煤田地质与勘探2025，Vol.53Issue(6)：212-222,11.DOI:10.12363/issn.1001-1986.25.04.0256
深部开采覆岩结构面演变过程孔壁图像数字式描述方法
The borehol wall image digital description method of the overlying rock structural planes evdution process in deep mining
摘要
Abstract
[Objective]In China,as mineral resource mining is increasingly expanding towards the deep parts of the Earth,the safe and efficient exploitation of deep resources has become a major strategic and technological challenge at the national level to be addressed urgently.Understanding the movement patterns of mining-affected strata in deep envir-onments will assist in improving the intelligent prevention and control of mine disasters,thereby ensuring the safe and efficient exploitation of deep resources.[Methods]Targeting the complex and diverse forms of the overburden's struc-tural planes in deep mining,as well as a lack of characterization methods tailored to the evolutionary process of the structural planes,this study proposed a digital characterization method based on borehole wall images.First,by lever-aging the structural information of rock masses derived from borehole wall images,this study developed a method for describing characteristic points that reflect the spatial morphologies and locations of structural planes.This allowed for the digitization of the three-dimensional spaces of the overburden's structural planes.Second,based on the typical evolu-tionary characteristics of the structural planes,this study established a characterization system for the evolutionary pro-cess of the overburden's structural planes,which involved the linear movement,torsional movement,and thickness evol-ution of the structural planes.Last,the proposed method was applied to a practical case,demonstrating its superiority in the fine-scale characterization of the evolutionary process of key zones of the structural planes compared to traditional simple image-based characterization methods.[Results and Conclusions]The proposed method can present the evolu-tionary characteristics of the structural planes of rock masses at different deep locations in the form of three-dimensional point cloud coordinates.Compared to traditional image display,the scatter plots of spatial characteristic points present more detailed change processes,enabling a more fine-scale characterization of the evolutionary process of key zones and the rapid search of typical characteristic zones of rock movement.The proposed method provides a more convenient di-gital basis for revealing the variation patterns of internal rock movement in the mining process,serving as a new digital method to characterizing evolutionary processes in research on the movement of strata during mine exploitation.关键词
深部开采/覆岩结构/岩层移动/孔壁图像/演变过程/特征描述Key words
deep mining/structure of the overburden/movement of strata/borehole wall image/evolutionary process/fine-scale characterization分类
矿业与冶金引用本文复制引用
汪进超,邹俊鹏,李生海,王超,李晓斌..深部开采覆岩结构面演变过程孔壁图像数字式描述方法[J].煤田地质与勘探,2025,53(6):212-222,11.基金项目
煤炭开采水资源保护与利用国家重点实验室2020年开放基金课题(GJNY-20-113-07) （GJNY-20-113-07）
湖北省重点研发计划项目(2023BAB099) （2023BAB099）
国家自然科学基金联合基金项目(U24A20599) （U24A20599）
