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） g$^I/OK?
 
finish B<!WAw+  
/clear zTW)SX_O  
*afun,deg hZUnNQ  
  *5q_fO  
2A(IsUtqO:  
x_zs=-50 (x1 #_~  
y_zs=30 DNGj81'c  
x_yx=50 hs?cV)hDS  
y_yx=-40 1aS66TS3  
  :\IZ-  
3?uah'D5  
num=24 vhL/L?NB$  
th_s=0 O%m>4OdH  
th_f=180-th_s 7qEc9S@
 
th=(th_f-th_s)/num  ^9 Pae
)  
  f6JC>Np  
!xz{X?  
yx_1_x=0 k'PNfx\K  
yx_1_y=0 /(?,S{]  
yx_2_x=0 *s6(1S  
yx_2_y=11.37 VZCCMh-  
yx_3_x=3.34 7Lx=VX#]q  
yx_3_y=0 4nU+Wj?T  
yx_4_x=-3.34 l]F)]>AE  
yx_4_y=0 U%l<48@8  
r_1=5.8 hDD]Kc;G^1  
r_2=14.4 %Z{ 7*jtE  
r_3=2.67 DUWSY?^c  
r_4=2.67 57`9{.HB  
r_jg_1=8.8 !"s~dL,7  
r_jg_2=17.4 {:ZsUnzm  
r_jg_3=5.67 M1_1(LSU  
r_jg_4=5.67 FSA"U9 w<  
  3AcCa>
 
Mo0pN\A}h  
!beam3单元厚度（考虑钢纤维、钢拱架提高0.5） D:fLQ8a  
t1=0.25*1.5 k*!f@ M  
!link1单元半径 #GIjU1-  
r1=12.5e-3 Z l
R2  
  w?"s6L3  
V[avV*;3i  
!plane42单元
baz~luM  
e_r=0.18e9 o`~%}3  
u_r=0.35 ;)'
  
dens_r=1950 2M*84oh8P  
c_r=0.18e6 'FwNQzzt  
fi_r=23 7"s8G7  
!beam3单元 uM@ve(8\  
e_c=23e9 G&dz<f
 
u_c=0.2 0%;y'd**Ck  
dens_c=2200 ^8{:RiN6e~  
!link1单元 6 u}c543  
e_a=210e9 +|6 u 0&R^  
u_a=0.25 >f-*D25f%  
dens_a=7700 fe+2U|y  
  7|^5E*8/  
7R=A]@  
/prep7 Ue!~|:  
!单元类型 nx|b9W<  
et,1,beam3 t+2,;G  
et,2,plane42,,,2 n--w
-1  
keyopt,2,3,2 }D*5PV%d  
et,3,link1 "cx#6Bo|  
  S*S@a4lV7  
<XH,kI(%  
!实常数 YHfk; FI  
r,1,t1,t1*t1*t1/12,t1 <a)L5<#  
r,2,3.14*r1*r1 eWU@@$9  
  TUM7(-,9  
Usf7 AS=  
!材料属性 Nj$h/P  
!上台阶支护 \@F!h8e4  
mp,ex,1,e_c ["SD'  
mp,prxy,1,u_c 'h{| ]  
mp,dens,1,dens_c y({EF~w  
!下台阶支护 %617f=(E?!  
mp,ex,2,e_c _>(qQ-Px  
mp,prxy,2,u_c X$9 "dL  
mp,dens,2,dens_c |5#iPw_wMY  
!上台阶土体 &ngG_y8}&  
mp,ex,3,e_r k/.a yLq  
mp,prxy,3,u_r oh.8WlI  
mp,dens,3,dens_r xOBzT&  
tb,dp,3 G*W54[  
tbdata,1,c_r,fi_r ibv.M=  
!下台阶土体 :WAFBK/x  
mp,ex,4,e_r H*vd  
mp,prxy,4,u_r O%p+P<J  
mp,dens,4,dens_r F92et<y.  
