概率积分法优化及其在地质灾害评价中的应用

The optimization of probability integral method and its application in geological hazard evaluation

矿产资源的开采,导致采空区域出现不同程度的地表沉陷和地表塌陷。主要针对地表沉陷区、地表塌陷区等地质灾害的特点,结合概率积分法的原有公式,引入参数对概率积分法原有公式进行优化,得到优化的概率积分公式。然后,依据实际工程案例,利用优化的概率积分公式及采空塌陷区地质灾害危险性评估因素对资源开采区域的地质灾害问题进行危险性评价。结果表明,利用优化的概率积分公式进行地质灾害的危险性评价,结果较准确,较好地满足了工程需要,可以为地质灾害危险性评价提供参考。

Along with the exploitation of mineral resources,results in disappearing varying degrees of surface subsidence.This article mainly based on characteristic of the surface subsidence,meanwhile,combining with the formula of probability integral method,bring in some parameters and make the primary formula get a optimiza⁃tion,and then obtain the new formula of probability integral method.Then,according to the actual engineering case,using the optimized probability integral formula and some factors of geological hazard evaluation in surface subsidence,carrying on geological hazard’s risk evaluation in the area of surface subsidence.The result shows that carrying on the geological hazard’s risk evaluation in the area of surface subsidence by utilizing the opti⁃mized formula of probability integral method achieved the good results,can meet the engineering needs,can pro⁃vide the references for the geological hazard risk evaluation.