软土深基坑现场监测案例分析研究
Case Study of Soft Soil Deep Foundation Pit Site Monitoring Analysis
郑博1
作者信息
- 1. 中国建筑材料工业地质勘查中心辽宁总队,辽宁 沈阳 110004
- 折叠
摘要
软土深基坑施工是土木工程中的难点问题,涉及到地基土的稳定性和变形特性等.基坑开挖过程中,现场监测是降低施工风险的重要措施.文中对软土地区深基坑开挖过程中的监测数据进行了研究,根据现场监测数据发现,连续墙水平位移呈凸形趋势,垂直位移呈凹形趋势;连续墙最大侧向位移与开挖深度呈较强的线性关系;支撑柱的水平位移随支撑刚度的增加而减小,而竖向位移几乎不受影响.
Abstract
Construction of deep foundation pits in soft soils is a important task in civil engineering involving the stability and deformation char-acteristics of foundation soils.On-site monitoring during foundation pit excavation is an important measure to reduce construction risk.In this paper,the monitoring data during deep foundation pit excavation in soft soil area is studied as an example.According to the site monitoring da-ta,it is found that the horizontal displacement of diaphragm wall is convex and vertical displacement is concave,the maximum lateral displace-ment of diaphragm wall is in a strong linear correlation with the depth of excavation,and the horizontal displacement of the support column de-creases with the increase of the support stiffness,while the vertical displacement is almost unaffected.
关键词
深基坑/软土/监测Key words
Deep foundation pit/Soft soil/Monitoring引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据