公路路基拓宽差异沉降控制关键技术及工程应用

Key Technology and Engineering Application of Differential Settlement Control for Widening of Highway Subgrade

随着城市之间的相互合作更加密切,路运物流的兴起发展,原有高速的通行能力与日益增长的交通需求早已不相匹配,交通拥堵问题变得越发严重,这就使得运输成本大幅提升,所以说,必须要通过有效措施来提升高速公路的通行能力。在现阶段,提升公路通行能力的主要途径就是对公路路基进行拓宽,但是在拓宽过程中会因地形、地质条件、施工时间不同导致出现差异沉降,严重威胁着通行安全,因此文章中对公路路基拓宽差异沉降的控制意义及关键技术进行探讨。

With the closer cooperation between cities and the rise and development of road transportation logistics,the original capacity of high-speed traffic has long been out of line with the increasing traffic demand,and the problem of traffic congestion has become more and more serious.This has led to a significant increase in transport costs,so effective measures must be taken to improve the capacity of the highway.At the present stage,the main way to improve the capacity of highway is to widen the roadbed,but in the process of widening,the differential settlement will occur due to the different terrain,geological conditions and construction time,which seriously threatens the safety of the road.Therefore,this paper discusses the significance and key technology of differential settlement control of highway roadbed widening.