[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 ,^icPQSwc  
round 0.05 ?`J[[",  
blo 0,0 0,200 300,200 300,0 $['Bv  
;底板 'U'yC2BI n  
;01砂岩（69m） .5  
cr 0,0 300,0 Ytg
j|@jsp  
cr 0,69 300,69 -GLMmZJt  
;02煤层 _#vrb;.+  
cr 0,71 300,71 y!]CJigpZ  
;03泥岩 )?wJF<[_#  
cr 0,75 300,75 k%^lF?_0I  
;04煤层 ?)e37  
cr 0,76 300,76 %c[V  
;05砂岩（直接底） ZcYh) HD  
cr 0,80 300,80 ~)(\6^&=|  
;06开挖煤层 }`+B=h-dW  
cr 0,82 300,82 r_;9'#&'  
;顶板 XV^1tX>f{  
;07泥岩（直接顶） n("0%@ov  
cr 0,86 300,86 t|m=J`a{q;  
;08砂质泥岩 ? R>h `  
cr 0,89 300,89 U!Ek'  
;09煤层 `Qeg   
cr 0,90 300,90 0?>dCu\  
;10砂岩 yv)ux:P&+  
cr 0,93 300,93 3MRc4UlB  
;11泥砂岩互层 "?mJqA  
cr 0,104 300,104 ;qBu4'C)T  
;12砂岩 r[K5w  
cr 0,200 300,200 }- Wa`t7U  
;开挖分块 \rPbK+G.  
cr 75,80 75,82 6d+p7x  
cr 225,80 225,82 +>4;Zd!@d  
;节理划分 m>SErxU(z  
;01砂岩(69m) Zkf0p9h\  
jreg id 1 0,0 0,69 300,69 300,0 H'HSD,>(  
jset 0,0 300,0 14,0 14,0 0,14 range jreg 1 "le>_Ze_>|  
jset 90,0 14,0 14,0 20,0 20,0 range jreg 1 MeUaTJFEB  
jset 90,0 14,0 14,0 20,0 10,14 range jreg 1 |<O9Sb_  
;02煤层(2m) cp o-.  
jreg id 2 0,69 0,71 300,71 300,69 range jreg 2 ~RWktv  
jset 90,0 2,0 2,0 15,0 7.5,69 range jreg 2 ":_vK}5  
;03泥岩(4) H8"@iE,  
jreg id 3 0,71 0,75 300,75 300,71 Ge<nxl<Bd  
jset 90,0 4,0 4,0 15,0 15,71 range jreg 3 >a}f{\Q  
;04煤层(1m) /q5:p`4{J  
jreg id 4 0,75 0,76 300,76 300,75 1T[et-  
jset 90,0 1,0 1,0 10,0 10,75 range jreg 4 85GKymz$P  
;05砂岩(4m) im @h -A]0  
jreg id 5 0,76 0,80 300,80 300,76 rl0<Ls  
jset 0,0 300,0 2,0 2,0 0,78 range jreg 5 u,6~qQczE  
jset 90,0 2,0 2,0 10,0 5,76 range jreg 5 be +4junf  
jset 90,0 2,0 2,0 10,0 10,78 range jreg 5 ciMzf$+G$  
;06开挖煤层(2m) PiA0]>  
jreg id 6 0,80 0,82 300,82 300,80 5<w g8y  
jset 0,0 300,0 300,0 0.5,0 0,80.5 range jreg 6 H#ncM~y*  
jset 90,0 0.5,0 0.5,0 1,0 0.5,80 range jreg 6 ?Ae ven  
jset 90,0 0.5,0 0.5,0 1,0 1,80.5 range jreg 6 nR`ov1RH  
;07泥岩(4m) D::rGB?.b  
jreg id 7 0,82 0,86 300,86 300,82 N$[{8yil^w  
jset 0,0 300,0 300,0 1,0 0,83 range jreg 7 A,4fEmWM  
jset 90,0 1,0 1,0 1,0 2.5,82 range jreg 7 9V5-
%Iv  
jset 90,0 1,0 1,0 1,0 5,83 range jreg 7 RSo&(Uv  
;08砂质泥岩(3m) ,{c?ymw?  
jreg id 8 0,86 0,89 300,89 300,86 F;]%V%F.X  
jset 0,0 300,0 0,0 1.5,0 0,87.5 range jreg 8 tToTxf~  
jset 90,0 1.5,0 1.5,0 10,0 10,86 range jreg 8 f;b[w

