Minimising risk

See a simple checklist for minimising risk in basement design:

Initial design should consider:

• Anticipated current and future use of basement
• Anticipated current and future ground water conditions
• Orientation of building relative to ground water
• Current and future daylighting and ventilation requirements
• Simplifying shape to facilitate waterproofing
• Location and access on site to facilitate construction
• Avoiding penetration of waterproof membrane for services where possible

Site investigations should include:

• Appropriate qualitative assessment to appropriate depth
• Geotechnical investigation to indicate current and anticipated future ground water regime
• Tests to indicate soil properties and surface loading to establish lateral earth pressures

Detailed design should consider:

• Correct choice of construction and waterproofing to suit ground conditions and use
• Integration of structural and waterproofing design to best practice recommendations
• Three-dimensional structural loads of building, ground and water pressure with attention to corners
• Access for future maintenance and alterations
• Obtaining specialist advice particularly for highwater tables

Construction should include:

• Supervision and checking (both essential)
• Experienced and skilled operatives
• Instigation of construction warranties

In use:

• Maintenance and operation of drainage, pumps and ventilation systems