【摘要】 涵洞病害是高速公路在黄土区域中典型病害之一,也是高速公路在运营期间的重点维护和防治对象。本文针对青海省境内平阿高速公路在穿越黄土区域段的51座涵洞进行了实地调研,基于此总结了青海省黄土地区平阿公路涵洞出现的7种典型病害类型,即涵洞下沉、基础开裂、护锥翼墙沉降开裂或倾斜错位、涵节错位或填缝脱落、内部或进出口积水淤塞、涵背填土塌陷、涵顶路面开裂等。对涵洞的基本病害特征进行了分析,并对不同病害类型提出了相应的防治对策与建议。该研究成果可以加深对黄土区公路涵洞病害机理的认识,对黄土地区高速公路涵洞病害的勘察、防治和施工具有一定的指导意义。更多还原

【Abstract】 Culvert disease is one of the typical diseases of expressways in loess area,it is also the key object of maintaining and controlling during the operation. The representative types and basic characteristics of 51 loess culverts’ diseases are summarized through spot investigation of Ping’a expressway in this paper. At the same time,the types of culvert disease in loess area mainly include culvert sinking,foundation fissure,subsidence cracking or dislocation of wing wall,culvert section mismatch or caulking falling off,internal water silting,lateral water silting,filling collapse behind culvert,pavement cracking on the top of culvert. Meanwhile,prevention measures corresponding to different culvert disease types are put forward. The investigation results of this paper could further promote the understanding of diseases mechanism of culvert in loess region,and provide theoretical guidance for loess culvert disease investigation,prevention and construction.更多还原