道路工程水泥土搅拌桩地基加固施工技术研究  

Research on Construction Technology of Cement-Soil Mixing Pile for Foundation Strengthening in Road Engineering

作　　者：王庆华 吴启刚 WANG Qing-hua;WU Qi-gang(China First Highway Engineering Co.Ltd.,Beijing 100024,China)

机构地区：[1]中交一公局集团有限公司,北京100024

出　　处：《工程建设与设计》2024年第23期49-51,共3页Construction & Design for Engineering

摘　　要：主要对水泥土搅拌桩地基加固技术进行优化。结合施工过程中的具体工程参数确定水泥土搅拌桩布桩方式,改进长螺旋钻机,优化了水泥土搅拌桩的搅拌流程,解决了水泥土搅拌桩地基加固后存在的地基侧向位移和沉降量问题。在500 kPa静载时,研究方法对应的沉降量未超过1.0 mm。研究结果表明,采用研究方法加固的地基在侧向位移和沉降量方面具有优良的性能。This paper mainly optimizes the foundation reinforcement technology of cement-soil mixing pile.According to the specific engineering parameters in the construction process,the pile layout of cement-soil mixing pile is determined,and the long screw drill is improved the mixing flow of cement-soil mixing pile is optimized,and the problems of lateral displacement and settlement of foundation after foundation reinforcement of cement-soil mixing pile are solved.At the static load of 500 kPa,the settlement amount corresponding to the research method does not exceed 1.0 mm.The results show that the foundation strengthened by the research method has excellent performance in terms of lateral displacement and settlement.

关 键 词：水泥土搅拌桩 地基加固 施工技术 

分 类 号：U419[交通运输工程—道路与铁道工程]