双圆隧道二次注浆对结构的影响研究  

Effects of the Second Grouting to Double Circular Tunnel Structure

作　　者：杨洪杰 

机构地区：[1]上海申通地铁集团公司技术中心,上海∥高级工程师201103

出　　处：《城市轨道交通研究》2012年第5期97-102,109,共7页Urban Mass Transit

摘　　要：上海轨道交通2号线东延伸段的川沙站到凌空路站,采用双圆盾构进行施工,运营期内持续沉降,后采用双液注浆的方式进行沉降治理。对双液注浆期间对结构会产生怎样的定量影响,及双液注浆完成后,加固体对衬砌的反作用力是否能保证衬砌结构的安全等问题,进行了详细的分析和计算,为注浆治理沉降工作提供理论依据。The east extension of Shanghai metro Line 2 is constructed by using DOT method for the section between Chuansha Station and Lingkong Rd. Station. A lot of set- tlements have taken place in the tunnel structure and a double liquid grouting method was applied to conquer the tendency. This paper studies the effects of the 2nd grouting and the actions of the reinforced body to tunnel structure. A detailed calculation is conducted, and is theoretically use- ful for the treatment against settlement.

关 键 词：双圆盾构 沉降 二次注浆 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]