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Synthesis of Programmable Main-chain Liquid-crystalline Elastomers Using a Two-stage Thiol-acrylate Reaction

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Static and Dynamic Properties Study on Interface between New Polymer Materials and Silty Clay Based on Ring Shear

Jia Li¹, Jie Li¹, Jingwei Zhang¹

¹School of Water Conservancy and Civil Engineering, Zhengzhou University, Zhengzhou 450001, China.

|February 11, 2023

Summary

Polymer anti-seepage walls offer superior performance in dams. This study investigates the polymer-silty clay interface, revealing its mechanical properties and establishing a constitutive model for improved structural analysis and application.

Keywords:

original designed test mould polymer anti-seepage wall polymer materials ring shear tests static and dynamic properties of the interface the hyperbolic constitutive model

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Area of Science:

Geotechnical Engineering
Material Science

Background:

Polymer anti-seepage walls represent an advancement in dam and dyke reinforcement.
These walls offer advantages over traditional grouting, including early strength and durability.
The unique "root-like" interface formed between polymer materials and dam soils influences structural behavior.

Purpose of the Study:

To investigate the static and dynamic properties of the polymer-silty clay interface.
To understand the influence of various factors on this interface.
To establish and validate a constitutive model for the polymer-silty clay interface.

Main Methods:

Utilized an SRS-150 dynamic ring shear instrument with a custom-designed test mould.
Conducted static and dynamic ring shear tests.
Developed a hyperbolic constitutive model and verified it through numerical simulations.

Main Results:

Characterized the static and dynamic mechanical properties of the polymer-silty clay interface.
Identified key factors influencing interface behavior and elucidated the underlying mechanisms.
Successfully established and validated a hyperbolic constitutive model for the interface.

Conclusions:

The study provides crucial data on the polymer-silty clay interface properties.
The developed constitutive model offers a scientific basis for structural mechanical analysis.
Findings support the wider adoption of polymer anti-seepage technology in civil engineering projects.