4th International Symposium on Coupled Phenomena in Environmental Geotechnics

September 11, 18, and 25

About CPEG

Themes

Note: The Symposium program will be released as soon as final paper submissions are confirmed.

The “International Symposium on Coupled Phenomena in Environmental Geotechnics (CPEG)” is a quadrennial event organized under the auspices of the Technical Committee TC215 (Environmental Geotechnics) of the International Society of Soil Mechanics and Geotechnical Engineering (ISSMGE), with a focus on coupled processes (e.g., chemical-physical, bio-physical, multiphase flow, etc.) in environmental geotechnics.

The first symposium of the series was held in Torino (Italy) in 2013, the second in Leeds (UK) in 2017, the third virtually in 2021 hosted from Kyoto (Japan).

The fourth symposium, CPEG2025 will be held virtually.

Virtual CPEG 2025 Overview:

  • Registration: Free to all participants. Register here.

  • Format: Combination of synchronous and asynchronous content.

  • Live Sessions: 13:00–15:00 UTC on Thursdays, September 11, 18, and 25, 2025. We recognize this timing is not ideal for all time zones and appreciate the flexibility of our colleagues in East Asia (late evening) and western North America (early morning).

  • Presentation Submissions: Pre-recorded 12–15 minute presentations due by September 4, 2025.

  • Access: Links to all presentations and proceedings will be distributed to registrants on September 11.

Synchronous Program Highlights:

  • September 11 (13:00–14:00 UTC): Welcome, session highlights from chairs (barriers; remediation; waste - including MSW, CCR, and carbon; and coupled biogeochemistry and geotechnics), and a community discussion on the current state and future of coupled phenomena in environmental geotechnics.

  • September 18 (13:00–15:00 UTC): Q&A sessions and panel discussions for barrier and remediation themes.

  • September 25 (13:00–15:00 UTC): Q&A sessions and panel discussions for waste and coupled biogeochemistry and geotechnics themes, followed by closing remarks.

The symposium will provide an opportunity for networking and discussion around coupled phenomena in environmental geotechnics – where we are at, and where we are going. We’ve designed the three-week format to allow participants ample time to view presentations, engage with the proceedings, and prepare for thoughtful discussion during live sessions.

Coupled Processes, e.g., improved understanding of thermo-hydro-mechanical-chemical-bio-gas processes within soils, rock, and solid waste.

Waste Geotechnics, e.g., tailings and mine waste, radioactive waste disposal, waste degradation and settlement.

Carbon Capture and Storage Sequestration, e.g., carbon capture and storage (CCS), monitoring and verification of CCS

Surface Containment, e.g., engineered barriers/liners, covers, in situ barriers, bioreactor landfilling

Sub-Aqueous Containment, e.g., sub-aqueous capping of contaminated sediments, coupled settlement and contaminant transport

Climate Impacts, e.g., impacts of climate change to environmental containment systems, remediation systems.

Bio-Inspired & Bio-Mediated Geotechnics, e.g., hazard mitigation, dust suppression, vegetation in sustainable management of slopes, environmental protection and restoration.

Energy Geotechnics, e.g., energy geo-storage and geo-structures, energy pile

Others

Key Dates

August 18: Final paper or extended abstract submissions due.

September 4: Pre-recorded 12-15 minute presentations due.

September 11 (13:00–14:00 UTC): Welcome, session highlights from chairs (barriers; remediation; waste - including MSW, CCR, and carbon; and coupled biogeochemistry and geotechnics), and a community discussion on the current state and future of coupled phenomena in environmental geotechnics. Links to asynchronous presentations provided to all registrants.

September 18 (13:00–15:00 UTC): Q&A sessions and panel discussions for barrier and remediation themes.

September 25 (13:00–15:00 UTC): Q&A sessions and panel discussions for waste and coupled biogeochemistry and geotechnics themes, followed by closing remarks.

Organizing Committee

TC215 Technical Committee