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GB/T 41057-2021 English PDF

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US$199.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 41057-2021: Technical requirements for distributed acoustic optical fiber monitoring system on prestressed concrete cylinder pipe
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 41057-2021	199	Add to Cart	3 days	Technical requirements for distributed acoustic optical fiber monitoring system on prestressed concrete cylinder pipe	Valid

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Basic data

Standard ID: GB/T 41057-2021 (GB/T41057-2021)
Description (Translated English): Technical requirements for distributed acoustic optical fiber monitoring system on prestressed concrete cylinder pipe
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A91
Word Count Estimation: 9,947
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 41057-2021: Technical requirements for distributed acoustic optical fiber monitoring system on prestressed concrete cylinder pipe

---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.
Technical requirements for distributed acoustic optical fiber monitoring system on prestressed concrete cylinder pipe ICS 17:180:99 CCSA91 National Standards of People's Republic of China Distributed Fiber Optic Acoustic Monitoring of Prestressed Concrete Cylinder Pipes skills requirement Published on 2021-12-31 2022-07-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Method principle 1 5 General Requirements 2 6 Performance Requirements 2 7 Installation and acceptance 3 8 Operation and maintenance 3 9 Monitoring report4 Reference 5

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 Building Materials Federation: This document is under the jurisdiction of the National Standardization Technical Committee of Cement Products (SAC/TC197): This document was drafted by: Suzhou Concrete and Cement Products Research Institute Co:, Ltd:, Xylem (China) Co:, Ltd:, Tianjin University, China Electric Power Co:, Ltd: The 22nd Research Institute of Sub-Technology Group Corporation, Xiamen Santai Concrete Engineering Co:, Ltd:, Suzhou Concrete and Cement Products Research Institute Testing Center Co:, Ltd:, China Water Resources and Hydropower Research Institute, Beijing Water Science and Technology Research Institute, Beijing Municipal Engineering Design and Research Institute Co:, Ltd: Company, North China University of Water Conservancy and Hydropower, Nanjing University, Jiangsu Jiaotong Group Co:, Ltd:, China Power Construction Group Shandong Electric Power Pipeline Engineering Co:, Ltd: Company, Ningxia Qinglong Pipe Industry Group Co:, Ltd:, Zhejiang Julong Pipe Industry Technology Co:, Ltd:, Shandong Longquan Pipeline Engineering Co:, Ltd:, Tian Jin Jingyi Precision Technology Co:, Ltd:, Chongqing Asus Construction Co:, Ltd:, Chongqing Xinke Construction Engineering Co:, Ltd:, Shenzhen Municipal Engineering General Manager Company, CLP Jiancheng Duyuan Water Pipe Industry Co:, Ltd:, Chengdu Raw Water Investment Co:, Ltd:, Shaanxi Province Yinhan Jiwei Engineering Construction Co:, Ltd:, Railway Positive Detection Technology Co:, Ltd:, China Construction Technology Group Co:, Ltd: Shenzhen Branch, Zhongshui Huaihe Planning and Design Research Co:, Ltd:, Anhui Zhongke Haoyin Intelligent Technology Co:, Ltd:, Beijing Guodian Ruiyuan Technology Development Co:, Ltd:, Tianjin Yuhang Runming Technology Development Co:, Ltd:, Jiangsu Emperor Bang Construction Engineering Co:, Ltd:, Shenzhen Tianjian Pingshan Construction Engineering Co:, Ltd:, Shanghai Bohui Technology Co:, Ltd:, China Railway 20th Bureau Group City Government Engineering Co:, Ltd:, Guangdong Yuejian Sanhe Software Co:, Ltd: The main drafters of this document: Tian Hua, Wang Wuping, Feng Hao, Yu Feng, Peng Zhenghui, Wang Jianhui, Zhu Xinmin, Wu Guofang, Shazhou, Zhu Honghu, Dai Chunsheng, An Xiaolong, Li Xiaoke, Dong Jiabing, Ning Jinghua, Zhang Xianwei, Zhu Zhihang, Liu Yuanxiang, Pu Qi, Li Junhua, Yuan Changyong, Yu Bin, Yuan Liqun, Ouyang Qinghao, Qian Liang, Su Yan, Cai Tao, Guo Chuanchen, Qi He, Gui Zongneng, Jin Chenglong, Liu Min, Yu Jinyang, Zhou Zhaoming, Yu Faxin, Feast, Yu Fujing, Zhao Hao, Wang Chao, Zhou Youheng, Xu Jin, Wang Hongxian, Zhu Jinxiang, Zhang Ning, Du Ze, Jiang Tao: Distributed fiber-optic acoustic monitoring of prestressed steel cylinders skills requirement

1 Scope

This document specifies the method principle, general requirements, performance requirements, installation And acceptance requirements, operation and maintenance requirements, the basic information of the monitoring report is given: This document is applicable to online monitoring of the integrity of prestressed steel wires for prestressed concrete-filled cylinder pipelines:

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 7424:2-2008 General Specification for Optical Cables Part 2: Basic Test Methods for Optical Cables GB/T 15972:40-2008 Specification for test methods for optical fibers - Part 40: Measurement methods and tests for transmission and optical properties program---decay

3 Terms and Definitions

The following terms and definitions apply to this document: 3:1 prestressedconcretecylinderpipe;PCCP A pipe made by wrapping a hoop prestressed steel wire on the outside of a concrete pipe core with a steel cylinder and making a protective layer of cement mortar: [Source: GB/T 19685-2017, 3:1:1, with modifications] 3:2 Distributed optical fiber acoustic monitoring technology distributed optical fiber acoustic monitoring technology A technology for acoustic signal monitoring based on the principle of distributed optical fiber sensing: 3:3 Distributedopticalfiberacousticmonitoringsystemdistributedopticalfiberacousticmonitoringsystem A system for acoustic signal monitoring based on the principle of distributed optical fiber sensing: 3:4 Simulatedmissingreportrate Through the knock test to simulate the broken wire missing rate, the ratio of the number of missed effective knocks to the total effective knocks:

4 Principles of the method

The sensing optical cable is laid along the prestressed steel cylinder concrete pipeline: When the prestressed steel wire breaks, the vibration wave generated will affect the optical signal in the optical cable: The monitoring system detects, collects and processes the optical signal, identifies the broken wire of the prestressed concrete cylinder pipe, and determines the broken wire: time and location: ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 41057-2021_English be delivered?

Answer: Upon your order, we will start to translate GB/T 41057-2021_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 41057-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 41057-2021_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.