Height of water-conducting fractured zone in a coal seam overlain by thin bedrock and thick clay layer: a case study from the Sanyuan coal mine in North China
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DOI: 10.1007/s12665-020-8873-0
Abstract: The accurate determination of the height of the water-conducting fractured zone (HWCFZ) in a coal seam covered by thin bedrock and thick clay layer is crucial for aquifer protection, mine safety, and eco-environmental conservation. Using… read more here.
Keywords: coal; layer; clay layer; water conducting ... See more keywords
Control of the Internal and External Staggered Distance of Coal Mining Face to the Water-Conducting Fissures in the Overlying Strata of the Near Coal
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DOI: 10.1155/2021/1499675
Abstract: In Northwest China, rainfall is low, water resources are scarce, and the ecological environment is fragile. For shallow-buried and close-spaced coal seams with a thickness of upper coal bed >60∼70 m, the water-conducting fissures of the… read more here.
Keywords: mining; water; internal external; coal ... See more keywords
Multiple Influence Factor Sensitivity Analysis and Height Prediction of Water-Conducting Fracture Zone
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DOI: 10.1155/2021/8825906
Abstract: To explore the influence law and sensitivity of various factors on the height of the water-conducting fracture zone, and further predict the development height of the water-conducting fracture zone, taking the field survey and collected… read more here.
Keywords: sensitivity; conducting fracture; fracture zone; water conducting ... See more keywords
Prediction of the Heights of the Water-Conducting Fracture Zone in the Overlying Strata of Shortwall Block Mining Beneath Aquifers in Western China
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DOI: 10.3390/su10051636
Abstract: Longwall mining leaves pillars and irregular blocks of coal behind in its aftermath. In this study, a shortwall block mining (SBM) technique for recovering these coal resources has been proposed. A mechanical analysis model for… read more here.
Keywords: mining; fracture zone; conducting fracture; model ... See more keywords
Study on Height Development Characteristics of Water-Conducting Fracture Zone in Fully Mechanized Mining of Shallow Thick Coal Seam under Water
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DOI: 10.3390/su15097370
Abstract: The height of water-conducting fracture zone (HWCFZ) is one of the important technical parameters for water-preserved coal mining. The purpose of this paper is to acquire information about the height development characteristics of water-conducting fracture… read more here.
Keywords: development; water; conducting fracture; water conducting ... See more keywords
Prediction and Application of the Height of Water-Conducting Fracture Zone in the Composite Roof: A Case Study of Jinxinda Coal Mine
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DOI: 10.3390/su15119003
Abstract: The water inrush from the roof of the coal mine is closely related to the movement failure of overburdened rock and the height of the water-conducting fracture zone. In this work, based on the research… read more here.
Keywords: water; roof; coal; height water ... See more keywords