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[1]MAO Zheng-jun,YANG Xiao-hua,WANG Xiao-zhong.Study on Prevention Measures and Development Characteristics of Geological Hazards along the Expressway in the Wushaoling[J].Research of Soil and Water Conservation,2012,19(01):202-205,211.

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Study on Prevention Measures and Development Characteristics of Geological Hazards along the Expressway in the Wushaoling

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 19 Number of periods: 2012 01 Page number: 202-205,211 Column: Public date: 2012-02-20

Title:: Study on Prevention Measures and Development Characteristics of Geological Hazards along the Expressway in the Wushaoling

Author(s):: MAO Zheng-jun¹, YANG Xiao-hua¹, WANG Xiao-zhong²; 1. School of Highway, Chang’an University, Xi’an 710064, China;
2. Highway Investment Co. Ltd Gansu Road ＆ Bridge Group，Lanzhou 730030, China

Keywords:: geological hazard; development characteristic; prevention measure; expressway; Wushaoling

CLC:: P694

DOI:: -

Abstract:: Expressway in the Wushaoling is the important section of national trunk highway. Research for geological hazards along the expressway will provide the basis for disaster prevention and reduction. Based on field investigation and analyses, the development characteristics, temporal and spatial distribution and formation conditions of geological hazards along the expressway in Wushaoling were found. The results indicate that debris flow and unstable slope are the main types of geological hazards along the expressway in Wushaoling. Debris flow disaster distributes widely and occurs frequently. Unstable slope distributes locally or fragmentarily, and its hazards is gentle, which is characterized as zonal and concentrated features in terms of temporal and spatial distribution. Geomorphology, stratum structure, rainfall, human engineering activity and earthquake are considered as the formation conditions of geological hazards. Debris flow is controlled by applying for reasonable selecting lines, monitoring and warning, cross grooming and ecological restoration. Unstable slope is controlled by the means of optimizing slope morphology, drainage measures, engineering treatment combined with plant protection.

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