采掘工作面地质信息数字孪生技术  

Digital twin technology of geological information in mining and excavation working face

作　　者：李鹏[1,2] 程建远 LI Peng;CHENG Jianyuan(College of Geology and Environment,Xi’an University of Science and Technology,Xi’an 710054,China;Xi’an Research Institute(Group)Co.Ltd.,China Coal Technology and Engineering Group Corp.,Xi’an 710077,China)

机构地区：[1]西安科技大学地质与环境学院,陕西西安710054 [2]中煤科工西安研究院(集团)有限公司,陕西西安710077

出　　处：《煤田地质与勘探》2022年第11期174-186,共13页Coal Geology & Exploration

基　　金：国家重点研发计划课题(2018YFC0807804);天地科技股份有限公司科技创新创业资金专项资助项目(2019-TD-ZD003,2020-TD-ZD002)。

摘　　要：矿井地质透明化是智能化煤矿建设的基础,三维地质建模是实现矿井地质透明的重要手段,以往采掘工作面地质建模存在插值算法不符合地质规律、多源异构地质数据融合程度低,以及煤矿生产装备与地质信息耦合少等问题。提出煤矿采掘工作面地质信息数字孪生的概念,采用离散光滑插值(Discrete Smooth Interpolation,DSI)算法,利用钻探数据及地震构造解释数据地质建模,建立DSI平行相似约束后迭代计算得到的地质综合模型。开发了三维地质建模软件,实现了点(地质点)、线(地质界线、地层界线)、面(三维地质界面)、体(封闭地质体)4种地质对象的构建,在体对象基础上开发了立方网功能,基于区域统计学算法对体对象内的空间数据进行属性插值。使用建模软件构建掘进、回采工作面数字孪生的地质模型载体,接入微震监测系统、电阻率监测系统、随掘地震监测系统、随采地震监测系统实时监测数据,实现工作面地质信息数字孪生,反映采掘扰动下的地质变化;为煤矿掘进生产提供基于地质模型的场景仿真和掘进规划巷道断面曲线下发,指导掘进机自主掘进,提供掘进前方地质异常距离预警,保障掘进地质安全;为回采工作面提供基于地质模型的场景仿真和规划截割曲线,指导采煤机自主规划截割,提供回采前方地质异常构造位置、应力集中区位置距离预警,提高回采工作的安全性。该技术在内蒙古鄂尔多斯唐家会煤矿进行了应用,为安全、高效采掘工作提供地质保障。The mine geology transparency is the basis for the intelligent coal mine construction.3D geological modeling is an important measure for realizing the mine geology transparency.In the geological modeling of the previous working face,there are problems including the discrepancy between the interpolation algorithm and the geological law,the low fusion level of the multi-source heterogeneous geological data,and the seldom coupling between the coal mine production equipment and the geological information.The concept of the digital twin of the geological information about coal mine working face was proposed,the discrete smooth interpolation(DSI)algorithm was adopted,and the drilling data and seismotectonics interpretation data were utilized for geological modeling,so as to establish the comprehensive geological model obtained through the iterative computation after the DSI parallel similar restriction.The 3D geological modeling software was developed;the building of four geological objects,i.e.the point(geological observation point),boundary(geological boundary and stratigraphic boundary),interface(3D geologic interface)and body(closed geologic body)was fulfilled;the cubic grid function was developed based on the body object;the attribute interpolation of the spatial data within the body object was carried out based on the regional statistical algorithm.The modeling software was used to establish the geological model carrier of the digital twin at the mining and excavation working face.The monitoring systems for microseism,electric resistivity,seismic while tunneling and seismic while ming were connected to fulfill the real-time data monitoring,realize the digital twin of the geological information about the working face,and reflect the geological change under the mining and tunneling disturbance.The scenario simulation and tunneling planning tunnel fault curve plotting based on the geological model were provided for the coal mine tunneling,so as to guide the tunnelling machine in independent tunneling,provide the dis

关 键 词：回采工作面 掘进工作面 地质透明化 三维地质建模 信息数字孪生 

分 类 号：P623[天文地球—地质矿产勘探]