The Legacy is a twin tower mixed use residential and commercial development located adjacent to the Holdom Avenue Skytrain. Davies Geotechnical Inc. (DGI) provided geotechnical engineering consulting services to the developer Embassy Development Corporation beginning at the project planning stages and finishing at the end of construction.
The site is located within the Still Creek basin where a unique and particularly challenging set of geologic and geotechnical conditions exist. The site is underlain by very weak, soft and highly sensitive peat and organic silts and metastable silt and silty clay. Relatively high artesian pore pressure conditions were encountered at the base of the bog deposits.
Davies Geotechnical Inc. utilized a number of analytical techniques, including finite element methods to complete the geotechnical assessment of the site in particular the response of the pile supported building to the design earthquake loading.
PDA and full scale pile load testing was utilized to verify pile capacities and increase pile efficiency.