In this episode, we’ll cover global project highlights, new tools and research, a deep-dive topic on Seismic Ground Improvement Solution, a brief look back at geotechnical history, and finally, we’ll share some upcoming courses and seminars from around the globe.

Segment 1: Global Project Highlights:

Rainfall-triggered rockfall disrupts Highway 18 in Southern California

https://www.geoengineer.org/news/rainfall-triggered-rockfall-disrupts-highway-18-in-southern-california

British Geological Survey releases suite of ten new soil reference materials

https://www.bgs.ac.uk/news/suite-of-ten-new-soil-reference-materials-released/

Four killed, 12 injured in illegal mine collapse in Monapo, Mozambique

https://www.geoengineer.org/news/four-killed-12-injured-in-illegal-mine-collapse-in-monapo-mozambique

1.5-km MT-5 tunnel breakthrough marks milestone for India’s bullet train

https://www.geoengineer.org/news/15-km-mt-5-tunnel-breakthrough-marks-milestone-for-indias-bullet-train

Segment 2: Research and Tech Tools

Grouting pipe lifting rate shown to control vacuum preloading efficiency

https://link.springer.com/article/10.1007/s10706-025-03589-y

Scientists stunned by a massive hydrothermal field off Greece

https://www.sciencedaily.com/releases/2025/12/251228020000.htm

New scaling law refines centrifuge modelling of seepage failure in gap-graded soils

https://link.springer.com/article/10.1007/s10706-025-03565-6

Initial clay structure shown to control permeability evolution

https://cdnsciencepub.com/doi/10.1139/cgj-2025-0348

Segment 3: Deep Dive Topic

Encinal High School Stadium ground improvement addresses seismic and liquefaction risk

https://www.geoengineer.org/news/encinal-high-school-stadium-ground-improvement-solution-to-address-seismicity-concerns

Segment 4: This Week in Geotechnical History

The Institution of Civil Engineers was formed

https://www.geoengineer.org/on-this-day/01/02

Segment 5: Upcoming Courses & Seminars

Event links:

· issmge.org

· efstm.com

· https://alertgeomaterials.eu/2025/10/2026-international-conference-on-computational-dynamic-soil-structure-interaction/

· https://www.issmge.org/events/8iygec

For suggestions and feedback: thisweekingeotechnics@gmail.com