Welcome<br />
The Big Picture<br /><ul><li>Urban Development
  Climate Change</li></li></ul><li>Urban Development<br /><ul><li>Reduction of buildable/useable land has lead to:
 need to build up hillsides
 increase in infrastructure (bridges, culverts)
 higher density per sqm
Reduction of green space has lead to:
 increase storm water runoff
 increase in erosion
 increase demand to creeks and ditches	</li></li></ul><li>Climate Change<br /><ul><li>violate storms
 flooding
 draught
 eroding banks
 slope failures
 slides</li></li></ul><li>Environmental Issues<br /><ul><li>Pollution – air, water, noise
Loss of natural areas
Lack of biodiversity
Site disturbance (large construction footprint)
Heat island effect
Construction waste material
Sedimentation</li></li></ul><li>Rise of Environmental Approaches<br /><ul><li>Past guidelines based on structural concepts...
Current guidelines more focused on preventative measures with environmental approach:
Green Building Code
 Green Roads Rating System
 Green Shorelines
LEED projects
 EAA
 DFO</li></li></ul><li><ul><li>BC Ministry of State of Climate Action
BC Climate Action Charter:local government to cut GHGE by 2012
BC Forestry Climate Change Working Group:carbon neutral by 2015
Kyoto Protocal (expires 2012)
World Wildlife Foundation states GHG must bereduced by 80% by 2050</li></ul>Governmental Environmental Mandates<br />
Government Funding with Environmental Emphasis<br /><ul><li>Federal Gas Tax Fund
Federal Infrastructure Fund
Federation of Canadian Municipalities’ Green Fund
Provincial Cycling Infrastructure Partnership Program
Provincial LocalMotion Fund
Translink’s Bicycling Infrastructure Capital Cost Sharing Program Funding
Pacific Carbon Trust – mandate to qualify BC based activities with GHG offset
Carbon Credit – green technology or process that reduces GHG
Potential carbon-credit “Cap & Trade” market</li></li></ul><li>The Need for Environmental Solutions<br />Retaining Walls &...
Time for Change<br />
Time for Change<br />           HARD				<br />(permanent engineered)	     <br />
HARDSOFT<br />(temporary vegetated)<br />Time for Change<br />
Deltalok’sStrength<br />DELTALOK<br />Soft<br />Permanent<br />Vegetated<br />Engineered<br />HARD<br />SOFT<br />
Deltalok System<br />Deltalok GTX Bag<br /><ul><li>a proven material in the industry
 provides a filtering functionality
 water permeable & root friendly</li></ul>Deltalok Interlocking Unit<br /><ul><li> made of recycled polypropylene
 consist of 11 spikes
 provides the 3D interlocking strength</li></li></ul><li><ul><li>Deltalok combines engineering & science
Engineering = known methodologies, analysis, principles
Science = vegetation principles of water, light, nutrients & oxygen</li></ul>Deltalok’s Principles<br />
<ul><li>Deltalok GTX Bag
Specially Selected GTX Material
Soils Engineering
Quality soils in the bag. Science!  </li></ul>Deltalok’s Principles<br />
<ul><li>Deltalok – Interlocking Unit
Structure  Engineering</li></ul>Deltalok’s Principles<br />
<ul><li>Engineered Drainage</li></ul>Deltalok’s Principles<br />
<ul><li>Engineered flexibility
Effective in seismic and soft soils</li></ul>Deltalok’s Principles<br />
<ul><li>Deltalok Engineering & Science</li></ul>Deltalok’s Principles<br />
<ul><li>Shoreline, streambank, riverbank protection
Retaining Walls
Landscape Walls
Steepened Slopes
Culvert headwalls
Ditches
Noise walls
Flood control
Military applications</li></ul>Deltalok – Application examples<br />
Potential LEED credits - 21 Credits<br />
Potential LEED credits - 21 Credits<br />
<ul><li>Independent GHG analysis performed
Measured emissions during:
Manufacturing of component
Manufacturing of system
Transportation
Construction
Maintenance
Concluded 97% reduction when compared to concrete</li></ul>Greenhouse Gas (GHG) Analysis <br />
Deltalok Inc. Overview<br /><ul><li>Part of a group of companies established in 1980
 Head office in North Vancouver, BC
 Canadian invention
 Patented in over 50 countries
Over 2M Deltalok sets installed worldwide</li></li></ul><li>Canada<br />USA<br />Malaysia<br />Korea<br />Singapore<br />U...
