S-2.1, r. 14 - Regulation respecting occupational health and safety in mines

Full text
77. An underground excavation under the influence of a body of water may not be begun without there being obtained from an engineer plans and specifications accompanied by studies covering the following elements;
(1)  a study of the surface of the site under which the surface pillars will be located;
(2)  a soil distribution study;
(3)  a study of the mechanical properties of the soil;
(4)  a study of the mechanical properties of the rock to be excavated;
(5)  a study of the hydrogeological conditions;
(6)  the data necessary for a surface pillar checking and maintenance system.
The plans and specifications and the accompanying studies shall be kept at the mine site and shall be available at all times.
O.C. 213-93, s. 77.