Deltalok Ecological Engineered Geotechnical Solution - Overview

1. Welcome

4. need to build up hillsides

5. increase in infrastructure (bridges, culverts)

6. higher density per sqm

7. Reduction of green space has lead to:

8. increase storm water runoff

9. increase in erosion

11. flooding

12. draught

13. eroding banks

14. slope failures

16. Loss of natural areas

17. Lack of biodiversity

18. Site disturbance (large construction footprint)

19. Heat island effect

20. Construction waste material

22. Current guidelines more focused on preventative measures with environmental approach:

23. Green Building Code

24. Green Roads Rating System

25. Green Shorelines

26. LEED projects

27. EAA

29. BC Climate Action Charter:local government to cut GHGE by 2012

30. BC Forestry Climate Change Working Group:carbon neutral by 2015

31. Kyoto Protocal (expires 2012)

32. World Wildlife Foundation states GHG must bereduced by 80% by 2050Governmental Environmental Mandates

34. Federal Infrastructure Fund

35. Federation of Canadian Municipalities’ Green Fund

36. Provincial Cycling Infrastructure Partnership Program

37. Provincial LocalMotion Fund

38. Translink’s Bicycling Infrastructure Capital Cost Sharing Program Funding

39. Pacific Carbon Trust – mandate to qualify BC based activities with GHG offset

40. Carbon Credit – green technology or process that reduces GHG

42. Time for Change

43. Time for Change HARD (permanent engineered)

44. HARDSOFT (temporary vegetated) Time for Change

45. Deltalok’sStrength DELTALOK Soft Permanent Vegetated Engineered HARD SOFT

47. provides a filtering functionality

49. consist of 11 spikes

51. Engineering = known methodologies, analysis, principles

52. Science = vegetation principles of water, light, nutrients & oxygenDeltalok’s Principles

54. Specially Selected GTX Material

55. Soils Engineering

56. Quality soils in the bag. Science! Deltalok’s Principles

58. Structure EngineeringDeltalok’s Principles

61. Effective in seismic and soft soilsDeltalok’s Principles

64. Retaining Walls

65. Landscape Walls

66. Steepened Slopes

67. Culvert headwalls

68. Ditches

69. Noise walls

70. Flood control

71. Military applicationsDeltalok – Application examples

72. Potential LEED credits - 21 Credits

73. Potential LEED credits - 21 Credits

75. Measured emissions during:

76. Manufacturing of component

77. Manufacturing of system

78. Transportation

79. Construction

80. Maintenance

81. Concluded 97% reduction when compared to concreteGreenhouse Gas (GHG) Analysis

83. Head office in North Vancouver, BC

84. Canadian invention

85. Patented in over 50 countries

90. DitchesEngineering & Design Methodology

92. Soils natural angle of repose is 30 to 40 degrees (15degrees in water)

93. Soils have good compressive capabilities

96. Designed for no live or surcharge loading

99. Facing Shear (Peak/serviceability) 1.5

100. Facing Connection (Peak/serviceability) 1.5

102. Overturning 2.0

103. Bearing 2.0

104. Global 1.3

106. Deep seated (overall stability) 1.3

107. Local bearing failure (lateral squeeze) 1.3

110. Height of bank - 2m

111. Slope angle 1H:2V (65 degrees)

112. Must meet environmental mandates

114. Too steep

115. Does not provide instant protection - dependent on root system

116. Gabions

117. Require additional excavation

118. Does not blend with nature

119. Concrete Modular Block

120. Footings required – too invasive

121. Not accepted close to stream

122. Does not blend with natureGravity Structure - Design Options

123. Environmental Solution - Deltalok“Tie Back” Design

124. Environmental Solution - Deltalok“Tie Back” Design

125. Engineering Design – 2m high

126. Global Stability Analysis – 2m high Good design, FS > 1.2

128. Easy to install within wetted area

130. Quick installation - outside wetted perimeter

131. Minimum site disturbance

132. Provided fish friendly solution

133. Successful re-vegetation with hydroseeding & live stacking

134. Photo taken 2yr after installationEnvironmental Solution - Deltalok

135. 2 - MSE Structure DeltalokEcology Bags & Interlocking Connector maintain facial stability geogrids resist external force failure mechanisms DeltalokInterlocking Connectors attach geogrids to Ecology Bags and provides shear strength NCMA Suggestion: L > 0.6H DOT Suggestion: L > 0.7H

