  oypLE=H  
LsR<r1KDJ  
/solu 2[w9#6ly  
{A}T^q!m]  
antype,,rest <(E)M@2  
(s'xO~p  
!杀死下台阶土体单元 P0UR{tK  
caEIE0H~  
allsel 9^Xndo]y  
+9HU&gQ3  
ealive,all U'jmgHq  
&wNr2PHd#  
esel,s,mat,,2,3,1 cJSNV*<  
za6 hyd^  
esel,a,mat,,4 R655@|RT  
R/{h4/+vJ  
ekill,all X[J<OTj`$  
eGMw:H  
!施加等效释放节点力 U:E:"  
<c{RY.1[  
parres,,002,PARM +S:(cz80V  
#$Z|)i]w  
esel,s,mat,,4 94F9f^ L  
j%KLp4J/e  
nsle,s QO)Q%K,  
16YJQ ue  
nsel,r,ext &Fl^&&1C  
zTP3JOe(  
*do,i,1,n 6;GL>))'  
Oav^BhUO  
f,n_nf(i,1),fx,0.65*n_nf(i,2) INrUvD/*  
T
UiXE~8=  
f,n_nf(i,1),fy,0.65*n_nf(i,3) :(Feg2c  
-C5Qh&~W  
*enddo SD6xi\8  
w8(qiU  
  _~DFZt@T  
('xu2 ;<  
!约束死单元自由度 928szUo:  
h2u>CXD  
allsel r
j*4ZA?  
g0^%X9s  
esel,s,live G)?O!(_  
0QDm3V0n  
nsle,s "@E1^
  
Db= iJ68  
nsel,inve k"V3FXC)  
%u43Pj  
d,all,all >"S'R9t  
.c+RFX@0  
  LeY\{w  
HT5G HkT  
allsel 56AaviEC  
ab' f:  
solve V2'(}k  
K,^{|5'3q  
save,step4,db (6?pBdZ  
VzMoWD;  
esel,s,live jpaY:fcF  
'UT 4x9&z  
eplot Y'Jb@l`$-  
^^%sPtp  
  ~^IS{
1  
VD.p"F(]  
!荷载步5 !w98[BE7  
+tOBt("5/  
!删除节点力，激活下台阶支护 s%J|r{F6  
abCcZ<=|b  
allsel ?4_^}B9  
:*6tbUp  
esel,s,mat,,4 l<{]%=Qg  
Zcz)FP#  
nsle,s xZL`<3?  
HH2*12e  
nsel,r,ext Lqbu]  
W9Bl'e  
fdele,all,all oyJ/Oe {  
<<w $Ur  
  t[
F tIj6  
vBQ5-00YY=  
esel,s,mat,,2 2,;+)  
+*d,non6v  
ealive,all pH?VM&x  
?G
j$$IAe  
  3b{8c8N^  
&H,j .~a&l  
allsel Hv<%_t_/  
aM3%Mx?w  
solve f| 3`8JU  

