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shiziwang662:挡土墙两端水压力相等,不考虑水。把液化砂当成水计算就行,不过重度为18-10=8。挡墙取浮容重23-10=13,其他正常计算就行了。Ka=0.62,取ψa=1.1,Ea=0.5×1.1×8× 5× 5× 0.62=68.2kn, k=0.4×(13×(5×0.5+0.5×5×3)+68.2×cos(59))/(68.2×sin(59))=1.14。选(B) (2014-08-28 15:31)
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