Doug Leitch and Dominic Turner for ‘Armtec Engineering’s Top Picks! – Case Studies & Design Review!’ the exciting conclusion to our 2016 webinar program! This will be an in depth look at the design and installation challenges and solutions of major drainage projects. The projects discussed will feature both Engineered Steel and Surface Trench drainage products and will review the design theory behind the designs as well as the selection criteria and final installation challenges and procedures. Hosted by Professional Engineers, join us to learn why the owners and consultants of the featured projects used the solutions they did!

1. Dominic Turner, Ing./Eng.
National Sales Engineer
Armtec
Drainage Solutions
Frank Klita
Senior Sales Representative
Armtec
Drainage Solutions
Dominic Turner, P. Eng./Ing.
Regional Engineer / National
Product Coordinator –
HAURATON Products
Armtec
Drainage Solutions
Doug Leitch, P.Eng.
Manager -
International Sales
Armtec
Drainage Solutions
FRIDAY DECEMBER 16, 2016 / 9AM PST / 11AM CST / 12PM EST
TECHNICAL WEBINAR
ARMTEC ENGINEERING’S TOP PICKS!
CASE STUDIES AND DESIGN REVIEW

2. YOUR HOST
Janine Yetke
Director of Marketing
Armtec, Drainage Solutions
LinkedIn: ca.linkedin.com/in/janineyetke/en
Email: Janine.Yetke@armtec.com

3. CPD CREDIT CERTIFICATES
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Informal
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Email your complete attendee list should there be multiple individuals
viewing the same screen:
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• Title
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webinars@armtec.com
Armtec will send certificate to all participants

4. Armtec is one of Canada’s
largest infrastructure
company supplying
precast, corrugated steel
and HDPE products and
solutions. Every day, our
proven products,
engineered solutions
and dedicated people are
counted on to support
construction and
infrastructure projects in
communities everywhere.
With a national presence
and a local focus on
exceptional customer
service, we are dedicated
to building excellence.
Drainage Locations
Precast Locations
40
Actual 2016
Locations
ABOUT ARMTEC

5. SECTORS
Armtec specializes in all infrastructure markets and segments and can help with any project to ensure you
have the right products for the job. Our people have extensive experience and access to resources all across
the country, and can help with all facets of product selection, installation and support.
Stormwater Solutions
Mining & Energy
Commercial & Retail
Constructions
Transportation Underground & Utility
Infrastructure
Sports & Entertainment
Institutional Construction Industrial Construction Agriculture
Commercial & Residential
Landscaping
Forestry Residential & Hospitality
ABOUT ARMTEC

6. Armtec Drainage Solutions’ centralized engineering
department consists of design engineers, a drafting team,
and estimators.
Additionally, professionally licensed Regional engineers are
located in all Market Areas across the country.
DRAINAGE ENGINEERING SUPPORT & ROLES
ABOUT ARMTEC

7. YOUR SPEAKERS
Dominic Turner P.Eng./Ing.
Regional Engineer / National Product
Coordinator – HAURATON Products
Armtec, Drainage Solutions
Dominic.Turner@armtec.com
Doug Leitch P.Eng.
Manager - International Sales
Armtec, Drainage Solutions
Doug.Leitch@armtec.com

8. TOPICS
Armtec Engineering’s Top Picks!
• Linear Drainage System for Viau Terminal
 Project Requirements
 Hydraulic Design and System Selection
 Installation Process
 Challenges faced during installation
• Great Allegheny Passage
 Background
 Design Requirements and Selection Process
 Installation
 Economic Benefits

9. Armtec Engineering’s Top Picks!
Case Studies and Design Review
LINEAR DRAINAGE SYSTEM FOR
VIAU CONTAINER TERMINAL

10. Armtec Engineering’s Top Picks!
Case Studies and Design Review
LINEAR DRAINAGE BASICS

11. LINEAR DRAINAGE – APPLICATIONS

12. LINEAR DRAINAGE – APPLICATIONS

13. MODULAR TRENCH DRAIN COMPONENTS
Catch basin
Length: 0.5 m
End cap
outlet
Locking bar
Channel
Assembly: Trench drain
Length: 1m (or 0.5 m)
Grate
End cap