1 - Gravity Structures<br /><ul><li>Walls
Slopes</li></ul>2 - MSE Structures<br /><ul><li>Walls
Slopes</li></ul>3 - Surface Stability & Erosion Protection<br /><ul><li>Streams & shorelines
Ditches</li></ul>Engineering & Design Methodology<br />
Principles of Soils <br /><ul><li>Soil structures require stable surface element to hold back & filter soils
Soils natural angle of repose is 30 to 40 degrees (15degrees in water)
Soils have good compressive capabilities
Soils have low tensile capabilities</li></li></ul><li>Designing Earth Structures<br />Slopes: 45 to 70 degrees<br />Walls:...
1 - Gravity Structures<br /><ul><li>Wall mass supports existing earth & hydrostatic pressures behind the wall
Designed for no live or surcharge loading
Maximum height above </li></ul>	 ground usually up to 1.2m<br /><ul><li>Deltalok ‘Tie Back’ design allows for taller walls...
Deltalok offers double layer of geosynthetic every 150mm</li></li></ul><li>Designed Factors of Safety<br /><ul><li>Retaini...
Facing Shear (Peak/serviceability)	1.5
Facing Connection (Peak/serviceability)	1.5
Uncertainties	1.5</li></ul>External Stability<br /><ul><li>Base Sliding (static)	1.5
Overturning	2.0
Bearing	2.0
Global	1.3
Over-steepened Slopes ( < 71 deg):</li></ul> <br />External Stability and settlement<br /><ul><li>Sliding	1.3
Deep seated (overall stability)	1.3
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Deltalok BCOverview Jan 2010

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Deltalok Ecological Engineered Geotechnical Solution - Overview

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Deltalok BCOverview Jan 2010

  1. 1. Welcome<br />
  2. 2. The Big Picture<br /><ul><li>Urban Development
  3. 3. Climate Change</li></li></ul><li>Urban Development<br /><ul><li>Reduction of buildable/useable land has lead to:
  4. 4. need to build up hillsides
  5. 5. increase in infrastructure (bridges, culverts)
  6. 6. higher density per sqm
  7. 7. Reduction of green space has lead to:
  8. 8. increase storm water runoff
  9. 9. increase in erosion
  10. 10. increase demand to creeks and ditches </li></li></ul><li>Climate Change<br /><ul><li>violate storms
  11. 11. flooding
  12. 12. draught
  13. 13. eroding banks
  14. 14. slope failures
  15. 15. slides</li></li></ul><li>Environmental Issues<br /><ul><li>Pollution – air, water, noise
  16. 16. Loss of natural areas
  17. 17. Lack of biodiversity
  18. 18. Site disturbance (large construction footprint)
  19. 19. Heat island effect
  20. 20. Construction waste material
  21. 21. Sedimentation</li></li></ul><li>Rise of Environmental Approaches<br /><ul><li>Past guidelines based on structural concepts with marginal focus on the environment
  22. 22. Current guidelines more focused on preventative measures with environmental approach:
  23. 23. Green Building Code
  24. 24. Green Roads Rating System
  25. 25. Green Shorelines
  26. 26. LEED projects
  27. 27. EAA
  28. 28. DFO</li></li></ul><li><ul><li>BC Ministry of State of Climate Action
  29. 29. BC Climate Action Charter:local government to cut GHGE by 2012
  30. 30. BC Forestry Climate Change Working Group:carbon neutral by 2015
  31. 31. Kyoto Protocal (expires 2012)
  32. 32. World Wildlife Foundation states GHG must bereduced by 80% by 2050</li></ul>Governmental Environmental Mandates<br />
  33. 33. Government Funding with Environmental Emphasis<br /><ul><li>Federal Gas Tax Fund
  34. 34. Federal Infrastructure Fund
  35. 35. Federation of Canadian Municipalities’ Green Fund
  36. 36. Provincial Cycling Infrastructure Partnership Program
  37. 37. Provincial LocalMotion Fund
  38. 38. Translink’s Bicycling Infrastructure Capital Cost Sharing Program Funding
