±20,000 lm
Project description
The Kingston Road project consisted of a residential development located at the southeast corner of the intersection of Kingston Road and Valley Farm Road in Pickering, Ontario. The west section of the site is to include a proposed high-rise building, while the east section is to be developed with townhouse blocks. The project is to be constructed and developed by the Daniels Corporation.
Ground conditions
The soils in the project area consist of varied fill overlying a soft silty clay material on the easternmost section of the site. Towards the west, the native soils underlying the fill consist of clayey silt till. It was determined that the soft silty clay in the east of the site was unsuitable for the support of the proposed development. The silty clay soil extends to depths ranging from 6.5 to 14m. Groundwater was found to be 3-4m below ground surface typically
Solution
Menard proposed the use of wick drains and pre-loading to consolidate the soft silty clay on site and mitigate potential settlement concerns. In total, over 20,000 linear meters of wick drains were installed in the future development area.