基于SMW工法桩的深基坑基底加固施工分析  

Construction Analysis on Base Reinforcement of Deep Foundation Pit Based on SMW Construction Pile

作　　者：聂云飞 NIE Yunfei(Forth Engineering Co.,Ltd.,China Railway 18th Bureau Group,Tianjin 300350,China)

机构地区：[1]中铁十八局集团第四工程有限公司,天津300350

出　　处：《浙江水利水电学院学报》2024年第5期74-79,共6页Journal of Zhejiang University of Water Resources and Electric Power

摘　　要：为分析基于型钢水泥土搅拌(SMW)工法桩的深基坑基底加固施工要点,以江东大道提升改造工程为依托,立足SMW工法桩的特点,分析了施工存在的重难点,并提出该工法桩的应用要点和效果。深基坑基底水文地质条件较为复杂,施工难度较大,加固方法的选择和应用效果对基底的承载力、稳定性有较大影响。将SMW工法桩应用到深基坑基底加固中可有效适应水文地质复杂的施工条件,利用多轴搅拌桩施工方法形成地下墙体,以提供稳定的地基支撑和挡水功能,提升深基坑基底的承载力,为上部结构施工提供良好的基底支撑。In order to analyze the key points of base reinforcement in deep foundation pit construction based on SMW construction pile,the Jiangdong Avenue Upgrading Project was discussed as a case,the difficulties and key points in construction were analyzed and the application points and effects of construction pile were put forward.The hydrogeological conditions at the base of deep foundation pit are complicated,making the construction difficult.The choice of reinforcement method and application effect have great influence on the bearing capacity and stability of the foundation.The application of SMW construction method to the base reinforcement of deep foundation pit can effectively adapt to the construction conditions with complex hydrogeology,and the construction method of multi-axis mixing pile machine is used to form an underground wall to provide stable foundation support and water retention function,so as to improve the bearing capacity of the base in deep foundation,providing good base support for the construction of superstructure.

关 键 词：SMW工法桩 深基坑 基底加固 H型钢 

分 类 号：TU463[建筑科学—结构工程]