Current through Register Vol. XLI, No. 37, September 13, 2024
Section 38-7-3 - Excavating3.01. Highwall overburden shall be sloped to minimize slides and overhanging ledges and all loose material scaled.3.02. If the highwall shows evidence of movement, or appears to be weakened in any way, the area shall be made safe, or abandoned and dangered off.3.03. When open pit mines work at night, the vicinity in which the work is performed shall be well illuminated.3.0.4. When an open pit mine is worked over an underground limestone or sandstone mine, cooperation between the underground and surface shall be established to assume the safety of persons in the mines.3.05. When taking up the floor of an "open pit" mine over top of a limestone or sandstone mine, the opening of the mine shall be scaled and kept safe at all times.3.06. In the event of the collapse of the floor of an open pit mine into a limestone or sandstone mine, both mines shall be immiediately closed, until this condition is made safe.3.07. Removal of any overburden from a limestone or sandstone mine within 100 feet of an active opening is prohibited while the mine is working,3.08. The driving of coyote tunnels shall be governed as follows: (a) A volume of 600 cubic feet of air per minute shall be circulated to the headings.(b) Explosives adaptable to the general location shall be used.(c) Explosives shall be detonated by permissible firing devices.(d) Entrance to tunnel shall be kept free of loose rock and over-hanging ledges.(e) Roof and walls shall be properly scaled.(f) Work in and around the tunnel shall be done in a safe manner.3.09. Persons scaling highwalls shall wear a safety harness that is adequately secured.3.10. Blasted material shall be loaded in such a manner as to minimize the danger of rock slides endangering workmen.