Results 121 to 130 of about 370,321 (357)

Research and application of pressure relief technology for fracturing thick hard roof in super-high mining face

open access: yesMeitan xuebao
Aiming at the problems of super-large mining space, strong ore pressure and ultra-high coal wall stability control faced by full-mechanized mining face with ultra-large mining height and thick hard roof, this paper takes the 122104 working face of ...
Yajun LEI   +11 more
doaj   +1 more source

Review and prospects of shear test of bolted rock joints

open access: yesDeep Underground Science and Engineering, EarlyView.
The laboratory shear test equipment, test method, and numerical simulation of bolted rock joints were summarized. The shortcomings and limitations of the current research were analyzed, and the research prospects were proposed. Abstract Rock bolting is a critical approach in geotechnical engineering for supporting weak rocks.
Shulin Ren   +4 more
wiley   +1 more source

THE IMPACT OF COAL WASTE HEAPS ON THE ENVIRONMENT OF SOKAL DISTRICT OF LVIV REGION [PDF]

open access: yes, 2018
The environmental situation in Sokal district is one of the most complicated in Lviv region, which is caused by man-made environmental impact of mining, coal preparation and chemical industries.
Popovych, Vasyl, Voloshchyshyn, Andriy
core  

Research and application practice of digital intelligent technology and complete set of equipment for efficient coalmining

open access: yesMeitan xuebao
Summarizing the current development status of intelligent and digital technologies in the coal industry, analyzing the new situations and requirements for research and application of intelligent technologies and complete sets of equipment for efficient ...
Guofa WANG   +6 more
doaj   +1 more source

A review on rockburst prediction and prevention to shape an ontology‐based framework for better decision‐making for underground excavations

open access: yesDeep Underground Science and Engineering, EarlyView.
A scientometric analysis of 2449 journal articles and a comprehensive review of 336 papers were conducted, discussing and identifying challenges and research gaps in rockburst prediction and prevention and proposing an ontology‐based framework for better decision‐making in underground excavations. Abstract With underground engineering projects becoming
Hongchuan Yan   +6 more
wiley   +1 more source

Influence of Superabsorbent Polymers on Fly Ash-Slag Paste Filling Materials for Use in Coal Mining

open access: green, 2022
Chenyang Ma   +6 more
openalex   +1 more source

Sikap Masyarakat Desa Hutan terhadap Perubahan dan Alih Guna Kawasan Hutan Menjadi Kawasan Pertambangan Batubara [PDF]

open access: yes, 2016
Change and use change forest into coal mining area has led to changes in the biophysical environment and social environment forest villagers. This study aimed to analyze the attitudes towards changes in environmental conditions biophysical and social ...
Hafizianor, H. (Hafizianor)
core   +1 more source

Mechanical behavior and failure mechanisms of rock bolts subjected to static-dynamic loads

open access: yesInternational Journal of Mining Science and Technology
This study explores the effects of dynamic and static loading on rock bolt performance a key factor in maintaining the structural safety of coal mine roadways susceptible to coal bursts.
Hongpu Kang   +6 more
doaj   +1 more source

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