GB/T 39337-2020 English PDF

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

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 39337-2020	249	Add to Cart	3 days	Technical requirement of fully mechanized bag filling mining with superhigh-water material	Valid

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Basic data

Standard ID: GB/T 39337-2020 (GB/T39337-2020)
Description (Translated English): Technical requirement of fully mechanized bag filling mining with superhigh-water material
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D15
Classification of International Standard: 73.020
Word Count Estimation: 13,195
Date of Issue: 2020-11-19
Date of Implementation: 2021-06-01
Regulation (derived from): National Standard Announcement No. 26 of 2020
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

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

---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 superhigh-water material ICS 73.020 D15 National Standards of People's Republic of China Comprehensive mechanized ultra-high water material bag filling coal mining skills requirement 2020-11-19 released 2021-06-01 implementation State Administration for Market Regulation 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 Strength requirements for ultra-high water materials 3 5 Composition of ultra-high water material filling system 3 5.1 Filling station layout 3 5.2 Pulping system layout 4 5.3 Slurry conveying system 4 6 Bag filling working surface 5 6.1 Working surface layout 5 6.2 Filling the hydraulic support 6 6.3 Filling bags 6 7 Bag filling mining process 7 7.1 Time coordination of coal mining and filling 7 7.2 Filling process and technical requirements 7 7.3 Pulp conveying process and technical requirements 7 7.4 Strength requirements of filling body 8 8 Surface deformation and underground mine pressure monitoring 8 8.1 Calculation of Equivalent Mining Height 8 8.2 Monitoring of surface deformation 8 8.3 Underground mine pressure monitoring 8 Appendix A (Normative appendix) Uniaxial compressive strength test method for ultra-high water materials 9

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that certain contents of this document may involve patents. The issuing agency of this document is not responsible for identifying these patents. This standard was proposed and managed by China Coal Industry Association. Drafting organizations of this standard. Jizhong Energy Group Co., Ltd., Jizhong Energy Handan Mining Group Co., Ltd., Jizhong Energy Co., Ltd. Co., Ltd., National Energy Filling and Mining Technology Key Laboratory, Hebei Filling and Mining Technology Co., Ltd., Hebei Coal Research Institute Co., Ltd. Division, Hebei Zichen Super High Water Material Co., Ltd., Productivity Promotion Center of China Coal Industry Association. The main drafters of this standard. Sun Chundong, Gao Huichun, Jia Jing, Xie Guoqiang, Gao Xiaofeng, Feng Lining, Ma Minle, Wu Honglin, Bu Tieyong, Lu Zhimin, Wang Chungeng, Ding Yanbin, Du Xiaohe, Yang Junhui, Yang Hongzeng, Chen Feng, Li Yongyuan, Li Jisheng, Zhang Xiaojian, Zhang Fuhuan, Gao Chunfang, Qin Dajian, Wang Ying, Ji Meiliang, Zheng Houfa, Yang Yang. Comprehensive mechanized ultra-high water material bag filling coal mining skills requirement

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. ......

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