Study Of Geological Disaster Influence Of Hengxing Highway Hengshui Section

XingHeng highway hengshui segment is one of the most important roads of Handan-to-Huanghua Highway which was planned by Hebei Province. Handan-Huanghua Highway starts from Handan City, goes through Xingtai. Hengshui and Cangzhou and ends at Huanghua Port. The whole Xingheng Highway is70.385Km. The segment between Zaoyuan (Xingheng boundary) and Norh Hengshui (A Line) is53.5Kms, it starts form the boundary of Xingtai and Hengshui which located in the southwest of Zaoyuan Town and ends at Damasen Town which next to Daguang Highway; The around-city section of south Hengshui (Z Line) starts form north Zaoyuan Town, next to Zaoyuan (Hengxing boundary) and north Hengshui highway section and ends at south Jingjiang village which next to Daguang Highway, the whole length is16.885km.As a result of over exploring ground water of the Hengxing Highway Hengshui section, the land subsides, which causes huge threaten for people who live around. Based on the investigation of geological disaster situation of Hengxing Highway Hengshui section, this article analysis different types of geological disasters of this area. Based on the types and distribution characteristics of the geological disasters, I picked geographic and geomorphic features, formation lithology, active strength of geological structure and human engineering activities as the main factors of inducing geological disasters. To sum up the above basic situation, this article divides the area into cells and establishes a comprehensive geological disaster evaluation system; Use AHP to determine the weight of main factors which influence the danger of geological disasters and determine the weight value of factors in different element; At last, this article use fuzzy comprehensive evaluation method to comprehensively evaluate the dangerous factors of this section of this highway, and use visual mudflow software to simulate the relationship between ground water drop and land subsidence, so that to determine different dangerous levels of geological disasters in each area and get the two risk levels of medium&small, and then show the comprehensive regional assessment figure of geological disasters, so that it could provide basis for safety operation of roads.