Articles with "backfill" as a keyword



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Cemented Paste Backfill 1-D Consolidation Results Interpreted in the Context of Ground Reaction Curves

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Published in 2020 at "Rock Mechanics and Rock Engineering"

DOI: 10.1007/s00603-020-02173-5

Abstract: Deep and high-stress mining relies on backfilling the minedout voids to support the surrounding host rock and mitigate rockburst risk. Rational engineering design requires quantifying stress transfer from the host rock to the backfill as… read more here.

Keywords: consolidation; backfill; cemented paste; stress ... See more keywords
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Effect of Fly Ash on the Mechanical Properties of Cemented Backfill Made with Brine

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Published in 2018 at "Geotechnical and Geological Engineering"

DOI: 10.1007/s10706-018-0640-6

Abstract: Sanshandao Xinli Gold Mine in Shandong Province is the first Chinese subsea gold mine. The mine uses cement backfill in the open stopes. The existence of a high concentration of Cl− in the water use… read more here.

Keywords: backfill; cement backfill; fly ash; cemented backfill ... See more keywords
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Structure optimal design research on backfill hydraulic support

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Published in 2017 at "Journal of Central South University"

DOI: 10.1007/s11771-017-3569-7

Abstract: Backfill hydraulic support is the key equipment in achieving coal mining and solid backfilling simultaneously in solid backfill mining technology. Based on the summary and analysis of main types, basic structural properties and filed application… read more here.

Keywords: backfill hydraulic; backfill; hydraulic support; optimal design ... See more keywords
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Experimental study on excavating strip coal pillars using caving zone backfill technology

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Published in 2018 at "Arabian Journal of Geosciences"

DOI: 10.1007/s12517-018-3914-7

Abstract: Strip mining was the major method to control surface subsidence when mining under buildings in China; however, its coal recovery ratio was only 30 to 50%, resulting in a large amount of coal resource waste… read more here.

Keywords: backfill; strip coal; excavating strip; coal pillars ... See more keywords
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Shallow foundations on lightweight TDA backfill: Field tests and 3D numerical modelling

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Published in 2020 at "Computers and Geotechnics"

DOI: 10.1016/j.compgeo.2020.103761

Abstract: Abstract Recent advances in tire recycling technologies coupled with increasing global environmental awareness have resulted in several new products derived from scrap tires, including tire-derived aggregate (TDA). TDA is an inexpensive engineered lightweight backfill material… read more here.

Keywords: backfill; field tests; tda layer; shallow foundations ... See more keywords
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Mesoscale partitioned modelling of masonry bridges allowing for arch-backfill interaction

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Published in 2018 at "Construction and Building Materials"

DOI: 10.1016/j.conbuildmat.2018.03.272

Abstract: Abstract Masonry arch bridges exhibit a complex three-dimensional behaviour which is determined by the interaction between different structural and non-structural components, including the arch barrel, the backfill and the lateral walls. This paper presents an… read more here.

Keywords: arch; backfill; bridge; masonry ... See more keywords
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Investigation of spatial stratified heterogeneity of cemented paste backfill characteristics in construction demolition waste recycled aggregates

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Published in 2020 at "Journal of Cleaner Production"

DOI: 10.1016/j.jclepro.2019.119332

Abstract: Abstract This paper discusses the application of construction demolition waste (CDW) in the field of backfill mining as an efficient way of increasing the CDW utilization rate. But much of the research on cemented paste… read more here.

Keywords: demolition waste; backfill; cemented paste; recycled aggregates ... See more keywords
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Utilization of phosphogypsum and phosphate tailings for cemented paste backfill.

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Published in 2017 at "Journal of environmental management"

DOI: 10.1016/j.jenvman.2017.06.027

Abstract: This research is an investigation of the feasibility of utilizing phosphogypsum (PG) and phosphate tailings (PTS) for cemented paste backfill. Some experiments were conducted with various combinations of PTS and PG as aggregates, along with… read more here.

Keywords: phosphate tailings; backfill; phosphogypsum phosphate; cemented paste ... See more keywords
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Lithium slag and fly ash-based binder for cemented fine tailings backfill.

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Published in 2019 at "Journal of environmental management"

DOI: 10.1016/j.jenvman.2019.109282

Abstract: This research work was an exploration of the feasibility of utilizing a lithium slag (LS) and fly ash (FA)-based binder for cemented fine tailings backfill (CFTB). Extensive experiments were conducted with different combinations of LS… read more here.

Keywords: strength; backfill; binder; lithium slag ... See more keywords
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Towards Intelligent Mining for Backfill: A genetic programming-based method for strength forecasting of cemented paste backfill

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Published in 2019 at "Minerals Engineering"

DOI: 10.1016/j.mineng.2019.01.004

Abstract: Abstract As cemented paste backfill (CPB) plays an increasingly important role in minerals engineering, forecasting its mechanical properties becomes a necessity for efficient CPB design. Machine learning (ML) techniques have previously demonstrated remarkable successes in… read more here.

Keywords: cemented paste; paste backfill; based method; backfill ... See more keywords
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Strength reduction for upheaval buckling of buried pipes in blocky clay backfill

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Published in 2017 at "Ocean Engineering"

DOI: 10.1016/j.oceaneng.2016.12.006

Abstract: Abstract Offshore pipelines are often buried to protect the pipeline from external loads and upheaval buckling. Models for pipe uplift resistance in clay soils are based predominantly on homogenous backfill conditions. In practice, however, there… read more here.

Keywords: backfill; clay backfill; strength reduction; upheaval buckling ... See more keywords