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Articles (20)

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1-10 of 20 results for hard roof

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Select article: Mechanism of roof presplitting in nonpillar coal mining technology and its reasonable parameters in hard roof and longwall top-coal caving face

Open access

Research article

First published 2023-3

Mechanism of roof presplitting in nonpillar coal mining technology and its reasonable parameters in hard roof and longwall top-coal caving face

Haosen Wang, Jiong Wang, Manchao He [...]

Energy Exploration & Exploitation

Select article: A case study of the periodic fracture control of a thick-hard roof based on deep-hole pre-splitting blasting

Open access

Research article

First published 2022-1

A case study of the periodic fracture control of a thick-hard roof based on deep-hole pre-splitting blasting

Baobao Chen, Changyou Liu, Bing Wang

Energy Exploration & Exploitation

Select article: Determination of fracture location of double-sided directional fracturing pressure relief for hard roof of large upper goaf-side coal pillars

Open access

Research article

First published 2020-1

Determination of fracture location of double-sided directional fracturing pressure relief for hard roof of large upper goaf-side coal pillars

Jiangwei Liu, Changyou Liu, Xuehua Li

Energy Exploration & Exploitation

Select article: Numerical study on the dynamic pressure control for self-forming roadways using CHRCT in thin coal seams with thick and hard roofs

Open access

Research article

First published 2024-11

Numerical study on the dynamic pressure control for self-forming roadways using CHRCT in thin coal seams with thick and hard roofs

Bosheng Hu, Yongping Wu, Yang Yu [...]

Energy Exploration & Exploitation

Select article: Experimental investigation on effect of loading rate on fracture behavior of coal-seam roof rock

Open access

Research article

First published 2023-9

Experimental investigation on effect of loading rate on fracture behavior of coal-seam roof rock

Lichao Chen, Shuaifeng Lyu, Zhang Guo [...]

Energy Exploration & Exploitation

Select article: Comprehensive technical support for safe mining in ultra-close coal seams: A case study

Open access

Research article

First published 2021-7

Comprehensive technical support for safe mining in ultra-close coal seams: A case study

Wei Zhang, Jiawei Guo, Kaidi Xie [...]

Energy Exploration & Exploitation

Select article: Mutation effect of acoustic and electromagnetic emissions of hard rock impact failure

Open access

Research article

First published 2019-1

Mutation effect of acoustic and electromagnetic emissions of hard rock impact failure

Yang Liu, Cai-Ping Lu, Heng Zhang

International Journal of Distributed Sensor Networks

Select article: Study on roof breaking mechanism and support stability of steeply dipping seam and large mining height

Open access

Research article

First published 2024-3

Study on roof breaking mechanism and support stability of steeply dipping seam and large mining height

Bosheng Hu, Panshi Xie, Baofa Huang [...]

Energy Exploration & Exploitation

Select article: Influence of strata characteristics on face support requirement for roof control in longwall workings – a case study

Retricted access

Research article

First published 2012-1

Influence of strata characteristics on face support requirement for roof control in longwall workings – a case study

G S P Singh, U K Singh

Mining Technology: Transactions of the Institutions of Mining and Metallurgy

Select article: Study on stability of filling wall under lateral large-span composite hinge fracture of hard critical block

Open access

Research article

First published 2021-4

Study on stability of filling wall under lateral large-span composite hinge fracture of hard critical block

Chenghai Li, Yajie Liu, Jianbiao Bai [...]

Science Progress

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