Library
The ABIS library is a collection of useful reference material relating to buildings and their problems as well as timber pests such as termites.
The library is a combination of material written by ABIS as a result of our own research and practical experience together with useful information gleaned from other authoritative sources.
Rotating
Retaining walls must resist lateral pressures which are typically smallest at the top of the wall and increase toward the bottom. These are generated by loose soils attempting to move forward and downslope due to gravity or, in some cases, water pressure that is not dissipated by a drainage system. Earth pressures will push the wall to lean/ rotate forward or overturn it if not properly addressed.
WIKIPEDIA ENTRY FOR RETAINING WALL.