不均匀地基应力集中与地基计算  

Stress Concentration and Foundation Calculation of Uneven Foundation

作　　者：杨忠 秦咏梅 

机构地区：[1]贵州地质工程勘察院,贵州贵阳550008

出　　处：《贵州地质》2001年第4期257-259,267,共4页Guizhou Geology

摘　　要：受浅埋岩层影响 ,土质地基易产生应力集中。一方面 ,应力集中程度过大易使地基发生强度破坏 ,另一方面 ,应力集中促使厚度偏薄地段产生较大的沉降 ,从而使整个地基的变形趋向协调。笔者根据多年的工作实践 ,以叶戈罗夫 (K K EГopoв)关于应力集中理论为基础 ,以工程为实例 ,分析了不均匀地基中应力集中程度与基础宽度、压缩层厚度的关系 ,计算了应力集中对地基强度与变形的影响 ,提出了在不均匀地基的计算过程中不宜忽视应力集中问题。Influenced by shallow buried rocks, the stress concentration is readily resulted from the soil foundation. Firstly, the stress concentration excessive impels the occurrence of strong destroy for the foundation. Secondly, the stress concentration accelerates the large subsidence in low-thickness blocks, thus tends to the harmony for all foundation deformation. According to the author's experiences and the K.K.EropoB's theory of the stress concentration, the relationships between the stress concentration degree, the foundation width and the compress bedding thickness are analysed in a case of a project, and effects of the stress concentration to the intension of basement and deformation are figured out, and finally the conclusion that the stress concentration is unfavorable to be ignored in the courts of uneven basement calculation is made.

关 键 词：不均匀地基 应力集中 基地 计算 

分 类 号：TU471.4[建筑科学—结构工程]