Hydraulic Fracturing in Zoned Earth and Rockfill Dams: A Report of an Investigation.

摘要

The investigation involves two parts:first,an experimental investigation to study the phenomenon of hydraulic fracturing under carefully controlled laboratory conditions;and second,an analytical investigation to determine the conditions under which the stresses in the cores of zoned dams may be reduced sufficiently by arching so that hydraulic fracturing can occur. Analyses were also performed to examine the effectiveness of various countermeasures which can reduce the arching and the likelihood of hydraulic fracturing.