Construction of REM station Édouard-Montpetit
Nature of the work
The construction of the station will require digging rock and building the entire infrastructure for the station. Work began in July 2018 and will continue until 2022.
From September 2018 to summer 2019, phase 2 of construction will take place. This phase involves excavating the shaft of the future REM station by controlled blasting. Construction work also requires drigglin and the debris from the controlled blasts are collected and loaded into trucks, within a dedicated secure corridor. Evening and night work may be necessary. Exceptionally, work may also take place on some weekends in order to consolidate selected infrastructure
⚠ Starting July 17, for about 8 weeks, the enlargement of the shaft will require longer controlled blastings (approximatively 6 seconds).
⚠ Beginning March 18, a new fixed schedule has been implemented for controlled micro-blasting to continue the excavation phase of the future REM station’s shaft. Four potential blasting windows are planned. It is expected that two to three blasts per day will be required in most cases.
To facilitate excavation for Édouard-Montpetit station, which will be underground, controlled blasting of small sections of rock will be carried out. Vibrations may be felt for several seconds, and the explosions may be audible.
During the controlled blasts, vehicle and pedestrian traffic around the site will be stopped for several minutes. Signallers will secure the perimeter.
NouvLR, the consortium in charge of REM construction, has called on leading experts and is using the techniques best suited to the area. These measures are complemented by a 24‑hour program to monitor and supervise noise, air quality and vibration throughout the work.
Impacts and mitigation measures
The work will generate noise, vibrations and dust. The sidewalk will be closed in front of Pavillon Marie-Victorin, but no road closures are planned. The aim of the REM project office and NouvLR consortium is to minimize impact on surrounding residents as much as possible and ensure safety by implementing all appropriate measures, including:
- A dedicated passage for trucks with concrete guard rails
- A worksite zone and lane for trucks enclosed by acoustic screens
- Use of a dump truck to limit noise while removing debris and loading trucks
- Use of a sprayer (fine droplets of water) to keep dust down
- Blasting mats to eliminate projectiles during controlled blasting operations and to reduce noise and dust
- Safe detours for cyclists and pedestrians and presence of signallers
- Monitoring and supervision program throughout the work to measure noise, air quality and vibrations
- Continuously raising workers’ awareness
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