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GB/T 25217.14-2020 English PDF

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US$209.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 25217.14-2020: Methods for test, monitoring and prevention of rock burst - Part 14: Prevention method of roof hydraulic fracturing
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 25217.14-2020	209	Add to Cart	3 days	Methods for test, monitoring and prevention of rock burst - Part 14: Prevention method of roof hydraulic fracturing	Valid

Similar standards

GB/T 2007.6 GB/T 2007.7 GB/T 25217.8 GB/T 25217.9 GB/T 25217.11

Basic data

Standard ID: GB/T 25217.14-2020 (GB/T25217.14-2020)
Description (Translated English): Methods for test, monitoring and prevention of rock burst - Part 14: Prevention method of roof hydraulic fracturing
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D04
Classification of International Standard: 73.010
Word Count Estimation: 11,137
Date of Issue: 2020-11-19
Date of Implementation: 2021-06-01
Regulation (derived from): National Standard Announcement No. 26 of 2020
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 25217.14-2020: Methods for test, monitoring and prevention of rock burst - Part 14: Prevention method of roof hydraulic fracturing

---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.
Methods for test, monitoring and prevention of rock burst-Part 14.Prevention method of roof hydraulic fracturing ICS 73.010 D04 National Standards of People's Republic of China Rockburst measurement, monitoring and prevention methods Part 14.Prevention and Control Methods of Roof Hydraulic Fracturing 2020-11-19 released 2021-06-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Foreword

GB/T 25217 "Measurement, Monitoring and Prevention of Rock Burst Pressure" is divided into 14 parts. ---Part 1.The method of measuring the impact tendency of roof rock formation and index; ---Part 2.Classification of impact tendency of coal and measurement method of index; ---Part 3.The method of measuring the impact tendency and index of coal-rock composite specimens; ---Part 4.Microseismic monitoring method; ---Part 5.Ground sound monitoring method; ---Part 6.Drill cuttings monitoring method; ---Part 7.Mining stress monitoring method; ---Part 8.Electromagnetic radiation monitoring methods; ---Part 9.Coal seam water injection prevention methods; ---Part 10.Prevention and treatment methods for coal seam borehole pressure relief; ---Part 11.Coal seam unloading blasting prevention methods; ---Part 12.Prevention and control methods of mining protective layer; ---Part 13.Prevention methods of roof deep hole blasting; ---Part 14.Prevention and treatment methods of roof hydraulic fracturing. This part is Part 14 of GB/T 25217. This section was drafted in accordance with the rules given in GB/T 1.1-2009. This part is proposed and managed by China Coal Industry Association. Drafting organizations of this section. China University of Mining and Technology, Coal Science and Technology Research Institute Co., Ltd., Yankuang Group Co., Ltd., Shenhua Xinjiang Energy Limited liability company, Tiandi Technology Co., Ltd. The main drafters of this section. Dou Linming, He Hu, Qi Qingxin, Wang Fuqi, Cao Anye, Chen Jianqiang, Zhao Shankun, Du Taotao, Cai Wu. Rockburst measurement, monitoring and prevention methods Part 14.Prevention and Control Methods of Roof Hydraulic Fracturing

1 Scope

This part of GB/T 25217 specifies the terms and definitions, instruments and equipment, and roof water Fracturing conditions, direct hydraulic fracturing method, directional hydraulic fracturing method, effect inspection, safety requirements. This part is applicable to the prevention and control method of hydraulic fracturing of rock burst roof.

2 Normative references

The following documents are essential for the application of this document. For dated reference documents, only the dated version applies to this document. For undated references, the latest version (including all amendments) applies to this document. GB/T 23561.10-2010 Determination of physical and mechanical properties of coal and rock Part 10.Determination of tensile strength of coal and rock GB/T 25217.1-2010 Methods for the determination, monitoring and prevention of rock bursts. Part 1.Classification and classification of rock bursts Index method

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Roof hydraulic fracturing Inject high-pressure liquid into the roof rock layer to create new or expand original cracks in the roof rock layer to control roof fracture and energy release The anti-shock technology. 3.2 Direct hydraulic fracturing Construct fracturing holes in the roof rock layer, and inject high-pressure liquid after sealing the holes to fracture the roof rock mass to achieve the prevention of roof fracture and energy release. Chong technology. 3.3 Directional hydraulic fracturing Artificially cut a directional pre-fracture in the roof rock layer, and then inject high-pressure liquid to crack the rock mass along the directional pre-fracture to achieve control Anti-impact technology for roof fracture and energy release. 3.4 Directional pre-crack The slit cut in the fracturing hole has a shape similar to that of a wedge. 3.5 Slotting tool A drill tool capable of directional pre-slit cutting. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 25217.14-2020_English be delivered?

Answer: Upon your order, we will start to translate GB/T 25217.14-2020_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 25217.14-2020_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 25217.14-2020_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.