Hydraulic Erosion Rate of Reinforced Tailings: Laboratory Investigation and Prediction Model

Author:

Chen Xuanyi1ORCID,Jing Xiaofei1ORCID,Cai Hai2,Wang Yijun1,Ye Luhua1

Affiliation:

1. School of Safety Engineering, Chongqing University of Science and Technology, Chongqing 401331, China

2. Sichuan Provincial Bureau of Geological and Mineral Exploration Geological Team 202, Sichuan 610000, China

Abstract

Tailings dams are high-potential-energy dams built to store various ore tailings, and the overtopping failure caused by hydraulic erosion is one of the most common failure modes. The characteristics of hydraulic erosion of the reinforced tailings were studied by using the self-made erosion apparatus with four kinds of reinforcement spacing 2.5, 1.7, 1.3, and 1.0 cm, respectively. The test results show a positive correlation between the reinforcement spacing and erosion rate of tailings. Based on the sediment scouring theory, the scouring constant in the erosion rate formula is determined to be 0.056 mm/s; a prediction model for the hydraulic erosion rate of reinforced tailings is established by introducing the collapse coefficient into the results of the overflow test of reinforced tailings. This model can provide a reference for the prediction of overtopping-induced erosion failure of the reinforced tailings dam.

Funder

National Natural Science Foundation of China

Publisher

Hindawi Limited

Subject

General Engineering,General Materials Science

Reference34 articles.

1. Review of new progress in tailings dam safety in foreign research and current state with development trent in China;G. M. Yu;Chinese Journal of Rock Mechanics and Engineering,2014

2. The effects of a tailing dam failure on the sedimentation of the eastern Brazilian inner shelf

3. Study on the risk assessment of the tailings dam break;X. Zheng;Procedia Engineering,2011

4. Catastrophic tailings dam failures and disaster risk disclosure

5. Reported tailings dam failures

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