Skip to content

LRT Slope Protection at Retaining Wall

  • Shotcrete

LRT Slope Protection at Retaining Wall

HC Matcon (HCM) and RWH Engineering (RWH) reacted quickly after being contacted to provide a design-build solution for a slope failure that occurred during the excavation for a new retaining wall at the Eglinton LRT project. The 14m (45’) high slope was approximately halfway excavated for a permanent block retaining wall when it a sudden slip failure occurred creating concern for the adjacent properties. RWH designed a slope retention system with soil nails and shotcrete facing to remediate the slope and allow for continued excavation. Using a TEI drill mounted on an excavator, HCM was able to reach the top of slope to install soil nails.  Shotcrete was applied by a nozzleman in an elevated work platform. Once the exposed portion of the failed slope was stabilized, excavation was able to resume and HCM continued installing additional lifts of anchors and shotcrete to the base of the finished slope for a total protected area of 1250m2 (13,500 SF).

HCM and RWH provided an efficient solution, adapting the slope protection design to assist with the durability of the permanent retaining wall. Real-time design changes were made onsite to accommodate additional area required after installation had already commenced, enabling the original retaining wall construction to resume as fast as possible. 

 

Location: Toronto, ON

Customer: Metrolinx

LRT Slope Protection at Retaining Wall
LRT Slope Protection at Retaining Wall
Upper House Condominiums - Caisson Wall Piles and Lagging

Upper House Condominiums

/ ,
Upper House Condominiums HCM completed the shoring for the eight storey Upper House Condominium project which required a 12m deep excavation for two levels of underground parking. A tied-back shoring
Read More

Lakeview Water Treatment Plant

/ ,
Lakeview Water Treatment Plant This project was part of the second phase of an expansion program to the region of Peel’s Lakeview Water Treatment Plant. Given the information provided at
Read More

Highland Creek WWTP

/
Highland Creek WWTP Due to increased population and the requirement for treating excess amounts of waste water, Highland Creek WWTP underwent a significant upgrade to provide clean water for the
Read More
Telus Sky tower - HC Matcon

Telus Sky tower

/
Telus Sky tower The Telus Sky tower will be the 3rd tallest building in Calgary with the deepest basement excavation in western Canada. HCM Group took on the challenge of
Read More

Midtown Lofts

/
Midtown Lofts On this project, HCM in conjunction with RWH Engineering Inc. (RWH), provided the owner with a complete design-build package and precision monitoring services for an 8.5m deep temporary
Read More

Alloa Feedermain

/
Alloa Feedermain This project involved installation of 3 watertight caisson wall shafts. Two rectangular secant pile wall shaft approx 12m deep and one 6m diameter compression ring shaft approx 7m
Read More