青海东部黄土沟壑区路基病害特征研究

Research on the characteristics of disease on loess gully region in eastern Qinghai province

受青海东部黄土沟壑区地形、地貌等因素影响,在该区域修筑公路时,面临诸如黄土工程特性差、水患、排水设施病害等多方面问题,极易出现路基变形、路面开裂等病害。本文依托青海东部京藏高速兰西段病害调研工作,对黄土沟壑区路基现场调研的基础上,分别对沟壑区路基病害和涵洞结构物病害进行了详细的调查研究,归纳总结了主要病害特征,并分析了各类型病害的成因,提出了相应的防治措施,为该区域相关工程的实施提供了病害预防及整治的指导和借鉴。

Influenced by topography and physiognomy conditions in loess gully region in eastern Qinghai, fa- cing the problem of poor engineering feature of loess, disease of drainage, large possibility of flooding etc. Deform- ation of subgrade, pavement cracking and other diseases may appear. Based on site investigation of disease in gully region of the loess subgrade of Lanzhou-Xining vert structure are studied. In this paper, main section of Beijing-Tibet expressway, the diseases of roadbed and cul- disease characteristics are summarized, causes of the various diseases types are analyzed, and corresponding prevention measures are put forward to provide reference for the imple- mentation of the related engineering in this region.