Although PE pipes have many advantages, their greatest weaknesses are low strength, poor light resistance, easy aging, and difficulty in detecting location, direction, and depth.

在以往市政建设施工中，由于管道的确切位置不十分清楚,被施工机械挖断挖漏的现象很常见,由此造成的燃气泄漏爆炸事故也时有发生,因此探测标地下PE管道的位置工作十分必要。

In the past municipal construction, due to the unclear exact location of the pipeline, it is common for the pipeline to be cut and leaked by construction machinery, resulting in gas leakage and explosion accidents. Therefore, it is necessary to explore the location of underground PE pipelines.

由于PE管材所具有的独特技术性能和其他管材无法比拟的安装方式,该种材料被全国燃气行业广泛应用于城市燃气领域中，成为替代城市燃气埋地钢管、铸铁管道的理想材料，特别是输送燃气和自来水管道应用多。但另一方面,由于PE管

Due to the unique technical performance of PE pipes and the incomparable installation method of other pipes, this material is widely used in the field of urban gas in the national gas industry, becoming the most ideal material to replace buried steel pipes and cast iron pipes for urban gas, especially for gas transmission and tap water pipelines. On the other hand, due to the PE pipe

材的特殊性, PE燃气管道在安装、运行管理、探测定位上同样存在特殊性。PE 管道为惰性材质制成,不

Due to the particularity of materials, PE gas pipelines also have particularity in installation, operation management, detection and positioning. PE pipes are made of inert material, not

导电.不导磁,埋人地下之后，目前还没有较好的方法直接在地面探测到PE管道在地下的空间位置。

After conducting electricity and not conducting magnetism, and being buried underground, there is currently no better method to directly detect the spatial location of PE pipes on the ground.

为了PE管道埋地后能够在地面探测到位置和埋深的问题，人们已经想出了多种方法,相比之下，导线示踪线技术是经济、效果的方法。

In order to solve the problem of detecting the location and depth of PE pipelines on the ground after they are buried, many methods have been devised. In contrast, the wire tracing technology is the most economical and effective method.

所谓导线示踪线技术就是在铺设施工PE管道时与PE管道-起埋人一- 条铜导线(简称示踪线),为今后探测PE管道位置与深度所用,示踪线法是目前国内外普遍采用的探测方法。示踪线在埋地管道施工中，为了使示踪线在以后能够很好地起到示踪作用,它的施工方法和探测方法选择十分重要。

The so-called wire tracing line technology refers to a copper wire (referred to as tracing line) that is buried with the PE pipe during the laying and construction of PE pipes. It is used to detect the position and depth of PE pipes in the future. The tracing line method is currently widely used at home and abroad. In the construction of buried pipelines, the selection of construction methods and detection methods is very important in order to ensure that the tracer line can play a good tracking role in the future.