01725oam 2200469I 450 991070740500332120160909102230.0(CKB)5470000002465483(OCoLC)885121081(EXLCZ)99547000000246548320140802d1960 ua 0engurn||||||||||txtrdacontentcrdamediacrrdacarrierField description and sampling of coal beds /by James M. SchopfWashington, D.C. :United States Department of the Interior, Geological Survey,1960.Washington, D.C. :Government Printing Office.1 online resource (iv, 25-70 pages, 3 pages of plates) charts, photographsContributions to general geologyGeological Survey bulletin ;1111-BAdditional title page description: "Information required in describing coal beds, with a discussin of sampling methods and applications for coal geology."Title from title screen (viewed July 23, 2014).Includes bibliographical references (pages 66-67) and index.CoalGeologyOhioCoalGeologyWest VirginiaCoalGeologyNorth CarolinaCoalGeologyCoalGeologyCoalGeologySchopf James M(James Morton),1911-1978,857142Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910707405003321Field description and sampling of coal beds3483177UNINA04304oam 22005415 450 991073145760332120231106175805.03-031-33140-010.1007/978-3-031-33140-4(MiAaPQ)EBC30592756(Au-PeEL)EBL30592756(DE-He213)978-3-031-33140-4(PPN)272265306(CKB)26938283000041(EXLCZ)992693828300004120230612d2023 uy 0engurcnu||||||||txtrdacontentcrdamediacrrdacarrierRoof water disaster in coal mining in ecologically fragile mining areas formation mechanism and prevention and control measures /Yifan Zeng, Zhenzhong Pang, Qiang Wu, Hui Qing Lian, Xin Du1st ed. 2023.Cham :Springer International Publishing :Imprint: Springer,2023.1 online resource (xvi, 360 pages) illustrations (chiefly color)Professional Practice in Earth Sciences,2364-0081Print version: Zeng, Yifan Roof Water Disaster in Coal Mining in Ecologically Fragile Mining Areas Cham : Springer International Publishing AG,c2023 9783031331398 Includes bibliographical references.1. Introduction -- 2. Study on stratigraphic sedimentary characteristics and sedimentary water control mechanism in Yushen mining area -- 3. Characteristics of eco geological environment zoning in ecologically fragile mining areas -- 4. Classification and characteristic analysis of roof water disaster in Yushen mining area -- 5. Study on deformation and damage law of coal seam mining intensity on overlying water bearing (impermeable) rock layer -- 6. Study on the impact of coal mining on surface ecology and groundwater flow field -- 7. Mechanism and prevention and control technology of water inrush caused by mining deterioration in extremely thick sandstone weakly cemented aquifer -- 8. Mechanism and prevention technology of water inrush and sand break under the condition of strong mining with thick loose pores in thin bedrock -- 9. Study on the construction and development of "coal water" dual resource mine under the threat of roof water disaster -- 10. Conclusion.This book targets to earth scientists and engineers, in particular students, researchers, managers, and practitioners, who are interested in mining engineering, environmental engineering, green coal mining, sustainable water resource management, and effective measures to balance mine safety and ecological conservation. In the disciplines of mine hydrogeology and mining engineering, there have always been difficulties in the theoretical interpretation of the changes in the physical and hydraulic characteristics of water resisting strata during coal seam mining. In the past 10 years, the authors studied the relevant contents by using the methods of physical simulation, numerical simulation, field test and mining practice of similar materials, so as to understand the internal relationship between the stratigraphic sedimentary characteristics of the mining area and the occurrence mechanism of mine water disaster. On the premise of analyzing and studying the stratigraphic sedimentary environment in the mining area in detail, it is of great significance for the realization of "coal water" dual resource mining in the mining area to divide the types of roof water disaster in the mining area and study the formation mechanism of mine water disaster caused by different rock formation combinations and mining methods.Professional Practice in Earth Sciences,2364-0081Coal mines and miningSafety measuresMine roof controlMine waterWater-rock interactionCoal mines and miningSafety measures.Mine roof control.Mine water.Water-rock interaction.622.28Zeng Yifan1064472MiAaPQMiAaPQMiAaPQBOOK9910731457603321Roof water disaster in coal mining in ecologically fragile mining areas3553179UNINA