Download or read book Information Circular 9466 Geologic Hazards and Roof Stability in Coal Mines written by Gregory M. Molinda and published by CreateSpace. This book was released on 2013-11 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. underground coal miner faces a continuing hazard from the fall of roof. At the root of many injuries and fatalities are weak or defective roof strata. Throughout mining history, millions of miles of entry have provided exposure of every conceivable geologic roof hazard. This report describes the geologic origin, association, and potential danger from the most common hazards. Discussions of weak rock include drawrock, rider coals, head coal, stackrock, and stream valley effects. Discontinuities, or roof defects, are described including, clay veins, slickensides, joints, and paleochannels. A number of examples from U.S. coalfields are used to document geologic structure and associated hazards. Roof fall analysis is a methodology used by NIOSH for hazard recognition and prevention; its application and benefit to the industry are discussed.

Download or read book Geologic Hazards and Roof Stability in Coal Mines written by Gregory M. Molinda and published by . This book was released on 2003 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geologic Factors in Coal Mine Roof Stability written by Noel N. Moebs and published by . This book was released on 1984 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Information Circular written by and published by . This book was released on 1951 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Predicting Probable Roof Fall Areas in Advance of Mining by Geological Analysis written by William K. Overbey and published by . This book was released on 1973 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Guide to Geologic Features Affecting Coal Mine Roof written by Robert Lee Stahl and published by . This book was released on 1979 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Roof Control of Stress relief Jointing Near Outcrops in Central Appalachian Drift Coal Mines written by Gary P. Sames and published by . This book was released on 1992 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Control of Roof and Prevention of Accidents from Falls of Rock and Coal written by John Joseph Vincent Forbes and published by . This book was released on 1948 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Vertebrate Paleontology in Utah written by David D. Gillette and published by Utah Geological Survey. This book was released on 1999 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 52 papers in this vary in content from summaries or state-of-knowledge treatments, to detailed contributions that describe new species. Although the distinction is subtle, the title (Vertebrate Paleontology in Utah) indicates the science of paleontology in the state of Utah, rather than the even more ambitious intent if it were given the title “Vertebrate Paleontology of Utah” which would promise an encyclopedic treatment of the subject. The science of vertebrate paleontology in Utah is robust and intense. It has grown prodigiously in the past decade, and promises to continue to grow indefinitely. This research benefits everyone in the state, through Utah’s muse ums and educational institutions, which are the direct beneficiaries.

Download or read book Coal Mine Roof Rating CMRR written by Gregory M. Molinda and published by . This book was released on 1994 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Challenges of Highland Development in Vietnam written by A. Terry Rambo and published by . This book was released on 1995 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Data Driven Mining Learning and Analytics for Secured Smart Cities written by Chinmay Chakraborty and published by Springer Nature. This book was released on 2021-04-28 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides information on data-driven infrastructure design, analytical approaches, and technological solutions with case studies for smart cities. This book aims to attract works on multidisciplinary research spanning across the computer science and engineering, environmental studies, services, urban planning and development, social sciences and industrial engineering on technologies, case studies, novel approaches, and visionary ideas related to data-driven innovative solutions and big data-powered applications to cope with the real world challenges for building smart cities.

Download or read book Geohazards written by Madhavi Latha Gali and published by Springer Nature. This book was released on 2020-08-13 with total page 763 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume comprises select papers presented during the Indian Geotechnical Conference 2018. This volume discusses concepts of soil dynamics and studies related to earthquake geotechnical engineering, slope stability, and landslides. The papers presented in this volume analyze failures connected to geotechnical and geological origins to improve professional practice, codes of analysis and design. This volume will prove useful to researchers and practitioners alike.

Download or read book Ecological Effects of Water level Fluctuations in Lakes written by Karl M. Wantzen and published by Springer Science & Business Media. This book was released on 2009-05-06 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most aquatic ecosystems have variable water levels. These water-level fluctuations (WLF) have multiple effects on the organisms above and below the waterline. Natural WLF patterns in lakes guarantee both productivity and biodiversity, while untimely floods and droughts may have negative effects. Human impacts on WLF have led to a stabilization of the water levels of many lakes by hydraulic regulation, untimely drawdown due to water use, or floods due to water release from hydropower plants in the catchments. This book provides a first review in this field. It presents selected papers on the ecological effects of WLF in lakes, resulting from a workshop at the University of Konstanz in winter 2005. Issues addressed here include the extent of WLF, and analyses of their effects on different groups of biota from microorganisms to vertebrates. Applied issues include recommendations for the hydrological management of regulated lakes to reduce negative impacts, and a conceptual framework is delivered by an extension of the floodpulse concept for lakes. Current impacts on water use, including increasing demands on drinking and irrigation water, hydropower etc., and climate change effects on WLF make this book an essential resource for aquatic ecologists, engineers, and decision-makers dealing with the management of lake ecosystems and their catchments.

Download or read book Narrative of a Second Voyage in Search of a North west Passage and of a Residence in the Arctic Regions During the Years 1829 1830 1831 1832 1833 written by Sir John Ross and published by London : Orlando Hodgson. This book was released on 1835 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Soil Erosion and Sedimentation Control written by and published by . This book was released on 1981 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quick Reference General Knowledge written by Edgar Thorpe and published by Pearson Education India. This book was released on 2014 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quick Reference General Knowledgeis a thoroughly researched, exam oriented text, which will help students to master general knowledge from a variety of fields. This book will prepare students for numerous competitive examinations. The book covers various topics such as history, geography, Indian polity, Indian economy, general science and general knowledge, presenting concise and clear explanations for the students. This book will be useful for SSC, Banking, UPSC, NDA, CDS and other examinations.