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논문 기본 정보

자료유형
학술저널
저자정보
Zhu, Hong-Hu (Department of Civil and Structural Engineering, The Hong Kong Polytechnic University) Yin, Jian-Hua (Department of Civil and Structural Engineering, The Hong Kong Polytechnic University) Dong, Jian-Hua (State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University) Zhang, Lin (State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University)
저널정보
테크노프레스 Geomechanics & engineering Geomechanics & engineering 제2권 제2호
발행연도
2010.1
수록면
89 - 106 (18page)

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Sliding within the dam foundation is one of the key failure modes of a gravity dam. A two-dimensional (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.

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