我在采空区顶底板建立了两个接触面，调了几次参数之后，发现采空区侧煤柱水平位移几乎为零，有人知道这是怎么回事嘛。

你给个这图看不出来，最好把命令流发出来

命令流我发过去 你帮我看看吧

这是塑性区
这是垂直应力
这是垂直位移
这是水平位移

new
pl bl gr
;各岩层、模块建立
gen zone brick p0 0 0 0 p1 64 0 0 p2 0 4 0 p3 0 0 8 size 32 2 4 group 粉砂岩
gen zone brick p0 64 0 0 p1 87 0 0 p2 64 4 0 p3 64 0 8 size 23 2 4 group 粉砂岩
gen zone brick p0 87 0 0 p1 161 0 0 p2 87 4 0 p3 87 0 8 size 37 2 4 group 粉砂岩
gen zone brick p0 0 0 8 p1 64 0 8 p2 0 4 8 p3 0 0 14 size 32 2 3 group 中粒砂岩
gen zone brick p0 64 0 8 p1 87 0 8 p2 64 4 8 p3 64 0 14 size 23 2 3 group 中粒砂岩
gen zone brick p0 87 0 8 p1 161 0 8 p2 87 4 8 p3 87 0 14 size 37 2 3 group 中粒砂岩
gen zone brick p0 0 0 14 p1 64 0 14 p2 0 4 14 p3 0 0 20 size 32 2 3 group 细粒砂岩
gen zone brick p0 64 0 14 p1 87 0 14 p2 64 4 14 p3 64 0 20 size 23 2 3 group 细粒砂岩
gen zone brick p0 87 0 14 p1 161 0 14 p2 87 4 14 p3 87 0 20 size 37 2 3 group 细粒砂岩
gen zone brick p0 0 0 20 p1 64 0 20 p2 0 4 20 p3 0 0 24 size 32 2 2 group 泥岩
gen zone brick p0 64 0 20 p1 87 0 20 p2 64 4 20 p3 64 0 24 size 23 2 2 group 泥岩
gen zone brick p0 87 0 20 p1 161 0 20 p2 87 4 20 p3 87 0 24 size 37 2 2 group 泥岩
gen zone brick p0 0 0 24 p1 64 0 24 p2 0 4 24 p3 0 0 31 size 32 2 7 group 煤层
gen zone brick p0 64 0 24 p1 75 0 24 p2 64 4 24 p3 64 0 31 size 11 2 7 group 煤层A
gen zone radcylinder p0 80 0 26 p1 85 0 26 p2 80 4 26 p3 80 0 31 dim 2 2 2 2 size 2 2 10 3 group 1
gen zone reflect normal (-1,0,0) origin=(80 0 26) range group 1
gen zone cylinder p0 80 0 26 p1 82 0 26 p2 80 4 26 p3 80 0 28 dim 2 2 2 size 2 2 10 group 2
gen zone reflect normal (-1,0,0) origin=(80 ,0,26) range group 2
gen zone brick p0 75 0 24 p1 85 0 24 p2 75 4 24 p3 75 0 26 size 10 2 2 group 煤层
gen zone brick p0 85 0 24 p1 87 0 24 p2 85 4 24 p3 85 0 31 size 2 2 7 group 煤层
gen zone brick p0 88 0 25 p1 162 0 25 p2 88 4 25 p3 88 0 29 size 37 2 4 group 煤层B
interface 1 face range plane norm (0,0,24) origin (85,0,24) dist 0.01 x 87 161
ini x add -1 range group 煤层B
ini z add -1 range group 煤层B
interface 1 prop kn 10e9 ks 10e9
gen zone brick p0 88 0 29 p1 162 0 29 p2 88 4 29 p3 88 0 32 size 37 2 3 group 煤层C
interface 1 face range plane norm (0,0,28) origin (85,0,28) dist 0.01 x 87 161
ini x add -1 range group 煤层C
ini z add -1 range group 煤层C
interface 1 prop kn 10e9 ks 10e9
gen zone brick p0 0 0 31 p1 64 0 31 p2 0 4 31 p3 0 0 35 size 32 2 2 group 砂质泥岩
gen zone brick p0 64 0 31 p1 87 0 31 p2 64 4 31 p3 64 0 35 size 23 2 2 group 砂质泥岩
gen zone brick p0 87 0 31 p1 161 0 31 p2 87 4 31 p3 87 0 35 size 37 2 2 group 砂质泥岩
gen zone brick p0 0 0 35 p1 64 0 35 p2 0 4 35 p3 0 0 45 size 32 2 5 group 细粒砂岩
gen zone brick p0 64 0 35 p1 87 0 35 p2 64 4 35 p3 64 0 45 size 23 2 5 group 细粒砂岩
