new
gen zone brick p0 0 0 0 p1 20 0 0 p2 0 5 0 p3 0 0 10 size 40 5 20
model null range x 0 10 y 0 5 z 4 10
fix z range x -0.1 0.1 z 0 10
fix z range x 19.9 20.1 z 0 10
fix y range y -0.1 0.1
fix y range y 4.9 5.1 ;边界条件
group tt range x 10.5 20 y 0 5 z 4 10
model mohr range group tt
prop bulk 2e8 shear 1e8 coh 15e3 fric 25 range group tt
ini dens 1800 range group tt ;定义填土的性质
group dj range x 0 20 y 0 5 z 0 4
model mohr range group dj
prop bulk 2e8 shear 1e8 coh 12e3 fric 37 range group dj
ini dens 2000 range group dj ;定义地基的性质
group mk range x 10 10.5 y 0 5 z 4 10
model elas range group mk
prop bulk 4e9 shear 2e9 range group mk
ini dens 2400 range group mk ;定义挡墙的性质
sel geogrid id=1 range x 10.5 14.2 y 0 5 z 10
sel node init zpos add -5 range z 10
sel geogrid id=2 range x 10.5 14.2 y 0 5 z 10
sel node init zpos add -4 range z 10
sel geogrid id=3 range x 10.5 14.2 y 0 5 z 10
sel node init zpos add -3 range z 10
sel geogrid id=4 range x 10.5 14.2 y 0 5 z 10
sel node init zpos add -2 range z 10
sel geogrid id=5 range x 10.5 14.2 y 0 5 z 10
sel node init zpos add -1 range z 10 ;定义土工格栅
sel geogrid prop dens 1000 iso 18e7 0.33 thick 5e-3 cs_sk 2.3e6 cs_scoh 0
cs_sfric 5 ;定义土工格栅的性质
set grav 0 0 -10
solve
