摘要
基于极限分析定理,以初期无支护基坑的竖直坑壁为研究对象,通过运用数学方法分析其特定滑动面—螺旋对数滑动面,得出了无支护基坑竖直开挖的临界深度和潜在破裂面的大小与形状,着重分析了含水率以及饱和度对无支护基坑开挖的影响。
Based on limit analysis theorem, taking the early vertical pit wall of foundation pit without supporting as the research object, this paper used mathematical methods to analyzes its specific sliding surface - logarithmic spiral sliding surface, and obtained the critical depth of vertical excavation of foundation pit without supporting as well as the size and shape of potential fracture surface. The influence of moisture content and saturation on the excavation of foundation pit without supporting is emphatically analyzed.
关键词
极限分析
含水率
饱和度
临界深度
limit analysis
moisture content
saturation
critical depth
