dzidzernavank school project part-i armenian engineers and scientists of america (818) 547-3372...
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Armenian Engineers and Scientists of America
www.aesa.org
(818) 547-3372
Civil Engineering Committee
Dzidzernavank SchoolDzidzernavank SchoolProjectProjectPart-IPart-I
Designed for 50 Students and Office Personnel of the Dzidzernavank Village Dzidzernavank Village School in Kashatagh, Artcakh – ArmeniaSchool in Kashatagh, Artcakh – Armenia
Designed By: Hrand Safarian, P.E. (CE) State of [email protected] Phone: (818) 708-0864
Design Date: June 21, 2008
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PSD-Tsitsernavank, Continue June 21, 2008 Revision:
CODE REFERENCES AND DESIGN SOURCES :* City of Los Angeles Building Code –LABC and City of Los Angeles
Plumbing Code-LAPC* City of Los Angeles Amendments for the 2007 California Plumbing
Code-CPC Appendix K- Private Sewage Disposal Systems* International Private Sewage Disposal Code-IPSDC International Code Council –ICC* Other Counties Codes. * Civil Engineering Design Data Book.
CONTENTS :GENERAL INFORMATION - Received from Site : Tsitsernavank Village and School Photos. Proposed PSD Site Location and Soil Type.
PART-I : SEPTIC TANK CAPACITY DESIGN: CRITERIA , SIZE, SHAPE AND DETAILS .
PART- II : DESIGN CRITERIA AND GENERAL NOTES.
PART-III : SEPTIC TANK STRUCTURAL DESIGN : MATERIAL , DETAILS AND SKETCHES.
PART- IV : SEEPAGE PITS or /and DISPOSAL FIELD/LEACH LINES DESIGN: W/SKETCHES
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Proposed Toilet Room Location
Proposed PSD Location
The present School BuildingsBeing Renovated
Homes
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50% Clay – 50% Sand50% Clay – 50% Sand
60% Sand- 40% Conglomerate of: 20% Clay, and 20% dirt
80% Rocks (big and small)20% Conglomerated dirt
4Meters
30 cm
250cm
120cm
Ground Composition at the PSD Vicinity
Ground Surface
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200 Meters
350 Meters
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PART-I : SEPTIC TANK CAPACITY DESIGN: CRITERIA , SIZE, SHAPE AND DETAILS .
Hrand’s Preliminary Provided Guide Dated March 14, 2008: Page: PI 1-3
Septic Tank Design Criteria: 2008 City of Los Angeles Plumbing CodeAmendments for the 2007 California Plumbing Code: Page : PI 4-7
SEPTIC TANK- DESIGNED. DETAILS & SKETCHES: Page: PI 8-8
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PSD-SEPTIC TANK CALC’S
Liquid Capacity:
Each Student : 20 Gallons (76 liter) Waste per day Assumed 50 students and office members x 20 Gals/day= 1000 gals (3785 liter)
1000x 1.5 = 1500 gals ( 5678 Liter / 5.7 cubic meter)
Assume the inside septic tank liquid: 4’wide x 5’ depth 10’ long= 200 cubic foot
200x 7.48/gallon/cubic foot= 1500 gallon (5.7 cubic meter) OK
Add 12” on top of liquid.
Septic Tank inside dimensions : 4’x6’x10’ (1.22x1.83x3 M)
Exterior dimensions: 5’x7’x11’ ( 1.52x2.13x3.35 M)
24” or 2’ ( 61 CM) Soil on top.
The depth is 9’ (2.74 M)
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