公路软土地基处理中碎石桩复合地基的应用  

APPLICATION OF COMPOSITE FOUNDATIONS OF CRUSHED STONE PILES IN TREATMENT OF SOFT FOUNDATIONS IN HIGHWAYS

作　　者：沈俊 Shen Jun

机构地区：[1]安徽中港路桥集团有限公司,合肥230000

出　　处：《建筑技术开发》2022年第22期169-171,共3页Building Technology Development

摘　　要：某高速公路工程项目所在区域呈现出典型沉积软土地基特征,可采用碎石桩复合地基解决高速公路软土地基承载力不足问题。基于此,本文将基于某高速公路工程项目现场勘测结果与室内试验数据结果实施碎石桩复合地基数值模拟分析,进而根据分析结果确认碎石桩复合地基在公路软土地基处理中的应用成效。最终结果表明碎石桩复合地基针对天然软土地基加固效果较为显著,并且相较于复合模量均质法,群桩典型单元法更适用于碎石桩复合地基数字仿真模拟。The area where a expressway project is located presents the characteristics of typical soft soil foundation.Gravel pile composite foundation can be used to solve the problem of insufficient bearing capacity of soft soil foundation of expressway.Based on this,this paper will carry out numerical simulation analysis of gravel pile composite foundation based on the field survey results and indoor test data results of a highway project,and then confirm the application effect of gravel pile composite foundation in highway soft soil foundation treatment according to the analysis results.The final results show that the gravel pile composite foundation is more effective in strengthening natural soft soil foundation,and the typical element method of pile group is more suitable for the digital simulation of gravel pile composite foundation than the homogeneous method of composite modulus.

关 键 词：公路软土地基 地基处理 碎石桩 复合地基 数值模拟 

分 类 号：U416.1[交通运输工程—道路与铁道工程]