摘要
为解决滨江地区市政道路建设中软土路基承载力及沉降控制问题,以长江下游南通段某毗邻长江堤防段市政道路路基处理为例,对常规适用的降水强夯加固处理方案进行了监测研究,提出了基于不同桩长、分区施工的水泥搅拌桩路基加固方案。实践结果表明,分区设计方案的单桩及复合地基的承载力均可满足路基承载力的设计要求,材料用量减少,施工成本降低,缩短了施工周期,具有显著的综合效益。研究可为类似特殊区域软土路基的地基处理提供科学的实践依据及技术支持。
In order to solve the problems of bearing capacity and settlement control of soft soil subgrade during municipal road construction in riverside areas,taking the subgrade treatment of a municipal road adjacent to the Yangtze River embankment in Nantong section in the lower reaches of the Yangtze River as an example,this paper monitors and studies the conventional and applicable dewatering dynamic compaction reinforcement treatment scheme,and proposes the cement mixing pile subgrade reinforcement scheme based on different pile lengths and zoned construction.The practical results show that the bearing capacity of the single pile and composite foundation in the zoned design scheme can meet the design requirements of the bearing capacity of the subgrade,the material consumption is reduced,the construction costs is lowered,and the construction period is shortened,showing remarkable comprehensive benefits.The research can provide scientific practical basis and technical support for the foundation treatment of soft soil subgrade in similar special areas.
作者
冯雪忠
FENG Xuezhong(Nantong Economic and Technological Development Zone Investment Enterprise Management Service Center,Nantong 226000,Jiangsu,China)
出处
《工程技术研究》
2025年第24期205-207,共3页
Engineering and Technological Research
关键词
软土路基
加固处理
分区施工
水泥搅拌桩
soft soil subgrade
reinforcement treatment
zoned construction
cement mixing pile
