silva cells & utilities - greenmax...silva cells & utilities how to integrate silva cells...
TRANSCRIPT
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Silva Cells & UtilitiesHow to integrate Silva Cells into the built environment
I. Running existing utilities through framesII. Running utilities outside of frames (utility corridors)III. Planning for the futureIV. Repairs & Maintenance
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+/- 18” (45 cm)
+/- 12” (30.5 cm)
+/- 16” (40.5 cm)
48” (122 cm)24” (61 cm)
The open design of the Silva Cell frames allows underground utilities to be run though the system
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Running Existing Utilities
Through Silva Cell Frames
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Electric
Irrigation
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Stormwater
Irrigation
Electric
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Use a combination of these techniques where there are multiple utilities
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Running utilities outside of framesII.Filling gaps with aggregateIII.Bridging utilities with Silva CellsIV.Bridging utilities with concrete slabs
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Fill gaps with aggregate
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Fill area around utilities with aggregate
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Fill area around utility with aggregate
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Fill area around base with aggregate
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Bridging Utilities with Silva Cells
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Bridging Utilities with Concrete Slabs
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Concrete slab over utilities
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New Construction: Utility Corridors & Planning AheadIII.Placing utilities within Silva Cells IV.Placing utilities adjacent to Silva CellV.Planning for the future
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Establish utility corridors for new installations
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Place utilities just outside of Silva Cells but within excavation area
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Place utilities adjacent to Cells:Add Spare Conduits for Future Capacity
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Future directional boring
Silva Cells
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Caution tape marks utility corridor
Mark utilities for ease of future locating
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Register Silva Cells as an underground facility with the local one-call agency and make it a permanent part of the notification system
Register Silva Cells as an Underground Utility
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Electromagnetic locators are able to find a 2” (5 cm) copper water line running through the Silva Cells without interference.
GPR locators detect the limits of the Silva Cell system.
Ground Penetrating Radar used to locate perimeters of Silva Cell system
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Repairs & Maintenance
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1. Locate - Call Local One-Call Agency
2. Excavate- Excavate to level of geotextile- Expose geotextile fabric, cut and fold back, then remove decks- Use a Hydro-Vac or hand dig out soil from area of excavation
3. Repair or add service (lateral)
4. Replace Silva Cells- To replace Silva Cells follow Operations Manual procedures (see www.deeproot.com)
5. Replace permanent surfacing- Replace or patch paving
**for further details, see www.deeproot.com or call 415-781-9700**
Recommended steps for repairing existing utilities or installing new ones inside the system
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Project Examples
1) Planned water service repair (Winnipeg, MB)
2) Simulated emergency repair (Toronto, ON)
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Planned water service repair (Winnipeg, MB)
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Site of repair
Broadway Avenue water service repair (Winnipeg, MB)
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Area of excavation
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Silva Cells
Watermain whereconnection was made
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Curb
3 rows of Silva Cells
Irrigation line
Water mainunder curb
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Repair completed!
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Simulated Emergency RepairToronto, Ontario
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Water pipe installed Hole cut into pipe to simulate future break
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2 layer Silva Cell system installed over pipe
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Silva Cell Decks installed
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Preparing for utility access test
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Water leak is evident
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Concrete is cut for easy removal
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Removal of concrete slab
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Cutting away Geotextile/Grid
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Excavating soil and Silva Cells
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Excavating soil and Silva Cells
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Excavating Soil and Silva Cells
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Pipe with hole is revealed
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Temporary Repair: Use clear stone or similar foundation material (unshrinkable fill etc.) until a solid foundation can be maintained.
Patch temporarily as per local requirements.
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Permanent Repair: Option 1Recommended for larger area Silva Cell excavations
Excavate to base of 1st Silva Cell and grade a flat base
Install Silva Cells following instructions for new installation
Place geotextile on top of deck and rebuild sidewalk baseand final surface treatment
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Permanent Repair: Option 2Recommended for smaller Silva Cell excavations
Excavate to base of 1st Silva Cell and grade a flat base
Install clear stone to connect up the soil volumes between frames.
Rebuild final surface treatment.
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Rebuild permanent surface treatment
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In conclusion:•Many options for working in and around new and existing utilities•Plan for the future where possible•Planned and emergency repairs are simple