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pro vyhledávání: '"variable-diameter drilling"'
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Publikováno v:
Applied Sciences, Vol 14, Iss 15, p 6443 (2024)
Theoretical analysis and numerical simulation are used to study the influence of different parameters of variable diameter borehole pressure relief technology on the surrounding rock and support. A strain-softening model was established to analyze th
Externí odkaz:
https://doaj.org/article/7a310a2e299f42b98d999638ac22e17b
Autor:
Li, Yangyang1,2 (AUTHOR), Guo, Rongwei1,2 (AUTHOR), Zhang, Shichuan1,2 (AUTHOR), Chen, Bing1,2 (AUTHOR) cdbakdw@163.com, Yan, Haodong1,2 (AUTHOR), Meng, Wenhang1,2 (AUTHOR), Zheng, Dan1,2 (AUTHOR)
Publikováno v:
Energies (19961073). Sep2022, Vol. 15 Issue 18, p6596-6596. 14p.
Publikováno v:
Energies, Vol 15, Iss 18, p 6596 (2022)
Conventional borehole pressure relief can meet the requirements for preventing rock bursts, but it can also easily destroy the roadway, resulting in system support failure. Taking coal-like samples with boreholes as the research object, the pressure
Externí odkaz:
https://doaj.org/article/5384fde06eb1459fbd069b9c14bab547
Autor:
Tai, Lianhai1,2 (AUTHOR), Li, Chong1,2 (AUTHOR) lichongky@163.com, Gu, Shitan3 (AUTHOR) tsgst@163.com, Yu, Xiaoxiao1,2 (AUTHOR), Xu, Zhijun1,2 (AUTHOR), Sun, Lei1,2 (AUTHOR)
Publikováno v:
Scientific Reports. 10/31/2023, Vol. 13 Issue 1, p1-20. 20p.
Publikováno v:
Applied Sciences (2076-3417); Oct2024, Vol. 14 Issue 20, p9428, 21p
Autor:
Yongqian LIU, Zhonggang HUO, Hongyan LI, Longyong SHU, Zhongxue SUN, Dong WANG, Xue LIU, Xingwang SHI
Publikováno v:
Meitan xuebao, Vol 49, Iss S1, Pp 327-339 (2024)
A physical mechanics simulation experiment is one of the important technical methods to study the inoculation mechanism and development laws of coal and gas outburst. A new type of coal and gas outburst simulation system has been developed, aiming at
Externí odkaz:
https://doaj.org/article/90e147741df24b0481ef58eb4422db16
Publikováno v:
Journal of Engineering Science & Technology Review. 2021, Vol. 14 Issue 5, p8-18. 11p.
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-20 (2023)
Abstract To study the effect of mining dynamic response characteristics on the footwall working face of the normal fault under the influence of the gob area, theoretical research, indoor experiment, and numerical simulation are adopted to analyze the
Externí odkaz:
https://doaj.org/article/224ebfd29bdf4fed9f6702f58066e3f9
Publikováno v:
Processes; Dec2023, Vol. 11 Issue 12, p3277, 23p