tb,dp,4 5<mGG;F  
tbdata,1,c_r,fi_r [hXnw'Im/  
!围岩 z-`-0@/A$  
mp,ex,5,e_r IT0 [;eqR  
mp,prxy,5,u_r GCv*a[8?n  
mp,dens,5,dens_r \4"01:u'  
tb,dp,5 q+cx.Rc#  
tbdata,1,c_r,fi_r Uq:CM6q\  
!锚杆 uYAMW{AT  
mp,ex,6,e_a (cdtUE8  
mp,prxy,6,u_a fSw6nEXn  
mp,dens,6,dens_a taqmtXU=(  
  8 CCA}lOG  
be+tAp`  
!实体建模 CINC1Ll_24  
k,1,yx_1_x,yx_1_y Z Ne(sg~G  
k,2,yx_2_x,yx_2_y 6/l{e)rX2o  
k,3,yx_3_x,yx_3_y =SpD6 9-H  
k,4,yx_4_x,yx_4_y >SaT?k1E  
k,101,yx_1_x,yx_1_y,10 X'.*I])  
k,102,yx_2_x,yx_2_y,10 Y(Q!OeC  
k,103,yx_3_x,yx_3_y,10 q !Nb-O{  
k,104,yx_4_x,yx_4_y,10 OpxJiu=W  
circle,1,r_1,101 GcC
MCR3  
circle,2,r_2,102 hVdPO  
circle,3,r_3,103 P= nu&$;  
circle,4,r_4,104 UwVc!Lys  
lcsl,all ]2@g 5H}M  
lsel,s,,,17,22,1 W~2T/~M  
lsel,a,,,46,48,1 3p#BEH<re  
lsel,a,,,27,28,1 q.
Vcb!*$  
lsel,a,,,43 $\vTiS'  
lsel,inve Q4QF_um  
ldele,all,,,1 {B)-+0 6  
lsel,all W B7gY\Y&M  
lcomb,17,18 UQ.DKUg  
lcomb,19,21 M\)(_I)V=  
lcomb,27,43 hWfC"0  
lcomb,28,46 #/2W RN1L  
  -efB8)A  
XS`=8FQ  
cm,zh,line N!YjMx)P  
  MfK}DEJK,  
_p,1m[&M  
circle,1,r_jg_1,101 0mYKzJi  
circle,2,r_jg_2,102 |!\5nix3A>  
circle,3,r_jg_3,103 jR@J1IR<  
circle,4,r_jg_4,104 z3(:a'  
cmsel,s,zh,line 9t o2V  
lsel,inve rLJjK$_x  
lcsl,all Olltu"u  
lsel,s,,,23,25,2 +nm?+F  
lsel,a,,,18,21,3 x5"F`T>Y  
lsel,a,,,26,62,36 \p{$9e;8yT  
lsel,a,,,24,59,35 RAi]9`*7  
lsel,a,,,33,55,22 2/.I6IbL  
lsel,a,,,34,58,24 1^^9'/  
cmsel,a,zh,line RZ GD5`n  
lsel,inve #S
*cFnd  
ldele,all,,,1 XpoEZ|0  
lsel,all %xhA2  
lcomb,23,25 MWn+
e  
lcomb,18,21 dBM> ;S;v  
lcomb,33,55 @&}~r  
lcomb,34,58 j6r.HYX!  
allsel 8w L%(p  
  I>(-&YbC  
8 rA'd  
kdele,101,104,1 xe9V'wICp(  
  3W.5[;}  
#Oq~ZV|<l  
rectng,x_zs,x_yx,y_zs,y_yx JF-ew"o<E  
asbl,all,all 1zlBkK  
  Q|i
`s=|  
tk~<tqMq  
!利用工作平面切割围岩 Lzy Ix!S  
allsel X2S:"0?7  
wpcsys m5\/7 VC  
wpoff,-1.8*r_jg_1 bbAJ5EqL  
wprota,,,-90 :+$/B N:iO  
asbw,all y-=YXqj  
  /I
@Dv?  
