Research framework of digital twin construction method for mining induced strata movement under multiphase and multifield coupling
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.
strata movementfluid migrationmultiphase and multifield couplingdigital twincoordinated mining
NETL
NSTL
万方数据
