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这是一个flac3D手册上的例子:是关于单桩静载试验的模拟。在第一步生成自重初始应力时(这是命令的一部分):
Vertically and horizontally loaded pile in clay
;建立桩周粘土模型
gen zone radcyl p0 (0,0,0) p1 (8,0,0) p2 (0,0,-5) p3 (0,8,0) &
p4 (8,0,-5) p5 (0,8,-5) p6 (8,8,0) p7 (8,8,-5) &
p8 (.3,0,0) p9 (0,.3,0) p10 (.3,0,-5) p11 (0,.3,-5) &
size 3 10 6 15 ratio 1 1 1 1.15
gen zone radcyl p0 (0,0,-5) p1 (8,0,-5) p2 (0,0,-8) p3 (0,8,-5) &
p4 (8,0,-8) p5 (0,8,-8) p6 (8,8,-5) p7 (8,8,-8) &
p8 (.3,0,-5) p9 (0,.3,-5) p10 (.3,0,-8) p11 (0,.3,-8) &
size 3 6 6 15 ratio 1 1 1 1.15 fill
gen zone reflect dd 270 dip 90
group clay
;建立桩土分界面
interface 1 face range cylinder end1 (0,0,0) end2 (0,0,-5.1) radius .31 &
cylinder end1 (0,0,0) end2 (0,0,-5.1) radius .29 not
interface 2 face range cylinder end1 (0,0,-4.9) end2 (0,0,-5.1) radius .31
;建立桩模型
gen zone cyl p0 (0,0,6) p1 (.3,0,6) p2 (0,0,1) p3 (0,.3,6) &
p4 (.3,0,1) p5 (0,.3,1) &
size 3 10 6
gen zone cyl p0 (0,0,6.1) p1 (.3,0,6.1) p2 (0,0,6) p3 (0,.3,6.1) &
p4 (.3,0,6) p5 (0,.3,6) &
size 3 1 6
gen zone reflect dd 270 dip 90 range z 1 6.1
group pile range z 1 6.1
ini z add -6.0 range group pile(桩下移,与粘土接触)
save pile_geom.sav
;下面是第一步生成初始自重应力
model mohr range group clay
prop bulk 8.333e7 shear 3.846e7 coh 30000 fric 0 range group clay
model elas range group pile
prop bulk 8.333e7 shear 3.846e7 range group pile
interface 1 prop kn 1e8 ks 1e8 fric 20 coh 30000
interface 2 prop kn 1e8 ks 1e8 fric 20 coh 30000
;
ini dens 1230 range group clay
ini dens 1230 range group pile
model null range z -0.1 0.15
;
fix z range z -8.1 -7.9
fix x range x -8.1 -7.9
fix x range x 7.9 8.1
fix y range y -.1 .1
fix y range y 7.9 8.1
set grav 0 0 -10
;初始化应力
ini szz 0. grad 0 0 12300. range z -5.5 0.
ini szz 17600 grad 0 0 15500 range z -8 -5.5
ini sxx 0. grad 0 0 5271.4 range z -5.5 0.
ini sxx 7542.86 grad 0 0 6642.86 range z -8 -5.5
ini sxx add 31428.6 grad 0 0 5714.3 range z -8 -5.5
ini syy 0. grad 0 0 5271.4 range z -5.5 0.
ini syy 7542.86 grad 0 0 6642.86 range z -8 -5.5
ini syy add 31428.6 grad 0 0 5714.3 range z -8 -5.5
;
water density 1000
water table origin 0,0,-5.5 normal 0 0 -1
ini dens 1550 range z -8 -5.5
hist unbal
;
solve rat 1.e-6
save pile0.sav
上面用红字标出的命令行。小弟实在是想不出什么意思。望各位高手出手相助!!!!! |
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