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NB/T 10731-2021 English PDF

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NB/T 10731-2021: Specification for design construction and acceptance of waterproof dam in coal mine
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PDF similar to NB/T 10731-2021


Standard similar to NB/T 10731-2021

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Basic data

Standard ID NB/T 10731-2021 (NB/T10731-2021)
Description (Translated English) Specification for design construction and acceptance of waterproof dam in coal mine
Sector / Industry Energy Industry Standard (Recommended)
Classification of Chinese Standard D00;D09
Word Count Estimation 18,171
Issuing agency(ies) National Energy Administration

NB/T 10731-2021: Specification for design construction and acceptance of waterproof dam in coal 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.
Specification for design construction and acceptance of waterproof dam in coal mine ICS 73.100.99 CCSD00/09 People's Republic of China Energy Industry Standard Design and construction of underground waterproof sealing wall in coal mine acceptance specification coalmine Published on 2021-11-16 2022-02-16 Implementation Released by the National Energy Administration directory Preface I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 General Provisions 2 5 Design of waterproof airtight wall 2 5.1 Design Principle 2 5.2 Design Content 2 5.3 Design Requirements 3 6 Construction of waterproof airtight wall 3 6.1 Construction process 3 6.2 Construction Requirements 3 6.3 Other requirements4 7 Quality acceptance of waterproof airtight walls 4 7.1 Contents of Quality Acceptance 4 7.2 Project acceptance information 5 Appendix A (Informative) Design and Construction Method of Underground Waterproof Sealing Wall in Coal Mine 6 A.1 Waterproof and airtight wall structure 6 A.2 Selection of size parameters of waterproof airtight wall 7 A.3 Construction process of waterproof airtight wall 9 Appendix B (informative) Design and Construction Method of Waterproof Confining Wall of Underground Composite Structure in Coal Mine 10 B.1 Composite structure underground waterproof sealing wall structure 10 B.2 Permanent containment wall construction process 11 Appendix C (Informative) Design and Construction Method of Underground Waterproof Pre-Separation Wall in Coal Mine 12 C.1 Pre-separation wall structure 12 C.2 Pre-separation wall construction process 14 Reference 15

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 of Standardization Documents" drafted. Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Coal Industry Association. This document is under the jurisdiction of the Science and Technology Development Department of China Coal Industry Association. This document is drafted by. Huaihe Energy Western Coal and Electricity Group, Ordos Huaxing Energy Co., Ltd., China Coal Industry Association Productivity Promotion Center, China University of Mining and Technology (Beijing). The main drafters of this document. Shu Yiguo, Yang Yang, Cheng Aimin, Gao Yingui, Liu Shiqi, Zhai Enfa, Ma Jiguo, Kong Wanjun, Miao Wei, Yin Hongchang, Zheng Jinyue, Guo Qing, Xu Dexuan, Guan Hongwei, Guowei. Design and construction of underground waterproof sealing wall in coal mine acceptance specification

1 Scope

This document specifies the general regulations, design, construction, quality acceptance and other technical requirements for the underground waterproof sealing wall of coal mines. This document is applicable to the waterproof sealing wall of underground tunnels in coal mines for water blocking construction of mining and excavation working faces, and can also be used for construction when the mining face is closed. of permanently closed containment walls.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB/T 17395 Seamless steel pipe size, shape, weight and allowable deviation GB 50003 Code for Design of Masonry Structures GB 50010 Specification for Design of Concrete Structures GB/T 50107 Concrete Strength Inspection and Evaluation Standard GB 50204 Code for acceptance of construction quality of concrete structure engineering GB 50213 Code for acceptance of quality of coal mine tunnel engineering GB 50215 Code for Design of Coal Industry Mine GB 50451 Code for Design of Underground Drainage Pump Station and Drainage Pipeline in Coal Mine

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 waterproof airtight wall waterproofdam In the case of mining and excavation working face mining, harvesting, etc., masonry at the appropriate position of the roadway (outside the harvesting line) is used for water blocking or permanent sealing. waterproof facilities. 3.2 undercut slotting A groove is dug in the surrounding rock of the roadway, and after pouring and overall grouting reinforcement, the waterproof sealing wall and the surrounding rock of the roadway are integrated to increase the size of the roadway. A technical means for the waterproof sealing wall to resist water pressure. 3.3 The maximum allowable head pressure that will not cause damage to the waterproof containment wall. 3.4 In order to ensure the sealing and sealing effect of the waterproof airtight wall on the water body of the goaf, the space between the goaf and the production area is reserved, and the waterproof airtight wall supports the water body.

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