Research on Pisha-sandstone's anti-erodibility based on grey multi-level comprehensive evaluation method

作     者：LI Xiao-yuan YUE Gao-fan SU Ran YU Juan 

作者机构：The Institute of Hydrogeology and Environmental GeologyCAGSShijiazhuang 050061China Hydrological Engineering&Geological Prospecting Institute of Hebei ProvinceShijiazhuang 050061China 

出 版 物：《Journal of Groundwater Science and Engineering》 (地下水科学与工程（英文版）)

年 卷 期：2016年第4卷第2期

页      面：103-109页

学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：financed by the basic scientific research project fund of the Institute of Hydrogeology and Environmental Geology of Chinese Academy of Geological Sciences(No.SK 201403) 

主　　题：Grey comprehensive evaluation Multi-layer Relation Anti-erodibility Pisha-sandstone 

摘      要：After a comprehensive analysis for the influential factors like anti-erodibility chemical constitutes, mineral components and micro-structure characteristics of the Pisha-sandstone, and by combining AHP and grey correlation analysis, the anti-erodibility quantitative comparison for 5 types of Pisha-sandstones in Ordos is made on the basis of the grey multi-layer comprehensive assessment mode. The result shows that, from the anti-erodibility point of view, the order of those types is: Pink sandstone, celadon sandstone, purple sandstone, grey sandstone and commixed sandstone. For the evaluation process adopts a simple method, a direct, reasonable and practical result is given, which is also identical to the result of the field survey on soil and rock erosion problems. Consequently, the research on the Pisha-sandstone s anti-erodibility issue is turned from the qualitative description process to the quantitative evaluation stage.