MJS工法在基坑开挖期间对临近既有建筑物的影响分析  

Influence Analysis of Adjacent Structures at the Excavation of Foundation Ditch by Using Metro Jet System Construction Method

作　　者：郑修军 杨益平 鲍家宁 池玉宇 ZHENG Xiujun;YANG Yiping;BAO Jianing;CHI yuyu(Ningbo Municipal public Engineering Safety and Quality Supervision Station,Ningbo Zhejiang 315012,China)

机构地区：[1]宁波市市政公用工程安全质量监督站,浙江宁波315012

出　　处：《工程质量》2018年第10期61-65,69,共6页Construction Quality

摘　　要：以碶闸街地下通道基坑工程为例,通过对MJS工法作为隔离桩在基坑施工过程中对周边环境的影响分析,运用现场监测的手段对深层土体位移、周边建筑物的沉降、支护结构顶部水平位移、支撑轴力等数据采集、分析,验证MJS工法桩作为隔离桩在整个基坑支护体系中的作用,旨在验证MJS工法在宁波软土地区适应性。Through the influence analysis of the surrounding environment in the construction process of foundation ditch by using MJS piles as partition wall,the excavation of the Qizha Street’s underground passage is taken as an example in this essay.The data of shifting of deep soil,settlement of adjacent buildings,and horizontal displacement of top supporting structure and axial force of strut are collected and analyzed by means of on-site monitoring to verify the function of MJS piles at retaining system in foundation pit and the adaptability of MJS construction method in soft clay area in Ningbo.

关 键 词：MJS工法 隔离桩 软土地区 

分 类 号：TU473[建筑科学—结构工程]