Zobrazeno 1 - 10
of 107
pro vyhledávání: '"Haifei LIN"'
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 5, Pp 102-113 (2024)
Aiming at the problem of changing the distribution of overburden fissures in the overhead mining area due to the cutting and retaining roadway process, the stress distribution, overburden transport and mining fissure distribution law in the mining zo
Externí odkaz:
https://doaj.org/article/3aa20dfd15a942d4af399ac601af361b
Publikováno v:
Meitan xuebao, Vol 49, Iss 3, Pp 1403-1413 (2024)
In order to further clarify the influence of multistage pulse ultrasound on the characteristics of gas desorption in water-bearing coal, the ultrasonic stimulation test system of gas-containing coal is used to analyze the pore structure and gas desor
Externí odkaz:
https://doaj.org/article/02377b72583b4099a752037310f63029
Publikováno v:
Meikuang Anquan, Vol 55, Iss 3, Pp 25-35 (2024)
In order to study the evolution law of gas transportation and storage area under different advancing speed of fully-mechanized working face, based on the overview of coal mine project, we analyzed the effect of overburden mining advancing speed by us
Externí odkaz:
https://doaj.org/article/1a9db36b40be4562ae9832fafbee5920
Publikováno v:
Meitan xuebao, Vol 49, Iss 1, Pp 513-527 (2024)
As an important negative carbon technology to solve the carbon emission problem in the coal industry, the CO2 sequestration in the mine goaf has a wide application prospect in the secondary utilization of waste resources in the goaf and the capture a
Externí odkaz:
https://doaj.org/article/1ceca13ac0f94718924547944317b76e
Autor:
Pengxiang ZHAO, Risheng ZHUO, Shugang LI, Haifei LIN, Zechen CHANG, Yongyong JIA, Quan JIN, Yuanjia LIU
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 2, Pp 135-149 (2024)
Many factors combine to influence the spatial distribution characteristics of overburden fracture during the increasingly intense mining process in coal mines. The characteristics of overburden fracture distribution has important significance in guid
Externí odkaz:
https://doaj.org/article/d150317f191645f2b1b365c8009a91f5
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 1, Pp 138-153 (2024)
The construction of China’s ecological civilization has entered a critical period in which carbon reduction is the key strategic direction since the “dual carbon” goal was proposed. Coal’s status as the least expensive energy source will be u
Externí odkaz:
https://doaj.org/article/e12b3b762462455188def72a69e15793
Autor:
Pengxiang ZHAO, Yulong WANG, Shugang LI, Haifei LIN, Shikui JIN, Risheng ZHUO, Haiqing SHUANG
Publikováno v:
Meitan kexue jishu, Vol 51, Iss S2, Pp 71-83 (2023)
In order to study the division method and fractal characteristics of the overburden gas slow permeability zone in up-dip fully mechanized face of inclined thick coal seam, based on the fractal theory and grey theory, the plane physical similarity sim
Externí odkaz:
https://doaj.org/article/fc46b6be768746609af76480f05782ec
Publikováno v:
International Journal of Coal Science & Technology, Vol 10, Iss 1, Pp 1-13 (2023)
Abstract To rationalize the setting of joint parameters, model size, and initial value of vertical stress in simulation of mining of steeply inclined coal seams, a fault tree analysis method of discrete element numerical simulation was used and a mat
Externí odkaz:
https://doaj.org/article/07d43867fbc144d3859a8eae51e54b70
Publikováno v:
Meitan kexue jishu, Vol 51, Iss 10, Pp 119-128 (2023)
To study the energy dynamic change law of moisture-contained coal in the process of liquid nitrogen freezing, a self-developed acoustic emission (AE) experimental system for the whole process of liquid nitrogen frozen coal was utilized to analyze the
Externí odkaz:
https://doaj.org/article/018d2244b91e4234a72e5e14fd90c460
Experimental study on the influence of surfactant foam properties on the slow release of gas in coal
Publikováno v:
Meitan kexue jishu, Vol 51, Iss 10, Pp 129-139 (2023)
In the process of mining coal resources, the abnormal emission of gas associated with coal may lead to serious gas overrun, and trigger problems such as gas disaster or greenhouse effect. Many studies have shown that injecting surfactant solutions in
Externí odkaz:
https://doaj.org/article/7dfbb4068d6342729167ce5f56d26716