OtF{=7  
save,step5,db r&xqsZ%R  
yK0Q,   
  EUe2<G  
{`KgyCW:  
!后处理 pR&cdORsP  
!荷载步1 3.Qf^p  
/post1 ~7b
'4\  
set,1,last s+tS4E?  
esel,s,live I1&Z@[  
plnsol,u,sum m^O:k"+!  
plnsol,u,x McxJ C<  
plnsol,u,y hn.9j"  
  |RwD]2H  
CjOaw$s  
!荷载步3 B8|=P&L7N  
set,3,last &.+[~2  
!支护内力 vP3Fb;  
esel,s,type,,1 l`gRw4/$  
etable,fx_i,smisc,1 #'^p-Jdm  
etable,fx_j,smisc,7 IL}pVa00{n  
plls,fx_i,fx_j,0.2 Q9 kKk  
etable,fy_i,smisc,2 ^;NM'Z  
etable,fy_j,smisc,8 1
B6Go  
plls,fy_i,fy_j,0.2 ;MCv  
esel,s,type,,1 <hdR:k@#  
etable,mz_i,smisc,6 I4  Tc&b  
etable,mz_j,smisc,12 \"_;rJ{!aE  
plls,mz_i,mz_j,-0.2 RXt`y62yK  
  } ~=53$+  
ZHICpL  
!锚杆内力 +sE81B  
esel,s,type,,3 ?9v!UT&#  
etable,sa,ls,1 zScV 9,H1  
plls,sa,sa,0.06 h^~eTi;c]Q  
!etable,ybae,lepel,1 Otn,(j;u  
!plls,ybae,ybae,0.1 k^]+I%?Q  
  T6Ue\Sp'  
_xAdvr' W  
!应力场 mv SNKS  
esel,s,live KHcfP7  
plnsol,s,1 ^P:9iu)+]~  
plnsol,s,2 |vTirZP  
plnsol,s,3 .-`7Av+7  
plnsol,s,int Rr4r[g#  
plnsol,eqv s3_i5,y  
  Z=R>7~H  
Trbgg  
  =d7lrx+z  
11X-X  
!位移场(减去初始位移场) y$*Tbzp  
esel,s,live &>@nW!n u  
lcdef,1,1,last /%Rz`}  
lcdef,5,5,last g*- K!X6l  
lcase,5 z mrk`o~  
lcoper,sub,1 =:6Y<ftC  
plnsol,u,sum &
]pW##  
plnsol,u,x -q(,}/Xf  
plnsol,u,y @XDU!<N  
  ;TM
H.E,h:  
R7x
4v  
  `8xe2
=Ub  
2y ~]Uo  
  eAu3,qoM  
#R305  
/post26 3r+v
pyu  
numvar,30 =o{zw+|% %  
!拱顶位移 ',kYZay  
nsol,2,13,u,y vj[ .`fY  
!水平收敛 $62ospR^Y  
nsol,3,139,u,x 9j:?s;B  
nsol,4,1,u,x GZXUB0W\@)  
add,5,3,4,,,,,1,-1 l K}('7\  
!地表沉降 L;fhJ~r  
nsol,11,1621,u,y +X cB5S>  
nsol,12,2236,u,y q^([ & +  
nsol,13,2238,u,y K}`.?6O  
nsol,14,2227,u,y kIrME:  
nsol,15,2276,u,y qK.8^{b  
nsol,16,2278,u,y jf*M}Q1jHE  
nsol,17,2084,u,y zg)Z2?K|;u  
  t \DS}3pv  
e]uk}#4  
prvar,2,3,4,5 w;}P<K
 
prvar,11,12,13,14 ztgSd8GGE  
prvar,15,16,17 yew9bn0a=  
  B\KvKT|\  
3UslVj1u  
  1f~unb\Gg  
6}n_r}kNR  
  i)+@'!6  
]*%0CDY6`N  
  wcsUb9(  
# T$^{/J  
  Ls5|4%+&  
3)atqM)i  
  %:N5k+}  
~-A5h(  
  yG
Zb  
,D+pGxbr   
  g>/,},jv[x  
/XS}<!)%  
  $w)y
Q %  
Rl.3p<sX  
  E2LpQNvN%g  
<[8at6;  
  ?bmP<(N5/  
T.`EDluG  
  .N5}JUj  
c:>&Bg&,6T  
  Ad9'q!_en  
F.c,FR2  
  w%S\)wjS  
}/SbmW8(1  
  a7%5Qg9B;  
~>k<I:BtrT  
  ,wlFn  
n0>#?ek12  
  9y>dDNM\<  
)
f*&}SV  
  $*H_0wQc  
+]Po!bN@@  
  CS:j->  
L'H'E,  
  1bYc^(z0  
] RN&s  
  iNe;h|  
^0pd- n@pn  
  VI74{='=  
aVNRhnM  
  *q=pv8&*s  
|k^'}n  
  eL0U5>#  

ht(RX  
  =n cu#T]  
8l~]}2LAs  
  ltwX-
  
Ha[Bf*  
  brl(7_2  
4sP0oe[h  
  Xg^`fRg =T  
UP58Cln*  
  )c^Rc9e/  
8uP,#D<wZ  
  K;k_MA310  
Cf91#%:cN  
  b" 1a7  
r.lH@}i%n  
  }cn46L%/  
VY<$~9a&1  
  9]c2ub7  
g1@zk$  

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 p7et>;WRx  

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 MB7UI8  
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