Soil arching effect on pipe endcap? [X-POST: Earth Retention Engineering]
Soil arching effect on pipe endcap? [X-POST: Earth Retention Engineering]
(OP)
Hello all,
Hopefully simple question with simple answer:
I'm considering capping a 60" pipe with a CMU wall. The pipe inv is approx 20ft below grade. Now, what should I assume are the pressures acting on the CMU wall? Will there be a soil arching effect against the wall, in that, only a relatively small conical section of soil will effect the wall? Similar to the arching effect of soldier piles.
Your input is appreciated.
Thank you
Hopefully simple question with simple answer:
I'm considering capping a 60" pipe with a CMU wall. The pipe inv is approx 20ft below grade. Now, what should I assume are the pressures acting on the CMU wall? Will there be a soil arching effect against the wall, in that, only a relatively small conical section of soil will effect the wall? Similar to the arching effect of soldier piles.
Your input is appreciated.
Thank you





RE: Soil arching effect on pipe endcap? [X-POST: Earth Retention Engineering]
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RE: Soil arching effect on pipe endcap? [X-POST: Earth Retention Engineering]
RE: Soil arching effect on pipe endcap? [X-POST: Earth Retention Engineering]
RE: Soil arching effect on pipe endcap? [X-POST: Earth Retention Engineering]
RE: Soil arching effect on pipe endcap? [X-POST: Earth Retention Engineering]
Arching occurs when there is a difference of the stiffness between the installed structure and the surrounding soil. If the structure is stiffer than the soil then load arches onto the structure. Otherwise, if the structure is less stiff than the soil then load arches away from the structure. Vincent T. H. CHU
Contractors routinely cap deep pipes and underground storm structure openings with unreinforced brick and CMU which would readily fail if full depth earth pressure is used.
CVG's detail (source and complete document unknown...CVG can you provide?) shows the plug as a function of only pipe size regardless of depth and unreinforced...though it's unknown whether the plug is sized for max depth burial but likely not as it's not a function of pipe class either (higher class pipes can be buried deeper).
Can anyone else weigh in?
RE: Soil arching effect on pipe endcap? [X-POST: Earth Retention Engineering]