钻孔咬合桩在天津地铁3号线华苑站中的应用  

Application of Bored Lock Piles in Huayuan Station,Line 3 of Tianjin Subway

作　　者：胡世山 朱川鄂 石教豪[2] 

机构地区：[1]中铁四局集团四公司,安徽合肥230041 [2]吉林大学建设工程学院,吉林长春130026

出　　处：《土工基础》2005年第5期35-38,共4页Soil Engineering and Foundation

摘　　要：针对天津地区土层松软、地下水丰富的地质特点,天津地铁3号线华苑站基坑主体围护结构采用全套管钻机形成排桩实施咬合桩技术,作为支护结构,同时起到承重和止水帷幕作用,社会效益和经济效益都优于其他支护结构,在实践工程中极具推广价值。With soft layer and abundant groundwater geological characteristic of area of Tianjin, the major supporting structure of Huayuan staion, Line 3 of Tianjin subway adopts the whole sleeve drilling machine to lock the piles and forms a monolithic locked retain wall structure. This supporting structure can play bearing and seepage resistance performance, and is superior to others at both social benefit and economic benefit. This kind of supporting structure is of significance value if its can be iadely popularized.

关 键 词：钻孔咬合桩 全套管钻机 超缓凝混凝土 

分 类 号：TU473[建筑科学—结构工程]