深基坑降水对基坑及周边环境的影响
THE IMPACT OF DEEP FOUNDATION PIT DEWATERING ON THE FOUNDATION PIT AND SURROUNDING ENVIRONMENT
岳晨萍1
作者信息
- 1. 北京中联勘工程技术有限责任公司,北京 100000
- 折叠
摘要
通过复杂地质条件下某深基坑的施工过程,采用有限元模型分析深基坑降水对其施工过程变形的影响.研究结果表明:深基坑降水渗流作用导致施工部位坑外与坑内水头差的形成,增加了防护装置的变形量和渗流力的作用.随着开挖深度的增加,水头差和渗流力也随之增大,从而加剧了渗流对防护墙变形的影响.流体与固体之间的相互作用是影响深基坑沉降的关键因素.
Abstract
This article uses a finite element model to analyze the impact of deep foundation pit dewatering on the deformation during the construction process of a deep foundation pit under complex geological conditions.The research results indicate that the seepage effect of deep foundation pit dewatering leads to the formation of water head difference between the outside and inside of the construction site,which increases the deformation of the protective device and the effect of seepage force.As the excavation depth increases,the head difference and seepage force also increase,thereby exacerbating the impact of seepage on the deformation of the protective wall.The interaction between fluid and solid is a key factor affecting the settlement of deep foundation pits.
关键词
深基坑/变形规律/地面沉降Key words
deep foundation pit/deformation law/ground settlement引用本文复制引用
出版年
2024
NETL
NSTL
万方数据