tuburi din beton precomprimat
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Precast Concrete Pipe and BoxPrecast Concrete Pipe and Box
Culverts for Storm WaterCulverts for Storm Water
Management StructuresManagement Structures
Tyson H Hicks, PE
Rinker Materials
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Why rainwater harvest?Why rainwater harvest?
NPDES Phase II Regulations
Provides supplemental water for non-potable uses.
Mitigates urban flooding.
Recharge ground water.
Provides sustainability
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nonnon--potable usespotable uses
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Provides supplemental water forProvides supplemental water for
nonnon--po a e usespo a e uses
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ga es r an oo ngga es r an oo ng
Many communities require some type of onsite
ra nwater storage. orma y, t e storage s es gne to
accommodate the difference between the pre and post
develo ed rainfall runoff
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ga es r an oo ngga es r an oo ng
systems utilized in stand alone or in
conjunction with storm water ponds
helps control flooding.
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Sustainability seeks to balance theSustainability seeks to balance theeconomic, social and economiceconomic, social and economicimpacts, recognizing that populationimpacts, recognizing that population
rowth will continue. Sustainablerowth will continue. Sustainableinfrastructure builds the facilities andinfrastructure builds the facilities and
structures we need today withoutstructures we need today without
futurefuture
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SS Credit 6.1 & 6.2 : Storm Water Design, Quality ControlIntent: Limit disruption of natural water hydrology by reducingimpervious cover, increasing onsite infiltration, reducing oreliminating pollution from storm water runoff.
WE Credit 1.1 & 1.2 : Water Efficient LandscapingIntent: Limit or eliminate the use of potable water or other
near the project site for landscape irrigation.
WE Credit 2.0 : Innovative Wastewater Technologies
demand while increasing the local aquifer recharge.
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Precast Concrete Pipe and Box CulvertPrecast Concrete Pipe and Box Culvert
Structures for Underground CisternsStructures for Underground Cisterns
AdvantagesAdvantages: Land above has
alternate uses.
Pollution removal-
SWQ-BMPs
Maintainable
ruc ura y oun Minimizes Risk
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DESIGN CONSIDERATIONSDESIGN CONSIDERATIONS
Storage Volume Vs Available Space.
Structural Design at Shallow Depths.
.
Access for Periodic Inspection and
Maintenance. Design Life & Risk of Premature Failure?
Cost per CF of storage.
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recas n ergroun ys ems a e enserecas n ergroun ys ems a e ense
100 year design life
o spec a ac requ rements.
No floatation possibilities
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Easily Constructed
Environmentally Friendly- All NaturalMaterials-No chlorides,ethylene's,zincleaching into the soil.
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What makes our precast concrete pipe
and box culvert sections advantageous?
Simplicity
Speed of Installation Local Suppliers Non- atented ASTM Specifications
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Review:
ys em oo pr n .
Pipe Heights of Cover.
Site Restraints- R.O.W.s,Property Lines, Building
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Locations, Utilities, etc.
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One recast i e or Box Culvert canequal the area of 2-3 flexible pipes?
Reduce number of i e runs andshorten lengths - (Savings onexcavation- backfilling-time of
Installation-environmental impact). See if a precast box culvert would do
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the trick.
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Review the i e la out.
Review footprint and calculate the
excavation and backfill savin s.
This alone will result in significantsavin s.
Inquire on pipe-system price.
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Example Project- Shows the
vantage
Project has two separate underground detention systems tostore storm water.
Both systems were designed using 3 lines of 36 Flexible x104 with manifold/headers each end.
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- - x =
Simplify the fittings
Consider saddle-tee structuresEnd-Caps
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Ste 2 & 3Ste 2 & 3
Installation
Savings
17 x 5x 105=8,925 ft3
select backfill
with Flexible Pipe.
70% additional
trench width.
11--60 Elliptical RCP60 Elliptical RCP
www.concrete-pipe.org 10 x 3 x 112=3,360 ft3
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Franklin Site Photos
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3 Saddle Tees
3 Precast Inlet/Outlet
Structures
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Inlet Structure
& Hydraulic Shape
Forever.
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- -Franklin, TN
Project has two separate underground BMPdetention systems to store storm water.
Both systems were designed using 6 lines of 60 .
Volume needed 35,300 ft3
Limiting Factor was existing invert of existingstorm pipe in ROW that system would tie.
This fixed invert meant 5 max pipe height (dia.)
.
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The Original Layout of 60 Flexible PipeThe Original Layout of 60 Flexible Pipe
Two I ent ca Systems Separate y Roa way
6 Lines Each - 60 x 160
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Two S stems S lit b Road6 Lines 60 RCP x 152 EACH
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Franklin, TN
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MANWAY/INSPECTION PORTS
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Equalization Piping
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Manifold & Manway Access
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Horizontal La out Flexibilit Horizontal La out Flexibilit
By USING BENDSBy USING BENDS
BENDS PROVIDE Flexibility in layout
Miss Trees!!!!
Follow Critical
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a e w u eaa e w u ea
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The University of Kentucky Dorm Expansion
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Freedom Center Mall
e eve opmen ro ec
254, 680 gallons
Rainwater used to flush toilets and
irri ation
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Storm Drainage
Culverts
Bridges
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Parkridge Hospital Phase 1
a anooga,
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3 cells of 6 x 3
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Boxes connected to each other
All Holes/Weir Slots
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Cut on Site. onnect w t equa zat on p pes.
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Parkridge Phase II
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Twin 8 x 3
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Detention System
Ford Dealership
Total of 312 feet.
,
Double line of 6 x 4 (2 @ 156)
Total installation time - 5 da s 2 days of excavation.
1 da to re are sub rade & install
bedding. 2 days to install & backfill.
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Knoxville--Total of 312 feet.ou e ne o x
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3-10 Pipe Connections For Flow Equalization
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- anways e
4 Endcaps, 1 with Outlet Control Flow Openings
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Backfill Placed withBackfill Placed with
g t ac neryg t ac nery
All Boxes Set In 1 1/2 Days.
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Backfill Completed By End Of 2nd Day, Ready For
Pavement.
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Westshore Yacht Club, Tampa FL
,
256 feet of 10x4 RCB with removable tops
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ox u vertox u vert
,
whereas pipe systems may require deeperburial. Design for shallow
cover w t - oa ng.
storage is competitive
with other systems
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Why Use Concrete for Your
Underground Detention System?
ruc ura n egr y
Maximize Land Use and Your Investment
Always a Superior Choice to Flexible Pipe
Reduce Financial Risk
True Environmental Benefits
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THANK YOU FOR YOUR TIME!!
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