ENGINEERED RETAINING WALLS

Transcription

1 ENGINEERED RETAINING WALLS

2 IT S NOT JUST ABOUT THE WALL

3 IT S NOT JUST ABOUT THE WALL A great Engineered SRW should provide a beautiful aesthetic that blends subtly with the environment & surrounding architecture Instead of Overpowering It

4 IT S NOT JUST ABOUT THE WALL Risi Stone is the original pioneer of the SRW (Segmental Retaining Wall) Optimal choice of Engineers, Designers & Landscape Architects Longest proven track record of durability & structural stability (over 25 years)

5 OUR DESIGN SIMPLICITY GUARANTEES PERFORMANCE

6 OUR DESIGN SIMPLICITY GUARANTEES PERFORMANCE Risi Stone Engineered walls are designed to ensure critical Structural Properties will always be there: Block Unit Weight Shear Strength Block/Grid Connection Strength Wall Alignment

7 OUR DESIGN SIMPLICITY GUARANTEES PERFORMANCE Risi Stone Solid Block With Tongue & Groove Hollow Core Block Representation of improper installation

8 THE SOLID CHOICE

9 THE SOLID CHOICE Integral Tongue with Split-Key Solid Body Guarantees Unit Weight & maximum Shear Strength Integrated Hand-hold Perfect Height Tolerance Example: Pisa2 retaining wall system Superior Geogrid Connection Integral Offset Groove for Auto-Alignment

10 SOLID ADVANTAGES Solid Blocks Provide greater durability Excellent freeze/thaw durability More resistant to breakage & minor damage

11 SOLID ADVANTAGES Solid Blocks No hollow cores to fill with gravel & compact Ensures maximum weight of each block is present Maximum resistance to overturning Reduced installation time & labour costs

12 SOLID ADVANTAGES Modular System Wall is flexible, while still retains its structural integrity Absorbs movement & settlement Requires minimal embedment

13 SOLID ADVANTAGES Modular System Array of complementing special blocks Easy to create site-specific features Coping can be selected for various wall arrangements Pre-fabricated corner blocks intensify corner strength & appearance, while speeding construction

14 SOLID ADVANTAGES Interlocking Tongue & Groove Interlocking mechanism is molded directly into the block Easy, quick installation No separate pins, clips or connectors to install

15 SOLID ADVANTAGES Interlocking Tongue & Groove Maximum shear strength Shear strength is maintained along the entire length of block Allows for superior geogrid connection

16 SOLID ADVANTAGES Interlocking Tongue & Groove Automatic alignment & self-battering Once the first course is installed flat and level, successive blocks stack quickly & easily Blocks are dry-stacked Lower cost No mortar requirements Minimal training is required to achieve excellent results

17 SOLID ADVANTAGES Interlocking Tongue & Groove Continuous interlock achieved throughout the wall Creates a stronger, more damage-resistant structure

18 SOLID ADVANTAGES Combined with Geogrid Reinforcement Higher walls can be achieved Able to use the same facia throughout the project on lower & higher walls (ie. Mix gravity & geogrid reinforced wall as site conditions dictate)

19 THE SOLID CHOICE Risi Stone Solid blocks deliver benefits to all stakeholders Provides Engineers with the assurance of guaranteed structural properties Contractors appreciate saving time & the ability to modify blocks on site Long term performance & nearly double compressive strength of competitors is important to Owners

20 WE RE BIG BUT STILL VERSATILE

21 WE RE BIG BUT STILL VERSATILE Risi Stone was the first to envision the potential of a Large Block SRW Benefits of machine-placed walls include added strength, stability & durability Comprehensive Design Flexibility & usage efficiency All products are dimensioned for max versatility

22 HEIGHTENED ECONOMICS

23 HEIGHTENED ECONOMICS Designed to optimally address grading issues Blocks range in depth from 250mm (9.8 ) to 1830mm (72 ) Change from a Gravity Wall to a Reinforced Wall without altering final appearance

