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NB/T 11548-2024 English PDF

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NB/T 11548-2024: Technical specification for simultaneous operation of drilling and grouting in vertical shaft
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NB/T 11548-2024English359 Add to Cart 4 days [Need to translate] Technical specification for simultaneous operation of drilling and grouting in vertical shaft Valid NB/T 11548-2024

Basic data

Standard ID NB/T 11548-2024 (NB/T11548-2024)
Description (Translated English) Technical specification for simultaneous operation of drilling and grouting in vertical shaft
Sector / Industry Energy Industry Standard (Recommended)
Classification of Chinese Standard D01
Classification of International Standard 73.020
Word Count Estimation 17,147
Date of Issue 2024-05-24
Date of Implementation 2024-11-24
Issuing agency(ies) National Energy Administration

NB/T 11548-2024: Technical specification for simultaneous operation of drilling and grouting in vertical shaft


---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 CCSD01 Energy Industry Standards of the People's Republic of China Technical specification for parallel drilling and injection operation in vertical shaft verticalshaft Released on 2024-05-24 Implementation on November 24, 2024 The National Energy Administration released

Table of contents

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Drilling and injection parallel operation design 2 4.1 Design of time-space relationship between drilling and grouting 2 4.2 Grouting section design 2 4.3 Grouting hole layout 3 4.4 Ground facilities layout 4 4.5 Grouting hole trajectory design 4 4.6 Other grouting designs 4 4.7 Drilling Design 4 5 Drilling and injection parallel operation construction 4 5.1 Drilling operations 4 5.2 Drilling Mud Parameters 4 5.3 Drilling Mud Control 5 5.4 Well logging 5 5.5 Grouting hole construction 5 5.6 Grouting operation 5 5.7 Grouting end criteria 6 5.8 Drilling Mud Monitoring 6 5.9 Grouting drilling trajectory monitoring 7 5.10 Grouting process monitoring 7 6 Drilling Mud Grouting Slurry 7 6.1 Quality requirements for drilling mud for grouting 7 6.2 Drilling Mud Grouting Slurry Ratio 7 6.3 Preparation of drilling mud grouting slurry 7 7 Inspection 8 7.1 Inspection of the overlap section between drilling and grouting 8 7.2 Inspection of the overlap between the S-hole grouting section and the straight hole grouting section 8 7.3 Grouting ring diameter inspection 8 7.4 Grouting quantity inspection 8 7.5 Grouting final pressure test 8 7.6 Final grouting quantity inspection 8 7.7 Grouting effect inspection 8 7.8 Other routine inspections 8 Appendix A (Informative) Schematic diagram of the construction sequence of parallel drilling and injection operations in the vertical shaft 9 Appendix B (Informative) Drilling Mud Parameters Test Table 10 Appendix C (Informative) Grouting hole trajectory parameter calculation results Table 11 Reference 12

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 Safety Standardization Technical Committee. This document was drafted by. Huaibei Mining Co., Ltd., Hefei University of Technology, Beijing China Coal Mine Engineering Co., Ltd., China Coal Industry Industry Association Productivity Promotion Center, Kailuan Construction (Group) Co., Ltd., National Engineering Research Center for Deep Mine Construction Technology, Huaiwu Industry Cheng Construction Supervision Co., Ltd. The main drafters of this document are Wei Shengtian, Meng Yiping, Zheng Houfa, Yang Daozhao, Deng Lunzhu, Cao Longfei, Zuo Yongjiang, Liu Shujie and Zhu Jinlong. Technical specification for parallel drilling and injection operation in vertical shaft

1 Scope

This document specifies the technical specifications for parallel operations of vertical shaft drilling and ground pre-grouting, Requirements for drilling and injection parallel operation, drilling mud, grouting slurry and inspection, etc. This document is applicable to mine shafts, and other similar underground engineering shafts can be used as a reference for implementation.

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 50511-2022 Coal Mine Shaft and Tunnel Engineering Construction Standard GB 50213-2010 Code for acceptance of coal mine tunnel engineering quality GB 51227-2017 Specification for construction and acceptance of vertical shaft drilling method MT/T 1057 Test method for water pressure test of pre-grouting effect on the ground of vertical shaft MT/T 1150 Technical specification for grouting hole construction of vertical shaft ground pre-grouting project

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 A method of drilling a vertical shaft using a drilling rig. [Source. GB/T 15663.2-2023, 7.1, modified] 3.2 Surface pre-grouting Before the well is dug, a hole is drilled from the ground to the aquifer, and grouting facilities installed on the ground are used to inject slurry into the aquifer. [Source. GB/T 15663.2-2023, 9.2] 3.3 A method in which drilling construction and ground pre-grouting construction are carried out simultaneously within a certain time and space during vertical shaft construction. 3.4 Drilling mud grouting slurry mudtogrout During the parallel drilling and injection operation, the grouting slurry is made with drilling mud as the main material. 3.5 Vertical grouting hole Grouting holes constructed in a straight hole manner before drilling and grouting parallel operations.

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