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

这个PHD的主要目的将是确定在疏水性土壤中是否表现出负吸力现象。这将允许将滞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(1)问题。这一结果可能会影响未来关于疏水土壤水力学性质的测试和理论框架的发展，这将允许回答关于疏水土壤在地面工程中的适用性的进一步问题。初步目标清单是：1.表征疏水砂质土壤中的湿相和干燥相进程2。开发一种检测疏水性土壤中保留力的测试方法3。描述疏水土壤中的滞留与渗透性之间的关系。通过将结果解析地与剪切强度联系起来，确定亲水和疏水状态之间保留性变化的原因。检查疏水土壤对不同环境条件的恢复能力。预计在研究过程中，该项目的主要目的和目标都将得到改进。

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.