Foundation construction step by step: Part 1 of 3, Deep Excavation 

This video shows how to do a deep excavation to enable the construction of a foundation for a water retaining structure. It shows the excavation sequence step by step using an animation. It is Part One of a three-part series of videos showing the complete construction of a reinforced concrete retaining structure.
The video covers sheet piles, shoring and dewatering. It also gives a design overview of the deep excavation.
This video is also relevant for retaining walls, basements, foundation walls, or any underground structure. Applicable for construction of building structures underwater, coffer dams, coastal engineering etc