GB/T 39336-2020
ActiveTechnical requirement of roadside bag filling for gob-side entry retaining with high-water material
沿空留巷高水材料巷旁袋式充填技术要求
Application Summary AI generated
This standard specifies the technical requirements for using high-water materials in bag-type roadside filling to support gob-side entry retaining in underground coal mines. It is applied during mining operations to ensure the stability of retained roadways by defining material properties, filling procedures, and quality control measures. The standard is primarily used by mining engineers and safety inspectors in Chinese coal mining operations to improve extraction efficiency and ground control.
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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.