超深基坑内贯入承压水层管桩抗突涌处理方法研究  

Study on Anti-inrush Treatment Method of Pipe Piles Penetrating into Confined Aquifer in Super-deep Foundation Pit

作　　者：董锋 DONG Feng(Shanghai Foundation Engineering Group Co.,Ltd.,Shanghai 200002,China)

机构地区：[1]上海市基础工程集团有限公司,上海200002

出　　处：《建筑施工》2024年第5期732-736,共5页Building Construction

基　　金：上海市基础工程集团有限公司(2020-科研-08)。

摘　　要：结合上海某地铁车站超深基坑工程在旧厂区的施工实例,介绍一种超深基坑内贯入承压水层管桩抗突涌的处理方法,通过采取全回转全套管钻机拔桩、RJP工法旋喷桩加固封底、应急减压降水等处理方法,保证了超深基坑工程的安全,可为今后类似工程的施工和设计提供借鉴。Based on the construction example of a super-deep foundation pit project of a subway station in Shanghai in the old factory area,this paper introduces a treatment method of anti-inrush of pipe piles penetrated into the confined aquifer in the super-deep foundation pit.By adopting the treatment methods of pulling piles with full rotary casing drilling rig,reinforcing and sealing the bottom with RJP rotary jet grouting piles,and emergency decompression and dewatering,the safety of the ultra-deep foundation pit project is ensured.It can provide reference for the construction and design of similar projects in the future.

关 键 词：深基坑 承压水 管桩 抗突涌 处理方法 

分 类 号：TU753[建筑科学—建筑技术科学]