The mechanics of healing and self-healing in clayey soils

粘土的愈合和自愈机制

• 批准号: DP170104192
• 负责人: Prof David Airey
• 金额: $ 28.78万
• 依托单位: The University of Sydney
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2017
• 资助国家: 澳大利亚
• 起止时间: 2017-03-10 至 2020-03-09
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP170104192
• 关键词: mechanics; healing; self; clayey; soils

This project aims to develop an experimentally-validated theory of healing and self-healing in clay and determine clay-polymer mixtures that heal cracks and fissures in clay. Healing of fissures will improve strength and reduce hydraulic conductivity, which will reduce risks associated with construction on fissured clay and make clay barrier systems in dehydrating environments more reliable. The project’s observations of crack healing are expected to advance understanding of this phenomenon of soil mechanics and of geotechnical applications where cracking can occur, such as in foundation design, waste containment, slope stability and embankment dams.

该项目旨在开发一种经过实验验证的粘土愈合和自我愈合理论，并确定粘土与聚合物的混合物可以治愈粘土中的裂缝和裂缝。裂缝的愈合将提高强度并降低水力传导性，这将降低在裂缝粘土上施工的风险，并使脱水环境中的粘土屏障系统更加可靠。该项目对裂缝愈合的观察有望促进对这一土力学现象和可能发生裂缝的岩土应用的理解，例如在基础设计、废物遏制、斜坡稳定性和土石坝方面。