铁路隧道衬砌裂缝成因分析及处置措施

Analysis of Causes and Treatment Measures for Cracks in Railway Tunnel Lining

随着我国交通建设的快速发展,隧道工程在当前公路、铁路项目上占比越来越大,隧道二次衬砌裂缝成为制约工程质量的重要因素之一。本文从二次衬砌裂缝的成因及走向阐述了裂缝的分类,从混凝土、现场施工和地质三个方面对裂缝的成因进行了系统的分析,并结合工程实际案例分析了环向裂缝的成因,并提出了裂缝处置措施。

With the rapid development of transportation construction in China,the proportion of tunnel engineering in current highway and railway projects is increasing.Cracks in the secondary lining of tunnels have become one of the important factors restricting the quality of engineering.This article elaborates on the classification of cracks from the causes and trends of secondary lining cracks,and systematically analyzes the causes of cracks from three aspects:concrete,on-site construction,and geology.Combined with practical engineering cases,the causes of circumferential cracks are analyzed,and crack treatment measures are proposed.