示踪线”同PE管一起铺设；一般会采用金属线芯，通过探测设备给“金属线”施加信号，由探测接收机接收信号，从而找到示踪线的准确位置，即同步追踪到PE燃气管道的具体位置；以便于对PE管道进行改造及维修。下面是关于示踪线施工注意事项的一些补充，我们为大家简单介绍如下：

Trace line "shall be laid together with PE pipe; Generally, metal wire cores are used to apply signals to the "metal wire" through the detection equipment, and the detection receiver receives the signals, so as to find the accurate position of the tracer line, that is, synchronously track to the specific position of the PE gas pipeline; In order to facilitate the transformation and maintenance of PE pipes. The following are some supplements to the construction precautions of the tracer line, which we briefly introduce to you as follows:

一、使用时注意示踪线的放线长度，用多少放多少，不能将示踪线一次性全部倒出来。

1、 When using, pay attention to the setting out length of the tracer line, and put as much as you use. You cannot pour out all the tracer lines at one time.

二、地埋示踪线随管一起进入定向钻孔时,要有人看管，避免示踪线打结、或缠绕在一起。

2、 When the buried tracer line enters the directional drilling hole with the pipe, it should be watched by someone to prevent the tracer line from knotting or winding together.

三、比较好有一个简单的放线架，把示踪线固定在放线架上，让示踪线和管材同时拖动。

3、 It's better to have a simple pay off rack, fix the tracer line on the pay off rack, and let the tracer line and the pipe drag at the same time.

四、在拖管的过程中，示踪线不能被小树丛或其它障碍物绊挂，避免示踪线被拉断。

4、 In the process of dragging the pipe, the tracer line shall not be tripped by small trees or other obstacles to avoid being broken.

五、示踪线和管材顶部要捆扎牢固，避免管材在穿越时示踪线脱落。如果示踪线要出地表面，需适当多预留一定的长度。建议出地后的示踪线预留长度为1.5米左右，以备探测使用。

5、 The tracer line and the top of the pipe should be tied firmly to prevent the tracer line from falling off when the pipe crosses. If the tracer line is to go out of the ground surface, a certain length should be reserved appropriately. It is suggested that the reserved length of the tracer line after leaving the ground is about 1.5m for detection.

六、示踪线在定向钻使用过程中，不能有接头。

6、 The tracer line shall not have joints during the use of directional drilling.

七、在非开挖工程施工中，PE管道外面的地埋示踪线在拖管过程中容易被扯断，简便的办法是选择截面积更大、强度更高的导线或钢丝绳，或者在管道的内部预穿一条示踪线即可避免断线，其探测效果如同在外面一样，但这样做时需处理好内部示踪线头与外面示踪线连接的问题。

7、 In the construction of trenchless engineering, the buried tracer wire outside the PE pipe is easy to be broken during the dragging process. A simple way is to choose a conductor or steel wire rope with larger cross-sectional area and higher strength, or pre thread a tracer wire inside the pipe to avoid the breakage. Its detection effect is the same as that outside, but when doing so, the connection between the internal tracer wire head and the external tracer wire needs to be handled well.

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