Probalility Prediction Of Seismic Geological Hazards Along The Wu-guan Freeway

Today China is in the period of rapid economic development, the infrastructureconstruction, especially with the national implementation of the western developmentstrategy, western mountainous area highway construction has obtained the rapiddevelopment, but inevitably accompanied by many geological disasters, especially theseismic geological disaster occurs frequently, not only restricts the highway trafficsustainable and stable development Zone, but hinders the construction of nationaleconomy and the important factors for the development of.Study of whole area andhighway along seismic geological hazards distribution, as the highway disasters anddisaster fast assessment, ensure road safety is very important.Prominent disaster distribution in the focus area and severity, this paperintroduced the engineering design by using probabilistic seismic level concept,analysis of different probability levels of earthquake intensity, and then combinedwith the slope numerical simulation foundation, ground motion parameter, slope angle,lithologic divisions and other data, and finally through the GIS spatial analysis andforecast in different seismic probability level, along the line of highway geologicaldisaster distribution in the vicinity of.The results are as follows:1. Along the road of seismic geological disaster is more serious, and the complexgeological conditions, topography, the formation lithology, geological structure, thenew tectonic movement and earthquake activities.2. Because Wu Guan Expressway across the ditch around the mountain, hill bigchannel is deep, geological conditions are very complex, inconvenient transportation,construction conditions are very poor, management project is very difficult, with highsecurity level, so the geological disaster engineering management cost is relativelyhigh.The addition of highway geological disasters are widely distributed, the danger,and highway is a country western freeway network of roads, so the economicvulnerability, the disaster will also increase accordingly, governance costs.3. Based on the traditional paper map of earthquake hazard assessment,earthquake based on GIS geological hazard risk evaluation more efficient, rapid, the method has achieved very good results, thus expanding the seismic geological disasterassessment: Theory and practice.4. From the analysis of the predicted results, seismic and geological disasters in theactual area in the division of seismic landslide high risk area, and these high risk areadistributings mostly in high intensity, growth faults, lithology poorer area, the seismicgeological disaster distribution in fact basically is consistent.5. Influence of seismic disaster of many factors, the formation lithology, slope,elevation, earthquake intensity, earthquake intensity and other6indicators are themajor influence factors of seismic landslides, from data acquisition perspective thesedata acquisition is relatively easy.Others such as slope, rainfall on landslide also haveimportant influence factors in this paper because of some objective conditions beingconsidered, future work should also be taken into consideration.