Source: https://www.dir.ca.gov/title8/sb17a35.html
Timestamp: 2019-04-20 17:10:24+00:00

Document:
NOTE: The principal hazards of all shaft work are falls of persons; falling materials, including rock from operating skips and skip pockets; and skips in adjoining compartments which may strike workers or materials being handled.
NOTE: The hazards of falling persons and falling materials decrease as the incline of the shaft grows flatter, but a fall in a 20 degree shaft may cause painful or even serious injury.
§7111. Shaft Work, Maintenance, and Repair--General.
§7113. (19-110). Protection Against Falling Materials.
§7114. (19-110). Deepening an Operating Shaft.
§7115. Special Power-Driven Shaft Equipment.
§7116. Hoisting While Sinking or Enlarging Shaft.
§7118. (3-20). Shaft Safety Pillars.

References: §7111

§7113

§7114

§7115

§7116

§7118