GB/T 4697-2008
AbolishedHot-rolled U-type steel for mine timbering
矿山巷道支护用热轧U型钢
Application Summary AI generated
This standard specifies the dimensions, technical requirements, and testing methods for hot-rolled U-type steel sections used as support beams in underground mine roadways and tunnels. It is applied in the mining industry for manufacturing steel arch supports and yielding props that stabilize rock formations and prevent collapse during excavation. The standard ensures the steel's mechanical properties and profile geometry meet the demanding load-bearing and deformation conditions of deep or high-stress mining environments.
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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.