公开(公告)号：US11215542B2

公开(公告)日：2022-01-04

申请号：US16652961

申请日：2019-02-28

Applicant: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Xuesheng Liu ,  Shilin Song ,  Yunliang Tan ,  Deyuan Fan ,  Jianguo Ning ,  Qingheng Gu ,  Ning Jiang ,  Jun Wang ,  Qiang Xu

IPC: G01N3/12 ,  G01N3/307

Abstract: A rock mechanics test system with impact loading-confining pressure unloading and its usage method. The test system includes bearing frame unit, axial compression loading unit, impact loading unit and confining pressure loading unit. The bearing frame unit includes pedestal, column and cross beam. The column is vertically installed on both sides of the upper surface of the pedestal, and the cross beam is horizontally fixed on the upper part of the column. The axial compression loading unit is fixed at the middle position of the upper surface of the pedestal and is used to exert the axial bottom-up pressure to the sample. The impact loading unit is fixed on the cross beam and is used to exert the axial top-down impact load on the sample.

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.