[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 yhG%@vSq  
round 0.05 Y7_2pGvZ  
blo 0,0 0,200 300,200 300,0 QpI\\Zt6  
;底板 DqN<bu2  
;01砂岩（69m） lV M)'m  
cr 0,0 300,0 " .<>(bE  
cr 0,69 300,69 "HwSW4a]  
;02煤层 `%ulorS  
cr 0,71 300,71 5 ^867  
;03泥岩 f@7HVv&  
cr 0,75 300,75 "%E<%g  
;04煤层 #_?m.~`g[  
cr 0,76 300,76 KbTd`AIL  
;05砂岩（直接底） tQ7:4._  
cr 0,80 300,80 6haw\ *  
;06开挖煤层 )~2~q7  
cr 0,82 300,82 Ygs:Ox"[-G  
;顶板 tB)nQw7  
;07泥岩（直接顶） JcJc&cG  
cr 0,86 300,86 Xdl7'~k  
;08砂质泥岩 67D{^K"KT  
cr 0,89 300,89 ?4%@"49n X  
;09煤层 Ahf71YP  
cr 0,90 300,90 lv!8)GX|  
;10砂岩 >_'0 s  
cr 0,93 300,93 V7(-<})8  
;11泥砂岩互层 $/#F9>eZ  
cr 0,104 300,104 wS+ekt5  
;12砂岩 2m{d>  
cr 0,200 300,200 pgipT#_K  
;开挖分块 -50Qy[0."  
cr 75,80 75,82  hSgH;k  
cr 225,80 225,82 sEzl4I  
;节理划分 e]DuV)k&  
;01砂岩(69m) YU,fx<c  
jreg id 1 0,0 0,69 300,69 300,0 Bj*\)lG<  
jset 0,0 300,0 14,0 14,0 0,14 range jreg 1 ]
=*G[  
jset 90,0 14,0 14,0 20,0 20,0 range jreg 1 Hzc5BC  
jset 90,0 14,0 14,0 20,0 10,14 range jreg 1 wT>~7$=L{  
;02煤层(2m) 6tZ ak1=V  
jreg id 2 0,69 0,71 300,71 300,69 range jreg 2 6QM$aLLP?  
jset 90,0 2,0 2,0 15,0 7.5,69 range jreg 2 64LAZEQX  
;03泥岩(4) dng^#|X)?  
jreg id 3 0,71 0,75 300,75 300,71 [M/0Qx[,  
jset 90,0 4,0 4,0 15,0 15,71 range jreg 3 >i!y[F  
;04煤层(1m) f(UB$^4  
jreg id 4 0,75 0,76 300,76 300,75 _MLbJ  
jset 90,0 1,0 1,0 10,0 10,75 range jreg 4 ^{{0ajI9C  
;05砂岩(4m) v9 *WM3  
jreg id 5 0,76 0,80 300,80 300,76 Z66h  
jset 0,0 300,0 2,0 2,0 0,78 range jreg 5 L"Dos
+  
jset 90,0 2,0 2,0 10,0 5,76 range jreg 5 cyTBp58  
jset 90,0 2,0 2,0 10,0 10,78 range jreg 5 %Kzu&*9Hb  
;06开挖煤层(2m) Xc8 XgZk  
jreg id 6 0,80 0,82 300,82 300,80 Vf#g~IOI  
jset 0,0 300,0 300,0 0.5,0 0,80.5 range jreg 6 p>9|JMk  
jset 90,0 0.5,0 0.5,0 1,0 0.5,80 range jreg 6 o*sss  
jset 90,0 0.5,0 0.5,0 1,0 1,80.5 range jreg 6 OuMj%
I  
;07泥岩(4m) [!ilc
HE)  
jreg id 7 0,82 0,86 300,86 300,82 dC(5I{I|  
jset 0,0 300,0 300,0 1,0 0,83 range jreg 7 A~M.v0  
jset 90,0 1,0 1,0 1,0 2.5,82 range jreg 7 =)YDjd_=z  
jset 90,0 1,0 1,0 1,0 5,83 range jreg 7 x^~@`]TV^  
;08砂质泥岩(3m) ?d' vIpzO!  
jreg id 8 0,86 0,89 300,89 300,86 8.ej65r*  
jset 0,0 300,0 0,0 1.5,0 0,87.5 range jreg 8 U+-R2w]#q_  
jset 90,0 1.5,0 1.5,0 10,0 10,86 range jreg 8 GFTOP%Tgl  
jset 90,0 1.5,0 1.5,0 10,0 5,87.5 range jreg 8
7#+>1 "\  
;09煤层(1m) 8Ao-m38  
jreg id 9 0,89 0,90 300,90 300,89 C'.^2s#e8  
jset 90,0 1,0 1,0 10,0 10,89 range jreg 9 ;q&uk-  
;10砂岩(3m) K3xt,g  
jreg id 10 0,90 0,93 300,93 300,90 U uEm{  
jset 90,0 3,0 3,0 15,0 7.5,90 range jreg 10 w:nLm,  
;11砂泥岩互层(11m) AkAQ%)6qV  
jreg id 11 0,93 0,104 300,104 300,93 FxdWJ|rN9D  
jset 0,0 300,0 0,0 4,0 0,97 range jreg 11 <i~=-Z(  
jset 90,0 4,0 4,0 15,0 15,93 range jreg 11 ^@HWw@GA  
jset 90,0 4,0 4,0 15,0 7.5,97 range jreg 11 )o`[wq  
;12砂岩(96m) 31&;3?3>  
jreg id 12 0,104 0,200 300,200 300,104 ~i UG24v  
jset 0,0 300,0 0,0 14,0 0,118 range jreg 12 -^ R?O  
jset 90,0 14,0 14,0 20,0 20,104 range jreg 12 UZRN4tru6  
jset 90,0 14,0 14,0 20,0 10,118 range jreg 12 w`I+4&/h  
change con=3 z2~\ b3G  
;设置材料号 A{%LL r:  
change mat 1 range jreg 1 ?<efKs
 
