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NB/T 11446-2023: Technical requirements of mining roadway by roadway with continuous backfilling in coal mine
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Technical requirements of mining roadway by roadway with continuous backfilling in coal mine
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NB/T 11446-2023
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Basic data | Standard ID | NB/T 11446-2023 (NB/T11446-2023) | | Description (Translated English) | Technical requirements of mining roadway by roadway with continuous backfilling in coal mine | | Sector / Industry | Energy Industry Standard (Recommended) | | Classification of Chinese Standard | D15 | | Classification of International Standard | 73.020 | | Word Count Estimation | 18,159 | | Date of Issue | 2023-12-28 | | Date of Implementation | 2024-06-28 | | Issuing agency(ies) | National Energy Administration | NB/T 11446-2023: Technical requirements of mining roadway by roadway with continuous backfilling in coal mine
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NB/T 11446-2023 English version. Technical requirements of mining roadway by roadway with continuous backfilling in coal mine
ICS 73.020
CCSD15
Energy Industry Standards of the People's Republic of China
Technical requirements for continuous mining and filling in coal mines
Released on 2023-12-28
2024-06-28 implementation
The National Energy Administration released
Table of Contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Filling material requirements 2
5 System Layout 2
5.1 Working surface layout 2
5.2 Continuous mining and filling production system 2
5.3 Filling material preparation system 3
5.4 Filling material transport system 4
5.5 Layout of filling and coal mining branch tunnels 4
5.6 Ventilation system 5
6 Equipment composition 5
6.1 Coal mining equipment 5
6.2 Transfer equipment 5
6.3 Filling material preparation equipment 5
6.4 Filling equipment 5
7 Technology 6
7.1 Coal mining technology 6
7.2 Filling process 6
8 Monitoring content 7
8.1 Mine pressure monitoring 7
8.2 Filling quality monitoring 7
8.3 Monitoring of rock movement and deformation 7
8.4 Surface deformation monitoring 7
Appendix A (Informative) Calculation method of retaining wall strength 8
References 9
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 for standardization documents"
Drafting.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the China Coal Industry Association.
This document is under the jurisdiction of the Standardization Expert Group of China Coal Industry Association.
This document was drafted by. Xinwen Mining Group Co., Ltd., China University of Mining and Technology, Shandong Huaxin Construction Engineering Group Co., Ltd.
Co., Ltd., Inner Mongolia Yuxing Mining Co., Ltd., and China Coal Industry Association.
The main drafters of this document are. Zhang Jixiong, Li Xiaoping, Gao Yanzhi, Zhou Nan, Liu Zhijun, Wei Wen, Geng Huafeng, Ma Liqiang, Ma Dan, Guan Yuhua,
Zhang Qiang, Li Mingming, Sun Qiang, Liu Li, Yan Hao, Li Qiang, Li Meng, Huang Peng, Li Baiyi, Cui Shubin, Guo Linfeng, Zheng Chen.
Technical requirements for continuous mining and filling in coal mines
1 Scope
This document specifies the general requirements, system layout, equipment composition, process flow, and monitoring content of continuous mining and filling technology in coal mines.
This document is applicable to coal mines that adopt continuous mining and filling technology.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 10171 Construction machinery and equipment Concrete mixing station (building)
GB 22340 Safety specification for belt conveyors used in coal mines
GB/T 39834 Technical requirements for comprehensive mechanized paste bag filling coal mining
GB/T 50081 Test methods for physical and mechanical properties of concrete
GB/T 51169 Coal industry mine mining equipment standard
JB/T 13439 Piston filling pump for mining
NB/T 51023-2014 Technical requirements for self-weight feeding system of solid filling materials
Coal Mine Surveying Procedures
Specifications for the layout of coal pillars and compressed coal mining in buildings, water bodies, railways and main wells
3 Terms and definitions
The terms and definitions defined in NB/T 51023-2014 and the following apply to this document.
3.1
Continuous mining and charging transport lane headgate forming roadway by roadway with continuous backfilling
A tunnel arranged at the lower end of the continuous mining and filling working face, used to transport coal out and introduce fresh air.
3.2
Tailgate forming roadway by roadway with continuous backfiling
It is arranged at the upper end of the continuous mining and filling working face and is used to transport filling materials and lead out polluted air.
3.3
continuous backfilling setup entry forming roadway by roadway with continuous backfilling
Before the continuous mining and filling working face is mined, it is arranged at the boundary of the working face, connecting the transport lane and the return air lane, and is used for ventilation, transportation and pedestrians.
Alley.
3.4
Mining branch roadway
A tunnel arranged between the transport tunnel and the return air tunnel of the working face, where coal mining operations are carried out.
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