Results 71 to 80 of about 1,887 (217)
Survey on roof movement of the gangue backfill working face [PDF]
, 2019 This paper studied the roof movement characteristics of LW1302N-1 with gangue backfill mining in Shandong Xinjulong Company of China. The monitoring of roof subsidence of the gob and bearing stress of filled gangue was carried out by using the roof ...
Guangjing Sun, Jinhai Liu, Tao Feng
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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
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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, 2021 In order to realize the safety, high efficiency and high recovery rate mining of 9-13 m thickness hard coal seam in Jinjitan Coal Mine, the top coal recovery rate and coal wall stability of different cutting heights are analyzed by theoretical analysis ...
MENG Xiangjun +6 more
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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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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
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The Breaking Span of Thick and Hard Roof Based on the Thick Plate Theory and Strain Energy Distribution Characteristics of Coal Seam and Its Application [PDF]
, 2017 In mining engineering, the thick and hard roof threatens the safe production. Based on Reissner plate theory and combined with weighted residual method, with four edges clamped as the boundary conditions, this paper deduces the theoretical formula of the
Changwu Liu +3 more
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Study on the development law of advancing support pressure on fully mechanized caving face
IOP Conference Series: Earth and Environmental Science, 2021 Abstract In order to master the law of pressure manifestation in fully mechanized caving face, numerical simulation method is adopted to establish a physical and mechanical model for analysis. The results show that the load on the working face support is mainly the deformation pressure produced by the deformation of the top coal and the ...
openaire +1 more source
Failure Mechanism of Asymmetric Large Deformations Under Repeated Mining in Roadways
Energy Science &Engineering, Volume 14, Issue 3, Page 1195-1212, March 2026.Principal stress‐evolution diagram at different advance positions of 42205 working face. ABSTRACT To address the challenge of controlling severe asymmetrical deformation in roadways subjected to repeated mining, this study (i.e., based on the engineering context of the Buertai Coal Mine) investigated the characteristics of the regional stress field in ...
Ai‐Rong Wang +3 more
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International Journal of Tourism Research, Volume 28, Issue 2, March/April 2026.ABSTRACT Despite extensive literature on the demand for recreational sports tourism, more research is needed on stakeholders' shared responsibilities for environmental conservation. To address this gap, this study proposed an extended conceptualization of shared responsibility, examining stakeholders' perceptions, expectations and interactions in ...
Casey Wai Ki Ho, Vincent Wing Sun Tung
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