Zobrazeno 1 - 10
of 141
pro vyhledávání: '"Stowing"'
Autor:
Kummari Sekhar, Bendadi Hanumantha Rao
Publikováno v:
Discover Geoscience, Vol 2, Iss 1, Pp 1-15 (2024)
Abstract Due to the paucity of river sand and increased regulations on sand mining, mine fill voids are kept emptied, fostering the demand for alternate backfilling material. This study attempts to develop fly ash based sand (FAB Sand) using abundant
Externí odkaz:
https://doaj.org/article/19f345b6883f4de294e6fb58239ae9f9
Publikováno v:
Meikuang Anquan, Vol 55, Iss 5, Pp 160-169 (2024)
To study the effect of various loading rates and aggregate particle size gradations on the mechanical properties and fracture characteristics of cemented waste rock backfill, cemented waste rock backfills with various aggregate particle size gradatio
Externí odkaz:
https://doaj.org/article/51f4adbbe2f24961bc7101fc72f084c3
Publikováno v:
Записки Горного института, Vol 260, Pp 313-320 (2023)
Growing productivity of mining and processing enterprises entails an increase in the volumes of liquid tailings impoundments and upstream impoundments of ore processing waste. Enterprises face the challenge of minimizing the environmental impact of w
Externí odkaz:
https://doaj.org/article/a19ed0b97433473baae45e7112ce762e
Publikováno v:
Записки Горного института, Vol 254, Pp 202-209 (2022)
An analysis of the world experience in the development of potash deposits shows that the main problems arising during their development are a high level of mineral losses, an increased risk of flooding of mine workings as a result of water-proof laye
Externí odkaz:
https://doaj.org/article/159fdb49dcd949bd8d07ef92f6f98122
Publikováno v:
Sensors, Vol 24, Iss 2, p 385 (2024)
Rigid-reflector spaceborne antennas (RRSAs) are well-suited for high-frequency application scenarios due to their high surface accuracy. However, the low stowing efficiency of RRSAs limits the aperture diameters and further deteriorates the electroma
Externí odkaz:
https://doaj.org/article/2f55a7c3680e4b8e8e90dc65b012a297
Autor:
Jaroslav Rybak, Marat M. Khayrutdinov, Dilshad A. Kuziev, Cheynesh B. Kongar-Syuryun, Nikita V. Babyr
Publikováno v:
Записки Горного института, Vol 253, Pp 61-70 (2022)
The technogenic impact of mining on the environment is analyzed and the transition to geotechnology with stowing to reduce the impact of mining operations is proposed. The results of the research work devoted to the justification of parameters of the
Externí odkaz:
https://doaj.org/article/88de859247e447aba595f099c7ad7277
Akademický článek
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Publikováno v:
Metals, Vol 12, Iss 7, p 1105 (2022)
To solve the high slurry pressure and severe wear at some sections in backfilling pipelines, this study investigates the solution of using an auxiliary pipe to increase the resistance and reduce the pressure of the mine backfilling pipeline. Using co
Externí odkaz:
https://doaj.org/article/2f796bb8d479448292589434be7163ee
Akademický článek
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Publikováno v:
矿业科学学报, Vol 2, Iss 5, Pp 475-481 (2017)
The strength of the new filling cementing material which is mixed by fly ash, lime, desulfurization gypsum and a small amount of cement is tested in order to apply to backfill mining in Xinyang coal mine.The optimum ratio of cement, lime, desulfuriza
Externí odkaz:
https://doaj.org/article/777feb33a84546b3a5aabebd329afd72