Download or read book Permafrost Tunnel Camp TUTO Greenland written by John F. Abel and published by . This book was released on 1960 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental tunnel, 300 x 9 ft. was driven into a glacial till hillside near Camp TUTO during the summer of 1959 for the purposes of determining the feasibility of excavating subsurface openings in frozen glacial till, developing efficient methods for excavating this material, and determining the characteristics of the glacial till at depth. Excavation of frozen glacial till by conventional hard-rock mining methods, modified slightly to allow for low temperatures, was found to be feasible. The employment, effectiveness, and possible improvement of the mining methods and equipment are discussed and problems for future study are suggested.
Download or read book USA CRREL Technical Publications written by Cold Regions Research and Engineering Laboratory (U.S.) and published by . This book was released on 1972 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Special Report Corps of Engineers U S Army Cold Regions Research and Engineering Laboratory written by Cold Regions Research and Engineering Laboratory (U.S.) and published by . This book was released on 1972 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Type of Cut Delay and Explosive on Underground Blasting in Frozen Gravel written by Richard A. Dick and published by . This book was released on 1970 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of Investigations written by and published by . This book was released on 1970 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Shaping of Greenland s Resource Spaces written by Mark Nuttall and published by Taylor & Francis. This book was released on 2023-08-07 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book examines ideas about the making and shaping of Greenland’s society, environment, and resource spaces. It discusses how Greenland’s resources have been extracted at different points in its history, shows how acquiring knowledge of subsurface environments has been crucial for matters of securitisation, and explores how the country is being imagined as an emerging frontier with vast mineral reserves. The book delves into the history and contemporary practice of geological exploration and considers the politics and corporate activities that frame discussion about extractive industries and resource zones. It touches upon resource policies, the nature of social and environmental assessments, and permitting processes, while the environmental and social effects of extractive industries are considered, alongside an assessment of the status of current and planned resource projects. In its exploration of the nature and place of territory and the subterranean in political and economic narratives, the book shows how the making of Greenland has and continues to be bound up with the shaping of resource spaces and with ambitions to extract resources from them. Yet the book shows that plans for extractive industries remain controversial. It concludes by considering the prospects for future development and debates on conservation and Indigenous rights, with reflections on how and where Greenland is positioned in the geopolitics of environmental governance and geo-security in the Arctic. This book will be of great interest to students and scholars of environmental anthropology, geography, resource management, extractive industries, environmental governance, international relations, geopolitics, Arctic studies, and sustainable development.
Download or read book Tunneling in Permafrost II written by George K. Swinzow and published by . This book was released on 1964 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the 1960 field season, the permafrost tunnel, begun in 1959 in the Tuto area in Greenland, was extended to 605 ft and three rooms were excavated off the main drift. Mining methods and equipment are described and evaluated. The action of explosives on permafrost was investigated and various types of powder are evaluated. The use of advantages provided by the cold environment was demonstrated. A new building material permacrete, was successfully used and its application demonstrated. The glaciology of the region is re-examined in the light of evidence revealed by excavation. It is concluded that permafrost provides a safe underground shelter and that permacrete presents a most suitable material for fortification. (Author).
Download or read book CRREL Report written by Cold Regions Research and Engineering Laboratory (U.S.) and published by . This book was released on 1976 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Amendment to the Naval Petroleum Reserves Production Act of 1976 written by United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Energy and Mineral Resources and published by . This book was released on 1982 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Permafrost Tunneling by a Continuous Mechanical Method written by George K. Swinzow and published by . This book was released on 1970 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: A mechanical method of tunneling in permafrost was investigated by excavating the Alaska Experimental Permafrost Tunnel in a perennially frozen stratum of Fairbanks silt at the edge of a gold dredge field 11 miles north of Fairbanks. The tunnel is 360 ft long and about 7 x 13 ft in cross section. It was cut by the Alkirk continuous cyclic mining method. Certain properties of the frozen silt were investigated and the tunnel was evaluated as a shelter for military purposes. Temperatures, mechanical compositions and moisture contents are discussed and observations on plastic deformation are given. The machine uses a pilot-pull principle to provide face pressure. Its potential performance was evaluated. Special observations of cutting strain and power consumption were performed and the cutting process was analyzed. It was found that the mechanical process is expedient and that with modifications the Alkirk principle promises to become a feasible method of excavating deep shelters in permafrost. Subsurface shelters in permafrost provide advantageous protection against high velocity shocks. The operations' efficiency is analyzed in the appendix.
Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1967 with total page 1062 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Considerations for Drill System Design written by Malcolm Mellor and published by . This book was released on 1975 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drilling systems are discussed in general terms, component functions common to all systems are identified, and a simple classification is drawn up in order to outline relations between penetration, material removal, hole wall support, and ground conditions. Energy and power requirements for penetration of ice and frozen ground are analyzed for both mechanical and thermal processes. Power requirements for removal of material and for hoisting of drill strings are considered, and total power requirements for complete systems are assessed. Performance data for drilling systems working in ice and frozen ground are reviewed, and results are analyzed to obtain specific energy values. Specific energy data are assembled for drag-bit cutting, normal impact and indentation, liquid jet attack, and thermal penetration. Torque and axial force capabilities of typical rotary drilling systems are reviewed and analyzed. The overall intent is to provide data and quantitative guidance that can lead to systematic design procedures for drilling systems for cold regions.
Download or read book The Applicability of Seismic Refraction Soundings in Permafrost Near Thule Greenland written by Hans Roethlisberger and published by . This book was released on 1961 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: The applicability of the seismic refraction method for engineering purposes was investigated in the Thule area of Greenland. Special attention was given to the cases in which shallow ice overlies frozen ground and in which frozen glacial drift up to a few hundred feet thick overlies bedrock. Seismic velocities were measured in different types of sediments of the Thule formation and in the crystalline basement rock. The velocities in rock and frozen ground were generally high, cementation by ice being the most likely reason at the relatively low ground temperatures of about -10 C. It was found that, with comparable velocity discrimination, the refraction method gives more complete information in permafrost than in unfrozen material, since later seismic events can be identified on the records shortly after the first arrival. Later events also made wide angle reflection soundings possible at a depth as shallow as 200 ft. A nagative velocity gradient in the frozen ground is believed to be responsible for the rapid attenuation of tthe direct wave. (Author).
Download or read book Technical Report Corps of Engineers U S Army Cold Regions Research and Engineering Laboratory written by Cold Regions Research and Engineering Laboratory (U.S.) and published by . This book was released on 1968 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Report written by and published by . This book was released on 1970 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design and Construction of Foundations in Areas of Deep Seasonal Frost and Permafrost written by Kenneth A. Linell and published by . This book was released on 1980 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents engineering guidance for the design and construction of foundations in areas of deep seasonal frost and permafrost as developed up to the early 1970's. Attention is given to basic considerations affecting foundation design, site investigations, survey datum points, construction consideration, and monitoring performance. Included in the main text are 17 tables, 141 figures, and 213 selected references. A bibliography presents 45 additional references.
Download or read book USA SIPRE List of Publications written by U.S. Army Snow, Ice, and Permafrost Research Establishment and published by . This book was released on 1958 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
