Results 31 to 40 of about 43,209 (326)
Gong-kuang zidonghua, 2021 The current pressure relief blasting methods are only for the coal seam roof, and there are few researches on the roof-coal-floor synergistic pressure relief blasting management, especially for the rock burst disaster prevention and control in the hard ...
ZHANG Lei
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Meitan kexue jishu, 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 ...
Pengxiang ZHAO +6 more
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Evaluation of innovative sprayed-concrete-lined tunnelling [PDF]
, 2008 The front-shunt tunnel was the first tunnel of the Terminal 5 project at Heathrow to be constructed, and was the first section of sprayed-concrete-lined (SCL) tunnel to be constructed using the method known as LaserShell.
Hilar, M. +3 more
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Advancements and applications: In-situ monitoring technology for overburden movement in mining
Gong-kuang zidonghua, 2023 The in-situ monitoring technology for overburden movement in mining has the features of adapting to complex geological conditions in deep shaft high pressure water and thick coal seam mining, multi layer dynamic monitoring, and high-precision remote real-
ZHU Weibing +5 more
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An empirical relation between overburden pressure and firn density [PDF]
Annals of Glaciology, 1994 Two empirical equations for firn densification have been obtained,considering firn porosity as a function of overburden pressure. In the first equation, thereduction ratio of porosity in firn is assumed to be proportional to the increasing ratioof overburden pressure and the mth power of the porosity.
Takao Kameda Hitoshi Shoji +3 more
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Testing of Laterally Loaded Rigid Piles with Applied Overburden Pressure
, 2012 Small-scale tests have been conducted for the purpose of investigating the quasi-static behaviour of laterally loaded, non-slender piles installed in cohesionless soil. For that purpose, a new and innovative test setup has been developed. The tests have been conducted in a pressure tank such that it was possible to apply an overburden pressure to the ...
Sørensen, Søren Peder Hyldal +2 more
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Applied Mathematics, the Hans van Duijn way [PDF]
, 2012 This is a former PhD student's take on his teacher's scientific philosophy. I describe a set of 'principles' that I believe are conducive to good applied mathematics, and that I have learnt myself from observing Hans van Duijn in action.Comment: 11 ...
Comput Geosci, Mark A. Peletier
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Study on overburden structure and working resistance of supports in deep buried coal seam
Meikuang Anquan, 2023 In view of the characteristics of complex overburden structure and strong mining pressure in deep coal seam working face with large mining height, taking Yangchangwan Coal Mine as the engineering background, the mechanical model of overburden rock ...
LIU Hongtao, HAN Zhou, HAN Zijun, YANG Zhihua, HE Weisheng, WANG Sichen, LUO Zilong
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Structure evolution and rockbursts prevention in multi-face mining in geological anomaly area
Meitan kexue jishu, 2023 Aimed at the phenomenon of variable overburden spatial structures and complex disaster factors in multi-face mining in a geological anomaly area of a mine, taking the actual geological occurrence conditions and mining technology conditions as the ...
ZHANG Junwen +11 more
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Arguments for a "U.S. Kamioka": SNOLab and its Implications for North American Underground Science Planning [PDF]
, 2006 We argue for a cost-effective, long-term North American underground science strategy based on partnership with Canada and initial construction of a modest U.S. Stage I laboratory designed to complement SNOLab.
Aalseth +22 more
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