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NB/T 11454-2023 English PDF

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NB/T 11454-2023: Specification for risk management of freezing sinking method
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Basic data

Standard ID NB/T 11454-2023 (NB/T11454-2023)
Description (Translated English) Specification for risk management of freezing sinking method
Sector / Industry Energy Industry Standard (Recommended)
Classification of Chinese Standard D15
Classification of International Standard 73.020
Word Count Estimation 58,559
Date of Issue 2023-12-28
Date of Implementation 2024-06-28
Issuing agency(ies) National Energy Administration

NB/T 11454-2023: Specification for risk management of freezing sinking method

---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 11454-2023 English version. Specification for risk management of freezing sinking method ICS 73.020 CCSD15 Energy Industry Standards of the People's Republic of China Risk management specification for well sinking using freezing method Released on 2023-12-28 2024-06-28 Implementation The National Energy Administration released

Table of Contents

Preface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 2 4 Basic Provisions 3 5 Shaft lining design risk management 6 5.1 General Management Provisions 6 5.2 Identification of risk factors 7 5.3 Risk Factor Assessment 7 5.4 Risk Control Measures 8 6 Freeze scheme design risk management 8 6.1 General Management Provisions 8 6.2 Identification of risk factors 9 6.3 Risk Factor Assessment 9 6.4 Risk Control Measures 10 7 Freezing system and power supply system design risk management 10 7.1 General Management Provisions 10 7.2 Identification of risk factors 11 7.3 Risk Factor Assessment 12 7.4 Risk Control Measures 12 8 Risk management of frozen drilling construction 14 8.1 General Management Provisions14 8.2 Identification of risk factors 14 8.3 Risk Factor Assessment 15 8.4 Risk Control Measures 16 9 Refrigeration station installation project construction risk management 18 9.1 General Management Provisions 18 9.2 Identification of risk factors 19 9.3 Risk Factor Assessment 20 9.4 Risk Control Measures 20 10 Freezing process risk management 26 10.1 General Management Provisions 26 10.2 Identification of risk factors 27 10.3 Risk Factor Assessment 28 10.4 Risk Control Measures 29 11 Shaft Excavation and Construction Risk Management 31 11.1 General Management Provisions 31 11.2 Identification of risk factors 32 11.3 Risk Factor Assessment 34 11.4 Risk Control Measures 34 12 Risk management of well wall grouting construction 41 12.1 General Management Provisions 41 12.2 Identification of risk factors 42 12.3 Risk Factor Assessment 43 12.4 Risk Control Measures 43 13 Special risk control measures 45 13.1 General Provisions 45 13.2 Hidden danger investigation 46 13.3 Risk Monitoring 46 13.4 Emergency Management 47 Appendix A (Informative) Risk Identification Table for Freezing Method Well Drilling Project 48 Appendix B (Informative) Risk List of Freezing Method Well Drilling Project 49 References 50

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 Coal Industry Coal Mine Special Equipment Standardization Technical Committee. This document was drafted by. Beijing China Coal Mine Engineering Co., Ltd., China Electronics Engineering Design Institute Co., Ltd., China Coal Fifth Construction Co., Ltd. Third Engineering Department, Henan Guolong Mining Construction Co., Ltd., China Coal Special Well Drilling Co., Ltd., Dadi Engineering Development (Group) Co., Ltd., Henan Evonik Mining Engineering Co., Ltd., Anhui Huaiwu Engineering Project Management Co., Ltd., Zhongyun International Engineering Co., Ltd., Kailuan Construction (Group) Co., Ltd., Beijing Coal Science and Technology Association Applied Technology Research Institute, Henan Haodi Engineering Consulting Co., Ltd. The main drafters of this document are. Li Gongzhou, Jiang Jun, Gao Wei, Wang Zhiyang, Liu Jiezhong, Wang Shengli, Pan Jianzhong, Liu Qingli, Wei Guoqiang, Wang Guoqi, Zhang Bujun, Zhang Daohai, Gao Gangrong, Guo Zhongqiang, Chen Yuankun, Cui Jianjun, Zhao Yuming, Chen Zhangqing, Zhao Yong, Cao Dadian, Li Xiaowei, Wang Yi, Zeng Fanyi, Ma Yuefeng, Song Wei, Li Dongsheng, Jiang Xinchun, Hou Jinping, Xin Peihong, and Liu Wenmin.

Introduction

This document provides technical reference for risk management of freezing method well drilling. The safety requirements for freezing method well drilling are based on laws, regulations and mandatory national standards. Other relevant regulations shall prevail. Risk management specification for well sinking using freezing method

1 Scope

This document specifies the design of the wellbore wall, freezing scheme design, freezing system and power supply system for the freezing method of well drilling projects using a brine refrigeration system. System design, freezing drilling construction, refrigeration station installation construction, freezing process, shaft excavation and masonry construction, shaft wall grouting construction The risk management requirements for workers, etc., as well as the requirements for special measures for risk control of well drilling using the freezing method. This document is applicable to the risk management of the design, construction and management of mine engineering freezing method well drilling projects. Other engineering freezing method construction can refer to this document. implement.

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 29639 Guidelines for the preparation of emergency plans for production safety accidents in production and operation units GB/T 39963 Technical specification for the application of C80~C100 concrete to the shaft lining in the vertical shaft freezing method GB 50016 Code for Fire Protection Design of Buildings GB 50072 Cold Storage Design Code GB 50148 Specification for the construction and acceptance of power transformers, oil-immersed reactors and mutual inductors for electrical installation projects GB 50169 Specification for construction and acceptance of grounding devices for electrical installation projects GB 50171 Specification for the construction and acceptance of panels, cabinets and secondary circuit wiring for electrical installation engineering GB 50204 Code for acceptance of construction quality of concrete structure engineering GB 50213 Code for acceptance of coal mine tunnel engineering quality GB 50231 General specification for construction and acceptance of mechanical equipment installation projects GB 50235 Industrial Metal Pipeline Engineering Construction Specification GB 50236 Construction specification for welding engineering of field equipment and industrial pipelines GB 50274 Refrigeration equipment, air separator equipment installation construction and acceptance specifications GB 50384 Coal mine shaft and chamber design specification GB 50415 Code for design of inclined shafts and chambers in coal mines GB 50511 Coal Mine Shaft and Tunnel Engineering Construction Code GB/T 51277 Construction and quality acceptance standard for mine shaft freezing method GB 55008 General specification for concrete structures AQ1029 Coal mine safety monitoring system and testing equipment use management specifications AQ1083 Coal Mine Construction Safety Specifications AQ7015 Safety Specifications for Ammonia Refrigeration Enterprises JGJ46 Technical Specification for Temporary Electricity Safety at Construction Sites JGJ107 Technical Specification for Mechanical Connection of Steel Bars NB/T 10053 Technical specification for freezing construction of inclined shafts in coal mines SBJ12 Ammonia Refrigeration System Installation Engineering Construction and Acceptance Specification

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