基坑开挖对天然地基承载力的影响研究  

Study on the Influence of Foundation Pit Excavation on Bearing Capacity of Natural Foundation

作　　者：闫凤屿 YAN Feng-yu(Hebei Zhongse Huaguan Geotechnical Engineering Co.Ltd.,Langfang 065201,China)

机构地区：[1]河北中色华冠岩土工程有限公司

出　　处：《工程建设与设计》2020年第3期59-61,共3页Construction & Design for Engineering

摘　　要：随着城市建筑工程施工的发展,基坑工程成为建筑工程中岩土工程施工关注的重要问题。基坑开挖工程会对附近建筑物的地基承载力造成一定的影响,同时,也对基坑内天然地基的承载力造成相应的影响。论文对确定地基承载力的方法进行了分析,并通过PLAXLS3D有限元分析软件对基坑开挖工程进行模拟,建立基坑地基承载力有限元模型,对基坑开挖产生的支护结构变形和坑底变形进行分析,并针对岩土工程地基施工的实际情况,对基坑开挖对坑内地基承载力造成的影响进行了研究。With the development of urban construction, foundation pit engineering has become an important issue in geotechnical engineering construction. Foundation pit excavation will have a certain impact on the bearing capacity of nearby buildings, but also on the bearing capacity of natural foundation in the foundation pit. In this paper, the method of determining the bearing capacity of foundation is analyzed, and the excavation of foundation pit is simulated by PLAXLS 3 D finite element analysis software. The finite element model of the bearing capacity of foundation pit is established to analyze the deformation of supporting structure and pit bottom caused by the excavation of foundation pit. The actual situation of foundation construction of geotechnical engineering is also analyzed, and the influence of foundation pit excavation on the bearing capacity of foundation pit is also discussed.

关 键 词：岩土工程 地基承载力 基础工程施工 基坑开挖 

分 类 号：TU463[建筑科学—结构工程]