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- W623721805 abstract "To gain insight into the phenomenon of hydraulic fracturing in clay, laboratory tests and complementary numerical studies have been conducted. Cylindrical samples of soil have been fractured in the laboratory by increasing water pressures in a central cavity via a hypodermic probe. This has been simulated with finite elements implementing Biot's consolidation theory together with an elasto-plastic strain hardening constitutive model. Both diametral (axisymmetric) and plan (plain strain) sections have been modelled. Fracturing has been studied with respect to several different failure criteria. The best fit to experimental data is offered by that of zero effective hoop stress in clay elements near the cavity. Rate of cavity pressure increase has also been investigated and is shown to have a strong influence on fracturing pressure. (Author/TRRL)" @default.
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- W623721805 date "1988-01-01" @default.
- W623721805 modified "2023-09-27" @default.
- W623721805 title "NUMERICAL INVESTIGATION OF HYDRAULIC FRACTURING IN CLAYS. PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON NUMERICAL METHODS IN GEOMECHANICS, 11-15 APRIL 1988, INNSBRUCK, AUSTRIA. VOLUMES 1 - 3" @default.
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