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NB/T 11432-2023: Technical specification for coal mine gangue-based solid waste filling
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| NB/T 11432-2023 | English | 309 |
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Technical specification for coal mine gangue-based solid waste filling
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NB/T 11432-2023
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Basic data | Standard ID | NB/T 11432-2023 (NB/T11432-2023) | | Description (Translated English) | Technical specification for coal mine gangue-based solid waste filling | | Sector / Industry | Energy Industry Standard (Recommended) | | Classification of Chinese Standard | D15 | | Classification of International Standard | 73.020 | | Word Count Estimation | 14,177 | | Date of Issue | 2023-12-28 | | Date of Implementation | 2024-06-28 | | Issuing agency(ies) | National Energy Administration | NB/T 11432-2023: Technical specification for coal mine gangue-based solid waste filling---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.
NB/T 11432-2023 English version. Technical specification for coal mine gangue-based solid waste filling
ICS 73.020
CCSD15
Energy Industry Standards of the People's Republic of China
Technical specification for coal mine gangue-based solid waste filling
Technical specification forcoalminegangue-basedsolidwastefiling
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 Applicable conditions 2
5 Filling methods and filling coal mining methods 2
6 Gangue-based solid waste filling materials 2
7 Filling system and process 3
8 Surface deformation and underground mine pressure observation 5
References 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 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. Yaojie Coal and Electricity Group Co., Ltd., China University of Mining and Technology, Xuzhou Zhongkuangda Beckfort Technology Co., Ltd.
Shandong Kanger Energy Technology Co., Ltd., Shaanxi Huabin Coal Industry Co., Ltd., Xi'an University of Science and Technology, China Coal Industry Association Productivity
Promotion Center.
The main drafters of this document are. Chang Qingliang, Yuan Chongliang, Xian Xuhong, Wang Yongzhong, Zhang Tianlu, He Haiquan, Zhang Junliang, Wang Wenlin, Meng Jiabin,
Wang Hongtao, Li Xiushan, Zhou Xian, Ren Xin, Zhou Huaqiang, Xuan Zhaojun, Liu Changan, Gan Jiandong, Liu Lang, Yang Yang, Zhang Biao, Ren Jianli, and Wang Yuzhuo.
Technical specification for coal mine gangue-based solid waste filling
1 Scope
This document specifies the applicable conditions, filling methods and filling coal mining methods of coal mine gangue-based solid waste filling technology, gangue-based solid waste filling materials,
Materials, filling systems and processes, surface deformation and underground mine pressure observation.
This document is applicable to mine solid waste filling with coal gangue as the base material.
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 175 General purpose Portland cement
GB/T 1596 Fly ash used in cement and concrete
GB 8076 Concrete admixtures
GB/T 14684 Construction sand
GB/T 14685 Pebbles and crushed stones for construction
GB 20426 Pollutant emission standards for coal industry
GB/T 39338 Technical requirements for comprehensive mechanized solid filling coal mining
GB/T 39834 Technical requirements for comprehensive mechanized paste bag filling coal mining
GB 50215 Coal Industry Mine Design Code
GB 50771 Nonferrous Metal Mining Design Code
NB/T 51019 Test method for compaction characteristics of solid filling materials
NB/T 51022 Technical requirements for vertical feeding pipes for solid filling materials
NB/T 51023 Technical requirements for self-weight feeding system of solid filling materials
NB/T 51070 Test methods for coal mine paste filling materials
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
coal mine gangue-based solid waste filling coal mine gangue-based solid waste filling
The harmless filling material prepared with coal gangue, a solid waste discharged during coal mining and coal washing, is filled into the goaf to control
A coal mining technique in which the overlying rock is moved.
3.2
cemented (coagulated) backfill
The filling material contains cementing (setting) material, which forms a composite filling body with certain mechanical strength.
3.3
Non-cemented (coagulated) backfill
The filling material does not contain cementing (setting) materials and is formed by accumulation or natural compaction.
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