Research On Assessment And Prevention Method Of Geological Hazards In The Highway Of Mountain Area In Hebei

There is long highways in mountain area of Hebei, frequent occurring of geological hazard. So road infrastructure, people's life and property have been threatened, and the local economic construction and social development have been influenced. Up to now, people is not accomplished comparative research in thid field, this reseach is the first systematic study on on assessment and prevention method of Geological Hazards in the Highway of Mountain Area in Hebei.Being based on frequent occurring collapse, landslide and debris flow as mian object of studys, The article, according to theoretical analysis, data acquisition and field survey, researches the classification, basic feature and formative mechanism and assess the status and endanger of every kind of geological hazards; In the article, Behind selecting suitable influence factors of geological hazard and determining weight of every factor by golden-section search means, risk evaluation Models of geological hazard are constructed and are used in risk forecasting assessment of many geological hazard places in several trunk highway.In complicated geologic environment of mountain area, the article chooses mian controlling factors, determines the weight of every factor by AHP whose actions and modes are very indistinct and complex in the generating process of geological hazard, builds target system of the comprehensive risk assessment of geological hazard in highway of mountain area; The article discuss comprehensive risk assessment of highway based on the second class fuzzy comprehensive evaluation, then, make the hazard zoing taking the example of Provincial road 202 from Jingxing to Zanhuang; In the end, according to the principle of concrete analysis of concrete problems the article chooses several hazard places and analyzes their geological factors and geological condition of project formulates concrete dispose measure and construction plan.