[求助]求教！UDEC 模拟煤层开挖建模 无法初始平衡问题 [复制链接]

UDEC0501.txt (5 K) 下载次数:27 求教！！我建了一个模型 但是没法达到初始平衡，一直在循环，这个跟什么有关系的？除了边界条件，还跟什么有关？望高手不吝赐教~附件里有所有的命令。以下也是 EFt`<qwj  
round 0.05 ai  _fN  
blo 0,0 0,200 300,200 300,0 k&iScMgCTH  
;底板 ^|i\d\  
;01砂岩（69m） 0W%}z}/N  
cr 0,0 300,0 kDl4t]j  
cr 0,69 300,69 Zbh]SF{3F  
;02煤层 yXo0z_ G  
cr 0,71 300,71 Rue|<d1  
;03泥岩 ^
WW|AS  
cr 0,75 300,75 Q1\k`J  
;04煤层 =C>`}%XT}  
cr 0,76 300,76 zQ %z"tQ  
;05砂岩（直接底） U3+_'"  
cr 0,80 300,80 VN-#R=D  
;06开挖煤层 O| 6\g>ew  
cr 0,82 300,82 05VOUa*pb  
;顶板 X+E\]X2  
;07泥岩（直接顶） KSB_%OI1  
cr 0,86 300,86 Yj7= T%5  
;08砂质泥岩 Q>a7Ps@~  
cr 0,89 300,89 /,N!g_"Z  
;09煤层 {F+M&+``  
cr 0,90 300,90 K0RYI69_  
;10砂岩 Dq%r !)  
cr 0,93 300,93 ^!p<zZ  
;11泥砂岩互层 j[J@tM#  
cr 0,104 300,104 6Vbv$ AU  
;12砂岩 >{qK]xj  
cr 0,200 300,200 I<(.i!-x  
;开挖分块 ' raB  
cr 75,80 75,82 iVi3 :7*  
cr 225,80 225,82 ^HlLj#  
;节理划分 OWXye4`*  
;01砂岩(69m) /
.kna4k  
jreg id 1 0,0 0,69 300,69 300,0 QJIItx4hE  
jset 0,0 300,0 14,0 14,0 0,14 range jreg 1 cov#Z ux  
jset 90,0 14,0 14,0 20,0 20,0 range jreg 1 m{$tO;c/Q  
jset 90,0 14,0 14,0 20,0 10,14 range jreg 1 %3c|  
;02煤层(2m) :&0yf;>v  
jreg id 2 0,69 0,71 300,71 300,69 range jreg 2 t-7[Mk9@  
jset 90,0 2,0 2,0 15,0 7.5,69 range jreg 2 eMl]td rI  
;03泥岩(4) E?gu(\an@  
jreg id 3 0,71 0,75 300,75 300,71 @Gn?8Ur%  
jset 90,0 4,0 4,0 15,0 15,71 range jreg 3 kuj12  
;04煤层(1m) KjwY'aYwr:  
jreg id 4 0,75 0,76 300,76 300,75 %][$y7  
jset 90,0 1,0 1,0 10,0 10,75 range jreg 4 -M
i}yi  
;05砂岩(4m) *iRm`)zC(  
jreg id 5 0,76 0,80 300,80 300,76 j #I:6yA3  
jset 0,0 300,0 2,0 2,0 0,78 range jreg 5 hi3sOK*r;<  
jset 90,0 2,0 2,0 10,0 5,76 range jreg 5 O? Gl4_y  
jset 90,0 2,0 2,0 10,0 10,78 range jreg 5 m,gy9$  
;06开挖煤层(2m) H MjeGO.i  
jreg id 6 0,80 0,82 300,82 300,80 yg+IkQDf4U  
jset 0,0 300,0 300,0 0.5,0 0,80.5 range jreg 6 0gOrW=  
jset 90,0 0.5,0 0.5,0 1,0 0.5,80 range jreg 6 "?eH=!  
jset 90,0 0.5,0 0.5,0 1,0 1,80.5 range jreg 6 :m++ iR  
;07泥岩(4m) Tc
KvSdr'  
jreg id 7 0,82 0,86 300,86 300,82 g#'fd/?Q  
jset 0,0 300,0 300,0 1,0 0,83 range jreg 7 x*R8^BA]pR  
jset 90,0 1,0 1,0 1,0 2.5,82 range jreg 7 UrhM)h?%  
jset 90,0 1,0 1,0 1,0 5,83 range jreg 7 YD='M.n\  
;08砂质泥岩(3m) k$-~_^4m  
jreg id 8 0,86 0,89 300,89 300,86 Rg?{?qK\K  
jset 0,0 300,0 0,0 1.5,0 0,87.5 range jreg 8 MB8SB   
jset 90,0 1.5,0 1.5,0 10,0 10,86 range jreg 8 #NN"(I  
jset 90,0 1.5,0 1.5,0 10,0 5,87.5 range jreg 8 ^?s~Fk_V  
;09煤层(1m) R7B,Q(q2-  
jreg id 9 0,89 0,90 300,90 300,89 :e&n.i^  
jset 90,0 1,0 1,0 10,0 10,89 range jreg 9 5Q$r@&qp  
;10砂岩(3m) G_^iR-
  
