露天采矿技术2026，Vol.41Issue(4)：44-50,7.DOI:10.13235/j.cnki.ltcm.20250348
黑岱沟露天煤矿岩体多源物理力学参数表征模型的构建
Construction and application of multi-source geomechanical parameter characterization model in Heidaigou Open-pit Coal Mine
摘要
Abstract
As one of China's large-scale open-pit coal mines,Heidaigou Open-pit Coal Mine is characterized by its huge mining scale and complex diverse geological conditions.Taking Heidaigou Open-pit Mine as a research case,this article uses the distinct characteristics of mining engineering geological data to generate a three-dimensional fracture network based on the distribution of fractures in rocks,and determines the representative elementary volume(REV)of rock masses by calculating the volumetric joint count(Jv).Based on statistical characteristics of geological data,and adopts geological statistical methods(inverse distance weighting)to establish a spatial distribution block model of Geologic Strength Index(GSI)and rock mechanical properties.Subsequently,a spatial variability model of mechanical parameters for layered rock masses is developed based on the Hoek-Brown criterion.Finally,based on established heterogeneous mechanical model,the article carries on slope stability analysis.The results show that each engineering area of the layered slope exhibits unique mechanical parameters,while displaying a significant layered distribution pattern at the macroscopic level.When spatial variability is considered,the mechanical model has a remarkable impact on slope stability results.This research method helps accurately quantify the heterogeneity of mechanical parameters in layered slopes without incurring excessive additional survey costs,enabling more reasonable interpretation of slope failures.关键词
露天矿/岩体质量评价/空间变异性/非均匀性/表征单元体/边坡稳定性Key words
open-pit mine/rock mass quality assessment/spatial variability/heterogeneity/representative elementary volume(REV)/slope stability phenomenon分类
建筑与水利引用本文复制引用
王小军,王轲立,刘亚超,杨天鸿,张鹏海..黑岱沟露天煤矿岩体多源物理力学参数表征模型的构建[J].露天采矿技术,2026,41(4):44-50,7.基金项目
鄂尔多斯市科技重大"揭榜挂帅"资助项目(JBGS-2023-003) （JBGS-2023-003）
