Offsite work includes installation of storm, sanitary, water, hydro/tel and gas mains on busy West Mall and Agronomy Road around the new Vantage College facilities. Trench excavation up to six meters deep, conflict avoidance with existing utilities, and traffic management present constant challenges for the crew. Onsite work includes installation of storm, sanitary mains as well a 175m3 sistern system consists of 2.4m x 2.4m segments of precast box culvert 5m deep, all done in extremely confined space.
The contract for this project involved utility relocation, as well as excavation and shoring for Phase 2 of Wall Financial's Central Park project. First, Hall Constructors relocated 110 meters of 1350 diameter storm pipe and 110 meters of 750 diameter sanitary pipe which are both owned by Metro Vancouver. Once those utilities were moved off of the property, Hall completed the 43,000 m3 excavation by using a combination of secant piles and conventional shotcrete to shore the dig. This project also included installation of BC Hydro, Telus and storm/sanitary services for both phases of the development.
Scope of the project was to place two individual classes of aggregate to a total depth of 2.17 meters for the total length of the 2000 lm of bored tunnel.
Project consisted of select demolition of BC Place, Jet Grout Piles, Driven Pile Piles, Bulk / Detailed / Mechanical Excavation complete with Shotcrete and Anchor Shoring system. Total volume of material removed was 160,000 m3 of which approximately 45,000 m3 was contaminated. Schedule was a major factor on this project and Hall Constructors was able to deliver the excavation 2 months ahead of schedule.
-Leachate Pump Station upgrades including application of poly-urea coating in leachate tanks, several road crossings, HDPE air, leachate and gas pipe-lines, supply & installation of gas well de-watering system
Project consisted of site preparation works to allow for the installation of 354 - 1 metre diameter Secant Piles to an average depth of 17 metres below existing grade.
This 15,000 m3 excavation and shoring project was completed for Marcon Construction in 2015. Though the site proved difficult, Hall was able to work with the Owner to deliver the excavation on time. Extra measures were taken to ensure that the neighboring creek was protected and that silt from the excavation was diverted away from the waterway. Hall also used it's ocean dumping facility to provide the most economic soil disposal option on this project.
The project consisted of an approximate 13,100 m3 Bulk & Detail excavation including shotcrete & Anchor shoring. Limited access and a long and narrow site made this project a challenge to complete on schedule.
Installation of a 1200 mm dia Concrete Storm Sewer, road widening from two lanes to four, addition of a multi-use bike path, traffic signalization and street-lighting.
Excavated and hauled offsite 46,000 m3 of non-contaminated and 10,000 m3 of contaminated (CL+ & RL+) soil. Placed 11,000 m3 of imported fill. In addition, 3,700m2 of SedimentLok 200+ m2 of SierraScape retaining wall were built for erosion control and slope stablization. Job completed on budget and ahead of schedule.