[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 rBNl%+ sB  
round 0.05 Op''=Ar#sh  
blo 0,0 0,200 300,200 300,0 =)tU]kp  
;底板 q6E8^7RtS@  
;01砂岩（69m） 7bcl^~lY  
cr 0,0 300,0 PEA<H0  
cr 0,69 300,69 2|a@,TW}-  
;02煤层 j;%RV)e  
cr 0,71 300,71 %&EDh2w>  
;03泥岩 & !0[T   
cr 0,75 300,75 B#Sg:L9Tr'  
;04煤层 %K@s0uQ  
cr 0,76 300,76 _g{*;?mS  
;05砂岩（直接底） VL6_in(  
cr 0,80 300,80 08*O|Ym,  
;06开挖煤层 7,vvL8\NHu  
cr 0,82 300,82 :yPA6O 4  
;顶板 ~\4`tc  
;07泥岩（直接顶）
&U<t*"  
cr 0,86 300,86 6k14xPj  
;08砂质泥岩 p\xi5z  
cr 0,89 300,89 `2}H
$D  
;09煤层 s^O>PEX&<I  
cr 0,90 300,90 Y;qA@|  
;10砂岩 [Ol}GvzJ7  
cr 0,93 300,93 i qLNX)  
;11泥砂岩互层 Um4$. BKD  
cr 0,104 300,104 r7dvj#^  
;12砂岩 <hG] f%  
cr 0,200 300,200 AH?T}
t2  
;开挖分块 T2Duz,  
cr 75,80 75,82 #p<1@,  
cr 225,80 225,82 uLr9*nxd  
;节理划分 SU.9;I !  
;01砂岩(69m) JjO="Cmk/  
jreg id 1 0,0 0,69 300,69 300,0 a+wc"RQ |  
jset 0,0 300,0 14,0 14,0 0,14 range jreg 1 ,V$PV,G  
jset 90,0 14,0 14,0 20,0 20,0 range jreg 1 h7 uv0a~0  
jset 90,0 14,0 14,0 20,0 10,14 range jreg 1 N%3 G\|~Q  
;02煤层(2m) G'>?/l#  
jreg id 2 0,69 0,71 300,71 300,69 range jreg 2 ;4E(n  
jset 90,0 2,0 2,0 15,0 7.5,69 range jreg 2 J})#43P  
;03泥岩(4) kd0~@rPL  
jreg id 3 0,71 0,75 300,75 300,71 Gvo|uB#  
jset 90,0 4,0 4,0 15,0 15,71 range jreg 3 D)0pm?*5A  
;04煤层(1m) IvJ;9d  
jreg id 4 0,75 0,76 300,76 300,75 8|9JJ<G7  
jset 90,0 1,0 1,0 10,0 10,75 range jreg 4 M{sn{  
;05砂岩(4m) >$^v@jf  
jreg id 5 0,76 0,80 300,80 300,76 Y@&1[Z  
jset 0,0 300,0 2,0 2,0 0,78 range jreg 5 {R5{v6m_  
jset 90,0 2,0 2,0 10,0 5,76 range jreg 5 >J!J:  
jset 90,0 2,0 2,0 10,0 10,78 range jreg 5 X{8/]'(  
;06开挖煤层(2m)
a04I.5!  
jreg id 6 0,80 0,82 300,82 300,80 ;0R|#9oX_  
jset 0,0 300,0 300,0 0.5,0 0,80.5 range jreg 6 D I` M  
jset 90,0 0.5,0 0.5,0 1,0 0.5,80 range jreg 6 f[S$Gu4-  
jset 90,0 0.5,0 0.5,0 1,0 1,80.5 range jreg 6 .nGYx  
;07泥岩(4m) %+>t @F,GM  
jreg id 7 0,82 0,86 300,86 300,82 [X9s\H  
jset 0,0 300,0 300,0 1,0 0,83 range jreg 7 Y$tgz)  
jset 90,0 1,0 1,0 1,0 2.5,82 range jreg 7 ZW+[f$X  
jset 90,0 1,0 1,0 1,0 5,83 range jreg 7 x{=@~c%eh  
;08砂质泥岩(3m) DM*GvBdR  
jreg id 8 0,86 0,89 300,89 300,86 WziX1%0$n  
jset 0,0 300,0 0,0 1.5,0 0,87.5 range jreg 8 l~cT]E
p  
jset 90,0 1.5,0 1.5,0 10,0 10,86 range jreg 8 49/j9#hr  
jset 90,0 1.5,0 1.5,0 10,0 5,87.5 range jreg 8 +i %,+3#6  
;09煤层(1m) y[L7=Td  
jreg id 9 0,89 0,90 300,90 300,89 K/^70;/!.  
jset 90,0 1,0 1,0 10,0 10,89 range jreg 9 G/cE2nD  
;10砂岩(3m) RA5*QW  
jreg id 10 0,90 0,93 300,93 300,90 RU r0K#]  
jset 90,0 3,0 3,0 15,0 7.5,90 range jreg 10 6[iuCMOZ  
;11砂泥岩互层(11m) NTj:+z0  
jreg id 11 0,93 0,104 300,104 300,93 N.j?:  
jset 0,0 300,0 0,0 4,0 0,97 range jreg 11 cwe@W
PE2  
jset 90,0 4,0 4,0 15,0 15,93 range jreg 11 CO+[iJ,4C+  
jset 90,0 4,0 4,0 15,0 7.5,97 range jreg 11 O(P ,!  