137. P3 project required to integrate environmental solutions

138. Golf course across the ramp demanded design with minimum visual impact

140. Does not meet aesthetic requirements

141. Does not meet with environmental requirements

142. MSE wire structure

143. Does not meet aesthetic requirements

144. Does not meet with environmental requirementsMSE Structure - Design Options

145. Environmental Solution – DeltalokMSE design

146. Engineering Design – 5m high

147. Global Stability Analysis – 5m high Design is good, FS > 1.25

149. MSE design included high density polystyrene blocks to reduce load

151. Vegetated with zero maintenance ground cover

154. Steepened slopes

155. Soils void of nutrients

156. Loss of vegetation

157. Potential slope failure

158. Sediments in the water

159. Lack of canopy over water for shade

161. Slope angle 1H:1V (45 degrees)

162. Sandy Soil

163. Difficult to access

165. Too steep - 2V:1H (27 degrees) suggested maximum

166. Does not provide instant protection - dependent on root system

167. Gabions

168. Hard to install without equipment

169. Require additional excavation

170. Does not blend with nature

171. Stepped Walls

172. Hard to install without equipment

173. Does not blend with natureEngineering Design Options

174. Environmental Solution - Deltalok“Tie Back” Design

176. Easy to install

177. Mimics existing topography

178. Provides filtration & sedimentationEnvironmental Solution - Deltalok

180. Accommodated existing terrain

181. Overall install cost less then budgeted

182. Successful re-vegetation using Native bluegrass, fescue & rye grass seed mix

183. Photo taken 5 yr after installationEnvironmental Solution - Deltalok

185. Undermining of path above

186. Difficult site access

191. Require minimum site disturbance

192. Difficult to access site

193. Need to re-vegetated with native plants

194. Minimum closure time since popular public path

196. Hard to install without equipment

197. Challenging to vegetate

198. Does not conform to existing topography

199. Concrete Modular Blocks

200. Require additional excavation

201. Require leveling pad & steps

202. Traditional drainage system required

203. Does not conform to existing topography – linear look

204. Does not blend with natureEngineering Design Options

205. Environmental Solution – DeltalokTie Back & Geogrid Design

207. Easy to install

208. Minimum excavation required

210. No leveling pad (150mm typ.)

211. No gravel drain layer required (300mm)

212. No shimming of units for levelHard solutions require leveling pads, steps … make the environment fit the solutions Deltalok Fits the situation

214. Re-vegetation using native ferns & shrubs that require minimum sunlight

215. Conformed to existing contours

216. Sustainable solution that blends with nature

218. Engineering Design Options Road Nature’s natural slope Road Reinforced Concrete Channel Gabions

219. Environmental Solution - Deltalok Two man days with City work crews. Re-established astable 1H:1V slope Provides a non-erodible surface When vegetated, provides a solution that matches the environment

