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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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刚性下卧层对地基变形影响的计算方法
DOI: 10.3969/j.issn.1000-2006.2014.05.027, PP. 139-142
Keywords: 刚性下卧层,应力集中,地基沉降,地基变形放大系数,土层模量比
Abstract:
刚性下卧层的存在会造成地基中的附加应力,产生应力集中现象,并对上层地基的沉降变形造成影响。笔者利用地基变形放大系数分析刚性下卧层对地基变形的影响,通过数值模拟的方法,对不同模量比和地基土相对厚度时的地基变形放大系数进行了研究。结果表明:上下土层的模量比对变形放大系数有直接影响,不可忽略;当刚性下卧层上方土层厚度与基础宽度比值大于5.0时,地基变形放大系数的数值可认为接近于零。
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