Back analysis of banqiao clay core dam breaching
Publish place: 4th International Conference on long-Term Behavior and Environmentally Friendly Rehabilitaion Technologies of Dams
Publish Year: 1396
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
LTBD04_008
تاریخ نمایه سازی: 25 آذر 1396
Abstract:
In this study, a numerical model is put forward to simulate the Banqiao reservoir dam breaching. Based on the breaching process records, a nmnerical model is put forward. In this model, two different erosion formulas are utilized to simulate the erosion process of dam shell and core materials, respectively; a mechanical equilibrium equation is adopted to simulate the shear failure of clay core; meanwhile, broad- crested weir formula is adopted to calculate breach flow discharge, the limit equilibrium method is tilized to analyze the stability of breach slope as well. In addition, according to the real situation, the model considers dam base erosion. Based on the surveyed records, the calculated results of the proposed model are in accordance with the measu.red data.
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Authors
qiming zhong
Nanjing Hydraulic Research Institute, Key Laboratory of Failure Mechanism and Safety Control Techniques of Earth-rock Dam of the Ministry of Water Resources, Nanjing ۲۱۰۰۲۹, China
shengshui chen
Nanjing Hydraulic Research Institute, Key Laboratory of Failure Mechanism and Safety Control Techniques of Earth-rock Dam of the lVIinistry of Water Resources, Nanjing ۲۱۰۰۲۹, China
shiang mei
Nanjing Hydraulic Research Institute, Nanjing ۲۱۰۰۲۹, China