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Laboratory characterization of rock failure mechanisms in a chemically enhanced environment.

Authors
Karfakis-MG; Akram-M
Source
Rock Mechanics: Contributions and Challenges: Proceedings of the 31st U.S. Symposium, June 18-20, 1990, Colorado School of Mines, Golden Colorado. Hustrulid WA, Johnson GA, eds. Brookfield, VT: A.A. Balkema, 1990 Jan; :497-504
Link
NIOSHTIC No.
20038868
Abstract
The characterization of tensile and shear failure of rocks in a chemically enhanced environment is the subject of an ongoing multi-year project. Two distinct testing programs aim to characterize respectively: (a) the tensile failure; and (b) the shear failure. Using rock mechanics and fracture mechanics techniques, rock specimens are being tested for fracture toughness, total work of fracture, crack propagation rate, elastic and plastic crack deformation, crack behavior under cyclic loading, coefficient of friction, shear strength, and shear stiffness. Rock specimens are tested under four different environments: air-dried atmospheric; saturated with distilled deionized water; saturated with aluminum chloride solution at ZPC concentration; and saturated with a nonionic polymer at ZPC concentration. For the design of the experiments, response surface methodology is being used. This paper presents the scientific rationale, the experimental set-up, procedure and design along with the data acquisition, reduction and analysis.
Keywords
Rock-mechanics; Excavation-equipment; Failure-analysis; Cutting-oils; Cutting-tools; Mining-equipment; Engineering; Fluids; Hydraulic-fluids; Machine-tools; Tensile-strength; Laboratory-testing; Surface-properties; Lubricants; Lubricating-oils; Aluminum-compounds; Chlorides
CAS No.
7446-70-0
Publication Date
19900101
Document Type
Conference/Symposia Proceedings
Editors
Hustrulid-WA; Johnson-GA
Funding Type
Grant
Fiscal Year
1990
NTIS Accession No.
NTIS Price
ISBN No.
9789061911234
Identifying No.
Grant-Number-G1175151
Source Name
Rock Mechanics: Contributions and Challenges: Proceedings of the 31st U.S. Symposium, June 18-20, 1990, Colorado School of Mines, Golden Colorado
State
VA; CO
Performing Organization
Virginia Polytechnic Institute & State University
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