Results 21 to 30 of about 8,725 (226)

Strata behavior at fully-mechanized coal mining and solid backfilling face [PDF]

open access: yesSpringerPlus, 2016
Taking Ping Dingshan Coal Mine Group 12 as an example, this paper explains the system layout, key equipment and backfilling technology in detail. It probes into the characteristic of rock strata movement behavior and surface deformation above the gob area through in-site measurement method. The results show that as the overburden strata are effectively
Yin, Wei   +3 more
openaire   +2 more sources

Failure characteristic and fracture evolution law of overburden of thick coal in fully mechanized sub-level caving mining [PDF]

open access: yes, 2017
In mining process, the height of water flowing fractured zone is important significance to prevent mine of water and gas, in order to further research the failure characteristic of the overlying strata.
Fan, Cunhui, Qin, Qirong, Wang, Xiaolei
core   +1 more source

Improving the process of coal extraction based on the parameter optimization of mining equipment [PDF]

open access: yes, 2018
The aim of this paper is to develop and validate methods of choosing the means of the mining face mechanization. This paper analyses existing methods of optimizing processes in mining.
Hrinov, Volodymyr, Khorolskyi, Andrii
core   +1 more source

Numerical methods of geomechanics tasks solution during coal deposits’ development [PDF]

open access: yes, 2016
Purpose. Generalization of numerical modeling of geomechanical processes in the vicinity of mine workings by finite elements method and making recommendations for substantiation of suitable construction and behavior of rock massif physical model ...
Bondarenko, V   +4 more
core   +2 more sources

Analysis of operation parameters of partial backfilling in the context of selective coal mining [PDF]

open access: yes, 2019
Purpose is to determine factors of effect of mechanical parameters and geometry of packs, constructed using the undercut rocks in the process of selective coal mining, on the state of geomechanical system within a mine working-stope junction during a ...
Dereviahina, N, Malanchuk, L, Sotskov, V
core   +1 more source

Sudden change mechanism of mine pressure in fully mechanized caving face and its countermeasures

open access: yesMeikuang Anquan, 2022
In view of the sudden change of mine pressure in 226 upper 02 fully mechanized caving face of Huangyuchuan Coal Mine, the mechanism and countermeasures of sudden change of mine pressure in fully mechanized caving face are studied by using the methods of
LI Yong, WANG Zhuoying
doaj   +1 more source

Research on Dust Source Traceability Based on Dust Migration Law in Working Area of Large Mining Height Fully-mechanized Face [PDF]

open access: yesE3S Web of Conferences, 2022
The dust control basis of fully mechanized mining face is clear dust source characteristics. In view of the problem of unclear dust source and unknown distribution characteristics in the working area of 7.8 m large fully mechanized mining face, the fully
Li Zhi, Ma Wei
doaj   +1 more source

Design and Application of Automatic Control System for Fully Mechanized Mining Face in Coal Mine

open access: yesAdvances in Multimedia, 2022
In order to improve the automatic control effect of fully mechanized mining face in coal mine, this paper combines the literature research method to analyze the disadvantages of traditional research and combines the demand analysis to analyze the structure of the automatic control system of fully mechanized mining face in coal mine.
Zhi Yuan, Huanlei Chi, Yan Cao
openaire   +2 more sources

Research on application of fast roaming and Mesh network technology of WiFi communication on fully mechanized coal mining face

open access: yesGong-kuang zidonghua, 2019
At present, there are problems about few application research of WiFi communication in the specific environment of fully mechanized coal mining face, propagation characteristics of WiFi signal on the fully mechanized coal mining face were analyzed ...
GAO Siwei, LI Se
doaj   +1 more source

Analysis of the factors influencing the level of professional health and the biological age of miners during underground mining of coal seams [PDF]

open access: yes, 2018
Purpose. Setting of the work environment of workers at mining enterprises during thin coal seams extraction influence on the character and the rate of their aging by determination of the biological age and estimation of the occupational diseases ...
Cheberiachko, S   +3 more
core   +1 more source

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