HomeMy WebLinkAboutMiscellaneous - 1423 SALEM STREET 4/30/2018 (76) Buoyancy Calculation HANCOCK
Project: 1423 Salem Street, Project No. 9302
North Andover
Owner,: Michael&Elaine Morgillo
Date: 10-Jan-01
Structure: 1500(H-IO/Mon.) Gallon Dosing Chamber
Parameter Unit Value Comment
finish grade EL 92.7
Inlet invert EL 89.8
outside top of structure EL 90.9
outside bottom of structure EL 85.2
Estimated Seasonal High Groundwater EL 90.2
structure outside diameter FT 0.0
structure outside length FT 10.8
structure outside width FT 5.7
structure footprint SF 61.4
weight of structure LB 11,035
#of manholes # 2
manhole diameter FT 2
top of manhole EL 92.2
weight of ballast* LB 0 0.0' of concrete in bottom of tank
unit weight of soil cover** PCF 115
weight of soil cover LB 11,899
weight of water displaced(structure) LB 19,120
weight of water displaced(ballast) LB .0
NET FORCE LB 3,814
(negative number indicates floatation possible)
Factor of safety 1.20 (Does not include weight of extention collars
or frame and cover)
Station assumed totally dry inside.Neglect weight of equipment inside and outside soil friction force.
**Neglect weight of soil over ballast.
Page 1 of 1 CRO 05/01/2002