半逆作先挖后撑法在厚填土深基坑中的应用  

Application of Semi-reverse Excavation Before Support Method in Thick Fill Deep Foundation Pit

作　　者：周文兵 ZHOU Wenbing(Zhongyifeng Construction Group Co.,Ltd.,Suzhou,Jiangsu 215131,China)

机构地区：[1]中亿丰建设集团股份有限公司,江苏苏州215131

出　　处：《建筑施工》2022年第1期23-25,共3页Building Construction

摘　　要：结合工程实践,对半逆作先挖后撑法在厚填土深基坑中的应用进行了研究。通过对基坑支护施工工况的优化,以先挖后撑、逆作法思路为引导,采用半逆作先挖后撑法的施工技术,实现了地上地下同步施工的目的。该施工技术不仅减少了基坑支撑体系工程量,提高了施工工效,同时节约了项目造价,实现了良好的社会效益和经济效益。Combined with engineering practice,the application of semi-reverse excavation before support method in thick fill deep foundation pit was studied.Through the optimization of foundation pit support construction conditions,guided by the idea of excavation before support and reverse construction method,the construction technology of semi reverse excavation before support method was adopted to realize the purpose of synchronous construction above and underground.The construction technology not only reduces the quantity of foundation pit support system,improves the construction efficiency,saves the project cost,and realizes good social and economic benefits.

关 键 词：厚填土深基坑 先挖后撑 半逆作法 同步施工 

分 类 号：TU753[建筑科学—建筑技术科学]