基于空间滤波多响应面法的边坡稳定性可靠度分析  

Reliability analysis of slope with response surface method based on spatial filtering

作　　者：张光耀[1] 孙树林[1] Zhang Guangyao Sun Shulin(Hohai University, School of Earth Science and Engineering, Nanjing, Jiangsu, 210000)

机构地区：[1]河海大学地球科学与工程学院,南京210000

出　　处：《中国煤炭地质》2017年第6期58-62,共5页Coal Geology of China

基　　金：江苏省环境保护厅项目(201029);留学回国人员科研基金(20071108);河海大学水文水资源与水利工程科学国家重点实验室开放研究基金(2005408911)

摘　　要：多响应面法存在越多的子区域划分带来更多的计算量,且无法有效地解决子区域交接处的拟合精度等问题。采用空间滤波法对多响应面法进行改进,构建了基于空间滤波的多响应面法,将蒙特卡洛抽样后的初始值进行空间滤波处理以消除多响应面子区域交接处的突兀点,提高可靠度计算精度和计算效率。最后将该方法应用于边坡工程实例中计算可靠度,并与MSARMA法和多响应面法的计算结果进行对比分析。结果表明:空间滤波后的可靠度计算结果要比处理前精度更高,也与原MSARMA法计算结果接近。证明了空间滤波处理的有效性,也类似为工程地质灾害防治提供了参考。The more sub- region division of multi- response surface method brings more computational complexity, and can not solve the problem of fitting precision of sub - region junction. In this paper, the multi - response surface method is improved by spatial filtering method, and the multi - response surface method based on spatial filtering is constructed. The initial values of Monte Carlo sampling are processed by spatial filtering to eliminate the abrupt points and make multi - response surface reliability calculation accuracy and efficiency. At the end of this paper, the method is applied to the calculation reliability in the slope engineering example, and com- pared with the calculation results of the MSARMA method and the multi - response surface method, the validity of the method is veri- fied, which can provide reference for the engineering geological hazard prevention and control.

关 键 词：空间滤波 多响应面 可靠度 边坡稳定性分析 

分 类 号：P642.22[天文地球—工程地质学]