TRD水泥土搅拌墙在武汉地区深基坑工程中的应用

发布时间：2018-01-11 08:20

本文关键词：TRD水泥土搅拌墙在武汉地区深基坑工程中的应用　出处：《岩土工程学报》2014年S2期 　论文类型：期刊论文

【摘要】：武汉地区深基坑落底式止水帷幕目前主要采用地下连续墙直接施工至基岩的方式。受地下连续墙施工工艺及垂直度控制等因素的影响,该方式往往不同程度的存在渗漏水现象,且造价相对较高。本文通过武汉长江航运中心大厦深基坑工程设计实例,初步研究了TRD水泥土搅拌墙作为落底式止水帷幕在武汉地区一级阶地土层中的施工可行性、成墙质量及渗透性情况。经过技术方案对比,采用TRD水泥土墙落底式止水帷幕,止水效果好,可先行施工,缩短了基坑支护结构施工工期,且较地下连续墙落底经济,为武汉地区落底式止水帷幕的设计提供一种新思路。
[Abstract]:Wuhan area of deep foundation pit bottom waterproof curtain is mainly used in underground continuous wall construction to bedrock. Influenced by the construction technology of underground continuous wall and verticality control and other factors, the way often have different degree of water leakage phenomenon, and the cost is relatively high. This article through the deep excavation of Wuhan Yangtze River shipping center building design as an example, preliminary research on TRD cement soil mixing wall as the construction feasibility of the bottom sealing curtain in the Wuhan area of Terrace Soil, quality of wall and permeability. After comparing technological scheme, using TRD cement wall bottom sealing curtain, good sealing effect, can shorten the first construction, the foundation pit support the construction period of the structure, and the underground continuous wall at the end of the economy, provide a new design idea for the Wuhan area the bottom of curtain.

【作者单位】：上海申元岩土工程有限公司;温州大学土木工程系;上海智平基础工程有限公司;
【基金】：上海市科研计划项目(14XD1420400)
【分类号】：TU753
【正文快照】： University,Wenzhou 325000,China;3.Shanghai Zhiping Geotechnical Engineering Co.,Ltd.,Shanghai 201501,China)0引言随着武汉的城市建设发展,地下空间的开发亦得到大规模的发展,基坑工程往深、大方向发展。武汉位于长江中游,为典型二元结构地层即上部为黏性土、淤泥质土,

【参考文献】