What is a cut-off wall and retaining wall and how can it be used to improve sub-surface drainage

Описание к видео What is a cut-off wall and retaining wall and how can it be used to improve sub-surface drainage

Matt Cornell from Cornell Engineer, Brisbane Structural Engineers answers a question from the homeone.com.au forum. This question is about how to reduce sub-surface water with a cut-off wall and how to prevent scouring of existing concrete footings from a neighbour's surface water. We also touch on excavating under a house to create more space.
This video also explains:
- what is a cut-off trench and what is a cut off drain?

Also, check out our drainage on sloping land video:    • How to fix house drainage problems ar...  

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