复杂条件下基坑桩墙一体化支护施工技术--以穗莞深城际皇岗口岸站主体围护结构工程为例  

Construction Technology of Pile-diaphragm Wall Integration Supporting the Foundation Pit under Complex Conditions:Taking Suiguanshen Intercity Huanggang Port Station Main Envelope Structure Project as an Example

作　　者：薛蕊 雷斌 邓乃匀 XUE Rui;LEI Bin;DENG Naiyun(Shenzhen Geokey Group Co.,LTD.,Shenzhen 518063,Guangdong,China;Shenzhen Geokey Foundation Engineering Co.,LTD.,Shenzhen 518101,Guangdong,China)

机构地区：[1]深圳市工勘岩土集团有限公司,广东深圳518063 [2]深圳市工勘基础工程有限公司,广东深圳518101

出　　处：《科技和产业》2025年第7期75-81,共7页Science Technology and Industry

摘　　要：地下连续墙在高层建筑地下室、地铁车站等工程深基坑支护中的应用有很大优势,但对于上软下硬地层、地下水位高的复杂地质条件和支护入岩率高、邻近建筑物和地铁运营范围内的复杂环境条件下的地下连续墙施工,存在易塌孔、成槽效率低、施工成本高的问题。为此,对基坑桩墙一体化支护的施工技术进行研究,以墙下灌注桩替代嵌入微风化岩层这部分深度地连墙,减小硬岩成槽的工作难度和工作量,降低临近建筑及地铁运营的安全风险。Underground diaphragm wall has great advantages in the application of deep foundation pit support in the basement of high-rise buildings,subway stations and other projects.However,for the construction of underground diaphragm wall under the complex geological conditions of soft upper and hard lower strata and high groundwater level,as well as the complex environmental conditions such as high support rate into rock,near the construction and adjacent to the operation range of subway,there are some problems such as easy to collapse holes,low trough efficiency and high construction cost.Therefore,the construction technology of pile-diaphragm wall integration supporting the foundation pit was studied.By replacing this part of the deep ground connection wall embedded in the breezed rock layer with cast-in piles,the difficulty and workload of hard rock troughs are reduced,and the safety risks of adjacent buildings and subway operations are reduced.

关 键 词：复杂地质和环境 深基坑支护 地下连续墙 桩墙一体化 施工技术 

分 类 号：TU753[建筑科学—建筑技术科学]