publication . Article . 2018

A simplified physically-based breach model for a high concrete-faced rockfill dam: A case study

Qiming Zhong; Shengshui Chen; Zhao Deng;
Open Access English
  • Published: 01 Jan 2018 Journal: Water Science and Engineering, volume 11, issue 1, pages 46-52 (issn: 1674-2370, Copyright policy)
  • Publisher: Elsevier
Abstract
A simplified physically-based model was developed to simulate the breaching process of the Gouhou concrete-faced rockfill dam (CFRD), which is the only breach case of a high CFRD in the world. Considering the dam height, a hydraulic method was chosen to simulate the initial scour position on the downstream slope, with the steepening of the downstream slope taken into account; a headcut erosion formula was adopted to simulate the backward erosion as well. The moment equilibrium method was utilized to calculate the ultimate length of a concrete slab under its self-weight and water loads. The calculated results of the Gouhou CFRD breach case show that the proposed ...
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free text keywords: Ocean Engineering, Civil and Structural Engineering, lcsh:River, lake, and water-supply engineering (General), lcsh:TC401-506, Geology, Parametric model, Slab, Geotechnical engineering, Erosion, Flow (psychology), Moment equilibrium
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