A5101407932- Rock Mechanics and Modeling
- Geomechanics and Mining Engineering
- Geoscience and Mining Technology
- Geotechnical and Geomechanical Engineering
- Tailings Management and Properties
- Grouting, Rheology, and Soil Mechanics
- Landslides and related hazards
- Coal Properties and Utilization
- Geotechnical Engineering and Analysis
- Mineral Processing and Grinding
- Tunneling and Rock Mechanics
- Blasting Impact and Analysis
- Geothermal Energy Systems and Applications
- Drilling and Well Engineering
- Concrete and Cement Materials Research
- Soil and Unsaturated Flow
- Mining and Resource Management
- High-pressure geophysics and materials
- Geophysical Methods and Applications
- Belt Conveyor Systems Engineering
- Civil and Geotechnical Engineering Research
- Thermography and Photoacoustic Techniques
- Hydrocarbon exploration and reservoir analysis
- Coal and Its By-products
- Mining and Gasification Technologies
China University of Mining and Technology
2015-2024
Taiyuan University of Technology
2019-2020
The University of Western Australia
2017-2019
State Key Laboratory of Coal Resources and Safe Mining
2019
Ministry of Natural Resources
2019
Ministry of Education of the People's Republic of China
2017
Yankuang Energy Group Company Limited (China)
2013
Institute of Geology and Geophysics
2007-2009
Chinese Academy of Sciences
2007-2009
Aiming to address the following major engineering issues faced by Pingdingshan No. 12 mine: (1) difficulty in implementing auxiliary lifting because of its depth (i.e., beyond 1000 m); (2) highly gassy main coal seam with low permeability; (3) unstable overlying without suitable conditions for conventional mining techniques protective seam; and (4) predominant reliance on “under three” resources ensure production output. This study proposes an integrated, closed-cycle mining-dressing-gas...
This study seeks to address the problems of major geo-environmental hazards caused by high-intensive coal mining in China’s western eco-environment frangible area including strong pressure, surface subsidence, soil and water loss, land desertification. Using at Xiao-jihan Coal Mine, this paper investigates compaction characteristics aeolian sand-based backfilling materials, then evolution water-conducting fractures deformation laws with different backfill material’s compression ratios...
Recently, solid waste backfill mining has rapidly developed, finding application in the control of surface subsidence and reduction accumulated wastes. However, with depth, technique faces a number other problems, regard to source materials, transportation costs, deep multiple coal mining. In this article, an integrated system comprising mining, coal-gangue dressing, underground is proposed on basis field-work. Analysis type, construction, protection standards buildings resulted elaboration...
Based on techniques of close upper protective coal-rock layer mining, relieved gas extraction, and underground gangue washing-discharging-backfilling, this paper initiates the concept mixed fully-mechanized coal which combines a solid backfilling method caving (hereinafter referred to as “backfill mining”). After principle key are introduced, physical simulation experiment numerical used study characteristics overlying strata’s fracture development, main roof subsidence, stress field its...
The microstructure and mineral composition of the gangue play a decisive role in precipitation heavy metal elements. In this study, microstructure, composition, elements coal with different weathering degrees were analyzed through electron microscopy, X-ray diffraction, static immersion leaching experiments. following results derived. (1) After gangue, its compactness integrity changed significantly. structure transformed from relatively dense to loose, development large pores fractures...
Quenching cycle has practical significance in the study of rock properties with regard to cooling drilling fluid, development geothermal resources and tunnel fire rescue. In this study, a Brazil splitting experiment was conducted granite that is subjected different temperatures up 650°C quenching times 1–20. The results indicate tensile strength negatively correlated temperature number cycles. wave velocity decrease as increases for same cycle. When cycles >5, influence on relatively...