浅层换填结合抛石挤淤软弱地基处理技术研究  

Soft Foundation Treatment Technology of Shallow Replacement Combined with Riprap Compaction

作　　者：白彬 李杰 邓童语 BAI Bin;LI Jie;DENG Tongyu(China Southwest Architecture Design Institute Co.,Ltd.,Chengdu,Sichuan 610000,China)

机构地区：[1]中国建筑西南设计研究院有限公司,四川成都610000

出　　处：《山西交通科技》2024年第5期27-31,共5页Shanxi Science & Technology of Transportation

摘　　要：结合成都东部新区某市政工程项目,提出了适用于该项目的浅层换填结合抛石挤淤软弱地基处理技术。通过对处理后的路基进行沉降预测和稳定性分析,得到填筑期沉降和路基滑动安全系数主要受路基填土高度影响,路基工后沉降主要受软基深度影响的结论。通过对施工期沉降和位移监测,得出沉降量主要发生在路基填筑期,而填筑间歇期长短是影响路基沉降速率的重要因素。以期对类似项目具有借鉴和参考价值。Based on a municipal engineering project in the east new district of Chengdu City,this paper proposed a treatment technology that combines shallow replacement with riprap compaction.Through the settlement prediction and stability analysis of the treated subgrade,it can be seen that the settlement in the filling period and the sliding safety factor of the subgrade were mainly affected by the subgrade filling height,and the post-construction settlement of the subgrade was affected by the soft foundation depth.By monitoring the settlement and displacement during the construction period,the settlement occurred during the subgrade filling period,and the interval length of the filling period was an important factor affecting the settlement rate.This paper can provide a reference for similar projects.

关 键 词：软弱地基 处理技术 沉降预测 稳定性验算 沉降与位移监测 

分 类 号：U416.1[交通运输工程—道路与铁道工程]