PhD in Investigation of Coastal Cliff Instability Due to Extreme Weather Conditions

This fully funded PhD opportunity at Imperial College London investigates the mechanisms behind coastal cliff instability triggered by extreme weather conditions, with a particular focus on heatwaves and drying events. The project responds to recent climate-driven hazards, such as the 2022 cliff collapses near Sidmouth, Devon, which occurred during record-breaking heat rather than rainfall. These events highlight a poorly understood risk: geotechnical instability caused by excessive heat and drying, including processes like thermal expansion, desiccation cracking, and reductions in soil strength. The research will systematically study the hydromechanical response of unsaturated coastal geomaterials, especially those from the Mercia Mudstone Group, under extreme drying conditions representative of current and future UK climates. The student will conduct advanced element testing in Imperial College London's world-leading geotechnical laboratories and participate in the instrumentation and long-term monitoring of a field site in Devon. Collaboration with local council authorities and industry partners will guide field monitoring campaigns and ensure the research has practical impact. The project features close collaboration with Geotechnical Observations, providing expert guidance on field instrumentation, and the British Geological Survey (BGS), offering access to the National Landslide Database, laboratory facilities, and stakeholder engagement through the Engineering Geology and Geohazards Team. This multidisciplinary environment will allow the student to develop expertise in geomechanics, unsaturated soil behaviour, and climate-driven geohazards, while working alongside leading academics and industry professionals. Applicants should have, or expect to obtain, a First Class or Upper Second Class (2:1) degree (or international equivalent) in Civil Engineering, Engineering Geology, Geology, or a closely related discipline. Desirable qualifications include prior laboratory or experimental experience in geotechnical engineering, soil/rock testing, or related investigations. Essential skills are strong analytical and data processing ability, a clear interest in the project's research areas, and excellent written and verbal communication skills in English. The studentship provides full funding for up to 3.5 years, covering home tuition fees (3 years) and a tax-free stipend at the UKRI London rate (£22,780 per year) for 3.5 years. Funding is available to Home students only. Applications are accepted on a rolling basis until the position is filled, with the final deadline on December 18, 2026. To apply, send a cover letter addressing the requirements, a current CV including degree result and class ranking, and academic transcripts to Dr Tiago Gaspar ([email protected]). Application via the Imperial College Registry is not required at this stage. Successful candidates will be invited to formally submit their PhD application to the Registry after initial review. This project offers a unique opportunity to contribute to the understanding and mitigation of climate-driven geotechnical hazards, develop advanced research skills, and engage with a network of academic and industry experts in a world-class research environment.