foam concrete backfill for mse walls with poor...

Distance (m)

236

234

232

230

228

226

224

222

220

218

216

214

212

210

208

206

Eleva

tion (

m)

-10 -5 0 5 10 15 20 25 30 35 40 45 50

Lower Clay

Upper ClayGranular Back�ll

Multi-use Path

AbutmentFoam Concrete

Westbound

Chief Peguis Trail

236

234

232

230

228

226

224

222

220

218

216

214

212

210

208

206

PavementH = 4.5

41 H = 3.1

Silt

1.73

1.80 1.90

2.00

1.80

1.70

1.80

0 5 10 15 20 25 30 35 40 45 50

160

140

120

100

80

60

40

20

0

De�ection (mm)

Appli

ed Lo

ad (k

N)

Reinforcing mats being placed around Bridge Piles.

Foam Concrete being placed in the MSE back fill.

Foam Concrete being poured in stages along Rothesay Avenue.

Completed Abutment – North Side.

Fluid Foam Concrete setting in place.

Completed Abutment – South Side.

Figure 1. North Abutment Drained Conditions After Construction Seismic Figure 2. Rothesay Street Approach Embankment St. 0 + 370 Drained Condition After Construction Seismic Figure 3. Cross section of North Abutment.

Figure 6. Rothesay Ave. Wall Section at STA. 0 + 250Figure 5. Pull-Out destructive Testing on a W7.0 gauge wire mat

Figure 4. Construction Photographs

Foam Concrete Backfill for MSE Walls with Poor FoundationsChief Peguis Trail Extension, Winnipeg • Derek Essery, P. Eng., Technical Director, Engineered Products, Atlantic Industries Limited (AIL), dessery@ail.ca