公开(公告)号：US11408806B2

公开(公告)日：2022-08-09

申请号：US16976715

申请日：2018-08-24

Applicant: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Wenbin Sun ,  Houqian Du ,  Yanchao Xue ,  Jianli Shao ,  Liming Yin ,  Fei Zhou

IPC: G01N3/06 ,  G01N3/08

Abstract: A system and method for monitoring crack propagation of a transparent rock specimen monitors a breakage process of a specimen loading process. In the system and method for monitoring crack propagation of a transparent rock specimen, under the condition of no contact with a rock specimen, intensity changes of laser light passing through the transparent rock specimen in a loading state are determined, such that a computer (5) forms, according to laser intensity change data, a three-dimensional diagram of crack propagation of the transparent rock specimen (4) in a continuously loaded state at a plurality of set time points. This is used to analyze a breakage starting point and a crack propagation path and process of the transparent rock specimen (4) in the loading state, and achieve the purpose of qualitative analysis of the rock specimen.

公开(公告)号：US11828177B2

公开(公告)日：2023-11-28

申请号：US17649015

申请日：2022-01-26

Applicant: Shandong University of Science and Technology

Inventor： Jinhai Zhao ,  Liming Yin ,  Xinguo Zhang ,  Wenbin Sun ,  Changjian Zhou ,  Juntao Chen ,  Shichuan Zhang ,  Ning Jiang ,  Yangyang Li ,  Yin Liu ,  Yunzhao Zhang ,  Shupeng Zhang ,  Zhixue Zhang ,  Yang Qiao ,  Dan Kang

IPC: E21C41/32 ,  F24T50/00 ,  F24T10/30

CPC classification number: E21C41/32 ,  F24T50/00 ,  F24T10/30 ,  F24T2201/00 ,  Y02E10/10

Abstract: The present disclosure provides a comprehensive utilization method and test equipment for surface water, a goaf and geothermal energy in a coal mining subsidence area. The method comprises the following steps: determining a geothermal water collection area, arranging heat energy exchange equipment in a main roadway, and arranging a geothermal water extraction system, wherein the geothermal water extraction system comprises geothermal wells, extraction pipelines and tail water reinjection pipelines, the extraction pipelines are connected with the heat energy exchange equipment, and the tail water reinjection pipelines are connected with a water outlet of the heat energy exchange equipment; arranging a water channel on the surface, and arranging a drainage system on a subsidence trough to guide surface water to flow underground; and controlling directional and ordered flow of surface water through the coal mining subsidence area formed by ground mining to achieve sustainable mining of underground water.