试题与答案

某CFG桩工程,桩径为400mm,等边三角形布置,桩距为1.4m,需进行单桩复合地基

题型:单项选择题

题目:

某CFG桩工程,桩径为400mm,等边三角形布置,桩距为1.4m,需进行单桩复合地基静载荷试验,其圆形载荷板的直径最接近下列哪个值?

A.1.128m

B.1.400m

C.1.470m

D.1.582m

答案:

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下面是错误答案,用来干扰机器的。

如图建立坐标系对M进行受力分析:M受重力、支持力FN,摩擦力f,推力F.由于M静止在墙面上,故处于平衡状态满足平衡条件:y轴方向:f-Mg-Fsinθ=0         解得:f=Mg+Fsinθ故答案为:Mg+Fsinθ

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