set grav 0,0,-10
fix x y z range z -.1 .1 fix y range y -.1 .1 fix y range y 2.9 3.1 fix x range x -.1 .1 fix x range x 9.9 10.1 set large hist unbal solve
save cab_str.sav
ini xdis 0 ydis 0 zdis 0 hist gp xdisp 0,1,5 def place_cables loop n (1,5)
z_d = 5.5 - float(n) z_t = z_d + 0.5 z_b = z_d - 0.5 command
free x range x -.1,.1 z z_b z_t solve
sel cable beg 0.0,0.5,z_d end 7.0,0.5,z_d nseg 7 sel cable beg 0.0,1.5,z_d end 7.0,1.5,z_d nseg 7 sel cable beg 0.0,2.5,z_d end 7.0,2.5,z_d nseg 7 sel cable prop emod 2e10 ytension 1e8 xcarea 1.0 & gr_k 2e10 gr_coh 1e10 gr_per 1.0 end_command end_loop end
place_cables save cab_end.sav
plot sketch sel cable force red
2-12圆形隧道开挖模拟计算 ;建立模型
gen zon radcyl p0 0 0 0 p1 6 0 0 p2 0 1 0 p3 0 0 6 &
size 4 2 8 4 dim 3 3 3 3 rat 1 1 1 1.2 group outsiderock gen zone cshell p0 0 0 0 p1 3 0 0 p2 0 1 0 p3 0 0 3 &
size 1 2 8 4 dim 2.7 2.7 2.7 2.7 rat 1 1 1 1 group concretliner fill group insiderock gen zon reflect dip 90 dd 90 orig 0 0 0 gen zon reflect dip 0 dd 0 ori 0 0 0
gen zon brick p0 0 0 6 p1 6 0 6 p2 0 1 6 p3 0 0 13 size 4 2 6 group outsiderock1 gen zon brick p0 0 0 -12 p1 6 0 -12 p2 0 1 -12 p3 0 0 -6 size 4 2 5 group outsiderock2 gen zon brick p0 6 0 0 p1 21 0 0 p2 6 1 0 p3 6 0 6 size 10 2 4 group outsiderock3 gen zon reflect dip 0 dd 0 orig 0 0 0 range group outsiderock3
gen zon brick p0 6 0 6 p1 21 0 6 p2 6 1 6 p3 6 0 13 size 10 2 6 group outsiderock4
gen zon brick p0 6 0 -12 p1 21 0 -12 p2 6 1 -12 p3 6 0 -6 size 10 2 5 group outsiderock5 gen zon reflect dip 90 dd 90 orig 0 0 0 range x -0.1 6.1 z 6.1 13.1 gen zon reflect dip 90 dd 90 orig 0 0 0 range x -0.1 6.1 z -6.1 -12.1 gen zon reflect dip 90 dd 90 orig 0 0 0 range x 6.1 21.1 z -12.1 13.1 ;绘制模型图 plot block group plot add axes red
;plot set rotation 0 0 45 用于显示三维模型 ;设置重力
set gravity 0 0 -10 ;给定边界条件
fix z range z -12.01,-11.99 fix x range x -21.01,-20.99 fix x range x 20.99,21.01 fix y range y -0.01 0.01 fix y range y 0.99,1.01 ;求解自重应力场 model mohr
ini density 1800 ;围岩的密度
prop bulk=1.47e8 shear=5.6e7 fric=20 coh=5.0e4 tension=1.0e4 ;体积、剪切、摩擦角、凝聚力、抗拉强度
set mech ratio=1e-4 solve
save Gravsol.sav plot cont zdisp outl on plot cont szz ;毛洞开挖计算
initial xdisp=0 ydisp=0 zdisp=0
model null range group insiderock any group concretliner any plot block group plot add axes red set mech ratio=5e-4 solve
save Kaiwsol.sav plot cont zdisp plot cont sdisp plot cont szz plot cont xzz ;模筑衬砌计算
model elas range group concretliner any plot block group plot add axes red
ini density 2500 range group concretliner any ;衬砌混凝土的密度
prop bulk=16.67e9,shear=12.5e9 range group concretliner any ;衬砌混凝土的体积弹模、剪切弹模
set mech ratio=1e-4 solve
save zhihusol.sav plot cont zdisp plot cont sdisp plot cont szz plot cont xzz ;完成计算分析
