Efficient design of piled foundations for low-rise housing Design guide






Performance of low-rise housing foundations

2.1 Housing foundation requirements

Details of the requirements of the Building Regulations are discussed in Appendix B.

Approved Document A of the Building Regulations,

[2]

requires the foundations to be designed to transmit the building loads into the ground safely, and without causing movements of the structure or adjacent ground that may impair the stability of any part of an adjacent building.

In addition to the requirements of the Building Regulations, which are concerned primarily with health and safety, the foundation design must ensure that the movements associated with both the loading effects of the house (which can lead to settlement) and external effects associated with the underlying ground (which can lead to subsidence or heave) are within acceptable or tolerable levels.

Atkinson

[3]

presents definitions of settlement and subsidence as follows:

Settlement: Movement in the structure caused by the weight of the building

compressing the underlying ground.


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