#F25,:hY  
wpcsys }S}9Pm,:  
wprota,,,-90 xa$p,_W:'  
asbw,all Mi2lBEu,  
  X+;{&Efrl  
uZkh.0yB  
wpcsys ^rIe"Kx  
wpoff,1.8*r_jg_1 &#DKB#.2  
wprota,,,-90 I%gDqfdL  
asbw,all VMgO1-F  
  IPEJ7n49  
aOK,Mm:iO  
wpcsys O\ph!?L  
wpoff,,1.7*r_jg_1 z2Kvp"-}  
wprota,,-90 NI33lp$V  
asbw,all !Ng~;2GoA  
   <6[P5>  
^yp`<=  
wpcsys z2DjYTm[~  
wprota,,-90 i)mQ?Y#o  
asbw,all _1U7@v:<@  
  $<v{$UOh  
|"o/GUI~  
wpcsys NkL>ru!b9  
wpoff,,-1.4*r_jg_1 Ld$e -dB  
wprota,,-90 J~(M%] &k^  
asbw,all oH]"F  
wpcsys $ITh)#Nj  
  J4>k9~q  
yjB.-o('  
allsel ]] Jg%}o  
/pnum,line,1 DqbU$jt`  
/pnum,area,1 .Q$/\E  
  8CN~o|uN  
?TEdGe\*  
!锚杆线 #Ss lH  
asel,s,,,17,18,1 3 V{&o,6  
wprota,,-90 gaa;PX  
wprota,,,-th_s {((|IvP`  
*do,i,1,num,1 %MUh_63bB  
  wprota,,,-th aFtL_# U  
  asbw,all EhK5<v}  
*enddo -naoM  
allsel jI~GRk  
  /FW{>N1  
Sz3Tp5b  
!围岩分块，利于划分网格 U5pg<xI  
allsel } D0Y8  
lsel,none siK:?A@4D  
l,26,79 [r;hF  
asbl,24,all fkWTO"f-  
  J sc`^a%`'  
A.>TD
=Nz  
lsel,none mjXO}q7  
l,28,57 F` "bMS  
asbl,21,all @>4=}z_e  
  aH+n]J] =)  
N9jSiRJ  
lsel,none z*BGaSX %  
l,42,39 aK4ZH}XHE"  
asbl,16,all pG0Ca](  
  ~LufHbr  
;JAb8dyS2  
lsel,none , \ 6*fXc  
l,44,40 })^%>yLfc|  
asbl,15,all SXx;-Ws  
  M@?,nzs K  
3Z-N*bhC  
  ?K/N{GK%{  
`(6g87h  
!划分网格 dPO|x+N,  
allsel jg+q{ ^  
lesize,57,,,6,,1 `ot<BwxJ  
lsel,s,,,2,4,1 }"o,j>IP  
lesize,all,,,12 xXn2M*g  
!上台阶土体 />
[X k  
asel,s,,,1 <|R`N)AV;  
lsla,s 7PG|e#  
csys,1 Hb|y`Ok  
lsel,r,loc,x,r_1 fjwUh>[ }  
lccat,all ,)](h+zl_6  
mat,3 pJ;4rrSK  
type,2 [G>U>[u|  
mshape,0 |\iJ6m;a  
mshkey,1 .L'eVLQe  
amesh,all $TR#-q  
  ?)i`)mu'  
R<FW?z*  
asel,s,,,2 ^,WXvOy  
lsla,s +Oa+G.;)o4  
lsel,r,loc,x,r_1 _|qs-USA  
lccat,all }!n90 9L  
csys,0 Mw9;O6  
mat,3 [S#QGB19  
type,2 1Z| {3W  
mshape,0 >UDb:N[  
mshkey,1 gW(7jFl  
amesh,all :jUu_s}  
  t!JD]j>q
 
-&3mOn& (1  
!下台阶土体 >wJt# ZB  
allsel =abBD   
!aclear,22,23
ZXL  
lesize,28,,,10 3D*vNVI  
lesize,27,,,10 [yf&]0  
lesize,47,,,2 .Bb86Y=3  
lesize,48,,,2 g?=|kp  
lesize,20,,,2 |uRZT3bGyj  
lesize,22,,,2 P@pJ^5Jf  
lccat,20,47 "Oj2B|:s&  
lccat,22,48 ,[t>N>10TH  
mat,4 Q\k|pg?  
type,2 v#WD$9QWs  
mshape,0 p:@JCsH=  
mshkey,1 B9Y*'hmI  
amesh,22,23,1 PShluhY  
lsel,s,lccat Y9_
OkcW)  
ldele,all _8eN^oc%  
  ji
:E  
sUEvL(%nY  
!支护 p?qW;1  
allsel !3 j@gi2  
asel,s,mat,,3,4,1 3Sclr/t  
lsel,s,ext pXBlTZf  
lsel,r,loc,y,0,r_jg_1 E,g5[s@  
cm,zh_s,line 2\, h "W(  
mat,1 vh">Z4  
real,1 "FfIq;  
type,1 :L'U>)k  
lmesh,all =p29}^@@t  
  /UAcN1K!B  
D^jyG6Ch  
allsel ;*=MI/"N  
asel,s,mat,,3,4,1 Sx|)GTJJ|-  
lsel,s,ext ~w9.}   
lsel,r,loc,y,0,-r_jg_1 +K"8Q'&t  
cm,zh_x,line ;;;{<GEQ  
mat,2 g9K7_T #W  
real,1 +rcDA|  
type,1 /ig'p53jL  
lmesh,all U~1jmxE  
  1j":j%9M  
>t Ll|O+  
!锚区围岩和锚杆 z=/xv},  
csys,1 N@>o:(08  
asel,s,loc,x,r_1,r_jg_1 Z;4pI@u  
lsla,s w,qYT-R  
lsel,r,loc,x,(r_1+r_jg_1)/2 k5ZkD+0Jo  
csys,0 }:f \!b  
cm,mg,line _(.,<R5  
mat,6 |
r%
lJmBB  
real,2 0z1UF{{  
type,3 xHo iu$i6  
lesize,all,,,4,1.8 k),!%6\(  
lmesh,all &hri4p/  
mat,5 Q@"mL  
type,2 ~!A*@aC  
mshape,0 0X'2d  
mshkey,1 E`aAPk_y  
amesh,all ;\[el<Y)s  
  t3b64J[A{  
pg:1AAhT[  
!aclear,27,28,1 f~{@(g&Gl  
allsel Fo86WP}  
lesize,16,,,4,1.8 y%4G[Dz  
lcomb,24,59 nL]-]n;  
lesize,24,,,7 Jx(`.*$  
lesize,34,,,7 pcl'!8&7  
amap,27,12,16,8,5 {u4=*>?G  
  '4J];Nj0  
s)<^YASg  
lcomb,26,62 X \GB:#:X  
lesize,26,,,7 T~"T%r  
lesize,33,,,7 Z+?V10$  
amap,28,12,16,10,7 e6JT|>9A7  
  9u&q{I  
n0*a.  
