人工冻结法在地铁建设中的应用与发展  

The Aapplication and Development of Artificial Freezing Method in the Subway Construction

作　　者：张婷[1] 杨平[1] 

机构地区：[1]南京林业大学土木工程学院,南京210037

出　　处：《森林工程》2012年第6期74-78,共5页Forest Engineering

基　　金：南京地下铁道有限公司科研项目(2012);江苏省高校优势学科建设工程资助项目

摘　　要：人工冻结法具有良好的封水性能,且地层可复原性好、绕障性强、施工方便,可适用于各种地层条件,特别是在富含水砂层中更具优越性,随着我国地铁建设规模的加大,该法已成为地铁建设的主要辅助工法。本文以实例分析为背景,详细论述人工冻结法在地铁联络通道、盾构隧道端头加固、地铁事故修复、特殊工程及穿越江河湖底隧道中的盾尾刷更换等应用,给出各种工程中人工冻结的适用条件、设计参数、及关键技术参数,并提出人工冻结在地铁建设中有待进一步研究的问题和发展方向。Artificial freezing method has good sealing water performance,stratum＇s good recoverability,obstacle avoidance of construction,and convenience.It can be applied to various ground conditions,especially in water-rich sand.With the increasing scale of subway construction in our country,the artificial freezing method has become the mainly auxiliary method.Taking the instance analysis as background,the paper discusses the artificial freezing method in the application of Metro＇s connected aisle,reinforcement for pass in and out of working pit in shield tunnel,accident repair,special projects,and replacement of shield tail brush crossing river/lake tunnel,gives artificial freezing applicable conditions,design parameters and the key technical parameters,and puts forward the problem and the development direction about further research on artificial freezing in the subway construction.

关 键 词：人工冻结 地铁联络通道 端头加固 事故修复 盾尾刷更换 

分 类 号：S791.247[农业科学—林木遗传育种]