  39. 39. Pacific Carbon Trust – mandate to qualify BC based activities with GHG offset
  40. 40. Carbon Credit – green technology or process that reduces GHG
  41. 41. Potential carbon-credit “Cap & Trade” market</li></li></ul><li>The Need for Environmental Solutions<br />Retaining Walls & Slopes<br />Rock, wire mesh, concrete<br />Green retaining walls & slopes<br />Noise Attenuation<br />Concrete, wood, steel<br />Vegetated berm structure<br />Shoreline Protection<br />Rock, wire mesh, concrete<br />Green shoreline<br />Stream bank Stability<br />Rock, wire mesh, concrete<br />Bio-engineered system<br />
  42. 42. Time for Change<br />
  43. 43. Time for Change<br /> HARD <br />(permanent engineered) <br />
  44. 44. HARDSOFT<br />(temporary vegetated)<br />Time for Change<br />
  45. 45. Deltalok’sStrength<br />DELTALOK<br />Soft<br />Permanent<br />Vegetated<br />Engineered<br />HARD<br />SOFT<br />
  46. 46. Deltalok System<br />Deltalok GTX Bag<br /><ul><li>a proven material in the industry
  47. 47. provides a filtering functionality
  48. 48. water permeable & root friendly</li></ul>Deltalok Interlocking Unit<br /><ul><li> made of recycled polypropylene
  49. 49. consist of 11 spikes
  50. 50. provides the 3D interlocking strength</li></li></ul><li><ul><li>Deltalok combines engineering & science
  51. 51. Engineering = known methodologies, analysis, principles
  52. 52. Science = vegetation principles of water, light, nutrients & oxygen</li></ul>Deltalok’s Principles<br />
  53. 53. <ul><li>Deltalok GTX Bag
  54. 54. Specially Selected GTX Material
  55. 55. Soils Engineering
  56. 56. Quality soils in the bag. Science! </li></ul>Deltalok’s Principles<br />
  57. 57. <ul><li>Deltalok – Interlocking Unit
  58. 58. Structure Engineering</li></ul>Deltalok’s Principles<br />
  59. 59. <ul><li>Engineered Drainage</li></ul>Deltalok’s Principles<br />
  60. 60. <ul><li>Engineered flexibility
  61. 61. Effective in seismic and soft soils</li></ul>Deltalok’s Principles<br />
  62. 62. <ul><li>Deltalok Engineering & Science</li></ul>Deltalok’s Principles<br />
  63. 63. <ul><li>Shoreline, streambank, riverbank protection
  64. 64. Retaining Walls
  65. 65. Landscape Walls
  66. 66. Steepened Slopes
  67. 67. Culvert headwalls
  68. 68. Ditches
  69. 69. Noise walls
  70. 70. Flood control
  71. 71. Military applications</li></ul>Deltalok – Application examples<br />
  72. 72. Potential LEED credits - 21 Credits<br />
  73. 73. Potential LEED credits - 21 Credits<br />
  74. 74. <ul><li>Independent GHG analysis performed
  75. 75. Measured emissions during:
  76. 76. Manufacturing of component
  77. 77. Manufacturing of system
  78. 78. Transportation
  79. 79. Construction
  80. 80. Maintenance
  81. 81. Concluded 97% reduction when compared to concrete</li></ul>Greenhouse Gas (GHG) Analysis <br />
  82. 82. Deltalok Inc. Overview<br /><ul><li>Part of a group of companies established in 1980
  83. 83. Head office in North Vancouver, BC
  84. 84. Canadian invention
  85. 85. Patented in over 50 countries
  86. 86. Over 2M Deltalok sets installed worldwide</li></li></ul><li>Canada<br />USA<br />Malaysia<br />Korea<br />Singapore<br />UK<br />New Zealand<br />Australia<br />China<br />Columbia<br />Hong Kong<br />Netherland<br />Iran<br />Switzerland<br />Italy<br />Spain<br />Deltalok Locations<br />
  87. 87. 1 - Gravity Structures<br /><ul><li>Walls
  88. 88. Slopes</li></ul>2 - MSE Structures<br /><ul><li>Walls
  89. 89. Slopes</li></ul>3 - Surface Stability & Erosion Protection<br /><ul><li>Streams & shorelines
  90. 90. Ditches</li></ul>Engineering & Design Methodology<br />