!周围围岩 _J+p[=[L  
!aclear,all K)!Nf.r$9  
allsel 
13v#  
asel,s,loc,x,-1.8*r_jg_1,1.8*r_jg_1 >nA6w$  
asel,r,loc,y,0*r_jg_1,1.7*r_jg_1 uv$t>_^  
lsel,s,ext @+(TM5Ub  
lsel,u,loc,y,0 ? pkg1F7  
lesize,all,,,6 d
D{{G:V  
allsel ~Vf+@_G8`  
asel,s,loc,x,-1.8*r_jg_1,1.8*r_jg_1 @cz\'v6E  
asel,r,loc,y,-1.4*r_jg_1,0*r_jg_1 3+` <2TP  
lsel,s,ext a$K.Or}  
lsel,u,loc,y,0 "spAYk
\  
lesize,all,,,7 5C&]YT3)  
  u(92y]3,  
nC;2wQ6aO  
lsel,s,,,43,69,26 JDA:)[;  
lsel,a,,,19,23,4 X;D"}X4(E  
lsel,a,,,56,58,2 p[Yja y+  
lsel,a,,,133,134,1 Yo$NE  
lesize,all,,,9,1.2,1 @ a?^2X^  
asll,s ; M%n=+[O  
  Kf!8PR
$  
0-!K@#$>=  
csys,1 ~=xS\@UY =  
lsel,s,loc,x,r_jg_1 +o94w^'^$b  
lsel,r,loc,y,0*th,6*th /18VQ  
lccat,all )QO"1#zg@c  
lsel,s,loc,x,r_jg_1 PpF"n[j  
lsel,r,loc,y,6*th,12*th 3xU in  
lccat,all v2tKk^6`(i  
lsel,s,loc,x,r_jg_1 ]l.qp5eQ  
lsel,r,loc,y,12*th,18*th 4gRt^T-?  
lccat,all k@
i+gV%  
lsel,s,loc,x,r_jg_1 RO10$1IW.2  
lsel,r,loc,y,18*th,24*th @=kDaPme92  
lccat,all *'q6#\#.  
csys,0 (&y~\t]H  
  PIxd'B*MF  
)n&@`>vm  
mat,5 !0+!%Nr>J  
type,2 Spt]<~  
mshape,0 ;#F7Fp*U  
mshkey,1 f6d:5 X_  
amesh,all ?'L3B4  
lsel,s,lccat vUa&9Y  
ldele,all ~c*$w O\  
  5`?'}_[Yj  
8ezdU"  
!其他围岩 DL:wiQ  
!aclear,all 2G9sKg,kL  
asel,s,loc,x,-100*r_jg_1,-1.8*r_jg_1 B-`,h pp  
lsla,s ?h*Ngb
j>  
lsel,r,tan1,y,0 ^Cm9[1p  
lesize,all,,,16,0.5,1 A^9RGz4=  
  2kS]:4)T  
%1Pn;bUU!  
