A.1:1
B.1:0.75
C.1:0.67
D.1:0.5
[单选题]开挖深度在5m以内的沟槽,坡顶无荷载时,中密的碎石类土的边坡坡度最陡为( )。A.1:1B.1:0.75C.1:0.67D.1:0.5
[单选题]开挖深度在5m以内的沟槽,坡顶无荷载时,中密的砂土的边坡坡度最陡为( )。A.1:1B.1:0.75C.1:0.67D.1:0.5
[单选题]开挖深度在5m以内的沟槽,坡顶无荷载时,硬塑的粉土的边坡坡度最陡为( )。A.1:1B.1:0.75C.1:0.67D.1:0.5
[单选题]当土为中密的砂土,深度在5m以内的沟槽边坡的坡顶无荷载时最陡坡度是()。A.1:1.00B.1:0.75C.1:0.67D.1:1.25
[单选题]当土为中密的砂土,深度在5m以内的沟槽边坡的坡顶无荷载时最陡坡度是()。A.1:1.00B.1:0.67C.1:0.78D.1:0.75
[单选题]地质条件良好.土质均匀,且开挖深度3.5m.沟槽不设支撑时,开挖( )的沟槽边坡坡顶,无荷载时的最陡坡度(高:宽)为1:1。A.老黄土B.中密碎石类
[单选题]在相同施工条件下,采用放坡法开挖沟槽,边坡坡度最陡的土质是()。A.硬塑的粉土B.硬塑的黏土C.老黄土D.经井点降水后的软土
[单选题]地质条件良好.土质均匀,地下水位低于沟槽底面高程,且开挖深度3.5m.沟槽不设支撑时,开挖( )的沟槽边坡坡顶,无荷载时的最陡坡度(高:宽)为1:1
[单选题]开挖坡高小于5m的坚硬黏性土,土质边坡容许坡度值为( )。A.1∶0.35~1∶0.50B.1∶0.50~1∶0.75C.1∶0.75~1∶1.00
[判断题]深度在5m以内时不必放坡。A.对B.错