Research on tunnel ventilation systems: dust diffusion and pollution behaviour by air curtains based on CFD technology and field measurement

Q Liu, W Nie, Y Hua, H Peng, C Liu, C Wei - Building and Environment, 2019‏ - Elsevier
In order to further improve an air curtain's dust suppression performance in tunnels, this
paper made an in-depth analysis of the effects of an air curtain generator's radial and axial …

Effectiveness of alkali-activated slag as alternative binder on workability and early age compressive strength of cemented paste backfills

H Jiang, Z Qi, E Yilmaz, J Han, J Qiu, C Dong - Construction and Building …, 2019‏ - Elsevier
A full understanding of the workability and unconfined compressive strength (UCS) of
cemented paste backfill (CPB), made of alkali-activated slag (AAS) as an alternative binder …

Experimental investigation on the relationship between pore characteristics and unconfined compressive strength of cemented paste backfill

L Liu, Z Fang, C Qi, B Zhang, L Guo… - Construction and Building …, 2018‏ - Elsevier
In this paper, the pore structure characteristics of CPB specimens were characterized using
nuclear magnetic resonance (NMR) and scanning electronic microscopy (SEM) techniques …

Effects of spraying pressure and installation angle of nozzles on atomization characteristics of external spraying system at a fully-mechanized mining face

S Yang, W Nie, S Lv, Z Liu, H Peng, X Ma, P Cai… - Powder Technology, 2019‏ - Elsevier
Aiming to effectively suppress excessively high dust concentration around the drums during
coal cutting and the related dust particle dispersion issues at a fully-mechanized mining …

[HTML][HTML] Effects of water content, water type and temperature on the rheological behaviour of slag-cement and fly ash-cement paste backfill

Y Zhao, A Taheri, M Karakus, Z Chen… - International Journal of …, 2020‏ - Elsevier
The pum** ability and placement performance of fresh cemented paste backfill (CPB) in
underground mined cavities depend on its rheological properties. Hence, it is crucial to …

Experimental investigation of mechanical, hydration, microstructure and electrical properties of cemented paste backfill

L Liu, J **n, C Qi, H Jia, KIIL Song - Construction and Building Materials, 2020‏ - Elsevier
Filling mine goafs with cemented paste backfill (CPB) is an effective approach to protect the
ecological environment and alleviate major safety hazards in practice. In this study, using full …

Numerical study on the pipe flow characteristics of the cemented paste backfill slurry considering hydration effects

L Liu, Z Fang, C Qi, B Zhang, L Guo, KIIL Song - Powder technology, 2019‏ - Elsevier
Cemented paste backfill (CPB) plays a vital role in tailings management where the CPB
slurry is hydraulically conveyed from the surface to underground voids in pipelines. To …

Research status and perspectives of the application of artificial intelligence in mine backfilling

C QI, X YANG, G LI, Q CHEN, Y SUN - Journal of China Coal Society, 2021‏ - mtxb.com.cn
With the depletion of near surface resources in China, deep resource exploitation is the
inevitable destiny of the mining industry. Among all mining methods, backfill mining is one of …

[HTML][HTML] Rheological properties of cemented paste backfill and the construction of a prediction model

Y Niu, H Cheng, S Wu, J Sun, J Wang - Case Studies in Construction …, 2022‏ - Elsevier
Abstract The Cemented Paste Backfill (CPB) yield stress is a key rheological parameter for
paste filling technology, which has significant practical value for pipeline optimization and …

Experimental investigation of solid-liquid two-phase flow in cemented rock-tailings backfill using Electrical Resistance Tomography

L Liu, ZY Fang, YP Wu, XP Lai, P Wang… - Construction and Building …, 2018‏ - Elsevier
The cemented rock-tailings backfill (CRB) technique is a rapidly advancing technique for the
mine backfill process. However, the inclusion of waste rocks in backfill materials increase …