Essential for schemes with extensive ground preparation
obtain information on the nature and distribution of ground conditions,
a sampling process so risk of incomplete information remains,
Often carried out in stages both prior n during construction
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What are the advantages of site investigation?
· They are able to get background information about the history of the project site.
· It offers a background study on the soil maps as well as samples that have been taken on adjacent projects which can provide a basis for comparison.
· The geotechnical engineer is able to carry out an appropriate number of soil excavations and borings based on the scope definition.
· Allows identification of rock and groundwater locations.
· They are able to recommend the appropriate construction techniques based on the investigations.
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What are the factors that influence buying a site?
Price - Cost can be impacted by geometric shape, history (contamination), constraints of access, services, proximity of other developments
Size and shape - Distribution of buildings, number of floors required to achieve the desired floor area
Location – Architectural style, neighbourhood sensitivities, ease by which regulatory approvals are obtained,
Natural characteristics – Topography (flat raised ground), ponds, trees
Load-bearing capabilities – Variable ground conditions even within the same site they can be remedied, but at a cost, likely impact on foundation
Man-made features – Previous development/buildings and occupation of the site, possible contamination, architectural/historical features, demolition, planning conditions.
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