上海市轨道交通四号线修复工程综述

Rehabilitating construction for subway line 4 in Shanghai

1 概述 上海市轨道交通四号线浦东南路站一南浦大桥站区间隧道工程是一个过江区间段。工程起始于浦东南路站，终止于南浦大桥站，全长约2000m，其中江中段约440m。该段区间在浦西岸边设中间风井，位于中山南路和黄浦江防汛墙之间．其北侧为董家渡路，主要建筑物为谷泰饭店等3座5层砖混结构民用建筑：南侧依次为23层的临江花苑大厦、地方税务局和土产公司大楼、光大银行大楼等（参考图1）。

Rehabilitating construction for subway line 4 located between the station of Pudong southeast and the station of Nanpu Bridge, 2 km long, in which the length of 440m is the important site. The tunnel collapsed because of the influence of fluid sand, and then some building on the ground inclined. Through the study of construction difficulties, construction site conditions, the risk, time limit for this project and surroundings, the specialists compared and demonstrated many methods. At last they decided to rebuild on the primary foundation, and would select different method according to different conditions.