CSA PLUS 4011.1:19 PDF Download

CSA PLUS 4011.1:19 is a guideline developed by CSA Group to provide technical information on the design and construction of foundations in permafrost regions. It is an update to the previous edition published in 2010 and is intended to supplement the information provided in CSA PLUS 4011.

The purpose of this guideline is to offer detailed technical information on various foundation systems, selection criteria, ground conditions, and related issues in permafrost regions. It is not a design manual but serves as an informative resource for developers, designers, the general public, and other stakeholders involved in infrastructure development in permafrost terrain.

The document is structured as follows:

- Clause 2 provides information on the permafrost of Canada, including its distribution, ground temperatures, ice content, salinity, terrain sensitivity, surface hydrology, and the effects of a changing climate on building foundations.

- Clause 3 discusses important considerations for foundation design in permafrost terrain, including ground temperature, soil strength, creep, pore water salinity, surface disturbance, geotechnical investigations, and site preparation. It also includes a flowchart for foundation selection and covers topics such as thaw settlement, frost heave, frost jacking, and adaptive design.

- Clause 4 addresses logistics and constraints specific to foundation design and construction in northern regions.

- Clauses 5 and 6 describe the attributes of shallow and deep permafrost foundation systems and provide illustrations.

- Clause 7 discusses the role and uses of insulation materials in foundation design and construction.

- Clause 8 provides a discussion on the role, merits, and tasks associated with operational monitoring and inspection.

- Annex A serves as a glossary of concepts and terms used in the guideline, while Annex B lists the bibliographic information for the referenced documents.