公开(公告)号：US20200325775A1

公开(公告)日：2020-10-15

申请号：US16666499

申请日：2019-10-29

Applicant: China University of Mining and Technology, Beijing

Inventor： Jiachen Wang ,  Shengli Yang ,  Hao Yue ,  Zhaohui Wang ,  Lianghui Li

IPC: E21C41/18 ,  E21B47/026 ,  G01V3/38 ,  H04W4/02

Abstract: Disclosed are systems and methods for acquiring movement information of a high-level rock stratum (HLRS) in a coal mine stope. The system includes information acquisition, information acquisition transfer, information storage and rock stratum position-state information analysis modules that are sequentially connected wireles sly; the information acquisition module is disposed in a drill hole of the HLRS; the information acquisition transfer module is disposed below the information acquisition module; the information storage module is disposed in a working area of the stope; the rock stratum position-state information analysis module is disposed in a haulage roadway of the stope. Movement information, acquired by the information acquisition module, of the HLRS is transferred to the storage module via the information acquisition transfer module in real time, and then is transmitted to the rock stratum position-state information analysis module for real-time processing, thereby obtaining the movement information of the HLRS and predicting a movement trend.

公开(公告)号：US20200292419A1

公开(公告)日：2020-09-17

申请号：US16666755

申请日：2019-10-29

Applicant: China University of Mining and Technology, Beijing

Inventor： Shengli Yang ,  Jiachen Wang ,  Hao Yue ,  Fengqi Liu ,  Yanyao Ma ,  Junjie Wang

IPC: G01M99/00

Abstract: The present invention provides an experimental platform for simulating a coal rock disaster of a coal mine extraction, including a base device, a coal simulation device, an immediate roof simulation device, a hydraulic support and a removable impact device. The coal simulation device is fixedly disposed on the base device; the hydraulic support is fixed on the base device and is located at one side of the coal simulation device; the immediate roof simulation device is disposed above the coal simulation device and the hydraulic support; the removable impact device is disposed above the immediate roof simulation device; the immediate roof simulation device is a rectangular frame; the rectangular frame is configured to pave a bulk simulation material and an immediate roof simulation material sequentially from the bottom up; and the removable impact device can impact the immediate roof simulation material and the bulk simulation material.

公开(公告)号：US11359999B2

公开(公告)日：2022-06-14

申请号：US16666755

申请日：2019-10-29

Applicant: China University of Mining and Technology, Beijing

Inventor： Shengli Yang ,  Jiachen Wang ,  Hao Yue ,  Fengqi Liu ,  Yanyao Ma ,  Junjie Wang

IPC: G01M99/00 ,  G01M17/00 ,  G05B17/02 ,  G01M7/08 ,  E99Z99/00

Abstract: The present invention provides an experimental platform for simulating a coal rock disaster of a coal mine extraction, including a base device, a coal simulation device, an immediate roof simulation device, a hydraulic support and a removable impact device. The coal simulation device is fixedly disposed on the base device; the hydraulic support is fixed on the base device and is located at one side of the coal simulation device; the immediate roof simulation device is disposed above the coal simulation device and the hydraulic support; the removable impact device is disposed above the immediate roof simulation device; the immediate roof simulation device is a rectangular frame; the rectangular frame is configured to pave a bulk simulation material and an immediate roof simulation material sequentially from the bottom up; and the removable impact device can impact the immediate roof simulation material and the bulk simulation material.