埋地塑料管道在管道内无金属、无液体的情形下，具有不导电不导磁基本绝缘的特征，金属探测等要领难以识别，那么怎么就能识别呢
？探测埋地塑料地埋示踪线起了着述用！

When there is no metal or liquid in the pipeline, the buried plastic pipeline has the characteristics of non-conductive and non-magnetic basic insulation, which is difficult to identify by metal detection and other methods, so how can it be identified? Detecting the tracer line of buried plastic pipeline plays a big role!

在现实应用中，管材需要替换、修补或者管道改建施工时如无法通过金属探测定位（例：无金属示踪系统的埋地PE燃气管、埋地PE给、排水管等），还可以接纳以下要领定位埋地塑料管道，应该查找出对应工程的施工图纸，大致确定埋地管道位置、走向、深度。然后接纳声波定位法确定管道位置。关于遗失施工图纸或者施工图纸标准不清晰的，可以直接通过声波定位法确定管道位置。

In practical application, if pipes need to be replaced, repaired or reconstructed, if it is impossible to locate through metal detection (e.g. buried PE gas pipes without metal tracking system, buried PE water supply and drainage pipes, etc.), the following methods can also be used to locate buried plastic pipelines. The construction drawings of corresponding projects should be found to roughly determine the location, direction and depth of buried pipelines. Then the acoustic positioning method is used to determine the position of the pipeline. If the construction drawings are missing or the standards of the construction drawings are not clear, the pipeline position can be directly determined by acoustic positioning method.

该要领使用声波定位装备，基于声学探测原理，分发射和吸收两部分组成。音频驱动器通过转换讨论毗连到管道系统检测井内裸露的管件、管材上，向其施加特定组合频率的声波信号，声波信号发动管道共振并向远端撒播，撒播历程一部分声波能量可以抵达地地面，我们再通过手持吸收装置沿路面吸收对应的声波信号，通过耳机内反响的声波信号强度及数字显示的声波巨细组合判断，从而快速定位出埋地塑料管道位置
；效率高及准确率较好。

This method uses acoustic positioning equipment, which is based on the principle of acoustic detection and consists of two parts: transmitting and receiving. The audio driver is connected to the exposed pipe fittings and pipes in the detection well of the pipeline system through the adapter, and the acoustic signal with a specific combined frequency is applied to it. The acoustic signal drives the pipeline to resonate and propagate to the far end. Part of the acoustic energy can reach the ground during the propagation process, and then we receive the corresponding acoustic signal along the road through the handheld receiving device, Through the combination judgment of the acoustic signal strength fed back from the earphone and the acoustic wave size displayed digitally, the position of the buried plastic pipeline can be quickly located; High efficiency and good accuracy.

厂家以为关于管道内无金属、无液体的埋地塑料管道，简捷便当的示踪要领仍然是敷设时装置金属示踪线系统。声波定位法增大人工与装备开销，倒运于维修与替换，以是金属示踪系统的埋地PE燃气管、埋地PE给、排水管照旧较量常用的要领了。

The manufacturer believes that for buried plastic pipelines without metal and liquid in the pipeline, the simple and convenient tracing method is still to install the metal tracing line system when laying. Acoustic positioning method increases the cost of labor and equipment, which is not conducive to maintenance and replacement, so the buried PE gas pipe, buried PE water supply and drainage pipe of metal tracking system are still commonly used.

别的要注重，检测信号能加载到示踪线上，中心故障太多，走漏严重，中心没有检测井。装置了地埋示踪线，始端最后剪断悬空，与大地不接触，中心阀井内示踪线未作牢靠处理。示踪线线径太小，不可知足检测信号传输要求，容易被施工挖断或自然应力破损。

In addition, it should be noted that the detection signal can be loaded onto the tracer line, there are too many intermediate faults, serious leakage, and there is no detection well in the middle. The buried tracer line is installed, and the beginning and end are cut and suspended in the air, which is not in contact with the earth. The tracer line in the middle valve well is not fixed. The diameter of the tracer line is too small to meet the requirements of detection signal transmission, and it is easy to be cut off by construction or damaged by natural stress.

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