asel,s,loc,x,1.8*r_jg_1,100*r_jg_1 yS)73s/MrY  
lsla,s !qjIhZi  
lsel,r,tan1,y,0 V7\@g  
lesize,all,,,16,0.5,1 M],}.l  
  ">LX>uYmX-  
Hi{1C"%  
asel,s,loc,y,1.7*r_jg_1,100*r_jg_1 1aQR9zg%  
lsla,all (E.,kcAJ  
lsel,r,tan1,x,0 %Gk?f=e  
lesize,all,,,8,0.5,1 rnV\O L  
  6AW{qU6  
}#3'72  
asel,s,loc,y,-100*r_jg_1,-1.4*r_jg_1 Eoo[)V#x{  
lsla,all $B3<"  
lsel,r,tan1,x,0 ~
VqDh*0  
lesize,all,,,13,0.5,1 |9X$@R  
  wx,yx3c (  
9]DMHA@  
allsel L9Gxqw  
asel,s,loc,x,-1.8*r_jg_1,1.8*r_jg_1 r?l7_aBv3  
asel,r,loc,y,-1.4*r_jg_1,1.7*r_jg_1 OE
=]/([  
asel,inve D0f.XWd  
mat,5 &1:_+  
type,2 V&75n.L  
mshape,0 4)i(`/U  
mshkey,1 j
~)GZV  
amesh,all x?unE@?\S  
  :"pA0oB  
5[py{Gq  
allsel ,iQRf@#W_b  
nummrg,node +UGWTO\#ha  
nummrg,elem N7b+GqYpF>  
nummrg,kp O DLRzk(  
numcmp,all e{<r<]/j
 
  bZB7t`C5  
'p{N5eM  
  1oSrhUTy  
{d%% nK~  
!施加约束 $%3"@$  
allsel *b@YoQe3!  
JQtBt2  
nsel,s,loc,x,x_zs 4%(\y"T  
tf5h/:  
nsel,a,loc,x,x_yx [A.ix}3mm  
mEUdJvSG(  
d,all,ux e/p2| 4;  
3wQUNv0z  
nsel,s,loc,y,y_yx 0F495'*A  
2{sx"/k\A  
d,all,uy !&n'1gJ)kd  
Z"T#"FDIr  
  yX'f"
*  
yG`J3++ S  
save,step0,db uV@#;c4  
#nv =x&g  
  >)&]Ss5J  
("7rjQjRz  
!指定求解选项 TI9]v(  
_7#9nJ3|  
/solu %%dQIlF  
{H5a.+-(bE  
nlgeom,on aU)NbESu  
~_ 8X%uty  
nropt,full =y$|2(6  
$z>L $,c>  
pred,on %}nNwuJ  
2;z~xR  
lnsrch,on A=(<g";m  
aBN^J_  
nsubst,10,50,10 VT;Vm3\  
~rN:4Q]/  
  d*e
0/#s  
~KW|<n4m  
!荷载步1,自重应力场 ?Bdhn{_  
v%=@_`Ht  
allsel U>,E]'  
0^L>J"o  
esel,s,type,,1,3,2 ka^sOC+Y  
/ehmy(zL  
ekill,all m@z.H;  
^J TrytIB  
  YA:7^-Bv  
ey~5DY7  
allsel i`Tp +e@a>  
Lcx)wof  
acel,,9.8 w'/Mn+  
xxsax/h  
allsel K>tubLYh  
7l%]/`Y-  
solve "\x<Zg;  
DLWG0$#!  
save,step1,db r^m8kYezQ  
zv^km5by  
esel,s,live `k 5'nnyP  
>+P5Zm(_  
eplot d3nMeAI AO  
QQnpy.`:/  
  8)wxc1  
<;R}dlBASW  
!荷载步2,上台阶开挖，应力释放 m!qbQMXn  
*" ("^_x\  
!提取节点力 (2o
P=9m  
L>&o_bzp  
/post1 -Dx_:k|k  
Qrnc;H9)  
esel,s,mat,,3 \x,q(npHi  
GbLuXU  
nsle,s w Bi'KS  
|A'y|/)#Z  
nsel,r,ext $hn=MOMc  
?OYK'p.  
