Engineering Geologist’s Role in Hard Rock Tunnel Machine Selection
Published:January 01, 1972
The engineering geologist must accept the responsibility of providing planning leadership and applicable explorations for contractors and manufacturers to evaluate properly the possible use of a tunneling machine on a project. Explorations and laboratory and field tests must be conducted to determine in advance those characteristics which will affect the efficiency and economics of a machine-driven tunnel. To accomplish this will require more detailed data than that normally developed for conventionally driven tunnels. The geologic factors which influence tunneling machines, current laboratory and in situ borability tests, laboratory test programs, and the future of geologic explorations are discussed in light of the engineering geologist’s role.
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Geological Factors in Rapid Excavation
Prepared by the Case Histories Committee for the Engineering Geology Division of the Geological Society of America, these histories are intended as reference material for the practicing geologist and for the college student. This volume, the ninth in the series, contains the following papers: Rapid excavation and the role of engineering geology; The engineering geologist’s role in hard rock tunnel machine selection; Some geological structural influences in quarrying limestone and dolomite; Geologic factors in rapid excavation with nuclear explosives; Theory of spacing of extension fracture; Experimental investigation of sliding friction in multilithologic specimens; Total systems approach to rapid excavation and its geological requirements; and more.