Geotechnical engineering is a branch of engineering that deals with the behavior of earth materials such as dirt, sand, etc. It is most commonly found in civil engineering but is also used in mechanical, mining, petroleum, or any other engineering concerned with construction on or in the ground. Even home builders use geotechnical engineering when pouring foundations on to different types of grounds.
Whether studying for an engineering degree or just have a passing interest in earth materials, you can find loads of captivating images and information in these 25 amazing galleries on geotechnical engineering. They are authored by those who teach it, practice it for a living, or happen to have a camera whenever it happens.