SMW工法桩与前撑式注浆钢管组合基坑支撑体系施工技术  

Construction Technology of SMW Construction Method Pile And Front Support Grouting Steel Pipe Combination Foundation Pit Support System

作　　者：张炳南 ZHANG Bingnan(Shanghai Construction No.4 Construction Group Co.,Ltd.,Shanghai,200000,China)

机构地区：[1]上海建工四建集团有限公司,上海200000

出　　处：《工程建设（维泽科技）》2024年第4期160-162,共3页Engineering Construction

摘　　要：受施工场地的限制以及对成本的控制要求,针对软土地区安全等级为二、三级基坑,可采用前撑自稳式注浆钢管支撑与SMW工法桩相结合的绿色施工工艺。该工艺可部分代替传统的钢筋混凝土内支撑,可以减少混凝土支撑体系对施工的影响,具有对基坑开挖土方便利、缩短工期、降低成本、拆除简单以及支撑可回收等优点。本文主要介绍单排型钢水泥土搅拌墙结合前支撑的自稳式基坑支护施工工艺,并对施工过程中的注意事项进行探讨。Due to the limitations of the construction site and the requirements for cost control,a green construction technology combining front support self stabilizing grouting steel pipe support and SMW construction method piles can be adopted for safety level II and III foundation pits in soft soil areas.This process can partially replace traditional reinforced concrete internal supports,reducing the impact of concrete support systems on construction.It has the advantages of convenient excavation of foundation pits,shortened construction period,reduced costs,simple demolition,and recyclable supports.This article mainly introduces the construction technology of self stabilizing foundation pit support with single row steel and soil mixing wall combined with front support,and explores the precautions during the construction process.

关 键 词：前撑式注浆钢管 SMW工法桩 自稳式基坑支撑 绿色施工 基坑施工 

分 类 号：TU458.4[建筑科学—岩土工程]