国内外高速公路、铁路地基处理技术回顾  

State-of-the-art review for techniques on ground improvement of highway and railway

作　　者：郑刚[1,2] 赵佳鹏 周海祚[1,2] 于晓旋 夏博洋 王金山 ZHENG Gang;ZHAO Jia-peng;ZHOU Hai-zuo;YU Xiao-xuan;XIA Bo-yang;WANG Jin-shan(School of Civil Engineering,Tianjin University,Tianjin 300072,China;Key Laboratory of Coast Civil Structure Safety of Ministry of Education,Tianjin University,Tianjin 300072,China)

机构地区：[1]天津大学建筑工程学院,天津300072 [2]天津大学滨海土木工程结构与安全教育部重点实验室,天津300072

出　　处：《地基处理》2021年第2期91-99,共9页Journal of Ground Improvement

基　　金：国家自然科学基金(52078337,51708405,41630641)。

摘　　要：高速公路和高速铁路在世界范围内处于快速建设阶段。为保障交通运输的安全性和舒适性,对地基的低变形性和高稳定性产生了较高的要求。天然软弱地基在全球范围内分布广泛,而在具有低抗剪强度、高压缩性和低渗透性的软土地基上修建高速公路和高速铁路路基容易出现沉降和稳定两方面问题。合理运用地基处理技术可以起到改善路堤变形性能、提高路堤稳定性的作用,在保障交通运输的安全性和舒适性的同时满足工程高效性和经济性的平衡。本文对高速公路、铁路已有的地基处理技术进行了简要阐述和回顾,综述了不同地基处理方法的沉降和稳定研究进展。选取了国内外的典型高速公路、铁路建设案例对地基处理技术的应用进行讨论。分析了现有路堤沉降预测方法和稳定性计算方法的缺陷及面临的挑战,探讨了地基处理技术在高速公路、铁路建设中的应用前瞻,以期为今后高速公路、铁路地基处理理论和技术的发展提供参考。Expressways and high-speed railways are rapidly being constructed worldwide.For transportation safety and comfort insurance,higher requirements are imposed on the low deformation and high stability of the foundation construction.Natural soft foundations are widely distributed around the world.The construction of highways and highspeed railway subgrades on soft soils with low shear strength,high compression and low permeability is prone to settlement and stability problems.Reasonable use of foundation treatment technology can play a role in improving the deformation performance of the embankment and enhancing the stability of the embankment.This can ensure the safety and comfort of transportation while satisfying the balance of engineering efficiency and economy.This article,therefore,briefly describes and reviews the existing foundation treatment technologies for high-speed highways and railways.It summarizes the settlement and stability research progress of different foundation treatment methods.The application of foundation treatment technology is discussed in the typical high-speed highway and railway construction cases at home and abroad.The shortcomings and challenges of existing embankment settlement prediction methods and stability calculation methods are analyzed,and the application prospects of foundation treatment technology in high-speed highway and railway construction are discussed,with a view to the development of high-speed highway and railway foundation treatment theory and technology in the future for reference.

关 键 词：地基处理 高速公路 高速铁路 沉降 稳定 

分 类 号：TU43[建筑科学—岩土工程]