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示踪线的作用与铺设注意事项

来源:http://www.binzhouhengtong.com/ 发布时间:日期:2022-09-15
由于PE管不导电,不导磁,无法对PE管进行追踪,给日后的管道维修带来不便。地埋示踪线有效地解决了非金属管线不能用金属管线寻管仪探查的问题。下面小编来讲讲示踪线的作用与铺设注意事项。
As PE pipe is non-conductive and non magnetic, it is impossible to track PE pipe, which brings inconvenience to pipeline maintenance in the future. The buried trace line effectively solves the problem that non-metallic pipelines cannot be detected by metal pipeline finder. The following section will talk about the role of the trace line and the precautions for laying.
一、示踪线的作用
1、 The role of trace lines
“示踪线”用于对PE管道的探测、追踪及定位。“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地埋管道的具体位置;以便于对PE管道进行改造及维修。
"Tracer line" is used for the detection, tracking and positioning of PE pipes. "Tracer 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 to find the exact location of the trace line, that is, to synchronously track the specific location of the PE buried pipeline; In order to facilitate the transformation and maintenance of PE pipes.
二、示踪线铺设注意事项
2、 Precautions for trace line laying
1、踪线埋设时应紧贴PE管道呈直线状,并位于管道的顶面为好。请勿以螺旋状缠绕在PE管道上埋设,这样易导致探测结果不准确。
1. The trace line shall be laid in a straight line close to the PE pipe and on the top of the pipe. Do not wrap the PE pipe in a spiral shape for burial, which may lead to inaccurate detection results.
地埋示踪线
2、在窨井或出地处示踪线应该预留出一定长度的导线(1m以上为宜),供探测施加信号所用。这样可提髙探测效率和精度。
2. A certain length of wire (more than 1m is appropriate) shall be reserved for the trace wire in the inspection well or out of the ground for signal detection. This can improve the detection efficiency and accuracy.
3、示踪线接头或分支点一定要连接牢固,保持良好导电,并用绝缘胶布包好,防止地下潮湿而造成腐蚀断线情况,使探测信号中断。管道的钢塑转换接头处示踪线可以焊接在法兰上,接点处做好防腐处理,防止日久后腐蚀断线。
3. The connector or branch point of the tracer wire must be firmly connected to maintain good conductivity, and be wrapped with insulating tape to prevent corrosion and breakage caused by underground moisture, which may interrupt the detection signal. The trace line at the steel plastic conversion joint of the pipeline can be welded on the flange, and the joint shall be subject to anti-corrosion treatment to prevent corrosion and wire breakage after a long time.
4、为增加示踪线的信号强度并让信号分布均匀,施工时须尽量减小示踪线埋地末端的接地电阻,采取剥掉绝缘层裸露芯线30cm的良好接地措施。特别是对于长度较短的分支管的末端,一定要接地良好,否则分支上的信号会非常弱而探测不到。
4. In order to increase the signal strength of the tracer wire and make the signal distributed evenly, the grounding resistance at the buried end of the tracer wire must be reduced as much as possible during construction, and good grounding measures shall be taken to strip the insulation layer and bare core wire for 30cm. Especially for the end of the branch pipe with short length, it must be well grounded, otherwise the signal on the branch pipe will be very weak and cannot be detected.
5、若管道埋地长度超过1km,中间又没有窨井等设施供预留示踪线头满足探测之需,则建议每公里处设一个测试桩并预留示踪线接头供探测时使用。
5. If the buried length of the pipeline exceeds 1km and there is no inspection well or other facilities in the middle to reserve the tracer head to meet the needs of detection, it is recommended to set a test pile every kilometer and reserve the tracer joint for detection.
6、在非开挖工程施工中,PE管道外面的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。
6. During the trenchless construction, the tracer line outside the PE pipe is easy to be broken during the pipe dragging process. The simple method is to select a conductor or steel wire rope with larger sectional area and higher strength, or to pre thread a tracer line inside the pipe to avoid breakage. Its detection effect is the same as that outside, but the connection between the internal tracer line head and the external tracer line needs to be handled properly when doing so.
7、在某些特殊情况下,对PE管道无法应用示踪线,这时可采用预埋示踪球的方法满足今后的探测定位需要。
7. In some special cases, the tracer line cannot be applied to PE pipes. At this time, the method of embedding the tracer ball can be used to meet the needs of future detection and positioning.
示踪线的作用与铺设注意事项就讲解到这里了,如果您对此有什么不了解的问题或者说,您有什么需求就来我们网站http://www.binzhouhengtong.com咨询吧。
This is the end of the function and laying precautions of the trace line. If you have any questions or needs that you do not understand, please come to our website http://www.binzhouhengtong.com Consult.

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