Results 21 to 30 of about 1,733 (262)
Research on automatic coal caving control system
Gong-kuang zidonghua, 2018 Aiming at problem that fully mechanized caving face at the back end of fully mechanized top coal caving face adopted manual caving control method, its automation level differed greatly from that at the front end of fully mechanized top coal caving face ...
CUI Zhifang, NIU Jianfeng
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Energy Exploration & Exploitation, 2022 In view of solving the problems of large top coal loss and low recovery rate in the traditional caving process of horizontal section fully mechanized caving mining, taking the fully mechanized caving face of steeply inclined and extra-thick coal seam in ...
Fengfeng Wu +7 more
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Prediction of the caved rock zones’ scope induced by caving mining method
PLOS ONE, 2018 Critical medium column theory has typically been used to predict the scope of caved rock zone (CRZ) caused by caving mining method. It is essential to understand the distribution laws of lateral pressure induced by caving mining method with different dipping angles.
Fengyu Ren +6 more
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Shock and Vibration, 2023 The broken top coal and gangue in the fully mechanized cave mining will be released from the rear of the hydraulic support in the form of bulk. In this process, the medium properties through the coal opening can be judged by monitoring the vibration ...
Lirong Wan +5 more
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Energies, 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 ...
Liang Li +7 more
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Analysis and Engineering Practice of Factors Affecting Top-Coal Recovery in a Large Dip Coal Seam
Advances in Civil Engineering, 2022 The recovery of top coal in the caving face directly impacts the efficiency of mining coal resources. The geological conditions and mining parameters are well known to be significant influences on the recovery of top coal. This study focused on the 9-301
Xinglong Huang +11 more
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Energies, 2021 China recently implemented a “Green Mine” policy focused on promoting the filling method, aiming to mitigate the environmental impacts of underground mining; nevertheless, quantitative inventories have rarely been provided to support or negate such ...
Yang Liu +5 more
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河南理工大学学报. 自然科学版ObjectivesFully mechanized top-coal caving is a safe and efficient mining method for extra-thick coal seams. However， the complexity of the caving environment， the challenges in coordinating mining and caving， and the numerous factors influencing caving ...
LI Dongyin +7 more
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Frontiers in Energy Research, 2022 In order to improve the accuracy of simulation parameters used in the discrete element simulation test of a fully mechanized top-coal caving process and further explore the intelligent fully mechanized coal caving technology, this research work studies ...
Lijuan Zhao +6 more
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Study on Bottom Damp‐Proof Method of Cave Dwelling [PDF]
Advances in Civil Engineering, 2018 The cave dwelling, as one of the most typical and traditional characteristic local housing styles in the loess area of Northwest China, has been adopted widely in many areas since ancient times. The construction of the cave dwellings supports environmental protection, makes use of innovative construction technology, and preserves historical cultural ...
Rong Wan, De-quan Kong, Li-xin Zhang
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