Weeping tile design
Weeping tile design
(OP)
Been asked to conceptually design a weeping tile around a large (1000x750' or 325x230m) warehouse. Any suggestions as to where I should start?
Thanks in advance!
Chris
Thanks in advance!
Chris





RE: Weeping tile design
I'll post my notes for drainage, later.
Dik
RE: Weeping tile design
RE: Weeping tile design
If this is for roof runoff from collectors or downspouts, I'm not a fan of "hiding" the runoff. If an underdrain becomes clogged (and with silty sand surrounding it, there's a good chance of that), the water will backup and cause damage to the downspouts, the roof, or the structure.
I would create a series of "dry wells" lined with filter fabric and filled with gravel at or near each outlet and let the water drop into there.
RE: Weeping tile design
My ignorance comes to the fore: dik said "300' max run with laterals at 100' max": what is a lateral? I cannot connect the weepers to the on-site storm sewers, as I'm designing parking lot storage: there's no free outlet. "300' max run" means that I could go 600' between sump pumps??
Thanks again!
Chris
RE: Weeping tile design
Laterals are the drain tiles connecting the perf pipes to the sump (or, free drainage).
I usually determine the number of sump pumps from the water condition and/or the size. If problem water, then I often use 2 for redundancy, even for a small area.
The longer the run, the deeper the trench excavation and you should keep this above the lowest point of discharge <<++G++>>.
The attached are part of my General Notes (now over 300k in size). They are modified for each project and, depending on the use, have been upgraded for [Imperial | Metric]
Good luck...
Dik