14. Point Drainage
• Water is intercepted at low points
through catch basins
• Catch basins are connected to an
underground storm sewer pipe
Use
• Drainage areas with steep gradients
• Catch basins installed against a curb;
with sloping pavement
• Often used in conjunction with linear
drainage system
POINT DRAINAGE

15. Potential Issues of Point Drainage:
• Costly; complex, time-consuming installation
• Impractical; uneven surface
• Inefficient performance; ponding and blockages
• Increased maintenance costs; poor access,
extra structures
• Deeper pipe inverts; conflict with underground
services
POINT DRAINAGE ISSUES

16. Linear Drainage
• Water is intercepted along the entire
trench drain run
• The interception rate of linear drainage
is greater than point drainage
Use
• Cost effective; less pipe work
• Large impervious pavements
• Level or nearly level surfaces
• Cut off drain; interception on steeper
slopes
LINEAR DRAINAGE

17. LINEAR DRAINAGE BENEFITS
Benefits:
• More efficient at intercepting runoff water
• Ponding is reduced or eliminated
• Shallow depth of construction
• Grading is straightforward
• More economical (fewer manholes, less
pipe, faster installation)
• Easy access along the entire length of
the linear drainage system
• Eliminates the “roller coaster” effect for
vehicular traffic
• Aesthetic solution

18. PROJECT OVERVIEW
Rehabilitation of the Viau Terminal
Owner: Montreal Port Authority
Designer: Cima+
Contractor: Roxboro inc.
Location: Port of Montreal, QC
Construction: 2016

19. Armtec Engineering’s Top Picks!
Case Studies and Design Review
VIAU TERMINAL
PROJECT REQUIREMENTS

20. PROJECT REQUIREMENTS

21. PROJECT REQUIREMENTS

22. PROJECT REQUIREMENTS
Requirements of the Drainage System:
• Efficient solution to drain two on-dock intermodal terminals
• Surface with no gradient
• Very small possible drop between upstream and downstream end
• Easy access for maintenance
• Single outlet for each system
• Heavy live loads

23. Armtec Engineering’s Top Picks!
Case Studies and Design Review
VIAU TERMINAL
HYDRAULIC DESIGN & SELECTION
PROCESS

24. SYSTEM SELECTION
RECYFIX® HICAP® F Slot Drain
• High capacity system
• Clear opening: 300 and 680mm
• Length of the system: 400m (x2)
• 1metre long sections (F680 = 1.14m long)
• Polypropylene body
• Ductile iron grate
• Rated for F900kN loading
RECYFIX® HICAP ® F300
RECYFIX® HICAP ® F680

25. RECYFIX® HICAP® COMPONENTS

26. HYDRAULIC DESIGN
Formulas
• Rational Method
Q = kCIA
• Manning’s Formula
V = 1/n * Rh
2/3 * S1/2
• Energy Equation
𝒑 𝟐
𝜸
+
𝑽 𝟐
𝟐
𝟐𝒈
+ 𝒛 𝟐 =
𝒑 𝟏
𝜸
+
𝑽 𝟏
𝟐
𝟐𝒈
+ 𝒛 𝟏 + 𝑯 𝑳

27. HYDRAULIC DESIGN
Inputs from Design Engineer
Hydraulic parameters
 Catchment area 400x20m and 400x7m
 Run-off coefficient 0.9 (Asphalt)
 Slope 0%
 Design rainfall intensity 115mm/h
Information provided by Armtec
• Recommended trench drain model
• Flow rate at the outlet
• Hydraulic grade line in the trench drain

