Abstract
Local soil collapse due to the rise of air pressure in a subsurface cavity or trapped air bubble is investigated. Considering that the most of the shallow ground is unsaturated, air may play an important role in the ground failure phenomenon. The air can be trapped in the ground due to sudden water inflows when surface ground is saturated by rainfalls.
In this study, local failure was observed in the soil specimen when the pore air was trapped between saturated soil layers and the air pressure was elevated.[This abstract is not included in the PDF]
