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NB/T 11440-2023: Estimation specifications of coal reserves in production mine
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Estimation specifications of coal reserves in production mine
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NB/T 11440-2023
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Basic data | Standard ID | NB/T 11440-2023 (NB/T11440-2023) | | Description (Translated English) | Estimation specifications of coal reserves in production mine | | Sector / Industry | Energy Industry Standard (Recommended) | | Classification of Chinese Standard | D10;D19 | | Classification of International Standard | 73.020 | | Word Count Estimation | 16,110 | | Date of Issue | 2023-12-28 | | Date of Implementation | 2024-06-28 | | Issuing agency(ies) | National Energy Administration | NB/T 11440-2023: Estimation specifications of coal reserves in production mine---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.
ICS 73.020
CCSD10/19
Energy Industry Standards of the People's Republic of China
Specification for estimation of reserves of producing 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 Estimation of basic conditions 2
5 Estimation Requirements 2
6 Estimation formula 3
Appendix A (Informative) Recovery rate index of underground mining area 5
Appendix B (Informative) Open-pit Coal Seam Recovery Rate Index 6
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.
This document was proposed by the China Coal Industry Association.
This document is under the jurisdiction of the National Coal Standardization Technical Committee (SAC/TC42).
This document was drafted by. Oil and Gas Resources Strategic Research Center of the Ministry of Natural Resources, the First Exploration Bureau of China Coal Geology Bureau, China Coal Industry
Industry Association Consulting Service Center, China Shenhua Energy Co., Ltd., Coal Industry Planning and Design Institute Co., Ltd., Shanmei International Energy
Group Co., Ltd., Heilongjiang Longmei Mining Holding Group Co., Ltd., Guoneng Shendong Coal Group Co., Ltd., Inner Mongolia
Shanghai Miao Mining Co., Ltd., Gansu Geological Survey Institute, Jiangsu Geology and Mineral Resources Design and Research Institute, Anhui Coalfield Geology Bureau.
The main drafters of this document are. Miao Qi, Han Zheng, Song Hongzhu, Zhang Yinghong, Fang Xiaoxia, Gao Yongwei, Guo Junsheng, Yang Qiang, Tang Jiaxuan, Zhang Wenyi,
Meng Gang, Qu Junli, Chen Min, Wang Nan, Jiang Hang, Wang Tianyuan, Chen Xue, Liu Yuchen, Wan Hui, Xiao Qinghua, Kong Qinghu, Zhu Xuechen, An Yuwei, Wang Shuyan,
Quan Jutao, Qin Yunhu, Zhu Wenwei, Zhu Shifei, Wang Shuangmei.
Specification for estimation of reserves of producing coal mines
1 Scope
This document specifies the basic conditions, requirements and formulas for estimating reserves of production coal mine resources.
This document is applicable to the estimation of reserves of producing coal mines and can be used as a reference during the construction and mine closure stages.
2 Normative references
The contents of the following documents constitute 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 17766-2020 Classification of solid mineral resources reserves
GB 50197 Design code for open-pit mines in coal industry
GB 50215 Coal Industry Mine Design Code
DZ/T 0399 Mine Resource Reserve Management Specification
3 Terms and definitions
The terms and definitions defined in GB/T 17766-2020 and the following apply to this document.
3.1
Mineral reserves
The economically recoverable portion of the proven and/or indicated resources is the product of a pre-feasibility study, feasibility study or its equivalent.
The technical and economic evaluation of the mining process takes into full account the possible ore loss and dilution, and the estimated technical feasibility of mining after reasonable use of conversion factors.
feasibility and economic rationality.
Note. Reserves include proven reserves and probable reserves.
[Source. GB/T 17766-2020, 2.12]
3.2
Reserves estimated based on proven resources after a pre-feasibility study, feasibility study or equivalent technical and economic evaluation.
[Source. GB/T 17766-2020, 2.14]
3.3
Reserves estimated based on controlled resources after a pre-feasibility study, feasibility study or equivalent technical and economic evaluation; or certain
Reserves estimated based on proven resources when there is uncertainty about converting factors.
[Source. GB/T 17766-2020, 2.13]
3.4
After a pre-feasibility study, feasibility study or equivalent technical and economic evaluation, based on the inferred resources in the mine geological work,
Upgrade the estimated recoverable reserves with expected and confidence factors.
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