What is a sinkhole? A geotechnical engineer explains

Sinkholes are back in the news after a 13-year-old boy fell down a two meter deep hole in a waterlogged football field in Sydney over the weekend. The boy reportedly sank further into the hole every time he tried to push ...

Monitoring Earth's shifting land

The monitoring of land subsidence is of vital importance for low-lying countries, but also areas which are prone to peculiar ground instability.

How to detect a sinkhole – before it swallows you up

It comes as quite a shock when the ground beneath your feet, your house or your field suddenly disappears leaving a hole. This hole may be tens of metres or more deep, and it will eventually lead into a cavity which may extend ...

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