 
jset 90,0 1.5,0 1.5,0 10,0 5,87.5 range jreg 8 O?|gp<
=d  
;09煤层(1m) _8E/)M  
jreg id 9 0,89 0,90 300,90 300,89
]9@F~)  
jset 90,0 1,0 1,0 10,0 10,89 range jreg 9 y99mC$"Ee`  
;10砂岩(3m) 8w.YYo8`  
jreg id 10 0,90 0,93 300,93 300,90 8-O)Xx}cU  
jset 90,0 3,0 3,0 15,0 7.5,90 range jreg 10 7a~X:#  
;11砂泥岩互层(11m) h2D>;k  
jreg id 11 0,93 0,104 300,104 300,93 e2A-;4?_  
jset 0,0 300,0 0,0 4,0 0,97 range jreg 11
)Eo)t>  
jset 90,0 4,0 4,0 15,0 15,93 range jreg 11 zE_i*c"`  
jset 90,0 4,0 4,0 15,0 7.5,97 range jreg 11 s)pbS}L  
;12砂岩(96m) cCxBzkH6  
jreg id 12 0,104 0,200 300,200 300,104 @mfEKU!  
jset 0,0 300,0 0,0 14,0 0,118 range jreg 12 Q@HopiC  
jset 90,0 14,0 14,0 20,0 20,104 range jreg 12 )-._FOZ6  
jset 90,0 14,0 14,0 20,0 10,118 range jreg 12 y`=]T>X&x  
change con=3 E@b(1@  
;设置材料号 L+i(TM=  
change mat 1 range jreg 1 \o^2y.q:>  
change mat 2 range jreg 2 @/31IOIV]`  
change mat 3 range jreg 3 gN"7be&J  
change mat 2 range jreg 4 jB(|";G  
change mat 1 range jreg 5 q7E~+p(>(  
change mat 2 range jreg 6 j}C}:\-fY  
change mat 3 range jreg 7 1
.6:#  
change mat 4 range jreg 8 1aTB%F  
change mat 2 range jreg 9 S.f5v8  
change mat 1 range jreg 10 2=^m9%  
change mat 5 range jreg 11 H/37)&$E(  
change mat 1 range jreg 12 )h)]SF}  
;设置材料参数 ZEx}$<)_  
prop mat 1 dens=2780 bulk=11.5e9 shear=9.5e9 fric=36 coh=1.3e7 tens=1e6 8#g1P4

 
prop mat 2 dens=1400 bulk=2.78e9 shear=2.08e9 fric=35 coh=0.75e6 tens=3e5 c3CWRi`LE  
prop mat 3 dens=2560 bulk=4.29e9 shear=3.92e9 fric=32 coh=1e6 tens=0.8e6 v%iflCK  
prop mat 4 dens=2560 bulk=6.29e9 shear=6.92e9 fric=35 coh=1.2e7 tens=1e6 7yh/BZ1  
prop mat 5 dens=2660 bulk=6.5e9 shear=6.75e9 fric=35 coh=0.5e6 tens=0.5e6 $\U4hHOo  
;设置节理材料号 i,/0/?)*_  
change jmat 1 range jreg 1 G2T|RT$_K  
change jmat 2 range jreg 2 \vO,Ee~#W  
change jmat 3 range jreg 3 sc,vj'r  
change jmat 4 range jreg 4 (P:<t6;+  
change jmat 5 range jreg 5 k-^mIJo}  
change jmat 6 range jreg 6 RtM8yar+sn  
change jmat 7 range jreg 7 w {3<{  
change jmat 8 range jreg 8 K>@+m  
change jmat 9 range jreg 9 !/]WrGqbS  
change jmat 10 range jreg 10 q1KZ5G)6GJ  
change jmat 11 range jreg 11 4v{o  
change jmat 12 range jreg 12 D-._z:_  
;设置节理参数 BNs@n"k  
prop jmat 1 jkn=17.24e9 jks=7.33e9 jfric=36 ]&Rx@&e*  
prop jmat 2 jkn=27.73e9 jks=11.55e9 jfric=35 Ev}C<zk*  
prop jmat 3 jkn=23.76e9 jks=10.33e9 jfric=32 Z'7
 
prop jmat 4 jkn=55.46e9 jks=23.09e9 jfric=35 L bmawi^  
prop jmat 5 jkn=120.68e9 jks=51.31e9 jfric=36 XMu9Uk{|  
prop jmat 6 jkn=110.93e9 jks=46.18e9 jfric=35       Y<%@s}zc  
prop jmat 7 jkn=95.04e9 jks=41.32e9 jfric=32 bl&nhI)w  
prop jmat 8 jkn=103.29e9 jks=47.06e9 jfric=35 ][p>Y>:b-  
prop jmat 9 jkn=55.46e9 jks=23.09e9 jfric=35 z\%67C  
prop jmat 10 jkn=80.45e9 jks=34.2e9 jfric=36   B e0ND2oo  
prop jmat 11 jkn=38.69e9 jks=14.71e9 jfric=35 )`O~f_pIC  
prop jmat 12 jkn=17.24e9 jks=7.33e9 jfric=36 %#xaA'? [  
;施加初始应力条件  r=25000  按开挖煤层上表面埋深400米计算 t,+nQ9  
bound stress 0,0,-7.05e6 range -0.1,300.1 199.9,200.1 gq'Y!BBQy  
insitu stress -9.64e6,0,-7.05e6 szz=-9.64e6 & ygard -2e4,0,0 zgrad 0,-2e4 @X;!92i  
;施加初始位移条件 ]z/8KL  
bound xvel=0.0 range -0.1,0.1 -0.1,200.1 /~$WUAh  
bound xvel=0.0 range 299.9,300.1 -0.1,200.1 I!Z_[M  
bound yvel=0.0 range -0.1,300.1 -0.1,0.1 EZ`te0[  
set grav 0.0 -9.81 A"dR{8&0  
hist unbal S(*sw 0O@+  
solve rat 1e-5 c2'Lfgx4  

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   V)~.~2$  
insitu stress -9.64e6,0,-7.05e6 szz=-9.64e6 & ygard -2e4,0,0 zgrad 0,-2e4 *d31fBCk%   :~tAUy":_*  
你检查下两个应力是否一致