Underground pipeline detection is a complex and critical technology, involving urban infrastructure maintenance, construction safety, resource management and other fields. With the acceleration of urban construction and the increasing complexity of underground pipeline networks, efficient and accurate detection means have become an urgent need. In this paper, we will discuss three mainstream underground pipeline detection technologies: ordinary Pipe Cable Locator, Pipe Line Ground Penetrating Radar (PLGR) and Underground Pipeline Inertial Locator (UPLI), and analyze their principles, advantages and disadvantages as well as application scenarios.
1, electromagnetic induction Pipe Cable Locator
Principle and application:
Electromagnetic induction Pipe Cable Locator is based on the principle of electromagnetic induction, mainly used to detect metal pipes, cables and non-metallic pipes with metal marking lines. It transmits electromagnetic signals and receives signals reflected back from the pipeline to determine the location and depth of the pipeline.
Advantages:
-Fast detection speed, easy to operate.
-Intuitive display, easy to understand.
Disadvantages:
-Limited to metal pipeline detection.
Non-metallic pipeline detection requires the use of special probes, the process is cumbersome and may need to intrude into the pipeline.
2, pipeline ground-penetrating radar (dark pipe detector)
Principle and application:
Pipeline ground-penetrating radar uses electromagnetic waves to penetrate the soil, and the reflected signals are used to draw images of underground pipelines or objects. It is not only applicable to metal pipelines, but also to non-metallic pipelines, and can even be used in geological exploration, hidden danger detection and other fields.
Advantages:
-Wide range of applications, including geological exploration, hidden danger detection, engineering quality inspection and so on.
-Powerful function, can detect pipelines of various materials.
Disadvantages:
-High environmental requirements, susceptible to electromagnetic interference.
-Deepness measurement ability is limited, high requirements for operator skills.
3、Underground pipeline inertial positioner
Principle and application:
Underground pipeline inertial locator adopts aerospace-grade inertial navigation technology, combined with a variety of sensor information fusion, to realize accurate and reliable underground pipeline three-dimensional information acquisition. It overcomes the limitations of traditional technology, such as electromagnetic interference, geological conditions and so on.
Advantages:
-High measurement accuracy, up to centimeter level.
-Simple operation and convenient data processing.
Disadvantages:
-Operating pipelines cannot be used directly.
Conclusion.
The choice of underground pipeline detection technology should be based on specific application scenarios and needs. Ordinary Pipe Cable Locator is suitable for rapid detection of metal pipelines; Pipe Line Ground Penetrating Radar is suitable for a wider range of materials and complex environments; and Underground Pipe Line Inertial Locator shows excellent performance in high precision and complex conditions. In the future, with the continuous progress of technology, underground pipeline detection will be more efficient and accurate, providing strong support for urban construction and safety management.