  91. 91. Principles of Soils <br /><ul><li>Soil structures require stable surface element to hold back & filter soils
  92. 92. Soils natural angle of repose is 30 to 40 degrees (15degrees in water)
  93. 93. Soils have good compressive capabilities
  94. 94. Soils have low tensile capabilities</li></li></ul><li>Designing Earth Structures<br />Slopes: 45 to 70 degrees<br />Walls: 71 to 90 degrees <br />MSE Walls: Reinforcing material adds tensile strength to the soils<br />slope<br />wall<br />
  95. 95. 1 - Gravity Structures<br /><ul><li>Wall mass supports existing earth & hydrostatic pressures behind the wall
  96. 96. Designed for no live or surcharge loading
  97. 97. Maximum height above </li></ul> ground usually up to 1.2m<br /><ul><li>Deltalok ‘Tie Back’ design allows for taller walls – up to 2m</li></li></ul><li>Designing Earth Structures<br /><ul><li>Deltalok creates small lifts of soil confined within geosynthetic layers
  98. 98. Deltalok offers double layer of geosynthetic every 150mm</li></li></ul><li>Designed Factors of Safety<br /><ul><li>Retaining Walls (71 deg to 90 deg):</li></ul>Internal StabilityMinimum Factor of Safety<br /><ul><li>Pullout (Peak) 1.5
  99. 99. Facing Shear (Peak/serviceability) 1.5
  100. 100. Facing Connection (Peak/serviceability) 1.5
  101. 101. Uncertainties 1.5</li></ul>External Stability<br /><ul><li>Base Sliding (static) 1.5
  102. 102. Overturning 2.0
  103. 103. Bearing 2.0
  104. 104. Global 1.3
  105. 105. Over-steepened Slopes ( < 71 deg):</li></ul> <br />External Stability and settlement<br /><ul><li>Sliding 1.3
  106. 106. Deep seated (overall stability) 1.3
  107. 107. Local bearing failure (lateral squeeze) 1.3
  108. 108. Dynamic loading 1.1</li></ul>Settlement-post construction magnitude and time rate based on project requirements<br /><ul><li>Compound failure: 1.3
  109. 109. Internal slope stability 1.3</li></li></ul><li>Example – Gravity Structure<br />Site Parameters:<br /><ul><li> Ongoing erosion affecting cart path
  110. 110. Height of bank - 2m
  111. 111. Slope angle 1H:2V (65 degrees)
  112. 112. Must meet environmental mandates
  113. 113. Must be aesthetically pleasing </li></li></ul><li><ul><li>Biodegradable system
  114. 114. Too steep
  115. 115. Does not provide instant protection - dependent on root system
  116. 116. Gabions
  117. 117. Require additional excavation
  118. 118. Does not blend with nature
  119. 119. Concrete Modular Block
  120. 120. Footings required – too invasive
  121. 121. Not accepted close to stream
  122. 122. Does not blend with nature</li></ul>Gravity Structure - Design Options <br />
  123. 123. Environmental Solution - Deltalok“Tie Back” Design<br />
  124. 124. Environmental Solution - Deltalok“Tie Back” Design<br />
  125. 125. Engineering Design – 2m high<br />
  126. 126. Global Stability Analysis – 2m high<br />Good design, FS &gt; 1.2<br />
  127. 127. Environmental Solution - Deltalok<br /><ul><li>Provided instant erosion protection
  128. 128. Easy to install within wetted area
  129. 129. Provided filtration & sedimentation control</li></li></ul><li><ul><li>Approval by all governing bodies
  130. 130. Quick installation - outside wetted perimeter
  131. 131. Minimum site disturbance
  132. 132. Provided fish friendly solution
  133. 133. Successful re-vegetation with hydroseeding & live stacking
  134. 134. Photo taken 2yr after installation</li></ul>Environmental Solution - Deltalok <br />
  135. 135. 2 - MSE Structure<br />DeltalokEcology Bags &<br />Interlocking Connector maintain<br />facial stability<br />geogrids resist external force<br />failure mechanisms<br />DeltalokInterlocking Connectors attach geogrids to Ecology Bags and<br />provides shear strength<br />NCMA Suggestion: L &gt; 0.6H<br />DOT Suggestion: L &gt; 0.7H<br />
