复杂环境软土基坑支护设计与应用研究  

Design and Application Research of a Foundation Pit Sustaining Near the Complex Circumstances with Soft Soil

作　　者：郑稳 ZHENG Wen(Fujian construction engineering quality and safety general station,Fuzhou 350000)

机构地区：[1]福建省建设工程质量安全总站,福建福州350000

出　　处：《福建建筑》2021年第11期117-121,共5页Fujian Architecture & Construction

摘　　要：基于某复杂环境软土基坑开挖工程,对比分析不同支护方法的适用性,采用适合复杂环境软土基坑开挖的支护方法进行设计,并通过有限元分析验证该支护方法的可行性。通过现场应用和相关参数监测结果,对所提出的复杂环境软土基坑开挖支护方法的实用性进行评定。结果表明,有限元分析和现场监测数值较为接近,采用的支护方法能有效控制基坑开挖过程中土体的变形,同时支护体系中的围护桩、圈梁等受力性能满足规范要求,为后续其它同类型基坑工程提供借鉴和参考。Based on the excavation engineering of foundation pit used in the complex circumstances with soft soil,the comparing analysis on the feasibility of different foundation pit sustaining has been conducted,a foundation pit sustaining which is suitable to the excavation engineering with the complex circumstances with soft soil.The feasibility above has been verified by the finite element analysis,meanwhile,the practicability has been evaluated by the results obtained from the field application and monitor.It is found that the results acquired by finite element analysis and field monitor are close,and the deformation of the soil and the mechanical property of the retaining pile and the ring beam used in the foundation pit sustaining can be effectively controlled to meet the requirement in the design code under the excavation of foundation pit,which can be referred for the other similar excavation engineering of foundation pit.

关 键 词：基坑 复杂环境软土 基坑支护 有限元分析 现场监测 

分 类 号：U47[机械工程—车辆工程]