Results 71 to 80 of about 902 (192)
, 2011 The size of the fully mechanized caving face is optimized by theoretical analysis and the dip length of the face is determined as 260m. With the method of numerical simulation, the reasonable cutting height of the face is determined as 3.5m and the ...
Shan Chao Hu +2 more
core +1 more source
, 2021 The overrunning disaster of harmful gas tends to occur in the working face in thick coal seam with high gas concentration, as the fully mechanized caving stope has the characteristics of high mining intensity, high remnant coal, and high gas content ...
Li Chong, He Sifeng, Xu Zhijun
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Energy Science &Engineering, Volume 14, Issue 4, Page 1851-1863, April 2026.With the advancement of coal mining technology driving the development of working faces toward increased mining heights and extended lengths, the enlargement of face dimensions has led to expanded overlying strata failure zones and intensified ground pressure manifestations. Consequently, traditional methods for determining hydraulic support resistance
Chen Gong +5 more
wiley +1 more source
, 2021 In order to study the technical problems in the mining of irregular working face and the law of underground pressure in the mining process, take the 81308 fully mechanized caving face of Baode Coal Mine as the background, this paper uses theoretical ...
YANG Xiaodong, LI Cunzhou
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Energy Science &Engineering, Volume 14, Issue 4, Page 2118-2136, April 2026.In this study, the key control mechanism of surrounding rock stability is revealed by theoretical analysis and UDEC‐Trigon numerical simulation method, aiming at the problem that oil shale roof is prone to separation and slip deformation under complex stress.
Jiang Xiao +5 more
wiley +1 more source
Characters Evaluation of Ground Pressure in Fully Mechanized Top Coal Caving Face in Soft Coal Seams
, 2011 Based on the big thickness, low stiffiness and other characters of No. 8 coal seam in Huaibei mining area, the moving laws of top coal seam and roof, and distribution law of ground pressure were studied under the fully mechanized top coal caving.
Yang Li, Xiao Hua Wu, Wei Dong Pan
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, 2022 Because of the problem of gangue discharge and surface subsidence during coal mining, the current research on underground filling mainly focuses on the paste filling, solid filling, and grouting filling of the overburden separation layer after ...
Yanpeng He +7 more
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Deep Underground Science and Engineering, Volume 5, Issue 1, Page 127-143, March 2026.In this study, the nonuniform distribution of the bearing pressure in front of the coal wall has been revealed based on in situ monitoring data and numerical simulation results. Therefore, an eccentric compression mechanical model of the coal wall was established to study the deformation and failure characteristics of a coal wall. The slenderness ratio
Maolin Tian +6 more
wiley +1 more source
Application of Modified Composite Slurry in Fire Area of Surface Slag Table
Meikuang Anquan, 2020 During the normal mining process, the working face is vulnerable to the harmful gas intrusion from high temperature fire area of surface slag table because of its fracture in the overlying surface of the fully mechanized caving face with close distance ...
WANG Gang
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Meikuang Anquan, 2020 To study the distribution law of spontaneous combustion "three zones" under the condition of gas extraction by buried pipe in goaf during coal mining, taking the goaf of 81307 fully mechanized caving face in Baode Coal Mine as the research background ...
LI Feng, LUO Huogen, WANG Chao
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