摘要
随着社会经济快速发展和区域联系日益紧密,山区公路现有通行能力已难以满足不断增长的交通需求。通过对既有公路实施扩容升级改造,可有效缓解交通拥堵状况,显著提升道路通行能力。针对受限路段路基加宽需求,系统比较桩基悬臂式挡墙、桩基托梁重力式挡墙及预应力T梁简支梁桥3种技术方案的适用性,研究一种成本低、效率高、安全性好的路基加宽技术方案,以期为山区公路改扩建工程提供科学的设计思路和技术参考。
With the rapid socio-economic development and increasingly close regional connectivity,the existing traffic capacity of mountainous highways has struggled to meet the ever-growing transportation demands.Implementing capacity expansion and upgrading projects on existing highways can effectively alleviate traffic congestion and significantly enhance road traffic efficiency.This paper focuses on analyzing subgrade widening techniques in highway reconstruction and expansion projects.Targeting the subgrade widening requirements in restricted road sections,it systematically compares the applicability of three technical solutions:cantilevered retaining walls supported by pile foundations,gravitytype retaining walls with pile-supported corbels,and simply supported prestressed T-beam bridges.The aim is to provide scientific design concepts and technical references for mountainous highway reconstruction and expansion projects.
出处
《重庆建筑》
2025年第5期70-72,共3页
Chongqing Architecture
关键词
改扩建
路基加宽
悬臂式
山区公路
Reconstruction and Expansion
Subgrade Widening
Cantilevered Type
Mountainous Highways
作者简介
李大为,男,四川安岳人,工程师,主要从事路基设计工作。