*get,n,node,,count xejQ!MAB  
<:,m  
*dim,n_nf,array,n,3 7Ntt#C;]U  
/s'7[bSv  
*do,i,1,n !6R;fD#^s  
)H'SU_YU  
*get,n_nf(i,1),node,,num,min "zn<\z$l  
+4N7 _Y  
nsel,u,,,n_nf(i,1) (&W&1KT  
AO R{Xm  
*enddo UcHe"mn  
VDyQv^=#  
!*status,n_nf .}wVM`81z  
k`5jy~;  
*do,i,1,n q,
8TOn  
mO6rj=L^  
nsel,s,,,n_nf(i,1) )nK-39,G  
CTG:C5OK  
fsum I:ag}L8`  
Q(3Na6  
*get,n_nf(i,2),fsum,,item,fx 3u)NkS=  
cL]vJ`?Ih  
*get,n_nf(i,3),fsum,,item,fy rY~!h
Z  
'\MYC8"  
*enddo 8,0WHivg  
sUCI+)cM3  
!*status,n_nf Ly7|:IbC  
_:B
/XZ  
parsav,all,002,PARM xe~l
V  
hLqRF4>L  
  *WHQ1geI8  
,u:J"epM  
/solu |B<;4ISaRI  
_{]\} =@  
antype,,rest G`_LD+  
i; qb\  
!杀死上台阶土体单元 zmw <y2`  
.d JX,^  
allsel 2~*J<iO&l  
bp>-{Nv  
esel,s,mat,,3 xksd&X:  
;yvx-  
ekill,all kXfTNM
b  
pn:) Rq0  
!施加等效释放节点力 rF3QmR?l  
X{ZcJ8K  
parres,,002,PARM ]d4`PXI  
Hd/|f;  
esel,s,mat,,3 *[P"2b#  
YT*_ vmJV  
nsle,s g[NmVY-o  
d'oh-dj %^  
nsel,r,ext &!xePKvO6k  
p-6
Y5$Y  
*do,i,1,n ko2T9NI:S  
SWX[|sjdB  
f,n_nf(i,1),fx,0.65*n_nf(i,2) j.?c~Fh  
klwC.=?(j"  
f,n_nf(i,1),fy,0.65*n_nf(i,3) al<;*n{/  
PQkFzyk  
*enddo ji|+E`Nii  
X\-IAv  
  :"vW;$1 }  
_VjfH2Y  
!约束死单元自由度 Cggu#//Z}Q  
r~q(m>Ct6  
allsel e={X{5z0  
0bR)]"K  
esel,s,live xzZ2?zWi  
+ Z7 L&BI  
nsle,s n0ZrgTVJ
 
,[} XK9  
nsel,inve H8'q Y  
wNk 0F7Ck  
d,all,all /tG0"
1{  
9_h V1:  
  R">-h;#  
8l?mN
apy  
allsel /#lqv)s'  
_+OnH!G0  
solve StuQ}  
6D=9J
%;  
save,step2,db z!M8lpIM  
u%o]r9xl'  
esel,s,live  4 Wb^$i!  
tRl01&0S  
eplot lBpy0lo#  
g+X .8>=  
  '^npZa'%sW  
isG8S(}IW&  
!荷载步3 nmH1Wg*aW  
u{6b>c|,X  
!删除节点力，激活上台阶支护和锚杆 H n^)Xw  
rT&rv^>f  
allsel *&=sL  
THVF(M4v  
esel,s,mat,,3 uPmK:9]3R  
gXNlnh%?S  
nsle,s t-gLh(-.  
\W,,@-  
nsel,r,ext yGxAur=dE  
KWq&<X5  
fdele,all,all x%hV5KW  
@PaOQ@  
  Y-&SZI4H  
/:+f5\"-b  
esel,s,mat,,1,6,5 V1P]mUs{1  
fLtN-w6t  
ealive,all Sj[iKCEKtv  
+2KYtyI  
  :Zs i5>MT  
A
o0p=@Y  
allsel tFi'RRZ  
^n@dC?  
solve yDE0qUO  
5~pQ$-  
save,step3,db |#>:@{X<  
8p;|&7  
  Z8Jrt3l{2  
iF_#cmSy$  
!荷载步4，下台阶开挖，应力释放 +nz6+{li\  
ep$C nBwE  
!提取节点力 61[ 8I},V  
@(m+B\  
/post1 **D3.-0u&  
JNJ96wnX1  
esel,s,mat,,4 7gk}f%,3P  
DL t"cAW  
nsle,s ]T?Py)  
FQ3{~05T  
nsel,r,ext 8JFns-5  
P[G
.LO  
*get,n,node,,count A=PJg!  
Asy&X  
*dim,n_nf,array,n,3 yx@%x?B  
}Ai_peO0a  
*do,i,1,n ma gZmY~  
T"b'T>Y  
*get,n_nf(i,1),node,,num,min [f1'Qb  
9W7 ljUg  
nsel,u,,,n_nf(i,1) 7K5D,"D;1  
Wq+a5[3"  
*enddo 9GV1@'<Y]  
jDV;tEY#^  
!*status,n_nf $ #*";b)QY  
P<tHqN!q  
*do,i,1,n C8xxR~mq  
1GaM!OC9  
nsel,s,,,n_nf(i,1) MR?5p8S#g  
yMd<<:Ap  
fsum mw\ z'  
o#^(mGj_.  
