Jieyang Ma
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View article: Effects of Lithology Combination Compaction Seepage Characteristics on Groundwater Prevention and Control in Shallow Coal Seam Group Mining
Effects of Lithology Combination Compaction Seepage Characteristics on Groundwater Prevention and Control in Shallow Coal Seam Group Mining Open
The mining of shallow coal seam groups triggers mine water inrush and ecological environment destruction. Effective groundwater prevention and control requires controlling the compaction and seepage characteristics (CSCs) of broken rock in…
View article: Interaction law between mining stress and fault activation and the effect of fault dip angle in longwall working face
Interaction law between mining stress and fault activation and the effect of fault dip angle in longwall working face Open
View article: Seepage-heat accumulation characteristics and hydrothermal transport calculation model in mining-induced fractured rock mass: Implications for geothermal water control
Seepage-heat accumulation characteristics and hydrothermal transport calculation model in mining-induced fractured rock mass: Implications for geothermal water control Open
The aim of this paper is to explore hydrothermal transport in surrounding rocks during deep mining, focusing on the mechanisms and key factors influencing groundwater seepage and heat accumulation disasters. Stress–seepage coupling tests w…
View article: Damage evolution law of multi-hole blasting igneous rock and quantitative evaluation model of damage degree based on fractal theory and clustering algorithm
Damage evolution law of multi-hole blasting igneous rock and quantitative evaluation model of damage degree based on fractal theory and clustering algorithm Open
The geological phenomenon of igneous rock invading coal seam is widely distributed, which induces mining risk and affects efficient mining. The pre-splitting blasting method of igneous rock is feasible but difficult to implement accurately…
View article: Compressive Failure Characteristics of a Coal–Rock Combination at Different Angles: Experimental Study and Fractal Analysis
Compressive Failure Characteristics of a Coal–Rock Combination at Different Angles: Experimental Study and Fractal Analysis Open
In order to explore the influence of dip angles on the deformation and failure of a coal–rock combination, uniaxial compression experiments were carried out on a coal–rock combination with different dip angles, and the acoustic emissions (…
View article: Key Bearing Structure Instability Mechanism: A Case Study in Mining Under Close‐Distance Coal Pillar
Key Bearing Structure Instability Mechanism: A Case Study in Mining Under Close‐Distance Coal Pillar Open
This study is aimed at solving the issue of mining under the boundary coal pillar of the close‐distance coal seam that causes roof falling. This study established a new key bearing structure model for analyzing the structural instability m…
View article: Study of energy-efficient heat resistance and cooling technology for high temperature working face with multiple heat sources in deep mine
Study of energy-efficient heat resistance and cooling technology for high temperature working face with multiple heat sources in deep mine Open
In the present research, we proposed a scheme to address the issues of severe heat damage, high energy consumption, low cooling system efficiency, and wastage of cold capacity in mines. To elucidate the seasonal variations of environmental…
View article: Numerical Simulation Study on Stability Control Technology of Large-Area Wall Caving Area (LAWCA) in Large-Inclined Face
Numerical Simulation Study on Stability Control Technology of Large-Area Wall Caving Area (LAWCA) in Large-Inclined Face Open
The caving characteristics of the goaf significantly impact the mining stability of the working face. The coal-forming environment of the steeply dipping coal seam is complex. After mining, the caving rock mass rolls to the lower part of t…
View article: A New Method to Assess Thick, Hard Roof-Induced Rock Burst Risk Based on Mining Speed Effect on Key Energy Strata
A New Method to Assess Thick, Hard Roof-Induced Rock Burst Risk Based on Mining Speed Effect on Key Energy Strata Open
Roof-type rock burst (RTRB) frequently occurs in the hard, thick roof of working faces, which causes roadway failure, facility damage and even personnel casualties. Previous research results show that mining speed has obvious effects on th…
View article: Study on evolution law of bearing stress of coal pillar in steeply inclined coal seam section of mountain topography
Study on evolution law of bearing stress of coal pillar in steeply inclined coal seam section of mountain topography Open
The stability of section coal pillar in steeply inclined coal seam under mountain landform is beneficial to the stability of surface and mountain. Based on the engineering background of N2821 working face in Fengchun coal mine, the force m…
View article: Research on Fractal Evolution Characteristics and Safe Mining Technology of Overburden Fissures under Gully Water Body
Research on Fractal Evolution Characteristics and Safe Mining Technology of Overburden Fissures under Gully Water Body Open
A fractal realizes the quantitative characterization of complex and disordered mining fracture networks, and it is of great significance to grasp the fractal characteristics of rock movement law to guide mine production. To prevent the wat…
View article: Comprehensive and Dynamic Cooling Technology of High-Temperature Working Face with Multiple Heat Sources in Coal Seam Prone to Spontaneous Combustion
Comprehensive and Dynamic Cooling Technology of High-Temperature Working Face with Multiple Heat Sources in Coal Seam Prone to Spontaneous Combustion Open