Any excavations deemed necessary to use shoring will be handled on an individual basis. The proper materials or system to be used will be determined through a combined effort of the Competent Person, field supervision and the Safety and Health Manager.
Generally, shoring systems may include the following:
Designs for timber shoring in trenches shall be determined by the Competent Person or registered professional engineer. For aluminum hydraulic shoring, designs will strictly meet or exceed requirements expressed in the manufacturer’s tabulated data.
Designs using manufacturers’ tabulated data may be used; deviation is not allowed.
Designs using other tabulated data may be used provided the data is in writing and includes: Explanatory information to aid the user in making a selection, the criteria determining the selection, and the limits on the use of the data. At least one copy of the information, including the identity of the registered professional engineer, must be kept at the worksite during construction of the protective system.
Design by a registered professional engineer. Design systems not using any of the three previously cited options must be approved by a registered professional engineer, shall be in writing, and include the identity of the registered professional engineer and details such as sizes, types, and configurations of the materials to be used. At least one copy of the plan is to be at the jobsite during construction and throughout the period of work in the shored excavation.
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