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• Part Number:
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1926
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• Part Title:
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Safety and Health Regulations for Construction
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• Subpart:
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O
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• Subpart Title:
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Motor Vehicles, Mechanized Equipment, and Marine
Operations
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• Standard Number:
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• Title:
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Pile driving equipment.
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• GPO Source:
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1926.603(a)
General requirements.
Boilers and piping systems which are a
part of, or used with, pile driving equipment shall meet the applicable
requirements of the American Society of Mechanical Engineers, Power Boilers
(section I).
All pressure vessels which are a part
of, or used with, pile driving equipment shall meet the applicable requirements
of the American Society of Mechanical Engineers, Pressure Vessels (section
VIII).
Overhead protection, which will not
obscure the vision of the operator and which meets the requirements of Subpart
N of this part, shall be provided. Protection shall be the equivalent of 2-inch
planking or other solid material of equivalent strength.
Stop blocks shall be provided for the
leads to prevent the hammer from being raised against the head block.
A blocking device, capable of safely
supporting the weight of the hammer, shall be provided for placement in the
leads under the hammer at all times while employees are working under the
hammer.
1926.603(a)(6)
Guards shall be provided across the top
of the head block to prevent the cable from jumping out of the sheaves.
When the leads must be inclined in the
driving of batter piles, provisions shall be made to stabilize the leads.
Fixed leads shall be provided with
ladder, and adequate rings, or similar attachment points, so that the loft
worker may engage his safety belt lanyard to the leads. If the leads are
provided with loft platforms(s), such platform(s) shall be protected by
standard guardrails.
Steam hose leading to a steam hammer or
jet pipe shall be securely attached to the hammer with an adequate length of at
least 1/4-inch diameter chain or cable to prevent whipping in the event the
joint at the hammer is broken. Air hammer hoses shall be provided with the same
protection as required for steam lines.
Safety chains, or equivalent means,
shall be provided for each hose connection to prevent the line from thrashing
around in case the coupling becomes disconnected.
Steam line controls shall consist of
two shutoff valves, one of which shall be a quick-acting lever type within easy
reach of the hammer operator.
1926.603(a)(12)
Guys, outriggers, thrustouts, or
counterbalances shall be provided as necessary to maintain stability of pile
driver rigs.
Pile driving from barges and floats.
Barges or floats supporting pile driving operations shall meet the applicable
requirements of 1926.605.
Pile driving equipment.
Engineers and winchmen shall accept
signals only from the designated signalmen.
All employees shall be kept clear when
piling is being hoisted into the leads.
When piles are being driven in an
excavated pit, the walls of the pit shall be sloped to the angle of repose or
sheet-piled and braced.
When steel tube piles are being
"blown out", employees shall be kept well beyond the range of falling
materials.
When it is necessary to cut off the
tops of driven piles, pile driving operations shall be suspended except where
the cutting operations are located at least twice the length of the longest
pile from the driver.
When driving jacked piles, all access
pits shall be provided with ladders and bulkheaded curbs to prevent material
from falling into the pit.