Hazard Recognition in Trenching and Shoring
I. Introduction Excavating is recognized as one of the most hazardous construction operations. OSHA recently revised Subpart P, Excavations , of 29 CFR 1926.650 , 29 CFR 1926.651 , and 29 CFR 1926.652 to make the standard easier to understand, permit the use of performance criteria where possible, and provide construction employers with options when classifying soil and selecting employee protection methods. This chapter is intended to assist OSHA Technical Manual users, safety and health consultants, OSHA field staff, and others in the recognition of trenching and shoring hazards and their prevention. II. Definitions A. Accepted Engineering Practices are procedures compatible with the standards of practice required of a registered professional engineer. B. Adjacent Structures Stability refers to the stability of the foundation(s) of adjacent structures whose location may create surcharges, changes in soil condition...