The Danger Quantitative Evaluation Study On Highway Geologica Disasters

With the constant development of the highway transportation construction, the geological of the highway on the way often intimates people's lives and property safety, normal operation of the highway traffic. From Dandong to Haicheng, its geological condition is so complicated that the geological disasters occurred frequently. Therefore, it intimates seriously to the highway and people in the surroundings. Under such geological background condition, the paper evaluates the risk of geologic disaster from Dandong to Haicheng, according to fuzzy comprehensive assessment method after researching on the geological disaster facts of this region, and analysising of the type distribution and influential factor of the geological disaster in the researching region.In this paper, according to the type and the distribution feature of the geological disasters along the highway, it selects topographical features, lithology features geological structure, ground change structure, the structure of rock and soil and human engineering activity as main influential index of the geological disasters development. Basic index system for comprehensive evaluation of geological hazards along highway has been constructed, and some factors are selected to be the main influence index for the development. Danger valuntion index system witch is fit for the geological disasters of the highway feature are built. Evaluation index and the corresponding basic division index of evaluation rank are also given. It also combines the valuntion index the method of arrangement analysis. By this, it assures the weight of different valuntion index. Which in the comprehensive influence of many geological disasters types. It uses fuzzy comprehensive assessment to go on the comprehensive evaluation in the geological disasters danger along the highway. It divides into two kinds of dangerous level to the geological disasters along the highway: small risk, medium risk and come to Dandong - Haicheng paragraphs along the highway district assessment of geological hazard map, this paper will give some guide and help to the next designs of the highway.