*get,n_nf(i,2),fsum,,item,fx :j)v=qul  
9tMaOm  
*get,n_nf(i,3),fsum,,item,fy
]UMt  
^%qe&Pe2  
*enddo f*:DH4g }B  
=(3Yj[>st  
!*status,n_nf C'wRF90  
PXx:JZsju  
parsav,all,002,PARM Sb/`a~q^  
pGsk[.  
  Ue=Je~Ri;9  
?f8)_t}^\  
/solu R [[ #r5q  
}%T8?d]  
antype,,rest [J{M'+a  
C-}@.wr(  
!杀死下台阶土体单元 zAZ+'9LB  
S{0iPdUC  
allsel _,ki/7{  
?_@_NV MY  
ealive,all xsO "H8  
BM vG
w  
esel,s,mat,,2,3,1 4eRV?tE9  
oy _DYop  
esel,a,mat,,4 2m*g,J?ql  
<27:O,I  
ekill,all  UZV\]Y  
'#oNOU  
!施加等效释放节点力 -
K@mjN  
Rs +),  
parres,,002,PARM LwI A4$d  
_oILZ,  
esel,s,mat,,4 gfW_S&&q  
r'bPSu,  
nsle,s UGb<&)  
^5GyW`a}  
nsel,r,ext )Z"  
)Z=S'm k4_  
*do,i,1,n zUI
h^hbFf  
r=J+  
f,n_nf(i,1),fx,0.65*n_nf(i,2) xpU7ZY  
R/O>^s!Co  
f,n_nf(i,1),fy,0.65*n_nf(i,3) u alpm#GU  
l!d |luqbA  
*enddo ;h-W&i7  
_=\J:r|Y:  
  QMz6syn4u  
DH>>u  
!约束死单元自由度 ZHN@&Gg6)  
)@Vz,f\}  
allsel HkL:3 E.  
0p31C7!  
esel,s,live Fcz}Gs4  
e!B>M{  
nsle,s v|7=IJ  
BKV,V/*p  
nsel,inve :;g7T-_q  
(*K=&e0O  
d,all,all nj(\+l5  
5fT"`FL?  
  C5F=J8pY  
auai@)v6  
allsel
Rt9S  
2LTMt?  
solve '|7'dlW  
L%CBz]`  
save,step4,db PsMp&~^  
,bGYixIfYZ  
esel,s,live 0DsW1  
8k0f&Cak=  
eplot 6z'3e\x  
}t FRl  
  SZ&I4-  
M}S1Zz%Ii1  
!荷载步5 &Rp/y%9  
c{,VU.5/  
!删除节点力，激活下台阶支护 o?O> pK  
J
qp;8DV}  
allsel #3_t}<fX  
0DB8[#i%:  
esel,s,mat,,4 eJvNUBDSH  
6 6%_p]U  
nsle,s zgnZ72%  
JS^QfT,zE  
nsel,r,ext kR !O-@GJ]  
ceUhCb  
fdele,all,all 6/=0RTd  
%@~;PS3kd  
  i[#XYX'\  
TpH-_ft  
esel,s,mat,,2 |b+ZKRW  
&<>NP?j}  
ealive,all 1zP)~p3a  
XZ&cTjNB&  
  Gpb<,v_3  
fN!lXPgM  
allsel 0^m`jD  
ZYexW=@  
solve H5)8TR3La  
|nMg.t`8  
save,step5,db v.q`1D1=t  
yP^C)  
  "T4buTXJ  
QB"Tlw(  
!后处理 ?s-Z
3{k  
!荷载步1 ~85>.o2RDW  
/post1 5{Oq* |  
set,1,last ea3f`z  
esel,s,live S%p.|!  