jreg id 10 0,90 0,93 300,93 300,90 ^YG7dd_  
jset 90,0 3,0 3,0 15,0 7.5,90 range jreg 10 )zW%\s*
'  
;11砂泥岩互层(11m) 5rfH;`  
jreg id 11 0,93 0,104 300,104 300,93 ]/o12pI  
jset 0,0 300,0 0,0 4,0 0,97 range jreg 11 4P4 Fo1  
jset 90,0 4,0 4,0 15,0 15,93 range jreg 11 O@r.>  
jset 90,0 4,0 4,0 15,0 7.5,97 range jreg 11 ckf<N9  
;12砂岩(96m) =CKuiO.j  
jreg id 12 0,104 0,200 300,200 300,104 G !1~i*P$u  
jset 0,0 300,0 0,0 14,0 0,118 range jreg 12 Ev+HWx~Y  
jset 90,0 14,0 14,0 20,0 20,104 range jreg 12 fKTDt%  
jset 90,0 14,0 14,0 20,0 10,118 range jreg 12 xMNNXPz(  
change con=3 xI@$aTGq  
;设置材料号 A{aw< P|+  
change mat 1 range jreg 1 GDHK.?GY  
change mat 2 range jreg 2 q[)q|R|  
change mat 3 range jreg 3 ]|,q|c,  
change mat 2 range jreg 4 H}
sS4[z  
change mat 1 range jreg 5 bB:r]*_ s]  
change mat 2 range jreg 6 fou_/Nrue  
change mat 3 range jreg 7 2&.n  
change mat 4 range jreg 8 wc7mJxJxA  
change mat 2 range jreg 9 FJ{,=@  
change mat 1 range jreg 10 zNV!@Yr  
change mat 5 range jreg 11 ?E+:]j_  
change mat 1 range jreg 12
$(@o$%d  
;设置材料参数 <?LfOSdMs^  
prop mat 1 dens=2780 bulk=11.5e9 shear=9.5e9 fric=36 coh=1.3e7 tens=1e6 gV"qV  
prop mat 2 dens=1400 bulk=2.78e9 shear=2.08e9 fric=35 coh=0.75e6 tens=3e5 =f4[=C$&`  
prop mat 3 dens=2560 bulk=4.29e9 shear=3.92e9 fric=32 coh=1e6 tens=0.8e6 <G~}N  
prop mat 4 dens=2560 bulk=6.29e9 shear=6.92e9 fric=35 coh=1.2e7 tens=1e6 x)ddRq l  
prop mat 5 dens=2660 bulk=6.5e9 shear=6.75e9 fric=35 coh=0.5e6 tens=0.5e6 af<NMgT2s~  
;设置节理材料号 IpWy)B>Fl3  
change jmat 1 range jreg 1 j{{~ZM  
change jmat 2 range jreg 2 {Ax)[<i  
change jmat 3 range jreg 3 K\IYx|Hm a  
change jmat 4 range jreg 4 SZ5O89  
change jmat 5 range jreg 5 8_a$kJJ2  
change jmat 6 range jreg 6 AV:Xg4UJv  
change jmat 7 range jreg 7 Uvjdx(fY[a  
change jmat 8 range jreg 8 Rg
B6:f,  
change jmat 9 range jreg 9 'yPCZ`5H(  
change jmat 10 range jreg 10 }W:*aU  
change jmat 11 range jreg 11 HzRX$IKB3(  
change jmat 12 range jreg 12
?Oy'awf_  
;设置节理参数 [=F>#8=  
prop jmat 1 jkn=17.24e9 jks=7.33e9 jfric=36 gppBFS  
prop jmat 2 jkn=27.73e9 jks=11.55e9 jfric=35 bp]^EVx  
prop jmat 3 jkn=23.76e9 jks=10.33e9 jfric=32 Hp)X^O"  
prop jmat 4 jkn=55.46e9 jks=23.09e9 jfric=35 9VoDhsKk  
prop jmat 5 jkn=120.68e9 jks=51.31e9 jfric=36 `z|
=~  
prop jmat 6 jkn=110.93e9 jks=46.18e9 jfric=35       CM%|pB/z  
prop jmat 7 jkn=95.04e9 jks=41.32e9 jfric=32 r}/yi  
prop jmat 8 jkn=103.29e9 jks=47.06e9 jfric=35 V$/u  
prop jmat 9 jkn=55.46e9 jks=23.09e9 jfric=35 qQfqlD<  
prop jmat 10 jkn=80.45e9 jks=34.2e9 jfric=36   #XTY7,@P  
prop jmat 11 jkn=38.69e9 jks=14.71e9 jfric=35 0jxO |N2)  
prop jmat 12 jkn=17.24e9 jks=7.33e9 jfric=36 (Wd_G-da  
;施加初始应力条件  r=25000  按开挖煤层上表面埋深400米计算 << 3 a<I  
bound stress 0,0,-7.05e6 range -0.1,300.1 199.9,200.1 1t/dxB;  
insitu stress -9.64e6,0,-7.05e6 szz=-9.64e6 & ygard -2e4,0,0 zgrad 0,-2e4 W@I 02n2H  
;施加初始位移条件 Y{B9`Z  
bound xvel=0.0 range -0.1,0.1 -0.1,200.1 _:35d1[  
bound xvel=0.0 range 299.9,300.1 -0.1,200.1 g.64Id  
bound yvel=0.0 range -0.1,300.1 -0.1,0.1 1.# |QX  
set grav 0.0 -9.81 x9&-(kBU  
hist unbal 8tb6 gZz  
solve rat 1e-5 yicO!:bM  

我虽然不会udec  但个人认为   你试着把收敛条件放大点   或者是不是有什么 steps 之类的   也可以调试一下！！

bound stress 0,0,-7.05e6 range -0.1,300.1 199.9,200.1 c GyBml1   tbtI1"$  
insitu stress -9.64e6,0,-7.05e6 szz=-9.64e6 & ygard -2e4,0,0 zgrad 0,-2e4 *d31fBCk%   !CVuw  
你检查下两个应力是否一致