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何为地基塑性变形区?
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何为地基塑性变形区?
时间:2021-09-17 18:37
关键词:
地基承载力
土木建筑工程
大学试题
工学
答案解析
<p> 地基土中应力状态在剪切阶段,又称塑性变性阶段。在这一阶段,从基础两侧底边缘开始,局部区域土中剪应力等于该处土的抗剪强度,土体处于塑性极限平衡状态,宏观上p-s曲线呈现非线性的变化,这个区域就称为塑性变形区。随着荷载增大,基础下土的塑性变形区扩大,但塑性变形区并未在基础中连成一片。</p>
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( )是指天然地基很软弱,不能满足地基承载力和变形的设计要求,地基需经过人工处理的过程。
为提高饱和软土地基的承载力以及减少地基的变形,下列地基处理方法___比较适宜。
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何为地基塑性变形区?
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为提高饱和软土地基的承载力以及减少地基的变形,下列地基处理方法()比较适宜。
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