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513 EM 385-1-1 Chapters 23-29
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Chapter 26: Underground Construction, Shafts, and Caissons

This chapter on underground construction, shafts, and caissons outlines comprehensive guidelines and standards for safely conducting underground construction activities.

Two workers working in by enormously large Tunneling Machine
This chapter outlines comprehensive guidelines and standards for safely conducting underground construction activities.

It emphasizes the importance of daily inspections and adherence to strict safety protocols including ensuring safe access ways, inspecting equipment and structures, and managing the challenges of working in confined spaces under variable conditions.

Key aspects covered include the qualifications and training of personnel, such as Authorized Entrants and Designated Persons and covers the design and implementation of safety plans, including emergency rescue plans, ventilation and dust control plans, and fire prevention and protection plans.

It highlights the roles and responsibilities of various personnel, including Competent and Qualified Persons, in maintaining a safe working environment through regular inspections, air quality monitoring, and the management of equipment and materials.

26-1. References.

26-1. References.

26-2. Definitions.

26-2. Definitions.