change mat 2 range jreg 2 a&Z;$  
change mat 3 range jreg 3 V~MyX&`  
change mat 2 range jreg 4 K,5_{pj  
change mat 1 range jreg 5 gN; E}AQt  
change mat 2 range jreg 6 ?M BOd9  
change mat 3 range jreg 7 tUT:
vK`  
change mat 4 range jreg 8 AwtiV-w  
change mat 2 range jreg 9 (i;,D-  
change mat 1 range jreg 10 `R 
m<1  
change mat 5 range jreg 11 XImX1GH  
change mat 1 range jreg 12 Xf{ht%b  
;设置材料参数 a^g}Z7D'T  
prop mat 1 dens=2780 bulk=11.5e9 shear=9.5e9 fric=36 coh=1.3e7 tens=1e6 noZ!j>f{@l  
prop mat 2 dens=1400 bulk=2.78e9 shear=2.08e9 fric=35 coh=0.75e6 tens=3e5 Z9q1z~qSQ  
prop mat 3 dens=2560 bulk=4.29e9 shear=3.92e9 fric=32 coh=1e6 tens=0.8e6 SQ
T]'  
prop mat 4 dens=2560 bulk=6.29e9 shear=6.92e9 fric=35 coh=1.2e7 tens=1e6 !S#K6:  
prop mat 5 dens=2660 bulk=6.5e9 shear=6.75e9 fric=35 coh=0.5e6 tens=0.5e6 l1%ubu  
;设置节理材料号 L};P*{q2Z  
change jmat 1 range jreg 1 9Yhlq$;g  
change jmat 2 range jreg 2 3g87ir  
change jmat 3 range jreg 3 J b?x-%Za  
change jmat 4 range jreg 4 a[=;6!  
change jmat 5 range jreg 5 &t,"k'p  
change jmat 6 range jreg 6 h!J|4Qa  
change jmat 7 range jreg 7 $bFH%EA.
 
change jmat 8 range jreg 8 Ejt?B')aB5  
change jmat 9 range jreg 9 0iI|eE o  
change jmat 10 range jreg 10 A_g\Fa[jG  
change jmat 11 range jreg 11 M3!4,_!~  
change jmat 12 range jreg 12 lS{ ^*(a  
;设置节理参数 'l $ViNq;  
prop jmat 1 jkn=17.24e9 jks=7.33e9 jfric=36 >X
PR)&t  
prop jmat 2 jkn=27.73e9 jks=11.55e9 jfric=35 '37 <+N  
prop jmat 3 jkn=23.76e9 jks=10.33e9 jfric=32 ? J/NYV  
prop jmat 4 jkn=55.46e9 jks=23.09e9 jfric=35 Xmw%f[Xl  
prop jmat 5 jkn=120.68e9 jks=51.31e9 jfric=36 WP5Vev9*+  
prop jmat 6 jkn=110.93e9 jks=46.18e9 jfric=35       V='A;gs  
prop jmat 7 jkn=95.04e9 jks=41.32e9 jfric=32 e(H{C  
prop jmat 8 jkn=103.29e9 jks=47.06e9 jfric=35 #`@5`;U>#  
prop jmat 9 jkn=55.46e9 jks=23.09e9 jfric=35 4 z^7T  
prop jmat 10 jkn=80.45e9 jks=34.2e9 jfric=36   ov\+&=IRG  
prop jmat 11 jkn=38.69e9 jks=14.71e9 jfric=35 3R<
VpN){  
prop jmat 12 jkn=17.24e9 jks=7.33e9 jfric=36 js;k,`  
;施加初始应力条件  r=25000  按开挖煤层上表面埋深400米计算 PwnfXsR  
bound stress 0,0,-7.05e6 range -0.1,300.1 199.9,200.1  N<~LgH  
insitu stress -9.64e6,0,-7.05e6 szz=-9.64e6 & ygard -2e4,0,0 zgrad 0,-2e4 te;VGpv.  
;施加初始位移条件 W4q |55  
bound xvel=0.0 range -0.1,0.1 -0.1,200.1 :_[pZ;-@  
bound xvel=0.0 range 299.9,300.1 -0.1,200.1 QB"+B]rV  
bound yvel=0.0 range -0.1,300.1 -0.1,0.1 y*e({fio_  
set grav 0.0 -9.81 ~A_1he~  
hist unbal p]rV\,Yss  
solve rat 1e-5 95mwDHbA  

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   zmFS]IOv$  
insitu stress -9.64e6,0,-7.05e6 szz=-9.64e6 & ygard -2e4,0,0 zgrad 0,-2e4 *d31fBCk%   :Q ?p^OC  
你检查下两个应力是否一致