黄土地区高速公路涵洞病害调查及分析

Investigation and Analysis on Diseases of Expressway Culvert in Loess Area

黄土地区高速公路涵洞病害时有发生,为此本文对山西省内数条高速公路涵洞病害进行了实地调研,归纳和总结了涵洞病害类型及影响,探讨了黄土地区涵洞病害的基本特征,并结合黄土地区特有的地质特征以及设计、施工等因素对病害成因进行了分析,认为黄土地区高速公路涵洞在设计时要充分考虑其地质环境及受力状况,使涵洞选型、选址以及受力计算更加合理;在施工过程中则要严格控制工序,确保施工质量。本次调研结果可进一步加深对黄土地区涵洞病害的认识,得出病害形成机理和发展规律,对今后黄土地区高速公路涵洞的设计施工具有重要的指导意义。

Diseases of expressway culvert in loess area occur occasionally,therefore the types and effects of diseases are summarized through spot investigation of expressways in Shanxi province in this paper.Meanwhile,basic characteristics and causes of disease are analyzed combined with geological characteristics of loess region,design and construction factors of culverts.Analysis shows that the engineering geological environment and stress condition of culverts should be taken full account to rationalize the type and site option,and force calculation; construction procedures should be subject to careful control as well to ensure the quality.Investigation results of this paper could promote the understanding of diseases of culvert in loess region and the obtainment of the disease mechanism and development law,which is of important directive significance to the design and construction of expressway culverts.