采动岩层多相多场耦合运动数字孪生方法构想
Research framework of digital twin construction method for mining induced strata movement under multiphase and multifield coupling
黄炳香 1韩晓克 1赵兴龙 1王茗可 1罗颖 1吴占伟 1李炳宏 1刘友乐1
作者信息
- 1. 中国矿业大学煤炭精细勘探与智能开发全国重点实验室,江苏徐州 221116
- 折叠
摘要
采动岩层运动与流体运移规律是采矿的核心共性科学问题,也是煤系矿产协调开采的纽带.传统监测方法不能全局直观展示地下岩层与流体三维实时运动,急需提出一种采动岩层多相多场耦合运动数字孪生方法,明晰采矿活动中的岩层运动与流体运移,指导工程实践.以煤铀协调开采为典型场景,基于现场数据进行矿区水文地质三维建模,挖掘采动岩层多相多场耦合运动内在规律并建立机理模型,搭建物联网进行岩层运动与流体运移等信息动态感知,反演实时监测数据建立全局时空信息数据库,融合运用机器学习与数值计算手段构建多源数据驱动的数字孪生体,结合实测与孪生数据进行自主分析决策调控,可以整体形成协调开采采动岩层多相多场耦合运动的数字孪生.采动岩层多相多场耦合运动数字孪生可覆盖矿山的"建井—智能开采—退役治理"全过程,实现对矿区水文地质情况以及开采行为影响的全面刻画,有效指导全生命周期采矿规划.
Abstract
The laws of mining induced strata movement and fluid migration are core common scientific issues of mining,and they are also the link for coordinated mining of coal series min-erals.Traditional monitoring methods cannot visually display the 3D real-time motion of strata and fluid globally.It is urgent to propose a digital twin method which can clarify the strata movement and fluid migration in mining activities,thus to guide engineering practice.This pa-per taking the coordinated mining of coal and uranium as a typical scenario.A 3D hydrogeologi-cal model of the mining area can be conducted based on on-site data.The inherent laws of min-ing induced strata movement under multiphase and multifield coupling can be explored to es-tablish mechanisms models.The Internet of Things can be built to dynamically perceive infor-mation of strata movement and fluid migration.Real time monitoring data can be inverted to establish a global spatiotemporal information database.Machine learning and numerical calcu-lation methods can be integrated to construct a multi-source data-driven digital twin.Combined with on-site data and digital twin data,autonomous analysis and decision-making regulation can be carried out.By the above way,a digital twin of mining induced strata movement under multiphase and multifield coupling can be formed.It can cover the entire process of"mine con-struction-intelligent mining-retirement management".And it can be used to achieve a compre-hensive characterization of the mining area hydrogeological conditions and the impact of mining behavior,effectively guiding the full life cycle mining planning.
关键词
岩层运动/流体运移/多相多场耦合/数字孪生/协调开采Key words
strata movement/fluid migration/multiphase and multifield coupling/digital twin/coordinated mining引用本文复制引用
出版年
2024
NETL
NSTL
万方数据