高速公路路基软基处理

Highway Subgrade Soft Foundation Treatment

软土的物理力学性质差,具有天然含水量大、强度低和易受扰动影响等特性。高等级公路路面的造价昂贵,技术标准高,对路基变形与稳定性的要求十分严格。这些都使得软土地区高速公路的变形与稳定性控制成为高速公路路基工程中遇到的主要技术难题。所以软基处理是公路建设中的重要课题,做好软基处理直接关系到公路的质量,交通的安全,国家的利益。本文主要介绍软土地基成因及特点以及高速公路路基软基常用的一些处理方法。

The physical and mechanical property of soft soil is poor, and it is of great natural moisture content, low strength and vnlnerabihty to disturbance and other characteristics. The cost of high grade highway pavement is expensive, technical standards is high, it is very strict to the requirements on the subgrade deformation and stability, which make the deformation and stability control of highway in soft soil area become main technical problems encountered in highway subgrade engineering. Therefore, Soft foundation treatment is an important issue in the highway construction, and doing a good job in soft ground treatment is directly related to the quality of the road, traffic safety and national interests. This paper describes the causes and characteristics of soft soil foundation as well as common treatment methods of soft soll foundation of highwav subarade.