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The gallery is a small passing in a dam for providing an access to the interior of the dam. There are kinds of them as Prof. Bakenaz A. Zeidan answered. Some of the purposes of those kinds are:1- Drain the water which percolates through the foundation.2- Use it to drill and grout of the foundations.3- Install various instruments in dam to study its structural behaviour.4- provide space for the mechanical and electrical equipments.
I agree with the experts, Prof. Zeidan and Eng.Galal
common types of dam galleries are (Ref. USBR):
Foundation Gallery
Drainage Gallery
Gate Galleries
Gate Galleries
Visitors’ Galleries
Cu ble Galleries
Inspection Galleries
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Prof. Bakenaz A. Zeidan
Hi, Sorry I'm a specialist in dam.
I agree and thanks to Prof. Bakenaz A. Zeidan.
