Pennsylvania Code (Last Updated: April 5, 2016) |
Title 34. LABOR AND INDUSTRY |
PART I. Department of Labor and Industry |
Chapter 43. Tunnel Construction and Compressed Air Work |
SubChapter A. TUNNEL CONSTRUCTION AND WORK IN COMPRESSED AIR |
Section 43.92. Sinking and bracing caissons
Latest version.
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No caisson shall be dropped by the method of removing the air pressure therein for a greater depth than 24 inches, and then only by the person in charge at the time. All caissons shall be properly and adequately braced before loading with concrete or other weight.