Results 51 to 60 of about 4,844 (234)
Deep Underground Science and Engineering, EarlyView.An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang +5 more
wiley +1 more source
Combustion characterization of coal-water slurry fuel [PDF]
, 1996 As a result of coal cleaning operations, a substantial amount of coal is disposed as waste into the ponds, effecting and endangering the environment. This study includes a technique to recover and utilize the waste coal fines from the preparation plant ...
Samudrala, S., Masudi, Houshang
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Combined Treatments of Underground Coal Slurry: Laboratory Testing and Field Application
, 2021 During the coal mining process, underground water is generated from the longwall face. In the meantime, the coal cutting process would produce coal particles.
Xinguo Zhang +5 more
core +2 more sources
Deep Underground Science and Engineering, EarlyView.Cement infill shares compressive and shear stresses during loading, while interfacial friction hinders crack propagation and reduces stress concentration, improving the rock's load‐bearing capacity. Failure modes vary with crack inclination. Unfilled specimens show four modes.
Shihao Yuan +4 more
wiley +1 more source
Desalination and Water TreatmentBased on the response surface methodology, the pH change characteristics of coal-water slurry containing potassium permanganate (KMnO4) under the action of hydrogen sulfide (H2S) were studied, and the relationship between the factors of coal seam H2S ...
Qigen Deng +3 more
doaj +1 more source
International Journal of Mining Science and Technology, 2020 The present work aimed to study the effect of slurry conditioning on flocculant-aided filtration of coal tailings by the analysis of filtration kinetics and filter cake structure.
Pengfei Hu +4 more
doaj +1 more source
Carbon emission assessment of tunnel infrastructures: From construction to operation
Deep Underground Science and Engineering, EarlyView.This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long +4 more
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.Based on the 90 datasets, ERT and four optimization algorithms were used to build four hybrid models to predict the UCS of the backfill body. The SMA‐ERT model was the most effective model, and it can reliably guide the design of the backfill ratio parameters. Abstract This study analyzed the feasibility of using titanium (Ti) tailings as a backfilling
Weijun Liu, Zida Liu, Zhixiang Liu
wiley +1 more source
International Journal of Mining Science and Technology, 2017 As coal and gas outburst is one of the most serious mine disasters, it is very important to at least control it if not prevent it from occurring. Injecting cement slurry or grouting into the coal seam can strengthen the seam, increase its rigidity ...
Peiling Zhou +5 more
doaj +1 more source
Biodesulphurisation of coal [PDF]
, 2001 The emission of sulphur oxides during the combustion of coal is one of the causes of an environmental problem known as acid rain. Biodesulphurisation technology applied as a method to remove sulphur before coal combustion was investigated in
Prayuenyong, Pakamas, Prayuenyong, P.
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