Backfill financial definition of backfill
backfill Also found in: Dictionary, Acronyms, Encyclopedia . backfill In construction and excavation work,to fill something with additional building foundation walls or retaining walls,one excavates a space large enough to build the walls and provide a comfortable work space,and then backfills with additional rock and dirt afterward.
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Energy Science Engineering: Vol 7, No 5 Wiley Online Library
A novel backfill mining technique was proposed in this paper to control the surface subsidence. Theoretical analysis, numerical, and physical modeling were conducted to study the required parameters. The effectiveness of the technology was successfully tested in a Chinese coal mine.
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Б.Дэлгэрмаа: Залуу үеэ англи хэл сурч, ОУд суралцахад ...
The dramatic unraveling of Batista''s energy,mining, port operation and shipbuilding empire has also become asymbol of Brazil''s own recent economic woes after a decadelongboom that made it one of the world''s hottest emerging economies.
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Sustainability of Coal S U S TA I N A B I L I...
View Sustainability of Coal from BUSINESS MISC at Concordia University. S U S TA I N A B I L I T Y O F C O A L M I N I N G Sustainability of Coal Mining: An InDepth Analysis Presented to. Study Resources. Main Menu; by School; by Literature Title; by Subject; Textbook Solutions Expert Tutors Earn.
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Application of PreSplitting and RoofCutting Control Technology in ...
In Chinese coal mining, highintensity mine pressure in the roadway and working face has been the critical factor that endangers the average coal production [1,2,3,4].In the past 30 years, with the rapid development of computer science and sensor technology, the study of mine pressure in the coal mining process has become more profound and transparent [5,6,7,8].
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SAINS MALAYSIANA Official Portal of Universiti Kebangsaan Malaysia
As coal resources trapped under surface buildings impede the efficient mining of coal seams and constrain the sustainable development of coal mines, a superhighwater backfill mining technique for preventing building damage was adopted. According to the established model of equivalent mining height (EMH), the influence factors were obtained.
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Implementation of paste backfill mining technology in Chinese coal mines.
Implementation of clean mining technology at coal mines is crucial to protect the environment and maintain balance among energy resources, consumption, and ecology. After reviewing present coal clean mining technology, we introduce the technology principles and technological process of paste backfill mining in coal mines and discuss the components and features of backfill materials, the ...
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Failure analyses of unconfined CCWBM body in uniaxial compression based ...
Cemented coal waste backfill material (CCWBM) is made of coal gangue, fly ash and cementitious materials. ... Implementation of paste backfill mining technology in Chinese coal mines. Chang Q, Chen J, Zhou H ... Free to read use. Development overview of paste backfill technology in China''s coal mines: a review. Yang K, Zhao X, Wei Z, Zhang J ...
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Guiding healthcare technology implementation: a new integrated ...
To bridge this gap, an allencompassing model is needed. To understand the key technology implementation factors utilized by leading healthcare facilities, the prevailing technology adoption and implementation science theories and models were reviewed. From this review, an integrated technology implementation model will be set forth.
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Proceedings of the 2012 Coal Operators'' Conference
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احصل على السعرWhatsAppThe carbon uptake and mechanical property of cemented paste backfill ...
In recent decades, mining engineers have examined many pathways to advance the implementation of cleaner production practices, of which paste backfill is one of the representative technologies.
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Ash Library Conference Papers University of Kentucky
The International Ash Utilization Symposia are a series of biennial symposia covering all aspects of coal combustion byproduct utilization. These symposia provide a forum for the transfer of information and new ideas to benefit the innovative utilization, handling, storage and disposal of CCBs. The symposia are organized by the Center for Applied Energy Research at the University of Kentucky.
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Statistical analysis of coal mining safety in China with ... SciELO
The average mining depth of Chinese coal mines was around 700 m in 2010, and the deepest mine is deeper than 1200 m. ... such as ''simultaneous mining technology of coal and gas in lowpermeability seam group'' in 2009. ... and Zhao, 2015a. Environmental implications of mitigating overburden failure and subsidences using pastelike backfill ...
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CUMT What does CUMT stand for? The Free Dictionary
Implementation of paste backfill mining technology in Chinese coal mines This research was funded by the Research Fund of State Key Laboratory of Coal Resources and Safe Mining, CUMT (no. Investigating the Effect of Solid Components on Yield Stress for Cemented Paste Backfill via Uniform Design
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Frontiers | A New Repeated Mining Method With Preexisting Damage Zones ...
Feb 23, 2022Arbitrary mining activities done by previous smallscale mines left many irregular damage zones in the ultrathick coal seam, consequently leading to serious roof caving disasters and recovery ratio decline during repeated mining. Prefilling the damage zones is an effective method to prevent mininginduced geological disasters. In this study, a novel method regarding damage zone filling ...
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Harmonising Rock Engineering and the Environment : Proceedings of the ...
Determination of backfill requirements in 188 (2) multireef mining using numerical modelling Le Bron ... treatment at eastern Chinese coal mines Q. Yu H. Shimada T. Sasaoka K. Matsui ... Stresses and stability of a mine paste fill 593 (2) C. Lain Huerta P. Ramirez Oyanguren R. Lain Huerta F. Carnero C. Santana
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Backfilling is measured in
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Mine Planning and Equipment Selection |
In the paper developed and analyzed three variants of deposit development using cyclicflow technology and is recommended for the implementation the first option, which provides for testing of the northern section with the use of cyclicflow technology (30% of soft overburden) and (70%) of cyclical technology by using a simple roadrail transport.
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