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NB/T 10527-2021: (Construction specification of grouting for shaft wall of coal mine)
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(Construction specification of grouting for shaft wall of coal mine)
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NB/T 10527-2021
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Basic data | Standard ID | NB/T 10527-2021 (NB/T10527-2021) | | Description (Translated English) | (Construction specification of grouting for shaft wall of coal mine) | | Sector / Industry | Energy Industry Standard (Recommended) | | Classification of Chinese Standard | D15 | | Word Count Estimation | 14,144 | | Issuing agency(ies) | National Energy Administration | NB/T 10527-2021: (Construction specification of grouting for shaft wall of 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.
(Construction specification of grouting for shaft wall of coal mine)
ICS 73.020
D15
People's Republic of China Energy Industry Standard
Specification for grouting construction of shaft wall in coal mine
Published on 2021-01-07
2021-04-01 Implementation
Released by the National Energy Administration
directory
Preface I
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Basic requirements for wall grouting 3
4.1 Construction unit and personnel 3
4.2 Construction technical data 3
4.3 Construction equipment and materials 4
5.Design of well wall grouting engineering 4
5.1 General provisions 4
5.2 Drilling Design 4
5.3 Grouting Design 5
6 Construction of well wall grouting 6
6.1 General provisions6
6.2 Drilling construction 7
6.3 Grouting construction 8
7 Acceptance of well wall grouting project 9
7.1 Completion of construction 9
7.2 Project Acceptance 9
Appendix A (informative appendix) Original record of grouting construction of coal mine shaft wall 11
foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
Please note that some content of this document may be patented. The issuing authority of this document assumes no responsibility for identifying these patents.
This standard is proposed by China Coal Industry Association.
This standard is under the jurisdiction of the Science and Technology Development Department of China Coal Industry Association.
This standard was drafted by. Pingdingshan Tianan Coal Industry Co., Ltd., China University of Mining and Technology, China Pingmei Shenma Energy and Chemical Group Co., Ltd.
Responsible company, China Coal Fifth Construction Co., Ltd.
The main drafters of this standard. Zhang Jianguo, Du Bo, Qian Ziwei, Pan Shuqi, Wang Xinyi, Guo Jianwei, Wang Jiquan, Zhu Weiqiang, Zhao Chunxiao,
Jiang Zhenquan, Gao Junwei, Wu Xiaoshan, Zhu Shuyun, Li Wenchao, Huang Chaohui, Sun Hailong, Zhao Ming, Liu Shuitao, Zhu Tonggong, Li Guiyun, Liu Weijie, Xue Mao.
Specification for grouting construction of shaft wall in coal mine
1 Scope
This standard specifies the basic requirements for grouting of the shaft wall of coal mines and the standards for engineering design, construction and acceptance.
This standard is applicable to the grouting construction of coal mine shaft wall for new construction, reconstruction, expansion and production.
2 Normative references
The following documents are essential for the application of this document. For dated references, only the dated version applies to this article
pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 15663.2-2008 Coal Mine Technical Terminology Part 2.Tunnel Engineering
GB 50108-2008 Technical Specification for Waterproofing of Underground Engineering
GB 50213-2010 Code for acceptance of quality of coal mine tunnel engineering
GB 50511-2010 Code for construction of coal mine tunnel engineering
AQ1083-2011 Safety Code for Coal Mine Construction
3 Terms and Definitions
The terms and definitions defined in GB/T 15663.2-2008, AQ1083-2011 and the following apply to this document. In order to facilitate
With, the following repeats lists some terms and definitions in GB/T 15663.2-2008, AQ1083-2011.
3.1
When the vertical shaft is supported by two layers of well walls, in order to prevent or block the water leakage of the well wall, the water sealing material is injected into the gap between the two layers of well walls.
Note 1.Rewrite AQ1083-2011, definition 3.12.
Note 2.One of the two main forms of vertical shaft wall grouting.
3.2
After the vertical shaft is permanently supported, in order to reduce the water spray or strengthen the stratum, the grouting operation is carried out to the back of the shaft wall according to the design requirements.
Note 1.Rewrite GB/T 15663.2-2008, definition 3.38.
Note 2.One of the two main forms of vertical shaft wall grouting.
3.3
hanging plate stage
It is a liftable working platform suspended in the wellbore for vertical well construction operations and to protect the safety of operators.
[AQ1083-2011, Definition 3.9]
3.4
Taking the grouting hole as the center, the radial outward diffusion of the grout meets the effective distance for the purpose of water plugging and reinforcement.
[GB/T 15663.2-2008, definition 3.29]
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