Comprehensive Evaluation Method for the Safety State of RCC Dams Based on Interval Number Theory

Author:

Chen Xudong12,Xu Peng3,Liu Xinyi4,Su Chen5

Affiliation:

1. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China

2. National Dam Safety Research Center, Wuhan 430019, China

3. Research Institute of Engineering Safety Science/Reservoir & Dam Center, PowerChina Guiyang Engineering Co., Ltd., Guiyang 550081, China

4. Information Management Department/Digital Engineering R&D Center and GIS Center, PowerChina Guiyang Engineering Co., Ltd., Guiyang 550081, China

5. Hohai University Design & Research Institute Co., Ltd., Nanjing 210098, China

Abstract

Roller Compacted Concrete (RCC) dams are critical infrastructure, playing an important role in economic and social development. However, dam failure can cause great losses. To mitigate hazards, studies of methods to deal with the uncertainty involved in the comprehensive evaluation process of the safety state of RCC dams are hot issues. Interval number theory is applied to quantify the uncertainty in this study. A comprehensive evaluation indicator system is explored, an approach to allocating the indicator weight rationally is proposed, and a comprehensive evaluation model is established. Comprehensive evaluation standards are developed. An RCC dam in China is used to illustrate the applicability of this comprehensive evaluation method based on interval number theory. The results indicate that the method and models proposed are suitable for comprehensively evaluating the safety state of RCC dams and can be used as a new procedure to monitor the safety of an RCC dam.

Funder

Belt and Road Special Foundation of the State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering

Fund of National Dam Safety Research Center

Research on Key technologies of spatio-temporal information and collaborative design in engineering

Publisher

MDPI AG

Subject

Water Science and Technology,Aquatic Science,Geography, Planning and Development,Biochemistry

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