gen zone brick p0 87 0 35 p1 161 0 35 p2 87 4 35 p3 87 0 45 size 37 2 5 group 细粒砂岩
gen zone brick p0 0 0 45 p1 64 0 45 p2 0 4 45 p3 0 0 65 size 32 2 10 group 基岩
gen zone brick p0 64 0 45 p1 87 0 45 p2 64 4 45 p3 64 0 65 size 23 2 10 group 基岩
gen zone brick p0 87 0 45 p1 161 0 45 p2 87 4 45 p3 87 0 65 size 37 2 10 group 基岩
;链接各点
attach face range z 0 23.9
attach face range z 24.1 27.9
attach face range z 28.1 65
;设置本构模型
model mohr
;各岩层赋参数
;基岩
prop dens 2689 bulk 2.86e9 she 1.47e9 coh 0.82e6 fric 32 ten 0.73e6 range group 基岩
;细粒砂岩
prop dens 2689 bulk 2.46e9 she 1.19e9 coh 0.82e6 fric 30 ten 0.63e6 range group 细粒砂岩
;砂质泥岩
prop dens 2506 bulk 1.71e9 she 0.9e9 coh 0.95e6 fric 26 ten 0.56e6 range group 砂质泥岩
;煤层
prop dens 1420 bulk 0.85e9 she 0.4e9 coh 0.68e6 fric 20 ten 0.48e6 range group 煤层
;煤层A
prop dens 1420 bulk 0.85e9 she 0.4e9 coh 0.68e6 fric 20 ten 0.48e6 range group 煤层A
;煤层B
prop dens 1420 bulk 0.85e9 she 0.4e9 coh 0.68e6 fric 20 ten 0.48e6 range group 煤层B
;煤层C
prop dens 1420 bulk 0.85e9 she 0.4e9 coh 0.68e6 fric 20 ten 0.48e6 range group 煤层C
;泥岩
prop dens 2516 bulk 1.71e9 she 0.95e9 coh 0.85e6 fric 26 ten 0.65e6 range group 泥岩
;细粒砂岩
prop dens 2619 bulk 2.06e9 she 1.07e9 coh 0.82e6 fric 30 ten 0.63e6 range group 细粒砂岩
;中粒砂岩
prop dens 2635 bulk 2.25e9 she 1.19e9 coh 0.87e6 fric 30 ten 0.74e6 range group 中粒砂岩
;粉砂岩
prop dens 2732 bulk 2.41e9 she 1.22e9 coh 0.93e6 fric 33 ten 0.75e6 range group 粉砂岩
;group1
prop dens 1420 bulk 0.85e9 she 0.42e9 coh 0.65e6 fric 20 ten 0.38e6 range group 1
;group 2
prop dens 1420 bulk 0.85e9 she 0.42e9 coh 0.65e6 fric 20 ten 0.38e6 range group 2
;设置边界条件
fix z range z= (-0.1 0.1)
fix x range x= (-0.1 0.1)
fix x range x= (160.9 161.1)
fix y range y= (-0.1 0.1)
fix y range y= (3.9 4.1)
;初始条件
set gravity 0 , 0, -10
apply szz -7.45e6 range z 64.9 65.1
;设置水平和垂直应力
ini szz = -7.45e6 grad 0,0,2.5e4 ;2500*10*290=7.45MPa
ini sxx = -10.867e6 grad 0,0,3.5e4
ini syy = -10.867e6 grad 0,0,3.5e4
ini xd 0 zd 0 yd 0
plot block state
solve
save 初始应力.sav
ini xd 0 yd 0 zd 0 xv 0 yv 0 zv 0
mo nu ran x 87 161 y 0 4 z 24 28
set large
solve
save 采空区.sav
mo nu ran group 2
mo nu ran x 78 82 y 0 4 z 24 26
set large
solve
save 巷道.sav

这是怎么回事 ，连接时的命令是：gen merge 10e-7 range z 0 65.

回复 如果没有你luc :
这是怎回事？巷道周围变形时节点都分开了 是不是节点没连接上？ 连接节点时我是用的命令是：
gen merge 1e-7 range z 0 24 y 0 4 x 0 160
gen merge 1e-7 range z 24 28 y 0 4 x 0 87
gen merge 1e-7 range z 28 65 y 0 4 x 0 160

你这个还是没有把整个模型连接上，你还是跟之前一样是分块连接的。跟你说了，建立出了煤层B之外的模型，采用这个连接，然后单独建立煤层B及接触面，这两个模型都导出成FLAC3d的网格文件，然后把两个网格文件合成一个整体模型，这样就建好了

我在做沿空留巷，懂得比较少，希望以后能请教

你确定你做的那个矿顺槽是半圆拱？

很明显，建模建错了