Study On The Prediction And Forewarining Of Geological Disasters On Highway Slope In The South Of Shan'xi Province

There are many factors can cause highway slope geological disasters in the southern of Shanxi, and different geological environments, different rainfall conditions, the size and type of the slope disasters are also different. The rapid development of mountain road is promoting the economic development, but also affecting the stability of the surrounding environment. The increasing of road hazards affect the traffic smoothly and driving safety, especially in the rainy season. Therefore, studying on the factors about stability of the highway slope in the rainy season, establishing the early warning model, developing contingency plans and emergency measures are important for the disaster prevention and reduction.First, this paper analysis the natural environment of the south of Shanxi from geomorphology, lithology and geological structure, hydrogeological and rainfall, combining the data analysis and the field survey, based on the analysis on the highway geological hazards, the main geological hazards on the G316 of the south Shanxi are collapse, landslide and debris flow. At the same time, this paper made for different types of disasters of different monitoring methods.Second, it analyzes the main factors which affect the highway slope are geological factors(topography, geological structure and new construction activities, groundwater, slope structure) and non-geological factors (rainfall factor, seismic factors, the human irrational economic activities of the project), and among these factors,the rainfall and slope structure are the most important factor. Divided risk zoning through the information and field experience, and make the spatial prediction to the south of Shanxi. Establishing the early warning model, analyzing the slope of the resilience through the rainfall data, make the time prediction of the highway disaster. And then, combined with the time prediction and space prediction could make the space-time prediction of the region highway disaster.Finally, divided the warning grade accordance with the size and type of the geological disasters, and according the different warning levels for different levels of emergency response procedures. Development of contingency plans and emergency rescue measures as the basis to the road management department for emergency rescue.