Installation of post and panel Retaining Wall
Work out which post needs to be installed first, usually the first post is against the building or fence or in a corner position etc and needs to be in the exact location.
Place the first post into the hole (see engineer detail for required hole dimensions) dotted line in figure 1 Represents location of string line. the string line is used for height and straightness so be sure it is pulled very tight.
Use a spirit level on the side of the post and make it plumb (left to right).
The front of the post should lean back towards the load until the bubble in the spirit level comes to the line (see figure 2) if higher than 600mm off set your level by taping a 15x15mm block to the side of your level, to achieve 10mm of lean per panel to meet engineering. (see figure 2)
Mix clean sand with cement in a cement mixer or wheelbarrow at a ratio of 5 parts clean sand and to 1 part cement plus enough water for work ability