Examining the potential for negative suction in hydrophobic soils to improve geotechnical engineering solutions in waste management

检查疏水性土壤中负吸力的潜力，以改进废物管理中的岩土工程解决方案

• 批准号: 2106625
• 金额: --
• 依托单位: University of Edinburgh
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2106625
• 关键词: Examining; potential; negative; suction; hydrophobic

This primary aim of this PhD will be to determine whether the phenomenon of negative suction is exhibited in hydrophobic soils. This will allow for connecting retention with hydrophobic soil permeability, which will answer the fundamental (1) question posed in the rationale. The outcome is likely to influence future testing and the development of a theoretical framework around the hydro- mechanical properties of hydrophobic soils, which will allow answering further questions regarding the applicability of hydrophobic soils in ground engineering.A list of preliminary objectives is:1. Characterise wetting and drying phase progression in hydrophobic sandy soils2. Develop a testing methodology for examining retention in hydrophobic soils3. Describe the relationship between retention in hydrophobic soils and permeability4. Determine causes for retention property changes between hydrophilic and hydrophobic states by connecting the results analytically to shear strength.5. Examine the resilience of hydrophobic soils to different environmental conditions.It is anticipated that both the primary aim and the objectives of this project will be refined during the course of the research.

这个博士的主要目的将是确定负吸力的现象是否表现在疏水性土壤。这将允许将保留与疏水土壤渗透性联系起来，这将回答基本原理中提出的基本问题（1）。结果可能会影响未来的测试和发展的理论框架周围的疏水性土壤的水力力学性质，这将允许回答进一步的问题，有关的适用性疏水性土壤在地面工程。表征疏水性桑迪土中的润湿和干燥阶段进展2.开发一种测试方法，用于检查疏水土壤中的保留情况3。描述在疏水土壤中的保持力和渗透性之间的关系。通过将分析结果与剪切强度联系起来，确定亲水和疏水状态之间保留性能变化的原因。研究疏水性土壤对不同环境条件的恢复力。预计在研究过程中，该项目的主要目的和目标将得到完善。