  136. 136. Example – MSE Structure<br />Site Parameters:<br /><ul><li> Golden Ears Bridge 5m high on/off ramp
  137. 137. P3 project required to integrate environmental solutions
  138. 138. Golf course across the ramp demanded design with minimum visual impact
  139. 139. Need for competitive solution</li></li></ul><li><ul><li>MSE Concrete Modular Block
  140. 140. Does not meet aesthetic requirements
  141. 141. Does not meet with environmental requirements
  142. 142. MSE wire structure
  143. 143. Does not meet aesthetic requirements
  144. 144. Does not meet with environmental requirements</li></ul>MSE Structure - Design Options <br />
  145. 145. Environmental Solution – DeltalokMSE design<br />
  146. 146. Engineering Design – 5m high<br />
  147. 147. Global Stability Analysis – 5m high<br />Design is good, FS &gt; 1.25<br />
  148. 148. Environmental Solution - Deltalok<br /><ul><li>Deltalok accommodated 4 integrated curvatures
  149. 149. MSE design included high density polystyrene blocks to reduce load
  150. 150. Deltalok will adapt to anticipated settlements </li></li></ul><li>Environmental Solution - Deltalok <br /><ul><li>Deltalok design supported government mandate for environmental solution
  151. 151. Vegetated with zero maintenance ground cover
  152. 152. Additional benefits are heat reduction, noise absorption & anti-graffiti</li></li></ul><li>3 - Surface Stability & Erosion Protection<br />
  153. 153. 3 - Surface Stability & Erosion Protection<br /><ul><li>Continuous erosion leads to:
  154. 154. Steepened slopes
  155. 155. Soils void of nutrients
  156. 156. Loss of vegetation
  157. 157. Potential slope failure
  158. 158. Sediments in the water
  159. 159. Lack of canopy over water for shade
  160. 160. Loss of private or public property</li></li></ul><li>Example - Slope Stability & Erosion<br />Site Parameters:<br /><ul><li> Height of slope - 9m
  161. 161. Slope angle 1H:1V (45 degrees)
  162. 162. Sandy Soil
  163. 163. Difficult to access
  164. 164. House above, lake below</li></li></ul><li><ul><li>Erosion Mats
  165. 165. Too steep - 2V:1H (27 degrees) suggested maximum
  166. 166. Does not provide instant protection - dependent on root system
  167. 167. Gabions
  168. 168. Hard to install without equipment
  169. 169. Require additional excavation
  170. 170. Does not blend with nature
  171. 171. Stepped Walls
  172. 172. Hard to install without equipment
  173. 173. Does not blend with nature</li></ul>Engineering Design Options <br />
  174. 174. Environmental Solution - Deltalok“Tie Back” Design<br />
  175. 175. <ul><li>Provides instant erosion protection
  176. 176. Easy to install
  177. 177. Mimics existing topography
  178. 178. Provides filtration & sedimentation</li></ul>Environmental Solution - Deltalok<br />
  179. 179. <ul><li>Approval by all governing bodies
  180. 180. Accommodated existing terrain
  181. 181. Overall install cost less then budgeted
  182. 182. Successful re-vegetation using Native bluegrass, fescue & rye grass seed mix
  183. 183. Photo taken 5 yr after installation</li></ul>Environmental Solution - Deltalok <br />
  184. 184. Example - Slope Stability & Erosion<br />Site Parameters:<br /><ul><li> Continuous erosion along stream
  185. 185. Undermining of path above
  186. 186. Difficult site access
  187. 187. Must meet government environmental mandate</li></li></ul><li>Eroded Section of the Stream<br />Stream away from erosion<br />Stream at most <br /> erosion<br />
