应力泡极其不明显,而且水平位移为零,多步开挖和一步开挖成型效果一样,是怎么回事啊,请行家指点一下,谢谢
以下是我写的命令:
new
gen zone brick size 20 1 10 p0=(0,0,0) p1=(60,0,0) p2=(0,220,0) p3=(0,0,25) group zhongxisha
gen zone brick size 20 1 3 p0=(0,0,25) p1=(60,0,25) p2=(0,220,25) p3=(0,0,30) group xisha
gen zone brick size 20 1 6 p0=(0,0,30) p1=(60,0,30) p2=(0,220,30) p3=(0,0,36) group mei
gen zone brick size 20 1 4 p0=(0,0,36) p1=(60,0,36) p2=(0,220,36) p3=(0,0,40) group ni
gen zone brick size 20 1 6 p0=(0,0,40) p1=(60,0,40) p2=(0,220,40) p3=(0,0,46) group zhongxisha
gen zone brick size 20 1 25 p0=(0,0,46) p1=(60,0,46) p2=(0,220,46) p3=(0,0,96) group cusha
model m
prop bu=2.84e10 she=1.87e10 fric=38 coh=8.6e6 tension=4e6 range group cusha
ini density 2600 range group cusha
;粗砂
prop bu=1.42e10 she=0.93e10 fric=32 coh=6.4e6 ten=2e6 range group zhongxisha
ini density 2500 range group zhongxisha
;中细砂
prop bu=0.98e9 she=0.47e9 fric=32 coh=1.2e6 ten=1.13e6 range group ni
ini density 2480 range group ni
;泥
prop bu=0.26e10 she=0.12e10 fric=35 coh=1.0e6 ten=1.2e6 range group mei
ini density 1300 range group mei
;煤
prop bu=1.31e10 she=0.9e10 fric=24 coh=5.2e6 ten=4e6 range group xisha
ini density 2500 range group xisha
;细砂
fix z range z -0.1 0.1
fix x range x -0.1 0.1
fix x range x 59.9 60.1
fix y range y -0.1 0.1
fix y range y 219.9 220.1
ini szz -6.75e6 grad 0 0 2.5e4
ini sxx -2.02e6 grad 0,0,0.75e4
ini syy -2.02e6 grad 0,0,0.75e4
apply szz -6.75e6 range z 95.9 96.1
set gravity 0 0 -10
set large
hist id=1 unbal
solve
ini xdis 0 ydis 0 zdis 0 xv 0 yv 0 zv 0
model null range x 0 45 y 0 220 z 0 6
step 1000