Method for replacing underground pipeline through cracking and inserting method

A technology of underground pipelines and replacement methods, which is applied in the directions of pipeline laying and maintenance, pipes/pipe joints/fittings, mechanical equipment, etc., can solve the problems of inconvenient repair of urban drainage pipelines, and achieves low requirements for pipeline cleaning, risk avoidance, and stable performance. Effect

Active Publication Date: 2016-06-15
北京木石金河环保科技有限公司 +2
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  • Description
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  • Application Information

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Problems solved by technology

The limitations of the above conditions have made it difficult to use tra...

Method used

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  • Method for replacing underground pipeline through cracking and inserting method
  • Method for replacing underground pipeline through cracking and inserting method
  • Method for replacing underground pipeline through cracking and inserting method

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Embodiment Construction

[0023] see Figure 1-6 , the underground pipeline replacement method provided by the present invention is as follows: select two wells of the underground pipeline as construction wells, take one of the construction wells as the replacement starting construction well 1, and use the other construction well as the replacement end construction well 4, with The pipe section between the two construction wells is the construction pipe section. The thrust device 12 is installed in the construction well of the replacement starting point, and the traction device 6 is arranged in the construction well of the replacement end point. The expansion pipe head 9 is pulled by the traction device to make a straight line from the opening of the construction pipe section in the construction well of the replacement starting point. Squeeze forward into the construction pipe section and break the old pipe in the passing section, then stop the traction, place the short pipe 10 for connecting into a new...

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Abstract

The invention relates to a method for replacing an underground pipeline through a cracking and inserting method. A thrust device is arranged in a starting point replacing construction well. A traction device is arranged in an ending point replacing construction well. A traction expansion pipe head of the traction device is extruded into a construction pipe section linearly from a construction pipe section pipeline opening in the starting point replacing construction well to break old pipes in regions where the traction expansion pipe head passes through; the thrust device pushes short pipes arranged behind the expansion pipe head to be in pressure contact with the expansion pipe head and move synchronously; and a plurality of short pipes are pushed in sequence to enter the pipeline and be connected with the short pipes in front of the corresponding plurality of short pipes in an inserting manner till a new pipe formed by mutual inserting and connecting of the short pipes is formed in the pipeline between the two construction wells. The underground pipeline can be efficiently and rapidly replaced on the basis that the ground above the pipeline is not excavated, and construction is safe and reliable.

Description

technical field [0001] The invention relates to a method for replacing underground pipelines by a splitting method, which is mainly suitable for the construction of drainage, rainwater, sewage, reclaimed water and other pipelines, and is especially suitable for the repairing project of drainage pipelines with a diameter of less than 600mm. Background technique [0002] Underground pipe network is an important part of urban infrastructure. With the rapid development of urban construction, municipal drainage, sewage, rainwater, reclaimed water, etc. continue to circulate. The construction of underground pipe network is increasing and expanding year by year. Drainage pipes are seriously aging and damaged, and they are overloaded, often causing problems such as blockage, leakage, and pipe breakage. Urban drainage pipes have the following characteristics: most urban drainage pipes are located within the range of urban roads and alleys, and the roads are crowded and narrow; the un...

Claims

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Application Information

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IPC IPC(8): F16L1/028F16L1/06
CPCF16L1/028F16L1/06
Inventor 鲁金会贾君崔同悦赵雪詹明杰王梓任王菲
Owner 北京木石金河环保科技有限公司
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