Results 21 to 30 of about 689,431 (233)

Dynamic Pressure Manifestation Mechanism and Control Techniques for Roadways with Large Mining Heights and Intense Mining: A Case Study

open access: yesGeofluids, 2023
Responding to severe surrounding rock deformation failures and other problems in roadways in western China with large mining heights and intense mining, the work presented in this paper studied the mechanism of surrounding rock deformation failures in ...
Dong Xu, Mingshi Gao, Xin Yu
doaj   +1 more source

Study on surrounding rock failure mechanism and rational coal pillar width of the gob‐side coal roadway under influence of intense dynamic pressure

open access: yesEnergy Science & Engineering, 2023
A reasonable width of the coal pillar is very important to the surrounding rock control of the gob‐side roadway. An unreasonable width of the coal pillar will make the roadway to be located within the range of strong mining influence, leading to severe ...
Deqiu Wang   +8 more
doaj   +1 more source

Ontology of core data mining entities [PDF]

open access: yes, 2014
In this article, we present OntoDM-core, an ontology of core data mining entities. OntoDM-core defines themost essential datamining entities in a three-layered ontological structure comprising of a specification, an implementation and an application ...
Dzeroski, S, Soldatova, L, Panov, P
core   +1 more source

Field measurement of the influence of coal face mining on adjacent main roadway deformatio

open access: yesGong-kuang zidonghua, 2019
At present, theory analysis and simulation analysis of surrounding rock control and deformation of main roadway often simplify some special conditions in the field, such as fault structure, which leads to large differences between simulation results and ...
ZHANG Shaohua
doaj   +1 more source

Effect mechanism of strata breakage evolution on stope deformation in extra-thick coal seams

open access: yesAlexandria Engineering Journal, 2022
The mining of extra-thick coal seams features severe deformation of the stoping roadway and section coal pillars due to the large mining thickness of the coal seams and the intense movement of the overlying strata.
Cunli Zhu   +5 more
doaj   +1 more source

Mechanism and Control of Asymmetric Floor Heave in the Gob-Side Coal Roadway under Mining Pressure in Extra-Thick Coal Seams

open access: yesEnergies, 2023
Due to their tense mining succession relationship, gob-side roadways may undergo significant deformation under multi-mining pressure. In this article, many methods, such as on-site research, a theoretical analysis, a numerical simulation and an ...
Deqiu Wang   +11 more
doaj   +1 more source

The Stability of Roadway Groups under Rheology Coupling Mining Disturbance

open access: yes, 2021
The deep roadway groups play an important role in transportation and ventilation in coal mine production. Therefore, it is very important to comprehensively analyze the coupling effect of rheological deformation and coal mining on the stability of the ...
Ruiguang Feng   +5 more
core   +1 more source

Zoning Control Technology of Gob-Side Roadway Driving with Small Coal Pillar Facing Mining in a Special Isolated Island Working Face: A Case Study

open access: yesApplied Sciences, 2021
The gob-side roadway in an isolated island working face is a typical representative of a strong mining roadway, which seriously restricts the efficient and safe production of underground coal mines.
Changliang Han   +4 more
doaj   +1 more source

Mining and Analysis of Traffic Safety and Roadway Condition Data [PDF]

open access: yes, 2017
Decision makers working to improve transportation systems must constantly balance the need to improve roadway safety through infrastructure investment with constraints of available resources.
Graves, Sara J.   +5 more
core   +1 more source

Deformation Characteristics and Grouting Control Technology of Reused Roadway in a Fully Mechanized Coalface with Large Mining Height

open access: yesApplied Sciences, 2023
Reused roadways are increasingly adopted in fully mechanized coalfaces with large mining heights because of the ventilation and gas drainage problems. However, the forced mechanism and grouting control technology of the reused roadway was seldom studied.
Leilei Zhao   +5 more
doaj   +1 more source

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