基坑开挖对邻近桩基影响的分析研究  

The impact analysis of excavation to the adjacent pile foundation

作　　者：姚金梅[1] 章仕灵[1] 

机构地区：[1]成都理工大学工程技术学院,四川乐山614000

出　　处：《山西建筑》2014年第27期102-103,共2页Shanxi Architecture

摘　　要：通过Plaxis有限元计算程序模拟内撑式排桩支护基坑的开挖,分别研究了开挖深度、软土模量、软土厚度、桩长、桩间距等因素对邻桩变形和内力的影响,分析研究表明,基坑开挖时,邻桩侧移和内力受软土模量、软土厚度、开挖深度、桩间距和刚度等因素的影响,所以应综合考虑多种因素的影响,将对邻桩的影响降至安全范围内。Numeric simulate cantilever row piles excavation used the finite element software Plaxis. Analyze the influences of depth of excavation, the elastic modulus and depth of soft clay,the length and the distance between piles and distance from excavation face on deformation and stress. The analysis shows that the deformation and stress for the nearby pile was influenced by the elastic modulus,the depth of soft clay,the depth of excavation and the distance between piles when foundation excavation. Therefore,in the excavation,should be taken into account the influence of various to minimize the influence on adjacent pile.

关 键 词：基坑开挖 邻近桩基 有限元分析 

分 类 号：TU463[建筑科学—结构工程]