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WorksheetsTrenching and Shoring 1
Total questions: 5
Worksheet time: 4mins
What are 4 reasons for injury?
Attitude, Lack of Training, Insufficient Enforcement & Costs
Poor Posture, Negligence, Unsafe Conditions and Hazards
Carelessness, Unsafe Practices, Inadequate Supervision & Risk
Negligence, Unsafe Environments, Poor Maintenance and Hazards
What are Requirements for Protective Systems (Select all that apply)
Discuss requirements for protective systems to be held by foreman at jobsite.
Excavation less than 5 feet in depth may require shoring if there are indications of trench failure
Excavations 5 feet or greater in depth, unless in entirely stable rock
Tools needed for protective system (Ladder, Shoring, etc.)
[Blank - 3-letter word] Slide is when the top of the wall caves in and is a less severe version of a shear wall collapse.
(a)
S____ W___ C_______ happens when cubic yards of soil instantly fall.
(a)
Which of the following are considered causes of Trench Failure? Select all that apply:
Sliding Failure
Subsidence
Toppling
Cracking
Boiling
