GB/T 39337-2020Technical requirement of fully mechanized bag filling mining with superhigh-water material (English PDF)
综合机械化超高水材料袋式充填采煤技术要求
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
November 19, 2020
Implementation date
June 1, 2021
Scope
GB/T 39337-2020 is the English-translated version of 综合机械化超高水材料袋式充填采煤技术要求.
GB/T 39337-2020 is the Chinese standard "Technical requirement of fully mechanized bag filling mining with superhigh-water material".
Its scope clause reads: This standard specifies the terms and definitions of comprehensive mechanized ultra-high water material bag-filling coal mining technology, the strength requirements of ultra-high water materials, and Water material filling system composition, bag-filling working face, bag-filling mining process, surface deformation and underground mine pressure monitoring.
This standard applies to comprehensive mechanized wall working faces with a height of less than 5m. Its clauses include terms and definitions.
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Document preview — GB/T 39337-2020
National Standard of the People's Republic of China
- ICS
- 73.020
- Classification
- D 15
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Strength requirements for ultra-high water materials
- 5 Composition of ultra-high water material filling system
- 5.1 Filling station layout
- 5.2 Pulping system layout
- 5.3 Slurry conveying system
- 6 Bag filling working surface
- 6.1 Working surface layout
- 6.2 Filling the hydraulic support
- 6.3 Filling bags
- 7 Bag filling mining process
- 7.1 Time coordination of coal mining and filling
- 7.2 Filling process and technical requirements
- 7.3 Pulp conveying process and technical requirements
- 7.4 Strength requirements of filling body
- 8 Surface deformation and underground mine pressure monitoring
- 8.1 Calculation of Equivalent Mining Height
- 8.2 Monitoring of surface deformation
- 8.3 Underground mine pressure monitoring
- Appendix A (Normative appendix) Uniaxial compressive strength test method for ultra-high water materials
1 Scope
This standard specifies the terms and definitions of comprehensive mechanized ultra-high water material bag-filling coal mining technology, the strength requirements of ultra-high water materials, and
Water material filling system composition, bag-filling working face, bag-filling mining process, surface deformation and underground mine pressure monitoring.
This standard applies to comprehensive mechanized wall working faces with a height of less than 5m.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document.
For undated references, the latest version (including all amendments) applies to this document.
GB/T 10171-2016 Construction Machinery and Equipment Concrete Mixing Plant (Building)
GB/T 17671 Cement Mortar Strength Inspection Method (ISO Method)
GB/T 20105 Air duct coated cloth
GB 50026 Engineering Survey Specification
HG/T 2580 Determination of tensile strength and elongation at break of rubber or plastic coated fabric
JB/T 7043 hydraulic axial piston pump
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 Ultra high water material
A component composed of A material and AA material and a B component composed of B material and BB material. When the two components are separately added with water to make a slurry,
It does not condense for several hours, and quickly condenses and hardens after mixing. It is a hydraulic material with a certain strength when the volume of the consolidated body reaches 97%.
3.2
Material A
Sulphoaluminate cement clinker fired from bauxite, limestone and a small amount of other minerals is ground to a certain fineness.
3.3 Material B
It is made of anhydrite and quicklime to a certain fineness.
3.4 AA material
An inhibitor composed of suspension dispersant and retarder.
3.5 BB material
A catalyst composed of suspension dispersant and coagulant.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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