220. Coffee Break

222. Water

223. Oxygen

224. Nutrients

225. Quality soil

226. Site exposure

227. Select vegetation based on exposureVegetation Fundamentals

229. Eco-pockets every 0.15m vertically & 0.6m horizontally

232. Most common, cost effective & fastest growth

233. Saturate Deltalok bags first

234. Apply hydroseed mulch - ‘bonded fiber matrix’ suggested

235. Common Applications

236. All applications

239. Root balls can be placed between the bags or cut into the bag

240. Can be placed during or after installation

241. Make root ball in a cone shape with fertilizer pellet placed inside

242. Wet root ball prior to placement

243. Recommend 30% to 50% more plants then designing for horizontal area

244. Common Applications

245. Landscape walls & slopes

247. Vegetation Option –Live Planting between Deltalok bags

249. Often used in combination with hydroseeding

250. Can be placed during or after installation

251. Do not puncture bags below high water mark

252. Common Applications

253. Most often used for shorelines & stream banks

256. Similar to live staking but placed between the Deltalok bags

257. Placed during installation

258. Saturate backfill and bags thoroughly if dry

259. Common Applications

262. Mix seeds with bag filling growing medium

263. Outcome variable – increase seed quantity

264. Saturate bags thoroughly after pre-seeding

265. Often combined with brush layering or live staking

266. Common Applications

267. Land/water applications where water could wash away seeds on the surface

268. Remote areas

271. Deltalok Bag Placement

272. Deltalok Interlocking Unit Placement

273. Backfill Placement and Compaction

275. Bag filling

277. TAMP DOWN TAMP DOWN Bag Bag Bag Bag Bag Bag Bag Bag Bag Bag Bag Bag Interlock Deltalok GTX Bags How to Build a Deltalok Self Standing Wall Place the first row of Deltalok GTX Bags Place Deltalok Standard Units Continue building…

278. Installation – gravity & MSE walls

279. Deltalok’s Constructability

280. Deltalok’s Constructability

281. Deltalok’s Constructability

283. Objective to create a non-linear, less stark look

285. Ability to build walls with curvatures both horizontally and vertically

286. Create a unique look

287. Increased amount of vegetation – heather, kinnikinnick, rosesCase Study #1 – Landscape WallsWest Vancouver, BC – British Properties Built September 2009 – landscaping still incomplete

289. Parkland, trees & First Nations artifacts effected

290. Boat access only

291. Shoreline consist of flat-lying sandstone bedrock

292. Permanent environmental solution requiredCase Study #2 – Shoreline ProtectionNewcastle Island, BC - across from Nanaimo

294. Deltalok bags were pre-seeded with select seed mix

295. Additional live planting

296. Over $200,000 saved compared to traditional ‘hard’ solutionCase Study #2 – Shoreline ProtectionNewcastle Island, BC - across from NanaimoBuilt December 2008

298. Road located through wetland

299. Need for quick construction to minimize road closure

300. Need to meet environmental & transportation requirementsCase Study #3 – Culvert HeadwallsAbbotsford, BC – Valley Gravel Inc.

302. With no traditional footings, cutting or drainage, Deltalok System was quickly installed

303. Deltalok’s DFO’s acceptance, quickened building permit process

304. Hydroseeded retaining wall

306. Road adjacent to environmentally sensitive area

307. Minimize construction footprint

308. Desire to blend with natureCase Study #4 – Road WideningAbbotsford, BC – Downs Road bicycle path

310. Provided quick construction with minimum traffic delays

311. Accommodated existing undulations – blended with surroundings

313. Client wanted green wall system beside detention pond

314. Requirement to mimic surrounding vegetationCase Study #5 – Near Vertical WallsBurnaby, BC – Electronic Arts Head Office

316. Used live willow stacking and hydroseeding

317. Successful vegetation 5 yrs after installationCase Study #5 – Near Vertical WallsBurnaby, BC – Electronic Arts Head OfficeBuilt December 2005

319. Customized design ideas

320. Sample CADD drawings & specifications

321. Engineering support

323. Constructability Strength – full face drainage, no footings, buildable in difficult to access sites

324. Growing Strength – root development through bags

325. Immediate Structural Strength – 3D interlocking strength

326. Reinforced Strength – interlocking geogrid for MSE walls

327. Permanent Strength – resistant to degradation, soil chemicals, rodents, insects, non-biodegradable

328. Environmental Strength – DFO accepted, GHGE, noise & heat reduction, sedimentation & filtration ability

330. Thank You for Coming….. Let’s Build it Green Together