buttress2 - Written Report in Engineering Geology Buttress...

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Written Report in Engineering Geology. Buttress Dam/ Reported by Group 2 DEFINITION: Buttress Dams- A buttress dam or hollow dam is a dam with a solid, water- tight upstream side that is supported at intervals on the downstream side by a series of buttresses or supports. The dam wall may be flat or curved. Most buttress dams are made of reinforced concrete and are heavy, pushing the dam into the ground. Water pushes against the dam, but the buttresses are inflexible and prevent the dam from falling over. Buttress dams were originally built to retain water for irrigation or mining in areas of scarce or expensive resources but cheap labour. A buttress dam is a good choice in wide valleys where solid rock is rare. Buttress Dam- Buttress dams can also be called Ambursen dams after the American engineer who greatly used this type of dam in the early 20th century. Originally buttress dams were used in areas requiring irrigation, but where the land was not capable of supporting the size and weight of other types of dams. Generally buttress dams are built in wide valleys. The name "buttress" dam comes from the structure of the dam itself. The dam is supported at intervals by several buttresses,
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