Results 21 to 30 of about 112 (86)
Study and Application of Similar Material Ratio in Collapsible Loess
Advances in Materials Science and Engineering, Volume 2021, Issue 1, 2021., 2021 The similar material of collapsible loess is the basis and premise of the experimental study on the surface movement and deformation law of coal seam mining in collapsible loess‐covered areas. The orthogonal experiment is used to make up similar material with different proportions using river sand and barite powder as aggregate, clay and gypsum as ...
Bingchao Zhao +6 more
wiley +1 more source
Meitan xuebao, 2023 The central and western coal resources have the highest degree of enrichment and superior development conditions in China. With the improvement of mining efficiency, the disturbance of high-intensity and large-mining-height mining mode to groundwater ...
Yifan ZENG +8 more
doaj +1 more source
Advances in Civil Engineering, Volume 2021, Issue 1, 2021., 2021 Geological tectonic movements, as well as complex and varying coal‐forming conditions, have led to the formation of rock partings in most coal seams. Consequently, the coal in coal‐rock composites is characterised by different mechanical properties than those of pure coal.
Dong Xu +4 more
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Meitan kexue jishu, 2023 Affected by the superposition of working face mining, strong rock pressure phenomena such as rock burst and large deformation easily occur in the gob-side entry when mining extra-thick coal seams. Taking the extra-thick coal seam mining of Caojiatan Coal
GAO Yubing +5 more
doaj +1 more source
Study on Development Law of Mining‐Induced Slope Fracture in Gully Mining Area
Advances in Civil Engineering, Volume 2021, Issue 1, 2021., 2021 The development law of mining cracks in shallow coal seams under gully topography was used as the research base to analyze the development characteristics of mining cracks in the 5‐2 coal mining face of Anshan Coal Mine, and the weak strength was established.
Tao Yang +5 more
wiley +1 more source
Analysis of Factors Influencing Mining Damage Based on Engineering Detection and Machine Learning
, 2022 The direct results of mining damage are overburden fracture and surface subsidence, which may induce groundwater seepage and surface vegetation degradation.
Yucheng Xia +5 more
core +1 more source
Journal of Sensors, Volume 2020, Issue 1, 2020., 2020 In order to study the regularity of overburden deformation and mining pressure changes in the stope. Take the geological conditions of Hanglaiwan coal mine in Yushen mining area as the background, a 3000 mm × 1340 mm × 200 mm physical similar material model was established in laboratory.
Wulin Lei +7 more
wiley +1 more source
groundwater, drainage experiment, evolution of flow field, hydrogeological parameters, steady flow,
Meikuang Anquan, 2020 The first mining face 122106 in Caojiatan Coal Mine was taken as the research object. The main water filling sources and water filling channels during the mining period of the working face are determined.
HUANG Hao, FANG Gang, LIANG Xiangyang, LIU Yang, HUA Zhaolai, LYU Yang
doaj +1 more source
Numerical Study of Damage to Rock Surrounding an Underground Coal Roadway Excavation
Advances in Civil Engineering, Volume 2020, Issue 1, 2020., 2020 In coal mines, underground roadways are required to transport coal and personnel. Such tunnels can become unstable and hazardous. This study simulates deformation and damage in the rock surrounding a shallow coal seam roadway using particle flow code. A numerical model of particle flow in the surrounding rock was constructed based on field survey and ...
Jiangbo Wei +5 more
wiley +1 more source
Distribution and controlled geological factors of oil-rich coal in shaanxi province
Meitan kexue jishu, 2023 The green, clean and efficient utilization of coal is an important way for the sustainable development of coal industry. Shaanxi province is rich in coal resources, which are mainly distributed in the five coal fields in the north of Shaanxi province ...
YANG Fu +6 more
doaj +1 more source