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GB/T 39834-2021: Technical requirement of fully mechanized bag filling mining with paste
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| GB/T 39834-2021 | English | 189 |
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Technical requirement of fully mechanized bag filling mining with paste
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GB/T 39834-2021
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Basic data | Standard ID | GB/T 39834-2021 (GB/T39834-2021) | | Description (Translated English) | Technical requirement of fully mechanized bag filling mining with paste | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D15 | | Word Count Estimation | 10,171 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 39834-2021: Technical requirement of fully mechanized bag filling mining with paste---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Technical requirement of fully mechanized bag filling mining with paste
ICS 73.020
CCSD15
National Standards of People's Republic of China
Technical requirements for comprehensive mechanized paste bag filling coal mining
Released on 2021-03-09
2021-10-01 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Table of contents
Foreword Ⅰ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Paste material preparation 2
4.1 Composition and requirements of raw materials 2
4.2 Basic performance requirements of paste 2
4.3 Paste preparation system 2
5 Paste material transportation 4
5.1 System composition 4
5.2 Process flow 4
5.3 Technical requirements 4
6 Paste filling process and requirements 4
6.1 Working surface layout 4
6.2 Time coordination of coal mining and filling 5
6.3 Filling process flow 5
6.4 Technical requirements for filling operation 6
6.5 Paste filling strength requirements 6
7 Filling hydraulic support and filling bag requirements 6
7.1 Filling the hydraulic support 6
7.2 Filling the bag 6
8 Surface deformation and underground mine pressure monitoring 7
8.1 Calculation of Equivalent Mining Height 7
8.2 Monitoring of surface deformation 7
8.3 Underground mine pressure monitoring 7
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents.
This document was proposed and managed by the China Coal Industry Association.
This document was drafted by. Jizhong Energy Group Co., Ltd., Jizhong Energy Fengfeng Group Co., Ltd., National Energy Filling Coal Mining Technology
Technology Key Laboratory, Hebei Filling and Mining Technology Co., Ltd., National Energy Filling and Mining Technology Key Laboratory Design and Research Institute, Hebei Coal
Scientific Research Institute Co., Ltd., Productivity Promotion Center of China Coal Industry Association.
The main drafters of this document. Zhang Buqin, Shao Taisheng, Zhao Bingwen, Liu Cunyu, Meng Xianying, Wang Dianlu, Zhao Wenzhuang, Zhang Chengmin, Chi Yong, Xu Changsheng,
Xue Lifei, Ji Qingya, Liu Yongsheng, Shi Zepo, Li Hai, Ren Jianli, Lu Shuze, Wang Mude, Lu Zhimin, Wang Jinbao, Mao Guoli, Yang Hongzeng, Qin Dajian,
Zheng Houfa.
Technical requirements for comprehensive mechanized paste bag filling coal mining
1 Scope
This document specifies the preparation of paste material, paste material transportation, paste filling process and the process of integrated mechanized paste bag filling coal mining
Requirements, requirements for filling hydraulic supports and filling bags, surface deformation and underground pressure observation.
This document is applicable to the comprehensive mechanized wall working face with coal seam thickness below 5m, and the inclined mining method should be adopted.
2 Normative references
The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations
Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
This document.
GB/T 1596 Fly ash used in cement and concrete
GB/T 10171-2016 Construction Machinery and Equipment Concrete Mixing Plant (Building)
GB/T 14685 Pebble and gravel for construction
GB/T 20105 Air duct coated cloth
GB 50026 Engineering Survey Specification
GB/T 50080-2016 Standard for test methods of ordinary concrete mixture performance
GB/T 50081-2019 Standard for test methods of concrete physical and mechanical properties
HG/T 2580 Determination of tensile strength and elongation at break for rubber or plastic coated fabrics
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Pasteofcoalminegangue
Crush and process coal mine gangue into aggregate with a certain gradation, and mix and stir it with cement, fly ash, additives, etc. in proportion to water
It is a paste-like slurry with no critical flow rate and no need for dehydration.
3.2
Filingstationwithpaste
Crush coal gangue, etc., weigh it with cement, fly ash, additives, water, etc., stir to make a paste-like slurry, and use a filling pump to remove the paste
The process (equipment) system and supporting engineering for the continuous input of the body into the filling pipeline.
3.3
Masspercentageconcentration
The mass percentage of all gangue in the paste slurry.
3.4
Separationwal
The retaining wall used for grouping isolation and filling is erected between the two lanes and the filling bag by using single pillars, waste tracks, bamboo curtains, etc.
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