Why raise the ground level and THEN dig trenches for pipes when you can just bury them?
Why raise the ground level and THEN dig trenches for pipes when you can just bury them?
(OP)
My company is reclaiming an old quarry for real estate development and a storm water bypass sewer system consisting of 84" RCP needs to be installed. I don't understand why they are going to fill the quarry up with soil first to the proposed ground elevation and then go back to dig trenches up to 25ft deep for the pipes to rest in. Whats wrong with laying out the sewer system first at the correct elevation and then burying the whole thing in soil?





RE: Why raise the ground level and THEN dig trenches for pipes when you can just bury them?
RE: Why raise the ground level and THEN dig trenches for pipes when you can just bury them?
RE: Why raise the ground level and THEN dig trenches for pipes when you can just bury them?
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"Is it the only lesson of history that mankind is unteachable?"
--Winston S. Churchill
RE: Why raise the ground level and THEN dig trenches for pipes when you can just bury them?
If you placed the pipes and then placed the fill, unless the pipes are founded on the floor of the quarry; the pipes will settle. Depending on the depth of the quarry/thickness of fill to be placed the amount of settlement could be measured in feet. Also, unless granular material is being used to fill the quarry, the settlement will continue for years.
I've see very few filled in quarries that can be used for future developement.
Mike Lambert
RE: Why raise the ground level and THEN dig trenches for pipes when you can just bury them?
RE: Why raise the ground level and THEN dig trenches for pipes when you can just bury them?
RE: Why raise the ground level and THEN dig trenches for pipes when you can just bury them?