;12砂岩(96m) ="M7F0k  
jreg id 12 0,104 0,200 300,200 300,104 SfHs,y6
 
jset 0,0 300,0 0,0 14,0 0,118 range jreg 12 =%wwepz6  
jset 90,0 14,0 14,0 20,0 20,104 range jreg 12 fF~3"!1#\I  
jset 90,0 14,0 14,0 20,0 10,118 range jreg 12 E~k_4z%M  
change con=3 ;JNI$DR  
;设置材料号 x{Gdr51%  
change mat 1 range jreg 1 w-[A"M]I  
change mat 2 range jreg 2 $ N7J:Q  
change mat 3 range jreg 3 >n`!S`)9{  
change mat 2 range jreg 4 fJjtrvNy)  
change mat 1 range jreg 5 !;[cm|<E  
change mat 2 range jreg 6 4nIs+  
change mat 3 range jreg 7 >_ )~
"Ra  
change mat 4 range jreg 8 ;,z[|"y  
change mat 2 range jreg 9 Glt%%TJb  
change mat 1 range jreg 10 dcK7Dd->  
change mat 5 range jreg 11 mAI<zh&SQ  
change mat 1 range jreg 12 R^nkcLFb/q  
;设置材料参数 zVSbEcr,C~  
prop mat 1 dens=2780 bulk=11.5e9 shear=9.5e9 fric=36 coh=1.3e7 tens=1e6 =|@%5&.P  
prop mat 2 dens=1400 bulk=2.78e9 shear=2.08e9 fric=35 coh=0.75e6 tens=3e5 ZO^Y9\L  
prop mat 3 dens=2560 bulk=4.29e9 shear=3.92e9 fric=32 coh=1e6 tens=0.8e6 zmREz
P#X  
prop mat 4 dens=2560 bulk=6.29e9 shear=6.92e9 fric=35 coh=1.2e7 tens=1e6 uTSTBI4t  
prop mat 5 dens=2660 bulk=6.5e9 shear=6.75e9 fric=35 coh=0.5e6 tens=0.5e6 ao@"j}c  
;设置节理材料号 ^CZ)!3qd1  
change jmat 1 range jreg 1 M*& tVG  
change jmat 2 range jreg 2 Iy2KOv@a5  
change jmat 3 range jreg 3 Oyfc!  
change jmat 4 range jreg 4 9PpPAF  
change jmat 5 range jreg 5 c(]NpH in  
change jmat 6 range jreg 6 N[(ovr  
change jmat 7 range jreg 7 D$ >gAv  
change jmat 8 range jreg 8 {95z\UE}  
change jmat 9 range jreg 9 )v4?+$g  
change jmat 10 range jreg 10 gEejLyOag  
change jmat 11 range jreg 11 9}\{0;9  
change jmat 12 range jreg 12 >9h@Dj[|!  
;设置节理参数 8SG*7[T7  
prop jmat 1 jkn=17.24e9 jks=7.33e9 jfric=36 . q=sC?D  
prop jmat 2 jkn=27.73e9 jks=11.55e9 jfric=35 qTG
Ei  
prop jmat 3 jkn=23.76e9 jks=10.33e9 jfric=32 L}>XH*  
prop jmat 4 jkn=55.46e9 jks=23.09e9 jfric=35 im}=  
prop jmat 5 jkn=120.68e9 jks=51.31e9 jfric=36 d#?.G3YmK  
prop jmat 6 jkn=110.93e9 jks=46.18e9 jfric=35       <($'jlZ  
prop jmat 7 jkn=95.04e9 jks=41.32e9 jfric=32 ]#UyY
gPk  
prop jmat 8 jkn=103.29e9 jks=47.06e9 jfric=35 'dnTu@mUT  
prop jmat 9 jkn=55.46e9 jks=23.09e9 jfric=35 *1Q~/<W  
prop jmat 10 jkn=80.45e9 jks=34.2e9 jfric=36   dHE\+{K%-  
prop jmat 11 jkn=38.69e9 jks=14.71e9 jfric=35 I 0/enL  
prop jmat 12 jkn=17.24e9 jks=7.33e9 jfric=36 T'n~QfU  
;施加初始应力条件  r=25000  按开挖煤层上表面埋深400米计算 ` 0YI?$G1  
bound stress 0,0,-7.05e6 range -0.1,300.1 199.9,200.1 ZTq"SQ>ym  
insitu stress -9.64e6,0,-7.05e6 szz=-9.64e6 & ygard -2e4,0,0 zgrad 0,-2e4 n+C,v.X  
;施加初始位移条件 kQr\ktN\  
bound xvel=0.0 range -0.1,0.1 -0.1,200.1 #i#4h<R  
bound xvel=0.0 range 299.9,300.1 -0.1,200.1 M.h)]S>  
bound yvel=0.0 range -0.1,300.1 -0.1,0.1 B{:JD^V!  
set grav 0.0 -9.81 rPk=9I  
hist unbal |_=o0lf  
solve rat 1e-5 hQm"K~SW
=  

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   *3S./C}  
insitu stress -9.64e6,0,-7.05e6 szz=-9.64e6 & ygard -2e4,0,0 zgrad 0,-2e4 *d31fBCk%   a<Ru)Q?=  
你检查下两个应力是否一致