[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 I9xu3izAmR  
round 0.05 8Ara^Xh}q  
blo 0,0 0,200 300,200 300,0 +p jB/#4  
;底板 [!3cWJCt  
;01砂岩（69m） >cmz JS  
cr 0,0 300,0 1oiS
mW\  
cr 0,69 300,69 ZWS:-]P.  
;02煤层 mDv<d=p!  
cr 0,71 300,71 4B[pQlg  
;03泥岩 ( [a$Z2m  
cr 0,75 300,75 L.-qTh^P  
;04煤层 b~*iL!<  
cr 0,76 300,76 Zon7G6s9`  
;05砂岩（直接底） #tsP  
cr 0,80 300,80 HRbv%  
;06开挖煤层 HfH_jnR*  
cr 0,82 300,82 ;3& wO~lW  
;顶板 OIw[sum2  
;07泥岩（直接顶） @Z#h?:  
cr 0,86 300,86 `~lG5|  
;08砂质泥岩 f9Xa}*  
cr 0,89 300,89 baTd;`Pn  
;09煤层 IaRwPDj6  
cr 0,90 300,90 $>_`
.*I/  
;10砂岩 GoX<d{  
cr 0,93 300,93 .+?]"1>]  
;11泥砂岩互层
m*iSW]&  
cr 0,104 300,104 q^^R
|X1  
;12砂岩 `.pd %\  
cr 0,200 300,200 A-L)2.M  
;开挖分块 @m%B>X28F  
cr 75,80 75,82 3"my!}03  
cr 225,80 225,82 #"TYk@whWf  
;节理划分 d^tY?*n  
;01砂岩(69m) 0i8\Lu6  
jreg id 1 0,0 0,69 300,69 300,0 AEWrrE
 
jset 0,0 300,0 14,0 14,0 0,14 range jreg 1 Z]2z*XD  
jset 90,0 14,0 14,0 20,0 20,0 range jreg 1 (Lh!7g/0N  
jset 90,0 14,0 14,0 20,0 10,14 range jreg 1 q2`mu4B  
;02煤层(2m) jG& 8`*|*  
jreg id 2 0,69 0,71 300,71 300,69 range jreg 2 |cuKC \  
jset 90,0 2,0 2,0 15,0 7.5,69 range jreg 2 1lA? 5:  
;03泥岩(4) ir\)Hz2P  
jreg id 3 0,71 0,75 300,75 300,71 &Y9%Y/Y  
jset 90,0 4,0 4,0 15,0 15,71 range jreg 3 e~># M$  
;04煤层(1m) [K4k7$  
jreg id 4 0,75 0,76 300,76 300,75 IS[q'Cv*  
jset 90,0 1,0 1,0 10,0 10,75 range jreg 4 =I&BO[d  
;05砂岩(4m) ? ][/hL@[  
jreg id 5 0,76 0,80 300,80 300,76 KkzG#'I1  
jset 0,0 300,0 2,0 2,0 0,78 range jreg 5 RHvKWt  
jset 90,0 2,0 2,0 10,0 5,76 range jreg 5 g co;8e_  
jset 90,0 2,0 2,0 10,0 10,78 range jreg 5 4T$jY}U  
;06开挖煤层(2m) ~@<o-|#  
jreg id 6 0,80 0,82 300,82 300,80 N^F5J  
jset 0,0 300,0 300,0 0.5,0 0,80.5 range jreg 6 x+'Ea.^  
jset 90,0 0.5,0 0.5,0 1,0 0.5,80 range jreg 6 g~9rt_OV  
jset 90,0 0.5,0 0.5,0 1,0 1,80.5 range jreg 6
%Y#W#G  
;07泥岩(4m) As^eL/m2L  
jreg id 7 0,82 0,86 300,86 300,82 ;F%EW`7  
jset 0,0 300,0 300,0 1,0 0,83 range jreg 7 wNFx1u^/)  
jset 90,0 1,0 1,0 1,0 2.5,82 range jreg 7 ,.=7{y~  
jset 90,0 1,0 1,0 1,0 5,83 range jreg 7 V}2[chbl
 