  188. 188. Environmental Solution - Deltalok<br /><ul><li>Embedment for toe protection
  189. 189. Eco Rap revetment to protect from scour.</li></li></ul><li>Slope Stability Analysis<br />
  190. 190. Example - Eroding Trail<br />Site Parameters:<br /><ul><li> Eroded slopes above and below trail
  191. 191. Require minimum site disturbance
  192. 192. Difficult to access site
  193. 193. Need to re-vegetated with native plants
  194. 194. Minimum closure time </li></ul>since popular public path<br />
  195. 195. <ul><li> Gabions
  196. 196. Hard to install without equipment
  197. 197. Challenging to vegetate
  198. 198. Does not conform to existing topography
  199. 199. Concrete Modular Blocks
  200. 200. Require additional excavation
  201. 201. Require leveling pad & steps
  202. 202. Traditional drainage system required
  203. 203. Does not conform to existing topography – linear look
  204. 204. Does not blend with nature</li></ul>Engineering Design Options <br />
  205. 205. Environmental Solution – DeltalokTie Back & Geogrid Design<br />
  206. 206. Environmental Solution - Deltalok<br /><ul><li>Required drainage provided via gravel filled Deltalok bags
  207. 207. Easy to install
  208. 208. Minimum excavation required
  209. 209. Designed for emergency vehicle</li></li></ul><li>Easy for Contractors<br /><ul><li>Flexible system
  210. 210. No leveling pad (150mm typ.)
  211. 211. No gravel drain layer required (300mm)
  212. 212. No shimming of units for level</li></ul>Hard solutions require leveling pads, steps … make the environment fit the solutions<br />Deltalok Fits the situation<br />
  213. 213. Environmental Solution - Deltalok <br /><ul><li>City’s Parks & Environment Departments approval
  214. 214. Re-vegetation using native ferns & shrubs that require minimum sunlight
  215. 215. Conformed to existing contours
  216. 216. Sustainable solution that blends with nature
  217. 217. Photo taken 4mths after installation</li></li></ul><li>Erosion - Infrastructure <br />Mother Nature is trying to establish a stable slope: 4H : 1V<br />
  218. 218. Engineering Design Options<br />Road<br />Nature’s natural slope<br />Road<br />Reinforced Concrete Channel<br />Gabions<br />
  219. 219. Environmental Solution - Deltalok<br />Two man days with City work crews.<br />Re-established astable 1H:1V slope<br />Provides a non-erodible surface<br />When vegetated, provides a solution that matches the environment<br />
  220. 220. Coffee Break<br />
  221. 221. <ul><li>Air
  222. 222. Water
  223. 223. Oxygen
  224. 224. Nutrients
  225. 225. Quality soil
  226. 226. Site exposure
  227. 227. Select vegetation based on exposure</li></ul>Vegetation Fundamentals<br />
  228. 228. Deltalok Vegetation -Why it greens<br /><ul><li>Permanently confines high quality soils
  229. 229. Eco-pockets every 0.15m vertically & 0.6m horizontally
  230. 230. Consistent growing medium to 100% of the face</li></li></ul><li>
  231. 231. Hydroseeding<br /><ul><li>Best Practice
  232. 232. Most common, cost effective & fastest growth
  233. 233. Saturate Deltalok bags first
  234. 234. Apply hydroseed mulch - ‘bonded fiber matrix’ suggested
  235. 235. Common Applications
  236. 236. All applications
  237. 237. Except those affected by changing water levels</li></li></ul><li>Vegetation Option: Hydroseeding<br />
  238. 238. Live Planting<br /><ul><li>Best Practice
  239. 239. Root balls can be placed between the bags or cut into the bag
  240. 240. Can be placed during or after installation
  241. 241. Make root ball in a cone shape with fertilizer pellet placed inside
  242. 242. Wet root ball prior to placement
