All of these responses are correct however it depends on the grade of soil you're working with. Look up OSHA excavation safety and you'll find your answers. Training videos are available on YouTube and OSHAs website.
Re: Shoring and Piling
Member #: 118409
Registered: 7/7/2019
Posted:
83
Name:
JC
Company:
GLG
Occupation:
Consulting
Location:
USA
Personal:
late 40s
Experience:
~29 years
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