公开(公告)号：US20240346758A1

公开(公告)日：2024-10-17

申请号：US18580031

申请日：2023-03-27

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY

Inventor： Wei YANG ,  Wenyuan WANG ,  Yingte FENG ,  Wenxiao ZHANG ,  Zening WEI

IPC: G06T17/05 ,  G06F16/28 ,  G06T17/20

CPC classification number: G06T17/05 ,  G06F16/283 ,  G06T17/205 ,  G06T2210/56

Abstract: A mine digital model construction method based on a three-dimensional point cloud database is disclosed. Mine data resources are collected, valid coordinate point position information is extracted according to point cloud data extraction standards, and a mine three-dimensional point cloud database is established; a model of rock strata boundary surfaces, mining areas, and tunnels is constructed, a surface three-dimensional geological model is constructed, and a mine three-dimensional geological model is further constructed; and division into grids is performed to obtain a mine extraction inversion digital model. According to the method, a mine three-dimensional point cloud database can be obtained, and various identified rock strata topographies, positions of mining areas and tunnels, fault morphologies, and surface morphologies can be restored; mine extraction inversion digital models having different precisions can be constructed, a foundation is laid for crustal stress field inversion, and a reliable basis is provided for mine disaster prevention and control.

公开(公告)号：US20240378337A1

公开(公告)日：2024-11-14

申请号：US18293864

申请日：2023-03-27

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY

Inventor： Wei YANG ,  Zening WEI ,  Yingte FENG ,  Wenxiao ZHANG ,  Wenyuan WANG

IPC: G06F30/17 ,  G06T17/05

Abstract: The present invention relates to a mine stress field twin modeling assimilation system for a full space-time mining process, and a method, and belongs to the technical field of digital twin assimilation inversion. The system comprises a digital model unit, a physical model unit and a human-computer interaction unit. The digital model unit is provided with an equal-proportion three-dimensional geological model, a mine historical assimilation model and a trusted digital twin model; the physical model unit covers a stratum and a mining face tunnel system, and the human-computer interaction unit has an information database and a software simulation monitoring interface. By means of a software establishment model, assimilation technology optimization model operation and a digital twin technology interconnection physical entity and virtual model, the present invention is able to construct a mine in-situ stress field twin model aimed at a full space-time mining process and better approximating reality, and is likewise able to use real physical scene monitoring data to perform simulated pre-mining in a virtual spatial model, aimed at grasping the space-time evolution laws of stress fields in the mining process, and providing guidance for safe mining production.