Injury Illness Prevention Plan - Flipbook - Page 193
Health and Safety Program Manual
Teamwrkx
Construction, Inc.
Issue Date: 10/16/23
Revision Date: 10/16/23
Trenching and Excavation
Reference: A-15
The bottom of the cylinder shall be no higher than four feet from the bottom of the excavation. (Two feet of
trench wall may be exposed beneath the bottom of the rail or plywood sheeting, if used.)
Three vertical shores, evenly spaced, must be used to form a system.
Wales are installed no more than two feet from the top, no more than four feet from the bottom, and no more
than four feet apart, vertically.
Typical installations of aluminum hydraulic shoring:
x
Vertical aluminum hydraulic shoring (spot bracing)
x
Vertical aluminum hydraulic shoring (with plywood)
11