岩土工程技术最新进展──全向冻结施工技术  

New Progress in Technology of Geotechnology Engineering-Full Direction Freezing Technology for Construction

作　　者：陈湘生[1] 陈朝辉[1] 罗小刚[1] 

机构地区：[1]北京煤炭科学研究总院(集团),北京100013

出　　处：《地下空间》1999年第4期297-302,共6页Underground Space

基　　金：原煤炭工业部重点科研项目!97-06

摘　　要：本文介绍全向冻结技术的原理和应用条件，详述首次应用近水平冻结技术解决上海地铁2号线黄浦江下建旁通道和北京地铁“大-热”段过流砂层的困难工程问题。采用孔口密封装置、旋塞式可逆止钻头和合理工艺参数。The principles and application of full direction freeczing technology were introduced.In this paper the application of freezing technology for solving some problems in construction of metro line No. 2 in Shanghai is described,where a bypass under the Huangpu River was to be constructed and in construction of 'Da-Ri' section of Beijing Metro,which would pass the quicksand layer. By using the sealing mechanism for the orifice and reversible dri1l of faucet type with proper technological parameters the problems of bending of drill stem and water and slurry emerging were solved.

关 键 词：全向冻结技术 钻头 地铁工程 隧道 地层加固 

分 类 号：U231.3[交通运输工程—道路与铁道工程] U455.49[建筑科学—桥梁与隧道工程]