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深基坑开挖过程中变形监测分析

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以随州市华悦城项目的深基坑为研究背景,对深基坑开挖过程中桩身变形、桩顶位移、内支撑轴力的计算值与实际值进行比较,以及开挖方式对变形的影响.结果表明:使用软件计算前,相关深度、土层弹性模量、混凝土参数的选择存在偏差,导致发生"踢脚"破坏,可通过降低土体对支护结构的主动土压力,增加结构对土体的支撑作用解决这一问题.
DEFORMATION MONITORING ANALYSIS IN THE PROCESS OF DEEP FOUNDATION PIT EXCAVATION
In this study,the deep foundation pit of Suizhou Huayuecheng project is taken as the research background.The calculated values of pile deformation,pile top displacement and internal support axial force during deep foundation pit excavation are compared with the actual values,as well as the influence of excavation methods on deformation.The results show that there are deviations in the selection of relevant depth,elastic modulus of soil layer and concrete parameters before calculation by software,which leads to'kick'failure.This problem can be solved by reducing the active earth pressure of soil on the supporting structure and increasing the supporting effect of the structure on the soil.

deep foundation pitexcavationdeformation monitoring

张义伟

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随州市城市规划勘测设计研究院,湖北随州 441300

深基坑 开挖 变形监测

2024

建筑技术开发
北京市建筑工程研究院

建筑技术开发

影响因子:0.351
ISSN:1001-523X
年,卷(期):2024.51(2)
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