HomeMy WebLinkAboutBuoyancy Calculations MORAN ENGINEERING ASSOC., LLC
941 Main Street, P.O. Box 183, South Harwich, MA 02661
Daniel P. Croteau, PE (508)432 2878
Richard Judd, RS
FAX (508) 432-3501
Mo2nEng@gmail.com
Town of Yarmouth Health Department
1146 Route 28
South Yazmouth, Ma 02664
Re: 124 Pawkanawkut Drive 7/ 4/2015
South Yazmouth, Ma
(To accompany Septic Design Plan, Project: 10-130, dated: 1/14/15,rev. 7/14/15)
BUOYANCY CALCULATIONS
1500 GALLON SEPTIC TANK-Monolithic-H10 (Shorey Precast Concrete Products)
High Groundwater Elev. -Bottom of Tank = Submerged Depth
El. 1.4 - El. -2.0 = 3.4'
Submerged Volume x Weight of Water = Buoyancy
10.2'x 6.1'x 3.4' x 62.43 lbs/cf = 13,2071bs T
Tank Weight (empty)per Shorey Co. Specs. = 11,833 lbs �-
Soil Cover Ballast=(10.2'x6.1'-2x�1'xl')x(EI.5.0-E13.7)x 801bs/cf= 5,8171bs
Effective High Groundwater Tank Wt. = 11,833 lbs+ 5,8171bs— 13,2071bs =4,443 lbs �
1000 GALLON PUMP CHAMBER-Monolithio-HlO (Shorey Precast Concrete Products)
SN OF MqS
High Groundwater Elev. -Bottom of Tank = Submerged Depth ��`�'" Sac
. El. 1.4 - EI. -23 = -3.7� �o DAPIEL 'S'Gm
o CROTEAU -''+
�' CIVIL `"
Submerged Volume x Weight of Water = Buoyancy q No. 46253 4
8.25' x 5.5'x 3.7' x 62.431bs/cf = 10,481 lbs T p°�RF�rsTEa��a``�
�i - �SS�ON E�G
o�.,�+
Tank Weight(empty)per Shorey Co. Specs. = 9,2001bs �-
Soil Cover Ba11ast= (8.25'x5.5'-�Pxl'- �13'x1.3')x(EI.5.0-EI3.4)x 801bs/cf=4,7261bs
Effective High Groundwater Tank Wt. =9,200 lbs+4,7261bs— 10,481 lbs= 3,4451bs �
Civil Engineering • Land Surveying