GB/T 39858-2021
ActiveTunnel pre-cutting machine
隧道预切槽设备
Application Summary AI generated
GB/T 39858-2021 specifies technical requirements, safety parameters, and testing methods for tunnel pre-cutting machines used in underground construction. It applies to equipment that cuts a continuous slot in tunnel faces before excavation, primarily in mining, railway, and highway tunnel engineering projects. The standard ensures operational reliability and safety during pre-cutting processes in weak or unstable geological conditions.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.