24 HEIGHTENED ECONOMICS Single Depth Gravity Battered Up to 1.8m / 6.0 Vertical Up to 1.5m / 5.0

25 HEIGHTENED ECONOMICS Multi Depth Gravity Battered Up to 3.0m / 10.0 Vertical Up to 2.8m / 9.0

26 HEIGHTENED ECONOMICS Geogrid Reinforced Battered Over +12.0m / Vertical Over +12.0m / +39.0

27 HEIGHTENED ECONOMICS DuraHold Crib Crib Up to 5.5m / 18.0

28 SERIOUSLY FAST INSTALLATION

29 SERIOUSLY FAST INSTALLATION Increased productivity, decreased labour costs Consistent installation rate (no labour fatigue) Patented Triple Clamp Install 3 Blocks / 7.25 Sq.ft. per cycle Typical installation rate Sq.ft per day

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31 SIENASTONE Able to create versatile design details (steps/handrails,etc) Erected utilizing light construction equipment Single depth (333 or 500 units), Multi depth (925 units) or Geogrid reinforced Easy change from gravity wall to reinforced wall at any point without altering the overall appearance

32 SIENASTONE Block Types Standard 500 (570 lbs) Corner 45 Corner Coping Coping Corner

33 SIENASTONE Applications Max. Height* Gravity Wall Max. Height Geogrid Reinforced Min. Curve Radius Inside & Outside Stack Alignment Vertical / Battered 333 N / A m / 4.8' m / 9.0' m / +30' m / +30' 925 N / A m / 240' m / 240' 925 N / A Handrail Coredrill Min. Depth 650mm / 25.5" *Values may vary based on site conditions. Higher wall up to 4.0m/13' may be achieved by combining block types.

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35 SONOMASTONE The ultimate combination of design aesthetics, economics & efficiency Corniced smooth-faced coping unit accentuates the rough texture of the wall for an elegant appearance Seamlessly incorporate tight curves (4.25m/14 radius) Single depth (375 units), Multi depth (750 units) or Geogrid Reinforced

36 SONOMASTONE Block Types Standard 375 (385 lbs) 750 Tapered Corner Coping Coping Tapered

37 SONOMASTONE Applications Max. Height* Gravity Wall Max. Height Geogrid Reinforced Min. Curve Radius Inside & Outside Stack Alignment Vertical / Battered m / 4.8' m / 9.0' m / +30' 750 N / A Taper (3.5/4.3m)/(11.5'/14') m / 240' 750 N / A Handrail Coredrill Min. Depth 650mm / 25.5" *Values may vary based on site conditions. Higher wall up to 4.0m/13' may be achieved by combining block types.

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39 DURAHOLD Immense block, ideal for demanding & complex projects Smooth texture = reduce water (flow) friction Perfect for water applications (lakes, rivers, detention ponds & canals) Single depth Conventional, Geogrid Reinforced & Crib

40 DURAHOLD Block Types Standard (1745 lbs) Half Tapered Tie Back 90 Corner 45 Corner Coping Half Coping

41 DURAHOLD Applications Max. Height* Gravity Wall Max. Height Geogrid Reinforced Min. Curve Radius Inside & Outside Stack Alignment** Vertical / Battered Std 2m / 6' Crib 5.5m / 18' Std Crib +9m / +30' +9m / +30' Std 82m / 269' Taper 20m / 66' Handrail Coredrill Min. Depth 460mm / 18" *Values may vary based on site conditions **Half Tapered blocks cannot be constructed vertical when used in a curve

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43 DURAHOLD2 Identical in final appearance to DuraHold Reduced block depth makes it an economical solution for lower walls and less demanding applications Utilize on a project in conjuction with Durahold for cost savings while maintaining visual flow Straight Gravity walls, Geogrid Reinforced & Crib

44 DURAHOLD2 Block Types Standard (982 lbs) Tie Back Coping 90 Corner

45 DURAHOLD2 Applications Max. Height* Gravity Wall Max. Height Geogrid Reinforced Min. Curve Radius Inside & Outside Stack Alignment Battered Std 1m / 3' Crib 5.5m / 18' Std Crib +7m / +23' +7m / +23' Std 82m / 269' Handrail Positioned in Sonotube behind wall *Values may vary based on site conditions

46 VERSATILITY WELL-HANDLED

47 VERSATILITY WELL-HANDLED Risi Stone hand-placed block SRW s include Pisa2, RomanPisa and Rivercrest Allow for tight curves, meandering contours & intricate details Can enable wall heights of over 6m (18 ) when combined with geogrid Ideal for versatile design projects such as retaining or garden walls, seat walls, pillars & steps

