双电机套筒螺旋钻孔压灌咬合桩施工技术研究  

Research on Construction Technology of Double-motor Sleeve Auger Drilling Press-Grouting Secant Pile

作　　者：刘文武 王东华 陈万需 卢俊言 陈鹤栋 李强 LIU Wenwu;WANG Donghua;CHEN Wanxu;LU Junyan;CHEN Hedong;LI Qiang(Shanghai Hydraulic Engineering Group Co.,Ltd.,Shanghai 201612,China;Zhejiang Water Conservancy and hydropower construction supervision Co.,Ltd.,Hangzhou 310003,Zhejiang,China;Zhejiang Huadong Engineering Construction Management Co.,Ltd.,Hangzhou 311100,Zhejiang,China;Zhejiang Hydropower Construction&Installation Co.,Ltd.,Hangzhou 310051,Zhejiang,China;Zhejiang University of Water Resources and Electric Power,Hangzhou 310018,Zhejiang,China)

机构地区：[1]上海市水利工程集团有限公司,上海201612 [2]浙江省水利水电建筑监理有限公司,浙江杭州310003 [3]浙江华东工程建设管理有限公司,浙江杭州311100 [4]浙江省水电建筑安装有限公司,浙江杭州310051 [5]浙江水利水电学院,浙江杭州310018

出　　处：《工程技术研究》2024年第11期119-121,共3页Engineering and Technological Research

摘　　要：文章以浙江省海塘安澜千亿工程的海宁市百里钱塘综合整治提升工程为背景,研发了工作效率高、对环境友好、操作方便的双电机套筒螺旋钻孔压灌咬合桩的施工工法,分析了工艺原理,研究了施工工艺流程及操作要点,包括测量放样、导墙施工、钻机就位等。工程实践表明,该方法具有钻孔直径大、垂直度偏差小、钻进速度快、无挤压土体作用力等优势,社会经济效益显著。Based on Baili Qiantang comprehensive improvement and upgrading engineering in Haining City of 100 billion shore Anlan engineering in Zhejiang Province,this paper developed a construction method of double-motor sleeve auger drilling press-grouting secant pile with high efficiency,environmental friendliness and convenient operation.The process principle was analyzed,and the construction process and operation points were studied,including measurement lofting,guide wall construction and drilling rig positioning.The engineering practice shows that the method has the advantages of large drilling diameter,small vertical deviation,fast drilling speed and no squeezing soil force,and the social and economic benefits are remarkable.

关 键 词：双电机 钻孔压灌咬合桩 长螺旋钻杆 

分 类 号：TU473.1[建筑科学—结构工程]