GB/T 39338-2020 English PDF

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GB/T 39338-2020: Technical requirements of solid-filling in fully-mechanized coal mining
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Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 39338-2020	189	Add to Cart	3 days	Technical requirements of solid-filling in fully-mechanized coal mining	Valid

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Basic data

Standard ID: GB/T 39338-2020 (GB/T39338-2020)
Description (Translated English): Technical requirements of solid-filling in fully-mechanized coal mining
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D20
Classification of International Standard: 73.020
Word Count Estimation: 10,156
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 39338-2020: Technical requirements of solid-filling in fully-mechanized coal mining

---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 requirements of solid-filling in fully-mechanized coal mining ICS 73.020 D20 National Standards of People's Republic of China Technical requirements for comprehensive mechanized solid filling coal mining 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 General requirements 2 4.1 Design of backfill mining 2 4.2 Selection of solid filling materials 2 5 Technical requirements for system layout 3 5.1 Filling coal face layout 3 5.2 Layout of solid filling material conveying system 3 6 Equipment requirements 4 6.1 Integrated mechanized solid filling equipment 4 6.2 Comprehensive mechanized coal mining equipment 4 7 Process requirements 5 7.1 Coal mining and filling process 5 7.2 Filling process 5 8 Rock formation movement control requirements 6 9 Wall rock destruction and ground movement prediction 6 9.1 Calculation method of equivalent mining height 6 9.2 Prediction of surrounding rock destruction and surface movement after solid filling coal mining 6 10 Observation requirements for rock formation and surface movement 6 10.1 Observation of rock pressure in solid filling coal face 6 10.2 Monitoring of compressibility of filling materials 6 10.3 Observation of surface movement of coal mining with solid filling under buildings (structures) 6 10.4 Observation of surface movement of coal mining with solid filling under railway 6 10.5 Observation of surrounding rock failure and surface movement of coal mining with solid filling under water bodies 7

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. Xinwen Mining Group Co., Ltd., China University of Mining and Technology, China Coal Industry Association Productivity Promotion Center, Shandong University of Science and Technology, Jizhong Energy Group Co., Ltd., Shandong Taishan Energy Co., Ltd. Zhaizhen Coal Mine. The main drafters of this standard. Zhang Jixiong, Xin Hengqi, Zheng Houfa, Gong Jianxiang, Pang Jilu, Huang Yanli, Yang Yang, Tan Yunliang, Liu Zhijun, Jufeng, Zhou Nan, Zhang Qiang, Liu Student, Zhang Dangyu, Ma Zhanguo. Technical requirements for comprehensive mechanized solid filling coal mining

1 Scope

This standard specifies the terms and definitions, general requirements, technical requirements for system layout, and equipment related to the comprehensive mechanized solid filling coal mining method. Preparation requirements, process requirements, rock formation movement control requirements, surrounding rock damage and surface movement prediction, and rock formation and surface movement observation requirements. This standard is applicable to comprehensive mechanized solid filling coal mining.

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 25974.1 Hydraulic supports for coal mines Part 1.General technical conditions GB 50215 Coal Industry Mine Design Code AQ1056 Coal Mine Ventilation Capacity Approval Standard NB/T 51019 Test method for compaction characteristics of solid filling materials NB/T 51020 Technical conditions of solid filling hydraulic support for coal mine Technical conditions of NB/T 51022 solid filling material vertical feeding pipe NB/T 51023 Technical requirements for the self-weight feeding system of solid filling materials Technical conditions of NB/T 51024 solid filling material porous bottom unloading scraper conveyor Buildings, water bodies, railways and main shafts, coal pillars and coal mining specifications (State Administration of Work Safety, National Coal Mine Safety (Full Supervision Bureau, National Energy Administration, National Railway Administration) Coal Mine Safety Regulations (State Administration of Work Safety, State Administration of Coal Mine Safety)

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Solid filling material Gangue, fly ash, open-pit mine strips and aeolian sand, etc. are harmless solid materials that are crushed and screened or can be directly filled into the goaf. 3.2 Comprehensive mechanized solid filling coal mining method Coal mining method using mechanical method to drop coal and coal, conveyor coal transportation, hydraulic support support, and mechanical method to fill solid material Comprehensive method of filling into the goaf. 3.3 Comprehensive mechanized solid filling coal mining face The working face of comprehensive mechanized coal mining operation and comprehensive mechanized solid filling operation can be realized at the same time. 3.4 Solid filling coal mining hydraulic support for coal mine It is a hydraulic support used in coal mine comprehensive mechanized solid-filling coal mining face, with the function of shielding filling and coal mining in parallel. ......

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