ELI5: Explain Like I'm 5

Geotechnical investigation

Geotechnical investigations are like playing detectives, but for the soil and rocks in the ground. Sometimes people want to build big buildings or bridges, and they need to know if the ground can handle the weight of those structures. Geotechnical investigators study the ground to make sure that it's strong enough.

First, they start by drilling big holes in the ground or digging pits to take out samples of the soil and rocks. They take those samples to the lab to test them and see how strong they are. They also look for signs of water or soft spots in the ground that could cause problems.

Next, they use machines to measure how the ground moves and how deep it is. They can find out how much weight it can hold and how long it will take for the ground to settle.

Finally, they put all this information together and make a report that tells people how to build safely on that ground. They might recommend ways to make the soil stronger, like adding more rocks or making it more compact. They might also suggest avoiding building in certain areas where the ground is too weak.

Overall, geotechnical investigations are all about making sure that our buildings and structures are built on safe and strong ground.