  243. 243. Recommend 30% to 50% more plants then designing for horizontal area
  244. 244. Common Applications
  245. 245. Landscape walls & slopes
  246. 246. Restoration or reintroduction of native plant species</li></li></ul><li>Vegetation Option:Live Planting into Deltalok bags<br />
  247. 247. Vegetation Option –Live Planting between Deltalok bags<br />
  248. 248. Live Staking<br /><ul><li>Best Practice
  249. 249. Often used in combination with hydroseeding
  250. 250. Can be placed during or after installation
  251. 251. Do not puncture bags below high water mark
  252. 252. Common Applications
  253. 253. Most often used for shorelines & stream banks
  254. 254. When aesthetic outcome is for naturalized rugged look</li></li></ul><li>Vegetation Option – Live Staking<br />
  255. 255. Brush Layering<br /><ul><li>Best Practice
  256. 256. Similar to live staking but placed between the Deltalok bags
  257. 257. Placed during installation
  258. 258. Saturate backfill and bags thoroughly if dry
  259. 259. Common Applications
  260. 260. Used for shorelines & stream banks</li></li></ul><li>Vegetation Option – Brush Layering<br />
  261. 261. Pre-seeding Deltalok bags<br /><ul><li>Best Practice
  262. 262. Mix seeds with bag filling growing medium
  263. 263. Outcome variable – increase seed quantity
  264. 264. Saturate bags thoroughly after pre-seeding
  265. 265. Often combined with brush layering or live staking
  266. 266. Common Applications
  267. 267. Land/water applications where water could wash away seeds on the surface
  268. 268. Remote areas
  269. 269. Sites where wildlife could eat seeds on the surface</li></li></ul><li>Vegetation Option: pre-seeding Deltalok GTX bags<br />
  270. 270. Construction Fundamentals<br /><ul><li>Deltalok Bag Filling
  271. 271. Deltalok Bag Placement
  272. 272. Deltalok Interlocking Unit Placement
  273. 273. Backfill Placement and Compaction
  274. 274. Geogrid Placement, if required</li></li></ul><li>Bag filling<br />
  275. 275. Bag filling<br />
  276. 276.
  277. 277. TAMP DOWN<br />TAMP DOWN<br />Bag<br />Bag<br />Bag<br />Bag<br />Bag<br />Bag<br />Bag<br />Bag<br />Bag<br /> Bag<br />Bag<br />Bag<br />Interlock Deltalok GTX Bags<br />How to Build a Deltalok Self Standing Wall<br />Place the first row of Deltalok GTX Bags<br />Place Deltalok Standard Units<br />Continue building…<br />
  278. 278. Installation – gravity & MSE walls<br />
  279. 279. Deltalok’s Constructability<br />
  280. 280. Deltalok’s Constructability<br />
  281. 281. Deltalok’s Constructability<br />
  282. 282. Case Study #1 – Landscape WallsWest Vancouver, BC – British Properties<br />Situation:<br /><ul><li>Site located on steep slope where most of the trees have been removed
  283. 283. Objective to create a non-linear, less stark look
  284. 284. Desire to exceed District of West Vancouver’s ‘Green Infrastructure’ initiative</li></li></ul><li>Solution:<br /><ul><li>Use Deltalok to provide a softer appearance
  285. 285. Ability to build walls with curvatures both horizontally and vertically
  286. 286. Create a unique look
  287. 287. Increased amount of vegetation – heather, kinnikinnick, roses</li></ul>Case Study #1 – Landscape WallsWest Vancouver, BC – British Properties Built September 2009 – landscaping still incomplete<br />
  288. 288. Situation:<br /><ul><li>Ongoing wave erosion along Provincial Marine Park shoreline
  289. 289. Parkland, trees & First Nations artifacts effected
  290. 290. Boat access only
  291. 291. Shoreline consist of flat-lying sandstone bedrock
  292. 292. Permanent environmental solution required</li></ul>Case Study #2 – Shoreline ProtectionNewcastle Island, BC - across from Nanaimo<br />
