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