示蹤線”同PE管一起鋪設；一般會采用金屬線芯，通過探測設備給“金屬線”施加信號，由探測接收機接收信號，從而找到示蹤線的準確位置，即同步追蹤到PE燃氣管道的具體位置；以便于對PE管道進行改造及維修。下面是關于示蹤線施工注意事項的一些補充，我們?yōu)榇蠹液唵谓榻B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、使用時注意示蹤線的放線長度，用多少放多少，不能將示蹤線一次性全部倒出來。

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、地埋示蹤線隨管一起進入定向鉆孔時,要有人看管，避免示蹤線打結、或纏繞在一起。

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、比較好有一個簡單的放線架，把示蹤線固定在放線架上，讓示蹤線和管材同時拖動。

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、在拖管的過程中，示蹤線不能被小樹叢或其它障礙物絆掛，避免示蹤線被拉斷。

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、示蹤線和管材頂部要捆扎牢固，避免管材在穿越時示蹤線脫落。如果示蹤線要出地表面，需適當多預留一定的長度。建議出地后的示蹤線預留長度為1.5米左右，以備探測使用。

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、示蹤線在定向鉆使用過程中，不能有接頭。

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

七、在非開挖工程施工中，PE管道外面的地埋示蹤線在拖管過程中容易被扯斷，簡便的辦法是選擇截面積更大、強度更高的導線或鋼絲繩，或者在管道的內(nèi)部預穿一條示蹤線即可避免斷線，其探測效果如同在外面一樣，但這樣做時需處理好內(nèi)部示蹤線頭與外面示蹤線連接的問題。

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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