4244 Depth of Foundations 1 Except as permitted in Sentence 2 the bearing

4244 depth of foundations 1 except as permitted in

This preview shows page 280 - 282 out of 689 pages.

4.2.4.4. Depth of Foundations (1) Except as permitted in Sentence (2), the bearing surface of a foundation shall be below the level of potential damage, including damage resulting from frost action , and the foundation shall be designed to prevent damage resulting from adfreezing and frost jacking. (2) The bearing surface of a foundation need not be below the level of potential damage from frost where the foundation , (a) is designed against frost action , or (b) overlies material not susceptible to frost action . 4.2.4.5. Sloping Ground (1) Where a foundation is to rest on, in or near sloping ground, this particular condition shall be provided for in the design. 4.2.4.6. Eccentric and Inclined Loads (1) Where there is eccentricity or inclination of loading in foundation units , this effect shall be fully investigated and provided for in the design. 280
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4.2.4.7. Dynamic Loading (1) Where dynamic loading conditions apply, the effects shall be assessed by a special investigation of these conditions and provided for in the design. 4.2.4.8. Hydrostatic Uplift (1) Where a foundation or any part of a building is subject to hydrostatic uplift the effects shall be provided for in the design. 4.2.4.9. Groundwater Level Change (1) Where proposed construction will result in a temporary or permanent change in the groundwater level , the effects of this change on adjacent buildings shall be fully investigated and provided for in the design. 4.2.4.10. Permafrost (1) Where conditions of permafrost are encountered or proven to exist, the design of the foundation shall be based upon analysis of these conditions by a person especially qualified in that field of work. 4.2.4.11. Swelling and Shrinking Soils (1) Where swelling or shrinking soils , in which movements resulting from moisture content changes may be sufficient to cause damage to a structure, are encountered or known to exist, such a condition shall be fully investigated and provided for in the design. 4.2.4.12. Expanding and Deteriorating Rock (1) Where rock that expands or deteriorates when subjected to unfavourable environmental conditions or to stress release is known to exist, this condition shall be fully investigated and provided for in the design. 4.2.4.13. Construction on Fill (1) Buildings may be placed on fill if it can be shown by subsurface investigation that, (a) the fill is or can be made capable of safely supporting the building , (b) detrimental movement of the building or services leading to the building will not occur, and (c) explosive gases can be controlled or do not exist. 4.2.4.14. Structural Design (1) The structural design of the foundation of a building , the procedures and construction practices shall conform with the appropriate Sections of this Code unless otherwise specified in this Section. 4.2.5. Excavations 4.2.5.1. Design of Excavations (1) The design of excavations and of supports for the sides of excavations shall conform to the requirements of Subsection 4.2.4. and this Subsection.
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