;08砂质泥岩(3m) 7rGp^  
jreg id 8 0,86 0,89 300,89 300,86 \>.[QQVI"l  
jset 0,0 300,0 0,0 1.5,0 0,87.5 range jreg 8 \oGU6h<  
jset 90,0 1.5,0 1.5,0 10,0 10,86 range jreg 8 ^aJ]|*m  
jset 90,0 1.5,0 1.5,0 10,0 5,87.5 range jreg 8 D]'8BS3  
;09煤层(1m) E"/k"1@  
jreg id 9 0,89 0,90 300,90 300,89 } 21!b :a  
jset 90,0 1,0 1,0 10,0 10,89 range jreg 9 ,|zwY~lt5  
;10砂岩(3m) QiV
KaBS8  
jreg id 10 0,90 0,93 300,93 300,90 &:g1*+  
jset 90,0 3,0 3,0 15,0 7.5,90 range jreg 10 &h6 `hP_  
;11砂泥岩互层(11m) aDLlL?r3  
jreg id 11 0,93 0,104 300,104 300,93 !VudZ]Sg  
jset 0,0 300,0 0,0 4,0 0,97 range jreg 11 v-!Spf  
jset 90,0 4,0 4,0 15,0 15,93 range jreg 11 &i`(y>\  
jset 90,0 4,0 4,0 15,0 7.5,97 range jreg 11 # M3d=  
;12砂岩(96m) .p'McCV=  
jreg id 12 0,104 0,200 300,200 300,104 q/@r#  
jset 0,0 300,0 0,0 14,0 0,118 range jreg 12 (otD4VR_  
jset 90,0 14,0 14,0 20,0 20,104 range jreg 12 &g*1
If  
jset 90,0 14,0 14,0 20,0 10,118 range jreg 12 D=5%lL  
change con=3 N0K <zxR  
;设置材料号 r`+G9sj3U  
change mat 1 range jreg 1 W5Jb5  
change mat 2 range jreg 2 A~0yMww:$  
change mat 3 range jreg 3 qI74a F  
change mat 2 range jreg 4 *|L;&XM&/  
change mat 1 range jreg 5 Ts=TaRwWf  
change mat 2 range jreg 6 awQB0ow'$P  
change mat 3 range jreg 7 mpIR: Im  
change mat 4 range jreg 8 aqi]5,  
change mat 2 range jreg 9 /6x[C  
change mat 1 range jreg 10 g~=- ,j|  
change mat 5 range jreg 11 !{g>g%2!  
change mat 1 range jreg 12 <{Rz1CMc  
;设置材料参数 dd6l+z  
prop mat 1 dens=2780 bulk=11.5e9 shear=9.5e9 fric=36 coh=1.3e7 tens=1e6 jEP'jib%  
prop mat 2 dens=1400 bulk=2.78e9 shear=2.08e9 fric=35 coh=0.75e6 tens=3e5 0Uk;&a0s  
prop mat 3 dens=2560 bulk=4.29e9 shear=3.92e9 fric=32 coh=1e6 tens=0.8e6 *
J4\KU  
prop mat 4 dens=2560 bulk=6.29e9 shear=6.92e9 fric=35 coh=1.2e7 tens=1e6 v806f8  
prop mat 5 dens=2660 bulk=6.5e9 shear=6.75e9 fric=35 coh=0.5e6 tens=0.5e6 ~Hx>yn94e  
;设置节理材料号 &RHx8zScP  
change jmat 1 range jreg 1 rC/z8m3z  
change jmat 2 range jreg 2 K[9P{0hA  
change jmat 3 range jreg 3 }^odUIj  
change jmat 4 range jreg 4 !0KNA1w,  
change jmat 5 range jreg 5 a?W<<9]  
change jmat 6 range jreg 6 \K Kt&bKL  
change jmat 7 range jreg 7 Ycxv=Et  
change jmat 8 range jreg 8 pYUQSsqC  
change jmat 9 range jreg 9 uSxldc  
change jmat 10 range jreg 10 ue!4By8T  
change jmat 11 range jreg 11 o6:]Hvqjr  
change jmat 12 range jreg 12 3 }#rg  
;设置节理参数 Te^_gdf  
prop jmat 1 jkn=17.24e9 jks=7.33e9 jfric=36 [raj: 7yQ  
prop jmat 2 jkn=27.73e9 jks=11.55e9 jfric=35 S1i~r+jf  
prop jmat 3 jkn=23.76e9 jks=10.33e9 jfric=32 d=g,s[FMm  
prop jmat 4 jkn=55.46e9 jks=23.09e9 jfric=35 eh
Mpo BL  
prop jmat 5 jkn=120.68e9 jks=51.31e9 jfric=36 %~lTQCPE  
prop jmat 6 jkn=110.93e9 jks=46.18e9 jfric=35        N=!k2+  
prop jmat 7 jkn=95.04e9 jks=41.32e9 jfric=32 ,C'mE''x  
prop jmat 8 jkn=103.29e9 jks=47.06e9 jfric=35 PL3oV<\4s>  
prop jmat 9 jkn=55.46e9 jks=23.09e9 jfric=35 '|&?$g(\h  
prop jmat 10 jkn=80.45e9 jks=34.2e9 jfric=36   Vk1 c14i>  
prop jmat 11 jkn=38.69e9 jks=14.71e9 jfric=35 `Q>qmf_Fi  
prop jmat 12 jkn=17.24e9 jks=7.33e9 jfric=36 eQ=6< ^KZ  
;施加初始应力条件  r=25000  按开挖煤层上表面埋深400米计算 @.QuIm8,  
bound stress 0,0,-7.05e6 range -0.1,300.1 199.9,200.1 OeQ~g-n  
insitu stress -9.64e6,0,-7.05e6 szz=-9.64e6 & ygard -2e4,0,0 zgrad 0,-2e4 Y5mk*Q#q  
;施加初始位移条件 M=5hp&=  
bound xvel=0.0 range -0.1,0.1 -0.1,200.1 Ff[GR$m
 
bound xvel=0.0 range 299.9,300.1 -0.1,200.1 O%} hNTS"  
bound yvel=0.0 range -0.1,300.1 -0.1,0.1 `cRRdD:dA  
set grav 0.0 -9.81 v/Xz.?a\jF  
hist unbal j4(f1  
solve rat 1e-5 ^|cax|
>  

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:J "  
insitu stress -9.64e6,0,-7.05e6 szz=-9.64e6 & ygard -2e4,0,0 zgrad 0,-2e4 *d31fBCk%   _6\"U5*Y  
你检查下两个应力是否一致