28. RECYFIX® HICAP® F 300

29. RECYFIX® HICAP® F 680

30. Armtec Engineering’s Top Picks!
Case Studies and Design Review
VIAU TERMINAL
INSTALLATION

31. EXCAVATION & FOUNDATION

32. EXCAVATION & FOUNDATION

33. CONCRETE BASE

34. CONCRETE BASE

35. CONCRETE BASE

36. CONCRETE BASE

37. CONCRETE BASE

38. TRENCH DRAIN SECTION LAYING

39. TRENCH DRAIN SECTION LAYING

40. TRENCH DRAIN SECTION LAYING

41. FORMWORK

42. FORMWORK

43. FORMWORK

44. FORMWORK

45. LATERAL CONCRETE POUR

46. LATERAL CONCRETE POUR

47. LATERAL CONCRETE POUR

48. FORM STRIPPING

49. Armtec Engineering’s Top Picks!
Case Studies and Design Review
VIAU TERMINAL
FINISHED PROJECT

50. FINISHED PROJECT

51. FINISHED PROJECT

52. FINISHED PROJECT

53. Armtec Engineering’s Top Picks!
Case Studies and Design Review
VIAU TERMINAL
CHALLENGES

54. CHALLENGES
Challenges faced during installation:
• Angle to be done in one trench drain run
• Trench drain interfered with two existing manholes
• First HAURATON trench drain project in Canada

55. ANGLE IN THE TRENCH DRAIN SYSTEM

56. INTERFERENCE WITH TWO EXISTING MANHOLES

57. INTERFERENCE WITH TWO EXISTING MANHOLES

58. SUMMARY
Viau Terminal Linear Drainage System
• Innovative solution
• High capacity trench drains
• 2 stretches of 400m each
• Single outlet at the end of the system
• High performance drainage system
• Perfectly level finished surface
• Installation took 3 weeks/system
• Contractor, designer and customer were
all very satisfied with the product

59. Armtec Engineering’s Top Picks!
Case Studies and Design Review
GREAT ALLEGHENY PASSAGE

60. Armtec Engineering’s Top Picks!
Case Studies and Design Review
REHABILITATION OF THE
PINKERTON TUNNEL FOR
SOMERSET COUNTY RAILS TO
TRAILS ASSOCIATION

61. PROJECT OVERVIEW
• Background and Details
• Selection Process
• Design/Client Requirements
• Installation
• Economic Benefits

62. US Rails to Trails Project
• Abandoned rails lines converted to bike paths
• Great Alleghany Passage - Washington to
Pittsburgh
• Near pretty town of Somerset, Pennsylvania
the trail crosses the Casselman River at the
Pinkerton Tunnel
BACKGROUND

63. Project Details – Pinkerton Tunnel
• 100 year old concrete rail tunnel
• 270 m long - 9 m span x 7.2 m rise
• Spalling concrete walls & ceiling failures
• 3 km long detour of Somerset Trail path
BACKGROUND
Consulting Engineer
Pittsburgh, Pennsylvania
Project Contractor
Columbus, Ohio

64. SELECTION PROCESS
Project and Design Constraints
• Maximize lining size - minimize grout
• No interior obstructions
• Limited site access - land locked
• Rehabilitate roof and side walls
• Meet loading requirements
• Timing - finish by autumn
• Service life
• Low cost

65. SELECTION PROCESS
Meeting the Constraints
Proposal – Structural Plate Re-line with
Polyurethane Grout
• Structural Plate – strength and stiffness
• Structural Plate - shape versatility
• Lightweight – bolted pieces
• Curved to match tight tolerances
• Site access – Casselman River

66. SELECTION PROCESS
No Interior Obstruction
Maximize Lining Size
• Deep Corrugated Structural Plate – Bridge-Plate
• 10X stiffer than conventional structural plate
• Curved and fitted to meet 100-150 mm tolerance
• Assembled in 6 m rings at the structure ends and
slid into place on special footings. The panels
were joined with internal connection plates

67. SELECTION PROCESS
Client/Design Requirements
• Loading- support the new roof and side
pressures from side fill
• Timing - Start tunnel work in May - four
month window to finish September 1
• Design service life 50 to 75 years
• Rails to Trails Association - Non profit
organization

68. SELECTION PROCESS
Site Access
• Site was wedged on sides by steep hills
and both ends by the Casselman River
• Bridge widened to allow for construction
equipment
• Bridge-Plates easily transported across
the bridge ready for assembly

