某深基坑工程边坡变形失稳致因及处理对策
摘要:针对某深基坑工程在施工过程中,出现支护结构和邻近建筑物变形沉降增大、边坡有失稳滑移的危险状况,采用场地水文地质特性调查、边坡支护方案模拟计算与施工监测数据分析相结合的研究方法,确定场地中对施工扰动敏感性强的原状粉土和粉细砂层的沉降是导致基坑边坡失稳的主因,采用土层锚拉加固方案取代对地层扰动较大的注浆排险方案,确保了基坑安全开挖和边坡的最终稳定。
Abstract:With the dangerous situation of slope instability sliding and support deformation as well as the building subside increasing in the process of a deep foundation pit excavation, the multi-analysis and research ways which are composed of the field hydrogeology character surveying and support structure simulation with construction monitoring data analysis are used in this paper. The main causes which result in slope instability sliding are found the original silt and fine sand layer sedimentation which are strongly sensibility for construction disturbance. The treatment measures using the soil anchorage replaced of the concrete injecting are proposed and successfully applied on the field, which ensure for the deep foundation pit excavating safety and the slope final stabilization.
中文标题：
某深基坑工程边坡变形失稳致因及处理对策
Disposal Measures and Instability Causation of the Slope Deformation of a Deep Foundation Pit Engineering
作者：
张怀文1,2,高全臣1,杨文莉1
ZHANG Huaiwen1,2,GAO Quanchen1,YANG Wenli1
作者简介:张怀文,1970年生,男,汉族,天津人,高级工程师,从事边坡支护地基处理等项工程的设计、施工。E-mail:zhanghuaiwe@sohu.com
通讯地址：
1. 中国矿业大学(北京)力学与建筑工程学院, 北京 100083; 2. 中航勘察设计研究院, 北京 100098
1.SchoolofMechanicsandCivilEngineering,CUMTB,Beijing100083,China; 2.InstituteofAIGE,Beijing100098,China
中图分类号:TU941
doi:10.3969/j.issn.1007-2993.2010.03.005
出版物：岩土工程技术
收稿日期:2010-03-31
网络出版日期:2021-07-06
关键词:深基坑,边坡支护,变形失稳,锚拉加固
Key words:deep foundation pit,slope support,deformation instability,anchorage reinforce
文档包含图片数量：图片(0)张
文档包含表格数量：表格(0)个
参考文献：
基金项目：
- 文件大小:
- 567.79 KB
- 下载次数:
- 60
-
高速下载
|
