Service Life Prediction of Flexible Concrete Mattresses (FCMs) in the Yangtze River

Author:

Wang Pingyi1,Tian Ye1,Wang Meili2ORCID,Guo Genting3

Affiliation:

1. National Engineering Research Center for Inland Waterway Regulation of Chongqing Jiaotong University, Chongqing 400074, China

2. College of Architecture and Urban Planning, Chongqing Jiaotong University, Chongqing 400074, China

3. Guangdong No.2 Hydropower Engineering Company, Ltd., Guangzhou 511340, China

Abstract

Many scholars have studied the failure mechanism of waterway regulating structures, but there is still a need to improve research on their reliability and service life in the industry. Currently, flexible concrete mattresses (FCMs) are the regulating structure widely used on the Yangtze River Golden Waterway, so it is important to study their service life. The stability function has been built based on the mechanism of stability against sliding and a time-varying reliability model. Experiments have been conducted to analyze the critical failure load of FCMs, determine the influence parameters, and derive a service life calculation formula. Finally, the middle reaches of the Yangtze River were taken as an example for analysis.

Funder

National Natural Science Foundation of China

Chongqing Basic Research and Frontier Exploration Project

Natural Science Foundation of Chongqing, China

Publisher

MDPI AG

Subject

Management, Monitoring, Policy and Law,Renewable Energy, Sustainability and the Environment,Geography, Planning and Development,Building and Construction

Reference20 articles.

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2. McLaren, R.W.G. (2019). Investigation of Hydrodynamic Forces on Articulated Concrete Block Mattresses in Fluid Flow from Various Horizontal Directions. [Ph.D. Thesis, University of Tasmania].

3. Geosynthetics for waterways and flood protection structures—Controlling the interaction of water and soil;Heibaum;Geotext. Geomembr.,2014

4. Tschernutter, M.W., Krueger, B., Schuell, M., and Tschernutter, P. (2012, January 23–25). Erosion Resistant Construction of Overflow Sections by means of Geosynthetic Concrete Mattresses. Proceedings of the International Conference on Software Engineering, Paris, France.

5. Griffiths, T., Griggs, R., and Khiadani, M. (2022, January 5–10). CFD Modelling of Flexible Concrete Mattress Hydrodynamic Forces. Proceedings of the ASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering, Hamburg, Germany.

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