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drainage behind shoring and permanent wall

[Subject Prev][Subject Next][Thread Prev][Thread Next] Suppose you have temporary shoring which will be part of permanent wall. height 25 to 29 feet.
welcome suggestions for drainage behind wall... and placement of same. space is confined. Continuous lagging. Width between piles is 6 feet. Sand drains? Mirafi drainage material? Should detail be shoring engineers responsibility or structural engineer?
Retained earth is very cohesive and locally stable.
I welcome any comments or sharing of actual experience.
Chris Lillback