辐射井降水技术在浅埋暗挖地铁中的应用  

Application of Radiate Dewatering Wells in Underground Excavation for Subway Project

作　　者：何运晏[1] 张志林[1] 夏孟[1] 

机构地区：[1]北京市地质工程勘察院,北京100037

出　　处：《探矿工程（岩土钻掘工程）》2005年第B09期273-276,共4页Exploration Engineering:Rock & Soil Drilling and Tunneling

基　　金：获得北京市优秀人才培训资助

摘　　要：介绍了辐射井施工工艺取得重大突破,特别是引进双壁反循环和偏心潜孔锤跟管钻进新工艺施工水平井,成功解决了流砂和卵砾石地层水平井施工的难题,同时应用沉井法和锚喷倒挂壁法施工竖井,解决了场地狭小的难题,并在北京地铁降水施工中得到广泛应用。The important breakthrough of radiate well drilling technology was introduced. The introduction of double tube reverse circulation and eccentricity downhole hammer casing while drilling successfully resolved the difficult problem of constructing level well in stratum of sand and gravel cobble. Meanwhile, the application of drop shaft sinking and anchor injection resolved the problems of constructing in narrow and small place. All the techniques mentioned above is extensively applied in dewatering project of Beijing subway construction.

关 键 词：地铁施土 降水 辐射井 水平钻机 

分 类 号：U445.553[建筑科学—桥梁与隧道工程]