plnsol,u,sum G(fS__z  
plnsol,u,x SmUj8?6"  
plnsol,u,y b3M`vJ+{  
  !LX)  
Sp]u5\  
!荷载步3 NRI@M5  
set,3,last u==`]\_@  
!支护内力 LZI[5tA"  
esel,s,type,,1 1Uaj}=@M  
etable,fx_i,smisc,1 tZL {;@  
etable,fx_j,smisc,7 QUO'{;,  
plls,fx_i,fx_j,0.2 579<[[6~d2  
etable,fy_i,smisc,2 +td]g9Ie  
etable,fy_j,smisc,8 '~\\:37+  
plls,fy_i,fy_j,0.2 
%ZR<z$  
esel,s,type,,1 !XqU'xxC  
etable,mz_i,smisc,6 xW.~Jt  
etable,mz_j,smisc,12 buu /Nz$  
plls,mz_i,mz_j,-0.2 _)%Sz"g^Ix  
  ]=Dzr<*v  
N87)rhXSo,  
!锚杆内力 A?+0Ce&qL  
esel,s,type,,3 Q{:=z6&  
etable,sa,ls,1 ;xQNa}"V  
plls,sa,sa,0.06 B4MrrW4=  
!etable,ybae,lepel,1 +.2OZ3(  
!plls,ybae,ybae,0.1 1va~.;/rG  
  Q
^{XM  
uf/4vz,  
!应力场 (~ `?_  
esel,s,live 5I6u 2k3  
plnsol,s,1 Jmml2?V-c  
plnsol,s,2 |\<L7|hb9  
plnsol,s,3 3Jh!YzI8  
plnsol,s,int r^v1_u,1I  
plnsol,eqv )#Le"&D  
  oO4hBM([  
8-&c%h 1  
  H2JKQm_  
*mjPNp'3{m  
!位移场(减去初始位移场) C)?tf[!_6  
esel,s,live v1VH&~e  
lcdef,1,1,last t}wwRWo2?f  
lcdef,5,5,last 3Ow bU  
lcase,5 dZ,IXA yB  
lcoper,sub,1 t8ZzBD!dP  
plnsol,u,sum Iy#=Nq=  
plnsol,u,x n|N?[)^k  
plnsol,u,y 5XzN%<_h9  
  o FS2*u  
dI?x&#(vw  
  !Pc&Sg  
xiy=D5N.=  
  \n>7T*iM&  
/_[?i"GW  
/post26 V=de3k&p  
numvar,30 /iw$\F |8  
!拱顶位移 0Lx,qZ'  
nsol,2,13,u,y ?_t_rF(?6  
!水平收敛 tu:W1?  
nsol,3,139,u,x m|]:oT`M  
nsol,4,1,u,x _PPn =kuMa  
add,5,3,4,,,,,1,-1 Ju@8_ ?8=  
!地表沉降 EGysA{o"X  
nsol,11,1621,u,y h3rVa6cxM  
nsol,12,2236,u,y yBl9a-2A
 
nsol,13,2238,u,y L6 IIk  
nsol,14,2227,u,y [e f&|Pi-  
nsol,15,2276,u,y wec_=EqK0  
nsol,16,2278,u,y ^iqy|zNtn  
nsol,17,2084,u,y rX}FhBl5  
  cfC}"As  
{ u %xc"0y  
prvar,2,3,4,5 H
DYWDp  
prvar,11,12,13,14 Qv}TUX4  
prvar,15,16,17 Mpx98xcO  
  EpCF/i?9:  
wM1&_%N  
  Mc9JFzp  
\&MJ(F>vJ  
  1'YUK"i  
Pq(7lua7  
  ?D_^8
\R  
.
2{*>Dzi  
  E;rS"'D:  
;-Ki`x.oJ  
  7tP qez#  
q
x1+'  
  !!+LFe4su  
@:Emmzucv|  
  WYm<_1  
' +f(9/  
  L-DL)
8;`  
X6Q\NJ"
B  
  fl}!V4  
V.-cm51I  
  ZKTY1JW_  
:Xs3Vh,V  
  hlBMRx49  
g%_3  
  ,}:}"cl  
>K!$@]2F  
  {HtW`r1)Tt  
I|<`Er-;58  
  .x'?&7#(  
W P9PX  
  h7kn >q;  
hYbaVE  
  O~#A )d6  
O<P(
UT"  
  .G-L/*&%  
VVw5)O1'  
  <)a7Nrc\T  
EYRg,U&'  
  x8o/m$[,=u  
~5>k_\G8  
  pCC3r t(  
D4O^5?F)|  
  L_Xbca=  
gx.\&W b  
  $U4[a:  
8gxo{<,9  
  &>xz  
:X}fXgeL  
  Gzc`5n{"  
`d}t?qWS;F  
  (_3QZ  
#H]c/  
  UB,0c)   
<8ih >s(C  
  sQmJ3 (:HO  
eX$RD9 H  
  sLd%m+*p  
T,9pd;k  
  S1o[)q   
L0;XzZS  
  6>gm!6`  
~5o2jTNy`p  
  3Dx@rW\  
*M-'R*Np  
  %uz6iQaq]X  
&f
W'_,-  

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 IEe;ygL#  

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 :jJ0 +Q  
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