[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 7z$53z  
round 0.05 vs8[352  
blo 0,0 0,200 300,200 300,0 jW&*?6<  
;底板 3sV$#l P  
;01砂岩（69m） &7'=t6  
cr 0,0 300,0 i?B<&'G  
cr 0,69 300,69 qD%88c)g  
;02煤层 5%D`y|  
cr 0,71 300,71 i3XtrP""  
;03泥岩 | K|AUI  
cr 0,75 300,75 e_!h>=$%8  
;04煤层 &</)k|.A6\  
cr 0,76 300,76 =H7p&DhD[  
;05砂岩（直接底） Y1lUO[F j  
cr 0,80 300,80 ,%Z&*/*Oh  
;06开挖煤层 G>pedE\  
cr 0,82 300,82 3q4VH q  
;顶板 DvhFCA}z  
;07泥岩（直接顶） W.4R+kF<  
cr 0,86 300,86 PoZ$3V$(Lz  
;08砂质泥岩 UZ/LR  
cr 0,89 300,89 uNy-r`vg  
;09煤层 ~ tR!hc}  
cr 0,90 300,90 A23K!a2u&  
;10砂岩 yPfx!9B  
cr 0,93 300,93 O4`.ohAZ  
;11泥砂岩互层 12i`82>;  
cr 0,104 300,104 hg12NzbK  
;12砂岩 Y
AR$6&  
cr 0,200 300,200 F$>#P7ph\a  
;开挖分块 mqeW,89  
cr 75,80 75,82 1]>JMh%X9t  
cr 225,80 225,82 n%h009-5  
;节理划分 %o9mG<.T  
;01砂岩(69m) trwo(p  
jreg id 1 0,0 0,69 300,69 300,0 [e,xC!2  
jset 0,0 300,0 14,0 14,0 0,14 range jreg 1 YQ+8lANC  
jset 90,0 14,0 14,0 20,0 20,0 range jreg 1 V@+sNM  
jset 90,0 14,0 14,0 20,0 10,14 range jreg 1 &=t~_ Dc  
;02煤层(2m) b w1s?_P  
jreg id 2 0,69 0,71 300,71 300,69 range jreg 2 @j\;9>I/  
jset 90,0 2,0 2,0 15,0 7.5,69 range jreg 2 Z3o HOy  
;03泥岩(4) x=0Ak'1M  
jreg id 3 0,71 0,75 300,75 300,71 1f3g5y'z5  
jset 90,0 4,0 4,0 15,0 15,71 range jreg 3 s]yZ<uA  
;04煤层(1m) _&(Wz0  
jreg id 4 0,75 0,76 300,76 300,75 7/&taw%i  
jset 90,0 1,0 1,0 10,0 10,75 range jreg 4 #l>r9Z71  
;05砂岩(4m) gD%o0jt"  
jreg id 5 0,76 0,80 300,80 300,76
]l }v  
jset 0,0 300,0 2,0 2,0 0,78 range jreg 5 "LYhYkI  
jset 90,0 2,0 2,0 10,0 5,76 range jreg 5 8;~,jZ s  
jset 90,0 2,0 2,0 10,0 10,78 range jreg 5 :M;|0w*b  
;06开挖煤层(2m) 8Ud.t=2  
jreg id 6 0,80 0,82 300,82 300,80 h_X'O3r  
jset 0,0 300,0 300,0 0.5,0 0,80.5 range jreg 6 no\G >#  
jset 90,0 0.5,0 0.5,0 1,0 0.5,80 range jreg 6 y<gRl/e  
jset 90,0 0.5,0 0.5,0 1,0 1,80.5 range jreg 6 n<EIu  
;07泥岩(4m) Af]BR_-  
jreg id 7 0,82 0,86 300,86 300,82 E5gt_,j>  
jset 0,0 300,0 300,0 1,0 0,83 range jreg 7 D7R;IA-w  
jset 90,0 1,0 1,0 1,0 2.5,82 range jreg 7 0<A*I{,4L  
jset 90,0 1,0 1,0 1,0 5,83 range jreg 7 gT[]"ZT7  
;08砂质泥岩(3m) ?`vGpi~  
jreg id 8 0,86 0,89 300,89 300,86 860y9wzU  
jset 0,0 300,0 0,0 1.5,0 0,87.5 range jreg 8 e8SAjl"}  
jset 90,0 1.5,0 1.5,0 10,0 10,86 range jreg 8 [)}`w;#  
jset 90,0 1.5,0 1.5,0 10,0 5,87.5 range jreg 8 =WF@S1  
;09煤层(1m) 6k')12~'  
jreg id 9 0,89 0,90 300,90 300,89 QBmARQ  
jset 90,0 1,0 1,0 10,0 10,89 range jreg 9 "pX|?ap  
;10砂岩(3m) Lniz>gSc  
jreg id 10 0,90 0,93 300,93 300,90 @ #J2t#  
jset 90,0 3,0 3,0 15,0 7.5,90 range jreg 10 V#599-  
;11砂泥岩互层(11m) 0XE6Hw  
jreg id 11 0,93 0,104 300,104 300,93 O 8l`1  
jset 0,0 300,0 0,0 4,0 0,97 range jreg 11 Y)8 Py1}  
jset 90,0 4,0 4,0 15,0 15,93 range jreg 11 Fbotn(\h@  
jset 90,0 4,0 4,0 15,0 7.5,97 range jreg 11 %N\45nYU:  
;12砂岩(96m) !*^+7M  
jreg id 12 0,104 0,200 300,200 300,104 ;|=5)KE  
jset 0,0 300,0 0,0 14,0 0,118 range jreg 12 O&CY9 2)Lk  
jset 90,0 14,0 14,0 20,0 20,104 range jreg 12 REc90v2"  
jset 90,0 14,0 14,0 20,0 10,118 range jreg 12 =H-BsX?P  
change con=3 /5KY6XxR  
;设置材料号 mr>E'd.'  
