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What is the importance of divide wall in weir construction?

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Question ajoutée par جعفر هندي زين السقاف , "Certified trainer by the Yemeni Engineers Syndicate." , Engineers Syndicate
Date de publication: 2014/10/22
جعفر هندي زين السقاف
par جعفر هندي زين السقاف , "Certified trainer by the Yemeni Engineers Syndicate." , Engineers Syndicate

Importance of divide walls

 

The divide wall is a masonry or concrete wall constructed at right angle to the axis of the weir.

 

The divide wall extends on the upstream side beyond the beginning of the canal head regulator; and on the downstream side, it extends upto the end of the loose protection of the under-sluices.

 

The divide wall is a long wall constructed at right angles in the weir or barrage, it may be constructed with stone masonry or cement concrete. On the upstream side, the wall is extended just to cover the canal head regulator and on the downstream side, it is extended up to the launching apron.

 

 

It separates the ‘under-sluices’ with lower crest level from the ‘weir proper’ with higher crest level.

 

It helps in providing a comparatively less turbulent pocket near the canal head regulator, resulting in deposition of silt in this pocket and, thus, to help in the entry of silt-free water into the canal.

 

It helps to keep cross-current, if any, away from the weir.

Utilisateur supprimé
par Utilisateur supprimé

Thanks Mr. Jaafer 

I do agree with your answer

hossam azzam
par hossam azzam , Fast food restaurant,s manager. , alexandria-egypt

Thanks for the invitation

I am so sorry as i can,t answer that question

In fact it,s not my specialization field & i am going to follow up the answers

but i do agree with the excellent description given by

Mr.:Gapher zien

Omair Abduljaleel Ali Al-Quliey
par Omair Abduljaleel Ali Al-Quliey , Design Engineer , Quliey Office for constructions

Thank you for invitation>>>

The main functions of the divide walls: 

o  It separates the ‘under-sluices’ with lower crest level from the ‘weir proper’ with higher crest 

level. 

o  It helps in providing a comparatively less turbulent pocket near the canal head regulator, 

resulting in deposition of silt in this pocket and, thus, to help in the entry of silt-free water 

into the canal. 

o  It helps to keep cross-current, if any, away from the weir. 

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