  293. 293. Solution:<br /><ul><li>Anchoring Deltalok to sandstone using ‘wrap & lock’ methodology
  294. 294. Deltalok bags were pre-seeded with select seed mix
  295. 295. Additional live planting
  296. 296. Over $200,000 saved compared to traditional ‘hard’ solution</li></ul>Case Study #2 – Shoreline ProtectionNewcastle Island, BC - across from NanaimoBuilt December 2008<br />
  297. 297. Situation:<br /><ul><li>Reduce trucking travel time between gravel pit and highway
  298. 298. Road located through wetland
  299. 299. Need for quick construction to minimize road closure
  300. 300. Need to meet environmental & transportation requirements</li></ul>Case Study #3 – Culvert HeadwallsAbbotsford, BC – Valley Gravel Inc.<br />
  301. 301. Case Study #3 – Culvert HeadwallsAbbotsford, BC – Valley Gravel Inc.Built October 2006<br />Solution:<br /><ul><li>Build 4.5 m high Deltalok culvert headwall
  302. 302. With no traditional footings, cutting or drainage, Deltalok System was quickly installed
  303. 303. Deltalok’s DFO’s acceptance, quickened building permit process
  304. 304. Hydroseeded retaining wall
  305. 305. Photo taken 3yrs after construction</li></li></ul><li>Situation:<br /><ul><li>Construct 10km bike path along existing road
  306. 306. Road adjacent to environmentally sensitive area
  307. 307. Minimize construction footprint
  308. 308. Desire to blend with nature</li></ul>Case Study #4 – Road WideningAbbotsford, BC – Downs Road bicycle path<br />
  309. 309. Case Study #4 – Road WideningAbbotsford, BC – Downs Road bicycle pathPartly built July 2008 – completion spring 2010<br />Solution:<br /><ul><li>Deltalok used to steepen road embankment eliminating need to expropriate additional land
  310. 310. Provided quick construction with minimum traffic delays
  311. 311. Accommodated existing undulations – blended with surroundings
  312. 312. Aesthetically pleasing</li></li></ul><li>Situation:<br /><ul><li>Developer desired to obtain Gold LEED designation
  313. 313. Client wanted green wall system beside detention pond
  314. 314. Requirement to mimic surrounding vegetation</li></ul>Case Study #5 – Near Vertical WallsBurnaby, BC – Electronic Arts Head Office<br />
  315. 315. Solution:<br /><ul><li>Build a Deltalok near vertical MSE wall
  316. 316. Used live willow stacking and hydroseeding
  317. 317. Successful vegetation 5 yrs after installation</li></ul>Case Study #5 – Near Vertical WallsBurnaby, BC – Electronic Arts Head OfficeBuilt December 2005<br />
  318. 318. Deltalok’s Support<br /><ul><li> Initial site visit
  319. 319. Customized design ideas
  320. 320. Sample CADD drawings & specifications
  321. 321. Engineering support
  322. 322. On site training</li></li></ul><li>Deltalok’s Various Strengths<br /><ul><li> Flexibility Strength – adapts to grade changes, low bearing soils, differential settlement
  323. 323. Constructability Strength – full face drainage, no footings, buildable in difficult to access sites
  324. 324. Growing Strength – root development through bags
  325. 325. Immediate Structural Strength – 3D interlocking strength
  326. 326. Reinforced Strength – interlocking geogrid for MSE walls
  327. 327. Permanent Strength – resistant to degradation, soil chemicals, rodents, insects, non-biodegradable
  328. 328. Environmental Strength – DFO accepted, GHGE, noise & heat reduction, sedimentation & filtration ability
  329. 329. Aesthetic Strength – restores nature’s beauty</li></li></ul><li>What’s Stronger?<br />
  330. 330. Thank You for Coming…..<br />Let’s Build it Green Together<br />

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