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Rock mechanics research requirements for resource recovery, construction, and earthquake hazard reduction |
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Eos, Transactions American Geophysical Union,
Volume 63,
Issue 25,
1982,
Page 545-547
Howard J. Pincus,
John Handin,
William R. Judd,
Terry Engelder,
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摘要:
In 1978, the United States National Committee for Rock Mechanics organized a study to review the current state of knowledge and practice of rock mechanics, to identify deficient areas in which research is required to advance understanding of the science of rock mechanics, and to provide a guide to federal and industrial funding of rock mechanics research. The ultimate objective was to disclose the optimal direction for research in the vital areas of energy and resource recovery, construction, and the mitigation of earthquake hazards. The study was focused on those needs affecting energy‐ and mineral‐resource development, construction, and earthquake hazard reduction. The critical areas included: (1) the determination and prediction of porosity, permeability, and fluid flow in situ; (2) better methods of determining shallow and deep in situ stresses; (3) improvement of the ability to map fracture patterns, particularly major fractures and faults, at depth; (4) improvement of the understanding of rock fragmentation processes so as to increase the effectiveness of drilling and excavation systems; (5) increased understanding of the relation of laboratory‐measured quantities to in situ conditions; (6) better determinative methods for thermal properties of rock, including fractured rock; and (7) development of numerical models to characterize rock beh
ISSN:0002-8606
DOI:10.1029/EO063i025p00545
年代:1982
数据来源: WILEY
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Nation's water picture |
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Eos, Transactions American Geophysical Union,
Volume 63,
Issue 25,
1982,
Page 548-548
Anonymous,
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PDF (1333KB)
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摘要:
After well‐below normal streamflow conditions during May throughout much of the Northeast, recent heavy weekend rainfall (June 5–6) boosted streamflow and produced record high streamflows and flooding in parts of Connecticut. For much of the rest of the nation, May was a month of normal streamflow conditions, according to a month‐end check on the nation's water resources by the U.S. Geological Survey, Department of the Interior.USGS hydrologists said that 60% of the key index gaging stations across the country reported normal streamflow conditions during May. Well‐above normal flows were reported in California, Nevada, and several of the Great Plains
ISSN:0002-8606
DOI:10.1029/EO063i025p00548-01
年代:1982
数据来源: WILEY
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