Author:
Zhang Jingwei,Huang Chuhao,Li Jia,Liu Guangzong
Abstract
Polymer anti-seepage wall has been gradually applied in earth-rock dam reinforcement projects as a new seepage control technique. However, due to all-pervasive properties of the new materials and root-like connection between the materials and soils, the interface characteristics between the polymer wall and the earth-rock dam, as well as the interaction behavior of both, are complex and still not clear, which obstruct studying coordination mechanism of dam and wall under earthquake. Therefore, the interface characteristics and interaction behavior of dam and wall were studied in the article. Firstly, the dynamic shear stress-displacement, shear stiffness and damping ratio of the interface between polymer and soil were investigated by ring shear test. In addition, the viscoelastic constitutive model of polymer materials were researched by dynamic mechanical analysis (DMA) test. Based on tests results, a finite element model of earth-rock dam with polymer wall was established, including a non-linear simulation interface element and viscoelastic polymer constitutive model. Next, the validity of the simulation model was verified based on dynamic centrifuge test results. Then, the interaction behavior and seismic response of the dam with polymer wall were explored by using the verified model. The research results provide a scientific basis for the development and application of new-typed polymer anti-seepage wall in reinforcement engineering.
Funder
National Natural Science Foundation of China
Key Scientific and Technological Project of Henan Province
Subject
Management, Monitoring, Policy and Law,Renewable Energy, Sustainability and the Environment,Geography, Planning and Development,Building and Construction
Reference36 articles.
1. Review on dynamic behaviour of earth dam and embankment during an earthquake;Gordan;Geotech. Geol. Eng.,2022
2. Study on seismic failure probability of high earth-rock dam considering dam body deformation and slope stability;Li;Eur. J. Environ. Civ. Eng.,2020
3. Study on the anti-seepage reinforcement scheme of earth-rock dam for Changli reservoir;Chai;Adv. Mater. Res.,2014
4. Zhang, H., Li, Z., Li, W., Song, Z., Ge, W., Han, R., and Wang, T. Risk analysis of instability failure of earth-rock dams based on the fuzzy set theory. Water, 2021. 13.
5. Dynamic risk assessment of slope stability of homogeneous earth-rock dam under action of multiple hazards;Su;Simulation,2022
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献