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GB/T 45610-2025Reclamation code of practice for coal gangue backfill subsidence area (English PDF)

煤矸石回填塌陷区复垦技术规程

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

April 25, 2025

Implementation date

November 1, 2025

Scope

GB/T 45610-2025 is the English-translated version of 煤矸石回填塌陷区复垦技术规程.

GB/T 45610-2025 is the Chinese national standard covering filling a mining subsidence basin with the waste rock the mine itself produced — the classification of the gangue and the limits on what may be admitted, the site survey covering ground stability and the seepage barrier that keeps leachate out of the groundwater, the topsoil stripped and kept aside before backfilling begins, the placement and the reclamation above it, and the monitoring and evaluation of the reclaimed land. First edition, under the China National Coal Association. In force from 1 November 2025. Issued on 25 April 2025, it has been in force since 1 November 2025.

Document preview — GB/T 45610-2025

National Standard of the People's Republic of China

ICS: 73.020
Classification: D 04

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface... III 1 Scope1
2 Normative references1
3 Terms and Definitions2
4 General Principles2
5 Workflow2
6 Classification and admission of coal gangue3
6.1 Classification of coal gangue3
6.2 Requirements for the entry of coal gangue4
7 Backfill site investigation and selection4
7.1 General requirements4
7.2 Background Check4
7.3 Site stability level survey4
7.4 Investigation on anti-seepage requirements5
7.5 Site Selection Requirements5
8 Backfill and reclamation5
8.1 General requirements5
8.2 Topsoil Stripping and Protection5
8.3 Gangue Backfill5
8.4 Reclamation6
9 Reclamation Quality Monitoring and Evaluation6
9.1 Reclamation Quality Monitoring6
9.2 Evaluation of reclamation quality7
References8

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 is required.

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 is proposed and coordinated by the China Coal Industry Association.

This document was drafted by: Shandong Energy Group Co., Ltd., China University of Mining and Technology (Beijing), China Coal Industry Association Productivity Promotion Center Center, Shandong Kanger Energy Technology Co., Ltd., Shandong Institute of Standardization, Shandong Lunan Institute of Geological Engineering and Exploration (Shandong Geological and Mineral Exploration Development Bureau Second Geological Brigade), Xinwen Mining Group Co., Ltd., Inner Mongolia University for Nationalities, Beijing University of Science and Technology, Shandong Energy Group Technology Development Co., Ltd., Guoneng Shendong Coal Group Co., Ltd., China Coal Technology and Engineering Mining Research Institute Co., Ltd., Disaster Prevention Science and Technology College, Shandong Coal Carbon Science Research Institute Co., Ltd., Shandong Huaxin Construction Engineering Group Co., Ltd., Anhui University of Science and Technology, China University of Mining and Technology, Guizhou Rongyuan Environmental Protection Engineering Co., Ltd.

Bao Technology Co., Ltd., China Coal Technology and Engineering Ecological Environment Technology Co., Ltd., China Coal Tianjin Design Engineering Co., Ltd., China Coal (Tianjin) Underground Engineering Co., Ltd.

Cheng Intelligent Research Institute Co., Ltd., Shandong Provincial Land and Space Planning Institute (Shandong Provincial Natural Resources and Real Estate Registration Center).

The main drafters of this document are: Li Wei, Fan Jianguo, Zhang Kai, Yang Yang, An Jie, Zhang Yong, Liu Jian, Wang Naiguo, Wang Yi, Li Xiushan, Sun Xiang, Zhang Xiaobo, Bo Huaizhi, Li Mingming, Wang Shuang, Deliger, Gao Yanzhi, Liu Jinhai, Yue Zuncai, Liu Pengliang, Chen Hongnian, Feng Xiujuan, Jiang Liangfu, Han Keming, Feng Tao, and Wang Lixin.

Technical specification for reclamation of subsidence area by backfilling with coal gangue

1 Scope

This document establishes the general principles and work flow for reclamation of coal gangue backfill subsidence areas, and stipulates the classification and entry of coal gangue and the investigation of backfill sites.

The process of selection, backfilling and reclamation is described, and the monitoring and evaluation methods of reclamation quality are described.

This document applies to the reclamation of coal mining subsidence areas using coal gangue backfill.

2 Normative references

GB/T 214

GB 3838-2002

GB 8978

GB/T 14848-2017

GB 16297-1996

GB/T 17643

GB 18599-2020

GB 18918

GB/T 21010

GB/T 34230-2017

GB/T 35986

GB/T 37574-2019

GB/T 43215-2023

GB/T 43934

GB 51044-2014

NY/T 1121.2

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

GB 3838-2002 · GB 8978 · GB 18599-2020 · GB 51044-2014 · NY/T 1121.2

Editions of GB/T 45610

Edition	Title	Revision	Status
GB/T 45610-2025	Reclamation code of practice for coal gangue backfilling subsidence area	current edition	Current

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