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49 RIVERCREST Natural, versatile & easy-to-use, awarding winning landscape wall system Over 150 distinct real stone textures achieve a natural, random appearance no installation patterns to follow The engineered S-Shape design automatically creates vertical & lateral interlock for added strength Ideal for curved or straight retaining, garden & seat walls, pillars, planters and tree-rings

50 RIVERCREST Block Types Standard No. 1, 2, 3 & 4 Jumper No. 1, 2, 3 & 4 Long Corner Short Corner Jumper Corner Coping

51 RIVERCREST Applications Max. Height* Gravity Wall Max. Height Geogrid Reinforced Min. Curve Radius Inside & Outside Stack Alignment Vertical All 0.6m / 2.0' All 1.8m / 6.0' No.1 0.9m / 2.9' No.1&3 1m / 3.4' All 1.4m / 4.5' Handrail Positioned in Sonotube behind wall *Values may vary based on site conditions

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53 PISA2 The original SRW that started it all over 25 years ago Versatile, structurally stable & simplistic installation combined with contactor friendly design features Ideal for curved or straight walls, steps, planter & pillars Easily create elegant contrasting bands of color/texture with the Pisa2 banding unit

54 PISA2 Block Types Standard Tapered Corner Half Coping Coping Banding

55 PISA2 Applications Max. Height* Gravity Wall Max. Height Geogrid Reinforced Min. Curve Radius Inside & Outside Stack Alignment Vertical / Battered All 1.0m / 3.0' All +7.0m / +23.0' Taper 2.4m / 8.0' Extra 1 1.5m / 5.0' Handrail Positioned in Sonotube behind wall *Values may vary based on site conditions 1 Extra Taper blocks available in some regions

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57 ROMANPISA Specialized process gives a worn cobble appearance Same excellent design flexibility as Pisa2 & can be combined or substituted with any Pisa2 application Ideal for curved or straight walls, steps, planter & pillars Easily create elegant contrasting bands of color/texture with the Pisa2 banding unit

58 ROMANPISA Block Types Standard Tapered Jumbo Half Corner Half Coping Coping Banding

59 ROMANPISA Applications Max. Height* Gravity Wall Max. Height Geogrid Reinforced Min. Curve Radius Inside & Outside Stack Alignment Vertical / Battered All 1.0m / 3.0' All +7.0m / +23.0' Taper 2.4m / 8.0' Extra 1 1.5m / 5.0' Handrail Positioned in Sonotube behind wall *Values may vary based on site conditions 1 Extra Taper blocks available in some regions

60 THIS IS THE CORE OF WHAT WE DO

61 THIS IS THE CORE OF WHAT WE DO Segmental retaining walls are the primary focus of Risi Stone and Unilock. Precise, consistent & reliable manufacturing quality Ready & in-stock - No delays in the supply chain

62 MADE FOR LASTING DURABILITY Blocks are manufactured on the same high capacity machines as paving stones Unparalleled compressive strength & dimensional accuracy All products are manufactured to over 5000 psi (35MPa) Higher compressive strength offers superior freeze thaw durability & performance

63 DOT APPROVED

64 DOT APPROVED A Wide range of Department of Transportation evaluated & approved wall systems Minimum 28-day compressive strength of 35 MPa (5000 psi) Maximum moisture absorption rate of 5% ensuring adequate freeze/thaw durability

65 EVERLASTING BEAUTY INSIDE & OUT Durable Split-Rock texture is very forgiving if accidents happen Ideal for use along municipal roadways & parking areas Appearance isn t noticeably affected by minor bumps or vehicle impact Structural integrity of the block is never compromised

66 KEEP A FEW THINGS IN MIND WHEN DESIGNING

67 SELECTING THE RIGHT PRODUCT Overall aesthetics Block size & available site access Structural requirements Gravity/Geogrid reinforced handrails, property lines, etc Geometry Are there tight curves?

