GB 248-1964

Abolished

Assembled reinforced-concrete supports for roadways in coal mines

装配式钢筋混凝土煤矿巷道支架

Standard Type
GB
ICS
73.100.10
CCS
D97
Status
Abolished
Issue Date
1964-01-14
Implementation
1964-04-01
Centralized Committee
中国煤炭工业协会
Issuing Authority
中国煤炭工业协会

Application Summary AI generated

This standard specifies the technical requirements, dimensions, and quality control methods for prefabricated reinforced-concrete supports used in underground coal mine roadways. It is applied in the mining industry for the design, manufacturing, and installation of tunnel support systems to ensure structural stability and safety in coal extraction environments. The standard guides both engineering design and procurement of these supports for roadway construction and maintenance.

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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.