change mat 1 range jreg 1 rf/]VAK  
change mat 2 range jreg 2 1"A"AMZf  
change mat 3 range jreg 3 q%s<y+  
change mat 2 range jreg 4 t`6~ud>  
change mat 1 range jreg 5 aEUEy:.  
change mat 2 range jreg 6 heES [  
change mat 3 range jreg 7 f U<<GK70  
change mat 4 range jreg 8 `)=sQ2P  
change mat 2 range jreg 9 fuf'r>1n  
change mat 1 range jreg 10 Cs]\3R|D`  
change mat 5 range jreg 11 J{;\TNkJ  
change mat 1 range jreg 12 }lkU3Pf1U  
;设置材料参数 A;xH{vo{  
prop mat 1 dens=2780 bulk=11.5e9 shear=9.5e9 fric=36 coh=1.3e7 tens=1e6 kt
Y  
prop mat 2 dens=1400 bulk=2.78e9 shear=2.08e9 fric=35 coh=0.75e6 tens=3e5 DBfq9%J _  
prop mat 3 dens=2560 bulk=4.29e9 shear=3.92e9 fric=32 coh=1e6 tens=0.8e6 &4t=Y`]SL  
prop mat 4 dens=2560 bulk=6.29e9 shear=6.92e9 fric=35 coh=1.2e7 tens=1e6 u<\Sf"fs  
prop mat 5 dens=2660 bulk=6.5e9 shear=6.75e9 fric=35 coh=0.5e6 tens=0.5e6 2zsDb'r  
;设置节理材料号 $*fEgU% c  
change jmat 1 range jreg 1 ?YF
SK  
change jmat 2 range jreg 2 o|KmKC n>  
change jmat 3 range jreg 3 Fyz1LOH[X  
change jmat 4 range jreg 4 UZJs!#P  
change jmat 5 range jreg 5 m2
%
 
change jmat 6 range jreg 6 41C6ey  
change jmat 7 range jreg 7 it j&L <e  
change jmat 8 range jreg 8 nwJub$5  
change jmat 9 range jreg 9 !9S!zRy@  
change jmat 10 range jreg 10 y7b>>|C  
change jmat 11 range jreg 11 TY+Rol;!  
change jmat 12 range jreg 12 sEb*GF*.V  
;设置节理参数 x;&iLQZh  
prop jmat 1 jkn=17.24e9 jks=7.33e9 jfric=36 ]o9^?iU]  
prop jmat 2 jkn=27.73e9 jks=11.55e9 jfric=35 Q:b>1  
prop jmat 3 jkn=23.76e9 jks=10.33e9 jfric=32 #%CB`l  
prop jmat 4 jkn=55.46e9 jks=23.09e9 jfric=35 Re;[S[D7  
prop jmat 5 jkn=120.68e9 jks=51.31e9 jfric=36 Zh:@AFz:R  
prop jmat 6 jkn=110.93e9 jks=46.18e9 jfric=35       W1}d6Sbg  
prop jmat 7 jkn=95.04e9 jks=41.32e9 jfric=32 =b3<}]  
prop jmat 8 jkn=103.29e9 jks=47.06e9 jfric=35 MR":aT  
prop jmat 9 jkn=55.46e9 jks=23.09e9 jfric=35 CTB qX  
prop jmat 10 jkn=80.45e9 jks=34.2e9 jfric=36   1VXn`O?LW  
prop jmat 11 jkn=38.69e9 jks=14.71e9 jfric=35 (Kkqyrb  
prop jmat 12 jkn=17.24e9 jks=7.33e9 jfric=36 #9(iu S+BU  
;施加初始应力条件  r=25000  按开挖煤层上表面埋深400米计算 Y0Rk:Njc  
bound stress 0,0,-7.05e6 range -0.1,300.1 199.9,200.1 St3/mDtH  
insitu stress -9.64e6,0,-7.05e6 szz=-9.64e6 & ygard -2e4,0,0 zgrad 0,-2e4 !J}Q%i  
;施加初始位移条件 H"JzTo8u  
bound xvel=0.0 range -0.1,0.1 -0.1,200.1 F @!9rl'  
bound xvel=0.0 range 299.9,300.1 -0.1,200.1 mj& 4FQ#O*  
bound yvel=0.0 range -0.1,300.1 -0.1,0.1 Wh?
3vZ^  
set grav 0.0 -9.81 T ^`R  
hist unbal *kGk.a=  
solve rat 1e-5 @vi;P ^1!
 

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   u`Zj~t  
insitu stress -9.64e6,0,-7.05e6 szz=-9.64e6 & ygard -2e4,0,0 zgrad 0,-2e4 *d31fBCk%   LeXkl=CC  
你检查下两个应力是否一致