Slope
Trench Safety
Soil Classification
Grab Bag
OSHA Standards
100
3/4:1
What is maximum slope for class A soil
100
18"
What is the minimum distance shield must be above ground level.
100
The most stable of soil
What is class A.
100
100 lbs
What is the weight of 1 cubic foot of soil.
100
Tables and charts approved by a P.E. and used to design protective systems.
What is Tabulated Data.
200
2'
What is the minimum distance your spoil pile can be from the edge of an excavation
200
One who is capable of identifying existing and predictable hazards who has authorization to eliminate them.
What is competant person.
200
Im smaller than gravel, but larger than silt.
What is Sand.
200
The placement of supports which hold vertical excavation walls in place
What is Shoring.
200
OSHA excavation standards.
What is 1926 subpart P
300
1:1
What is maximum slope for class B soil.
300
Trench
What is excavation that is deeper than it is wide, but no wider than 15'.
300
Take a moist sample of soil and mold it into a ball and then roll it into 1/8" threads to see if it breaks.
What is Plasticity Test.
300
At what height do you have to provide either stairs, ladders, or ramps leading into excavations.
What is 18".
300
These two things must be done BEFORE every work day and as changes occur.
What are inspections and fill out forms.
400
1 1/2:1
What is the maximum slope for class C soil
400
trenches and excavations can both be dangerous and considered one of these?
What is confined space
400
Tool used to test soil strength.
What is Penetrometer.
400
6"
What is the maximum allowable gap between shield walls and face of excavations.
400
This states that each employer shall furnish a place of employement that is free from recognized harzards.
What is General Duty Clause.
500
20'
What is maximum depth of a excavation before you have to get a P.E. to design and approve protective system.
500
The greatest angle above the horizontal plane at which excavated material will not slide.
What is angle of repose.
500
It will eventually collapse when excavated.
What is soil.
500
If Im present all soil will be classified as a C.
What is Water
500

When was the OSH Act established?

What is 1971

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