ABSTRACT

ABSTRACT: This study presents the empirical relations between creep parameters, including initial creep stress, failure creep stress, elastic modulus, viscosity, cohesion and friction angle, and water content, derived from the experimental data of a series of creep tests on several rocks. These empirical relations may be used to evaluate the effects of water content on the long-term mechanical behaviors of rock masses. Assuming the distribution of moisture content into the surrounding rock of an underground excavation can be calculated by the classic pure diffusion equation, a normalized diagram is developed to determine the distribution of creep parameters in the surrounding rock mass as a function of both space and time.

Keywords:
drilling fluid management & disposal, triaxial creep test, water content, Upstream Oil & Gas, initial creep stress, Reservoir Characterization, creep test, empirical relation, underground excavation, failure mode
Subjects:
Drilling Fluids and Materials, Reservoir Characterization, Drilling fluid management & disposal
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2000. A.A. Balkema - Permission to Distribute - American Rock Mechanics Association
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