就地固化技术在道路软土处理中的应用研究  

Research on the Application of In-situ Solidification Technology for Soft Soil Treatment in Road Construction

作　　者：李平 LI Ping(Guangdong Metallurgical Architectural Design and Research Institute Co.,Ltd.,Guangzhou Guangdong 510080,China)

机构地区：[1]广东省冶金建筑设计研究院有限公司,广东广州510080

出　　处：《广东公路交通》2024年第3期56-60,80,共6页Guangdong Highway Communications

摘　　要：采用Abaqus软件以广州市南沙区典型软土为例,建立平面二维模型,对就地固化技术在道路软土处理中的应用进行研究。研究结果表明,就地固化层具有明显的板体支撑作用,对上部结构荷载应力起到扩散和滞后的作用,有效减少了路基沉降,提高了路堤施工期的稳定性;就地固化技术可有效应用于大于5m的软土路基;就地固化路基路堤预压期满足软土路基的90天预压要求即可。Employing Abaqus software,this study constructs a two-dimensional planar model based on the representative soft soil found in Guangzhou's Nansha District to investigate the application of in-situ solidification technology in roadbed soft soil treatment.The findings demonstrate that the in-situ solidified layer provides substantial slab-like support,diffusing and postponing the load-induced stress from the upper structure,thereby markedly diminishing subgrade settlement and augmenting the stability of the embankment during construction.The research confirms that in-situ solidification is an effective method for treating soft soil subgrades deeper than 5 meters and the solidified roadbed meets 90-day preloading requirement for such subgrades.

关 键 词：就地固化 软土处理 路基沉降 预压期 

分 类 号：U416.1[交通运输工程—道路与铁道工程]