GB/T 2008-1987
Active
GB/T 39834-2021
Active
National standards
GB/T 39834-2021 Technical requirement of fully mechanized bag filling mining with paste
GB/T 39834-2021 Technical requirement of fully mechanized bag filling mining with paste
Price:
$ 50
Basic Information
Standard Code:
GB/T 39834-2021
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Mining
ICS Name:
Mining and excavation
Publish Date:
2021-03-09
Implement Date:
2021-10-01
Pages:
10 pages
Scope
This document specifies the preparation of paste materials, the transportation of paste materials, the process and requirements of paste filling in comprehensive mechanized caving mining, the requirements for filling hydraulic supports and filling bags, and the observation of surface deformation and underground mine pressure. This document is applicable to comprehensive mechanized caving working faces with a coal seam thickness of less than 5 m, and it is recommended to adopt an upward inclined mining method.
Development Information
Referenced Standards
GB/T 10171-2016 Building construction machinery and equipment—Concrete mixing plant(tower)
GB/T 1596-1991 Fly ash used for cement and concrete
GB/T 1596-2005 Fly ash used for cement and concrete
GB/T 1596-2017 Fly ash used for cement and concrete
GB/T 14685-2001 Pebble and crushed stone for building
GB/T 14685-2011 Pebble and crushed stone for construction
GB/T 14685-2022 Pebble and crushed stone for construction
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
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
GB 50026-2020 Code for engineering surveying
GB/T 50080-2016 Standard for test method of performance on ordinary fresh concrete
GB/T 50081-2019 Standard for test methods of concrete physical and mechanical properties
GB/T 20105-2026 Coated fabrics for air duct
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