Mechanisms of hydraulic fracturing in cohesive soil

Jun-jie Wang; Hui-ping Zhang; Ming-jie Zhao; Xin Lin

doi:10.3882/j.issn.1674-2370.2009.04.009

Water Science and Engineering (Dec 2009)

Mechanisms of hydraulic fracturing in cohesive soil

Jun-jie Wang,
Hui-ping Zhang,
Ming-jie Zhao,
Xin Lin

Affiliations

Jun-jie Wang: School of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing 400074, P. R. China
Hui-ping Zhang: School of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing 400074, P. R. China
Ming-jie Zhao: School of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing 400074, P. R. China
Xin Lin: School of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing 400074, P. R. China

DOI: https://doi.org/10.3882/j.issn.1674-2370.2009.04.009
Journal volume & issue: Vol. 2, no. 4
pp. 95 – 102

Abstract

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Hydraulic fracturing in the soil core of earth-rockfill dams is a common problem affecting the safety of the dams. Based on fracture tests, a new criterion for hydraulic fracturing in cohesive soil was suggested. Using this criterion, the mechanisms of hydraulic fracturing in cubic soil specimens were investigated. The results indicate that the propagation of the crack in a cubic specimen under water pressure occurs in a mixed mode I-II if the crack face is not perpendicular to any of the principal stresses, and the crack most likely to propagate is the one that is perpendicular to the minor principal stress and propagates in mode I.

Published in Water Science and Engineering

ISSN: 1674-2370 (Print); 2405-8106 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Hydraulic engineering: River, lake, and water-supply engineering (General)
Website: https://www.journals.elsevier.com/water-science-and-engineering/

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