既有公路隧道衬砌裂缝成因分析

摘要

According to the lining cracks in tunnels of existing roads,the paper undertakes the investigation and research,sums up the distribu-tion of the lining cracks,analyzes some reasons for the lining cracks from the design,construction,temperature difference,and underground wa-ter,and points out some reasonable treatment suggestions,so as to ensure the safe operation of road tunnels.%通过对省内既有公路隧道衬砌裂缝进行调查研究，总结了衬砌裂缝的分布形态，从设计、施工、温差、地下水等方面分析了衬砌裂缝产生的原因，并提出一些合理的处理建议，有利于保证公路隧道的安全运营。