69. SELECTION PROCESS
Loading
• Design Loads – AASHTO LFRD
• Dead load from infill in roof cavity
• Grouting pressure
• Pull tension / Bolt shear
• Governing factor – Structure stiffness

70. SELECTION PROCESS
Timing & Service Life
• May - Mobilization
• June, July - Assembly
• August - Grouting
• DSL – Zinc coating plus sacrificial steel

71. • Loading / Life expectancy-lasting
repair
• Timing – autumn season
promotion for yearly traffic
increase
SELECTION PROCESS
• Site access- light weight materials
and equipment
• Minimum Clearance–grout savings
• No Interior obstruction
simultaneous assembly/grouting
IMMEDIATE ECONOMIC VALUE LONG TERM ECONOMIC VALUE
Putting It All Together – Economic Solution
BRIDGE-PLATE - POLYURETHANE GROUT

72. DESIGN AND INSTALLATION
Pinkerton Tunnel Assembly
• Setting annular space tolerance of
100-150 mm Gannet Fleming laser
measured the tunnel dimension
• The fit was so exact the exterior
bolts of the Bridge-Plate liner barely
scratched the outside walls

73. DESIGN AND INSTALLATION
Pinkerton Tunnel Assembly
• New footings were poured with
galvanized steel channels embedded
to accept the Bridge-Plate
• Geomembrane blankets were placed
behind the footing to collect water
egress through the old wall
• Footing channels were fitted with
lubricated poly sliders

74. DESIGN AND INSTALLATION
Pinkerton Tunnel Assembly
• Six metre rings were assembled
at one end of the tunnel
• Exterior Bridge-Plate bolts were
torqued prior to pulling into
position
• Rings joined by pre-curved steel
internal connections
• Almost three football lengths of
tunnel was assembled in two
months

75. DESIGN AND INSTALLATION
Pinkerton Tunnel - Grouting
• The tunnel roof and annular space was
filled with low density rigid foam
• 20 mm holes drilled and spaced at 1, 3,
9 ,11 and 12 o’clock, then grouted

76. DESIGN AND INSTALLATION
Pinkerton Tunnel -
Grouting
• All grouting was
completed from the
back of a truck
• The two component
polyurethane was
mixed at the nozzle
and released
through the holes.
Coverage was
measured by heat
detection

77. DESIGN AND INSTALLATION
Pinkerton Tunnel – Meeting the Needs
• Normal cement grouting would have required
transport of some 300-500 cement trucks,
barged down the Casselman River and
pumped 150 metres to the release nozzle.
• The strength and stiffness of Bridge-Plate
provided the clear span opening allowing
overlap of assembly and grouting.
• Both Bridge-Plate tunnel and the expanding
grout were strong, lightweight, mobile and
met all design requirements.

78. • Consistent with low cost alterations to
bridge over Casselman River
• Installation required lightweight trucks
• Simultaneous assembly and grouting
• Flowability and expanding capability
filled void
• Speedy install and grout setup
• Met loading and service life needs
• Low cost alternative
ECONOMIC BENEFITS
• Consistent with low cost alterations to
bridge over Casselman River
• Assembly used lightweight equipment
• Simultaneous assembly and grouting
• Ability to shape match existing tunnel
minimized grouting costs
• Speedy assembly matched schedule
• Met loading and service life needs
• Low cost alternative
Bridge-Plate Polyurethane Rigid Foam

79. SUMMARY
Pinkerton Tunnel Rehabilitation
• Bridge-Plate re-line 270 meter long
9m span x 7.2 m rise concrete tunnel
• Maximum space between the reline
and existing 100-150 mm
• Six metre sections were assembled at
end of tunnel and pulled into place
• Rehabilitation completed in three
months. Bridge-Plate liner assembled
in just over two months.
• Very Economical Solution

80. STAY CONNECTED!
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81. Contact Your Local Sales Rep:
www.armtec.com/sales-offices/
Todays Speakers:
Dominic.Turner@armtec.com
Doug Leitch
Doug.Leitch@armtec.com
Dominic Turner