Distress is evidenced by such phenomena as the development of fissures in the face of or adjacent to an open excavation the subsidence of the edge of an excavation the slumping of material from the face or the bulging or heaving of material from the bottom of an excavation the spalling of material from the face of an excavation and ravelling, i.e., small amounts of material such as pebbles or little clumps of material suddenly separating from the face of an excavation and trickling or rolling down into the excavation. The requirements of this appendix apply when the design of sloping and benching protective systems is to be performed in accordance with the requirements set forth in § 1926.652(b)(2).Īctual slope means the slope to which an excavation face is excavated.ĭistress means that the soil is in a condition where a cave-in is imminent or is likely to occur. This appendix contains specifications for sloping and benching when used as methods of protecting employees working in excavations from cave-ins.
0 Comments
Leave a Reply. |