Methane extraction from drainage boreholes that drilled on surface in PJSC “Mine Management Pokrovskoe”

Ilyashov, M; Agafonov, Anton; Dedich, I

doi:10.15407/mining07.01.041

Min.miner.depos.

2013

DOI: 10.15407/mining07.01.041

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Methane extraction from drainage boreholes that drilled on surface in PJSC “Mine Management Pokrovskoe”

M Ilyashov¹,

Anton Agafonov²,

I Dedich³

Abstract: Приведены данные о продолжительности работы и дебите дегазационных скважин, пробуренных с поверхности. Показано влияние на метанодобываемость суммарной мощности угольных пластов-спутников и свойств зон выработанного пространства, в которых расположена газоприемная часть скважины.

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Patterns of Conveyor Excavation Deformation in Mining and Geological Conditions of the Krasnolymanska Coal Mine

Shashenko¹,

Cherednyk²

2020

JDMI

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Purpose. carrying out field researches of the conveyor excavation`s state and establishing geomechanical patterns based on the data, that were obtained in the mining and geological conditions of the Krasnolymanska coal mine. Methodology. Mine field researches of the conveyor excavation deformed state, which is under the influence of the longwall face, and moves in time and space, were carried out. The observation was performed by using a measuring station, which included five measuring points. The results of measurements were generalized and the excavation contour deformation features at various stages of mining coal seam were revealed. Results. Dependencies, that characterize the process of coal mass deformation around the mine at various stages of its exploitation. are obtained. During exploitation processes of the conveyor excavation relative to the longwall face, that gradually pass through four geomechanical situations in mining and geological conditions of the Krasnolymanska coal mine, are established – outside influence zone, in the influence zone, within the longwall face, outside the longwall face. These situations differ in the nature of roof and floor deformation, the vertical convergence of which at each stage changes linearly in time and goes to zero at a distance of 23 meters outside the longwall face. These indicators give reason to consider the roof rocks in the longwall as that sink without breaking the continuity, and also to perform the calibration of geomechanical models based on this. Scientific novelty of the research is new patterns establishment of the coal mass deformation, which contain the conveyor excavation, in the process of the coal seam mining in specific mining and geological conditions. Practical value of the research planned to be carried out on the basis of data obtained after field research is allowed to develop a geomechanical model of active methane accumulation zones searching. The model is applied for further industrial use purposes and to improve the safety of coal mining.

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Patterns of Conveyor Excavation Deformation in Mining and Geological Conditions of the Krasnolymanska Coal Mine

Shashenko¹,

Cherednyk²

2020

JDMI

View full text Add to dashboard Cite

show abstract

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Methane extraction from drainage boreholes that drilled on surface in PJSC “Mine Management Pokrovskoe”

Cited by 1 publication

References 0 publications

Patterns of Conveyor Excavation Deformation in Mining and Geological Conditions of the Krasnolymanska Coal Mine

Patterns of Conveyor Excavation Deformation in Mining and Geological Conditions of the Krasnolymanska Coal Mine

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