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首页> 外文会议>International Symposium on Safety and Structural Integrity; 20050117-20; Singapore(SG) >On-Line Monitoring to Detect Third-Party Damage on Underground Natural Gas Pipelines Using Accelerometer
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On-Line Monitoring to Detect Third-Party Damage on Underground Natural Gas Pipelines Using Accelerometer

机译：使用加速度计在线监测地下天然气管道上的第三方损坏

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摘要

Even though an excavation is not under the direct control of the utility operators, it is the main cause of third-party damage on the underground natural gas pipelines. Since the damage due to third-party excavation may lead to horrible consequences, preventative techniques that can reduce the third-party damage are needed. The purpose of this paper is to introduce an on-line monitoring system using accelerometer to detect a propagating acoustic pressure pulse that is produced from the third-party damage. Also, in order to verify this system, the corresponding field tests were performed considering many third-party damage sources(breaker, hammer drilling, etc.) and signal transmission ratio of each source. From the tests, signals developed by the third-party damage sources were successfully detected with the digital filter, which can distinguish external noises at the distance of 13km. Therefore, it is expected that the system can be used as a useful tool for the third-party damage monitoring of underground natural gas pipelines.
机译：即使开挖不受公用事业运营商的直接控制，它也是造成地下天然气管道第三方损坏的主要原因。由于第三方挖掘造成的损坏可能导致可怕的后果，因此需要可以减少第三方损坏的预防技术。本文的目的是介绍一种使用加速度计的在线监测系统，以检测由第三方损坏产生的传播声压脉冲。另外，为了验证该系统，考虑了许多第三方损坏源（破碎机，锤钻等）以及每个源的信号传输率，进行了相应的现场测试。通过测试，可以使用数字滤波器成功检测到第三方损坏源发出的信号，该信号可以区分13公里距离处的外部噪声。因此，期望该系统可以用作对地下天然气管道进行第三方损害监测的有用工具。

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