GB/T 39337-2020 Active National standards

GB/T 39337-2020 Technical requirement of fully mechanized bag filling mining with superhigh-water material

GB/T 39337-2020 Technical requirement of fully mechanized bag filling mining with superhigh-water material

Publish Date: 2020-11-19 Implement Date: 2021-06-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 39337-2020

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Mining

ICS Name: Mining and excavation

Publish Date: 2020-11-19

Implement Date: 2021-06-01

Pages: 13 pages

Scope

This standard specifies the terms and definitions of the comprehensive mechanized ultra-high water material bag filling coal mining technology, the strength requirements of ultra-high water materials, the composition of the ultra-high water material filling system, the bag filling working face, the bag filling mining process, and the monitoring of surface deformation and underground mine pressure.
This standard is applicable to comprehensive mechanized wall-type working faces with an extraction height of less than 5 m.

Development Information

Word Count: 24 Thousand words Pages: 13 pages

Referenced Standards

GB/T 10171-2016 Building construction machinery and equipment—Concrete mixing plant(tower) GB/T 17671-1999 Method of testing cements—Determination of strength GB/T 17671-2021 Test method of cement mortar strength(ISO method) GB/T 20105-2006 Coated fabrics for air duct HG/T 2580-2022 Determination of tensile strength and elongation at break of rubber or plastic-coated fabrics JB/T 7043-2006 Hydraulic axial piston pump HG/T 2580-2008 Rubber or plastic-coated fabric - Determination of tensile strength and elongation at break HG/T 2580-1994 Determination of tensile strength and tensile extension of rubber or plastic coated fabrics JB/T 7043-1993 Technical Specifications for Hydraulic Axial Piston Pumps GB 50026-2020 Code for engineering surveying GB/T 20105-2026 Coated fabrics for air duct

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