中关铁矿岩体质量空间分布预测  

Prediction of Spatial Distribution of Rock Mass Quality in Zhongguan Iron Mine

作　　者：王志国 吴仪慧 方博然 卢聚强 王瑞 WANG Zhiguo;WU Yihui;FANG Boran;LU Juqiang;WANG Rui(College of Mining Engineering,North China University of Science and Technology,Tangshan,Hebei 063210,China;Green Intelligent Mining Technology Innovation Center of Hebei Province,Tangshan,Hebei 063210,China;Shandong Luqiao Group Co.,Ltd.,Jinan,Shandong 250014,China)

机构地区：[1]华北理工大学矿业工程学院,河北唐山市063210 [2]河北省矿山绿色智能开采技术创新中心,河北唐山市063210 [3]山东省路桥集团有限公司,山东济南250014

出　　处：《矿业研究与开发》2025年第3期111-118,共8页Mining Research and Development

基　　金：河北省中央引导地方科技发展资金项目(246Z4207G,246Z4101G)。

摘　　要：获取岩体稳定性级别,对矿体深度开采、围岩支护以及采空区的充填具有十分重要的意义。基于中关铁矿的工程地质条件,通过室内岩石力学基本性质试验、现场岩石力学测试、现场岩体节理调查、地应力测试等,确定了测点位置岩石基本质量BQ值;利用ArcGIS软件的数据处理和空间分析功能,通过克里金插值技术建立了研究区域岩体质量的空间分布预测模型,应用该模型预测分析-230 m水平矿体的岩体质量,并进行现场实测验证。结果表明:岩体质量空间分布预测结果与实际情况具有较好的一致性,中关铁矿-230 m水平矿体基本质量BQ值为57.843~347.573,处于第Ⅳ和第Ⅴ等级,矿体质量较差,易破碎、不稳定。研究获取的岩体质量空间分布预测模型为研究岩体工程未完全揭露情况下岩体稳定性级别提供了方法,也为后续中关铁矿的安全开采提供了理论依据。Obtaining the stability level of rock mass is of great significance to the deep mining of ore body, surrounding rock support and filling of goaf. Based on the engineering geological conditions of Zhongguan Iron Mine, the basic quality BQ values of rock mass at the measuring points were determined through laboratory rock mechanics basic property test, field rock mechanics test, field rock joint investigation and in-situ stress test. Using the data processing and spatial analysis function of ArcGIS software, the spatial distribution prediction model of rock mass quality in the study area was established through Kriging interpolation technology. The rock mass quality of-230 m horizontal ore body was predicted and analyzed using the model, and the field measurement verification was carried out. The results show that the prediction results of the spatial distribution of rock mass quality are in good agreement with the actual situation. The basic quality BQ value of the-230 m level ore body in Zhongguan Iron Mine is 57.843-347.573, which is in the fourth and fifth grades. The ore body quality is poor, easy to break and unstable. The spatial distribution prediction model of rock mass quality can provide a method for studying the stability level of rock mass under the condition that rock mass engineering is not fully exposed, and also can build a theoretical basis for the safe mining of Zhongguan Iron Mine in the future.

关 键 词：岩体基本质量 BQ空间分布 ARCGIS 克里金插值 

分 类 号：TD853[矿业工程—金属矿开采]