新疆大区域滑坡地质灾害危险性评价研究

摘要

文中通过定性和定量相结合的方法,从灾害形成机理孕灾和致灾两个角度选取因子,最后将实际筛选出的高程、坡度、断层、岩性、道路及降雨等因子纳入到新疆滑坡地质灾害危险性评价中,并针对新疆大区域因子量化的问题上给出解决思路,最后将GIS技术和统计学方法相融合构建新疆滑坡地质灾害评价模型,并对其进行评估.实验结果表明,综合GIS技术和统计学方法相融合可以解决大区域地质灾害危险性评价的问题,评价效果较好,具有实践价值.%Through the combined method of qualitative and quantitative,the paper constructs the risk assessment index system according to inoculate and cause disasters aspects,and the actual selected elevation,slope,fault,lithology,road and rainfall factors into the geological hazard assessment of landslide in Xinjiang.And the solution to quantifying factors on large area of Xinjiang is given.Finally, geological disaster evaluation model of Xinjiang is constructed by combining GIS technology with statistical method to evaluate the landslide hazard.The experimental results show that,the combination of GIS technology and statistical method can solve the problem of regional geological hazard assessment,of which the effect is good and has practical value.