Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/20616
Title: Physical modelling of sliding failure of concrete gravity dam under overloading condition
Authors: Zhu, HH
Yin, JH 
Dong, JH
Zhang, L
Keywords: Concrete gravity dam
Fiber Bragg grating (FBG)
Overloading
Physical model test
Rock foundation
Sliding failure
Issue Date: 2010
Source: Geomechanics and engineering, 2010, v. 2, no. 2, p. 89-106 How to cite?
Journal: Geomechanics and Engineering 
Abstract: Sliding within the dam foundation is one of the key failure modes of a gravity dam. A twodimensional (2-D) physical model test has been conducted to study the sliding failure of a concrete gravity dam under overloading conditions. This model dam was instrumented with strain rosettes, linear variable displacement transformers (LVDTs), and embedded fiber Bragg grating (FBG) sensing bars. The surface and internal displacements of the dam structure and the strain distributions on the dam body were measured with high accuracy. The setup of the model with instrumentation is described and the monitoring data are presented and analyzed in this paper. The deformation process and failure mechanism of dam sliding within the rock foundation are investigated based on the test results. It is found that the horizontal displacements at the toe and heel indicate the dam stability condition. During overloading, the cracking zone in the foundation can be simplified as a triangle with gradually increased height and vertex angle.
URI: http://hdl.handle.net/10397/20616
ISSN: 2005-307X
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