复杂基坑地下连续墙接头处理施工技术  

Construction techniques for handling joints of underground continuous walls in complex foundation pits

作　　者：孙汉文 Sun Hanwen(China Railway Fifteen Bureau Group City Construction Engineering Co.,Ltd.,Luoyang Henan 471000,China)

机构地区：[1]中铁十五局集团城市建设工程有限公司,河南洛阳471000

出　　处：《山西建筑》2025年第7期73-76,共4页Shanxi Architecture

摘　　要：南京江北新区地下空间项目不同基坑间地下连续墙的接头处理给施工带来很大挑战。针对该工程中的地连墙接头形式,介绍了适用于T形接头连接的全套筒回旋钻机引孔后铣槽施工技术,论述了适用于平面接头连接的高压旋喷桩加固配合外围止水素墙施工技术,解决了复杂基坑施工不同地下连续墙接头处理的难题,形成了一套完善的施工方案,在实际工程应用中取得良好效果。The Nanjing Jiangbei New Area underground space project is currently the largest and most complex underground space project in China.The connection treatment of underground continuous walls between different foundation pits poses significant challenges to construction.This paper introduces a complete set of construction techniques for T-shaped joint connections using ful-cylinder rotary drilling for pre-boring and slot milling,as well as high-pressure jet grouting pile reinforcement combined with peripheral waterproofing walls for planar joint connections.These techniques effectively address the challenges of handling different connections of underground continuous walls in complex foundation pit construction,resulting in a comprehensive construction plan that has achieved favorable results in practical engineering applications.

关 键 词：地下连续墙 接头处理 地下综合体 T形接头 平面接头 

分 类 号：TU476[建筑科学—结构工程]