RCP to Existing Junction Chamber 1

[RFreund]

What does the connection of a new RCP to an existing Junction Chamber look like?
This would be a situation where a new hole is cut into the existing Junction chamber and the new 72" RCP connected to the junction chamber (about 16'x16').

Sorry if this is basic but I'm just trying to understand what this typical detail looks like. Even for new construction.

Thanks

EIT

http://www.HowToEngineer.com

 

[gbam]

I would say the outside diameter of the RCP (7.16', "B" Wall) is too large to not evaluate the chamber wall for the structural integrity. Without alot of detail the hole needed for the connection will interupt too much reinforcing steel on the chamber. I would have a structural engineer evaluate the best approach.

 

[bridgebuster]

Typically, the opening is around the pipe is closed up with bricks. I would suggest grouting a cradle below the pipe rather than trying to brick it up.

 

[cvg]

never heard of "bricking", we use a concrete collar, usually reinforced for something this large or even for small pipes. depends on the design and loading on the structure. structural engineer is recommended

 

[RFreund]

Thanks for the input.

I'm trying to understand what the typical connection looks like between the pipe and the wall of the chamber for a retrofit condition or even new construction. Is there typicall just grout between the pipe and the wall or is there some other sort of connection with usually ties the two together?

EIT

http://www.HowToEngineer.com

 

[bridgebuster]

RF -Take a look at the attach. It's a NYCDEP standard sheet for new pipe installation in a new catch basin. Typically on NYCDOT or NYSDOT projects a 3" annular space is left around the pipe (although sometimes we have to deal with larger openings), then it's grouted or bricked after the pipe is installed. The pipe is placed flush with the inside face of wall. Bricks, conforming to ASTM C936, are the most common way of sealing the gap.