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RE: Basement Walls (Slot Cuts )

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Just be careful with unruly contractors who get carried away with excavation. I was called to a job site on New Year holiday with over excavated cuts (in the range 20’ long instead of the usual 5’-8’). A big mess that affected the neighboring property and structure. Careful monitoring of the excavation is critical with this method.



Ben Yousefi, SE

Santa Monica, CA


From: asqengg2(--nospam--at) [mailto:asqengg2(--nospam--at)]
Sent: Friday, February 03, 2006 1:02 AM
To: seaint(--nospam--at)
Subject: Baement Walls (Slot Cuts )



I have an apartment building project with an underground parking. The contractor is planning to construct the basement walls in segments of 8 ft. (slot cuts). The walls are to be constructed using ABC method, i.e., pouring the A segment first then the B segment then the C portion of the wall alternately.  I don't see any problem with this although I would have preferred a one continuous pouring. 


With the slot cuts method, initally I worry about the cold joints but since the basement wall is designed in vertical strip then I figured my worry is not justifiable.  Am I missing something?


I am anxious to hear for your input.


Thanks in advance.  I will appreciate it.



ASQuilalaJr., P.E.