Substructure

What is this symbol

• Datum

• Ordnance survey bench mark

• Temporary bench mark

• Ground level

Substructure relates to...?

• Everything above DPC

• Everything below ground level

• Everything below floor level

• Everything below DPC

A pad foundation is used...?

• When the subsoil is poor

• For high rise buildings

• For individual piers, columns and stanchions

• To cover the footprint of the building

A raft foundation...

• Covers the footprint of a building

• Is used to build on hills

• Is used for high rise buildings

• Is used around the perimeter of buildings

Piled foundations are used when...?

• The sub soil is good

• To support individual piers or columns

• Constructing high rise buildings

• Constructing garden sheds

Pile foundations can be driven or drilled

• True

• False

Trench fill strip foundations are constructed...?

• With trench blocks

• With concrete filled trenches

• With engineering bricks

• With shuttering

DPM stands for

• Deep proof membrane

• Damp porous membrane

• Damp proof membrane