68 HOW HIGH & WHAT ARE THE SPACE REQUIRMENTS Gravity Walls Rule of Thumb Max Height = 3 x Block Depth 3x x

69 PROPERTY LINE HOW HIGH & WHAT ARE THE SPACE REQUIRMENTS Geogrid Walls Rule of Thumb Depth of Geogrid = 70% of wall height Remember Excavation Cannot encroach property line 0.7 x H H

70 PROPERTY LINE PROPERTY LINE HOW HIGH & WHAT ARE THE SPACE REQUIRMENTS Large Gravity walls maybe the answer to tight property lines

71 WHAT ABOUT DRAINAGE Majority of wall failures are a direct result of improper drainage

72 WHAT ABOUT DRAINAGE Internal Drainage To remove hydrostatic pressures from behind the wall Through Wall Face To Catch Basin/Drain

73 WHAT ABOUT DRAINAGE External Drainage Swales above & below the wall are an effective, low-cost drainage method to divert water away from the wall Clay Swale Concrete Swale

74 HANDRAILS, FENCES & SAFETY Most Building Codes typically require handrails for wall over 0.6m (2 ) for safety pruposes Large Block Walls Core drill directly into the block Small Block Walls Place in Sonotube behind the wall

75 HANDRAILS, FENCES & SAFETY Wood privacy fences must be accounted for in the design not after the fact Normally, must be placed behind the wall The foundation must be place during construction

76 LARGE TREES & PLANTS No way to quantify the effect of trees on the wall wind loading Placement of grid & trees must be planned ahead of time Tree must be staked until root structure develops to stabilize itself Tree should be kept out of the reinforced zone if possible

77 WHAT ABOUT OTHER STRUCTURES & UTILITES Catch basins Underground services Behind wall Below or in front of wall Keep other structures & utilities out of the reinforced zone Underground Service Catch Basin Underground Service

78 CASE STUDY: WEST LONDON DYKE REVETMENT Product: DuraHold Manufacturer: Unilock Ltd. Location: London, Ontario Designer: Risi Stone Systems Civil Engineer: Stantec Consulting Eng. Contractor: Ro-Buck Contracting Ltd.

79 CASE STUDY: WEST LONDON DYKE REVETMENT Proposed wall replaced approximately 300m of the existing dyke along the Thames River in this phase.

80 CASE STUDY: WEST LONDON DYKE REVETMENT Access to the site was limited & all construction had to be completed from the high side to prevent contamination of the Thames River.

81 CASE STUDY: WEST LONDON DYKE REVETMENT Coordination of the excavation, block placement, and infill material was crucial due to the limited space.

82 CASE STUDY: WEST LONDON DYKE REVETMENT A fall arrest system with anchor wires secured to large blocks was utilized due to the height of the wall. The workers then harnessed themselves to the anchor wire, allowing enough range of movement required to construct the wall.

83 CASE STUDY: WEST LONDON DYKE REVETMENT A reinforced toe wall that was constructed in the 1980s to stabilize the original dyke was used as erosion protection. It was cut to fit the new layout and riprap was placed between it and the DuraHold Wall.

84 CASE STUDY: WEST LONDON DYKE REVETMENT To allow for the water to exit the infill zone as quickly as possible following a flood event, the wall was backfilled with a 10mm gap-graded drainage layer.

85 CASE STUDY: WEST LONDON DYKE REVETMENT Drainage tiles were installed at grade, for the 2 year and the 75 year flood events. The drainage tiles outlet through the face at 15m intervals.

86 CASE STUDY: WEST LONDON DYKE REVETMENT The south end of the wall was terraced to allow for a future pathway to extend under the Queens Ave. bridge.

87 CASE STUDY: WEST LONDON DYKE REVETMENT The pathway along the Thames River was incorporated into the new layout along the top of the wall.

88 CASE STUDY: WEST LONDON DYKE REVETMENT

89 CASE STUDY: WEST LONDON DYKE REVETMENT

90 CASE STUDY: WEST LONDON DYKE REVETMENT

91 SOLID WALL WITH SOLID SUPPORT

92 SOLID WALL WITH SOLID SUPPORT Expert Engineers with over 50 year combined SRW design experience Accurate reports & final design submission drawings A smooth & collaborative design process without the headaches

93 INDUSTRY LEADING DESIGN SOFTWARE Risi Stone Edition Import grading & layout info direct from CAD Run Static, Seismic, & ICS Analysis in accordance to NCMA or AASHTO (LRFD) Generate quantity estimates & project specific Reports Visit to learn more

94 INDUSTRY LEADING DESIGN SOFTWARE AutoCAD Tool Typical Representation AWall Representation Accurately displays the True footprint of the wall Create Elevation Views & Quantity Estimates Export Wall Data directly to Vespa.RS

95 UNILOCK WALL Thank You