groundworks question

[climber101]

Hi,

am going to be digging 12 off 600mm square holes approx 1200mm deep. Due to various jobs/travelling/commitments i'm not going to get a good run at this at all and take ages to do what could be done a lot quicker. Ground seems fairly loose from first hole i have started and am concerned by the time i finished them all for barrowing in concrete the side walls will have caved in a bit and not have good straight sides on them.

Is there a trench wall liner that you can get that is ok to leave in place when you pour in concrete? I have seen something that looked like this on a building site before but not sure what make the material was or whether it is acceptable

Thanks in advance

 

[Norcon]

What are these monuments in the ground for?

 

[Chukka63]

dig out and concrete the same day.should only be 1 or 2 days work at most how youve described the ground conditions

 

[noseall]

You will not be able to dig 600 x 600mm holes 1.2m deep, they will need to be a fair bit bigger at the top end.

 

[mater]

you will have to dig it twice the size to get in it, then shutter it to get the size required. can you not get a machine to it ?