The Purpose of a Retaining Wall
- To hold in or hold out soil, fines and water
- To recover usable space on a sloping site
- A beautifying addition to a suitable space
- A structural element to support indirectly a significant structure [building,swimming pool etc]
Importance of a retaining wall
Retaining Wall Collapse
Can be messy and expensive to fix. Underpinning of this retaining wall will be necessary before wall can be reinstated. Below is one approach.
The helical soil nail consists of helices attached at regular intervals to the entire shaft,including extensions. The result is a helical device with helices spread along the entire length of shaft.The common helical soil nails are 2.1 m long lead or extension with 200 mm diameter helices spaced at 700 mm intervals along the shaft.
An engineer will be needed to draw up details for any structural retaining wall as failure is not an option.
Structural Details concepts for typical applications
Help manual by Boral: http://www.boral.com.au/masonry-design-guide/pdf/BOR11999_SA_Manual_Bk4.pdf