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PCCP pipeline rupture repair process

A pipeline and process technology, applied in the field of PCCP pipeline rupture repair technology, can solve the problems of large damage, waste of materials, difficult PCCP pipeline effective repair, etc., achieve uniform density, improve density and waterproof level, and ensure quality and economy Effect

Active Publication Date: 2021-04-09
北京京燕水务有限公司
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  • Application Information

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Problems solved by technology

[0004] In the prior art, in the process of repairing damaged PCCP pipelines, PC latex is mixed with cement to fill and seal the outside of the pipeline, and then the cement is maintained. However, the damage of PCCP pipeline damage is different, and some damage is relatively If the same method is used to deal with it, in a reasonable treatment, it will either waste materials, or it will be difficult to effectively repair the damaged PCCP pipeline. Therefore, how to deal with the damaged PCCP pipeline more effectively is a need. solved problem

Method used

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Embodiment Construction

[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0035] refer to figure 1 , is a PCCP pipeline rupture repair process disclosed in the present invention, which has three repair methods according to the degree of rupture, specifically as follows,

[0036] When a PCCP pipe breaks and is not leaking:

[0037] Step 1: heat and dry the damaged part of the drilled hole and its surroundings with a flame cutting tool to complete the inner surface of the hole formed by the damaged part of the drilled hole.

[0038] Step 2: Use a hard brush to clean the cracked part of the drilled hole, and dip the brush in water to moisten the crack.

[0039] Step 3: Apply the prepared epoxy resin evenly on the inner surface of the damaged hole to the outer edge.

[0040] Step 4: Use the configured epoxy mortar to level the cracked part, and brush the outer surface of the epoxy mortar repeatedly with a brush to smooth the mortar....

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Abstract

The invention relates to a PCCP pipeline rupture repair process. First, observe the damage degree of the pipeline. When the PCCP pipeline is ruptured and does not leak water: Step 1, use a flame cutting tool to heat and dry the damaged part of the drilled hole and its surroundings; Step 2, Use a hard brush to clean the cracked part of the drilled hole; step 3, apply the prepared epoxy resin evenly; step 4, use the prepared epoxy mortar to level the cracked part; step 5, use The steel plate is used to pave the bottom of the drilled hole; step 6, sprinkle water on the epoxy mortar for maintenance; when the part is broken: step 1, clean the damaged part; step 2, connect multiple reinforcing ribs at the interface; step 3, add Set water stop strips; step 4, pouring expansion concrete higher than the strength of PCCP pipe concrete on the outside, and spraying water on the expansion concrete. The present invention has the effect of effectively treating PCCP pipe damage in different ways according to different situations.

Description

technical field [0001] The invention relates to the technical field of pipeline repair, in particular to a PCCP pipeline rupture repair process. Background technique [0002] Prestressed steel cylinder concrete pipe (hereinafter referred to as PCCP pipe) is composed of prestressed steel wire, steel cylinder and concrete, and is a composite pipe with high strength, high impermeability and high sealing performance. This kind of pipe is made by winding the prestressed steel wire in the hoop on the concrete pipe core with steel cylinder, and finally spraying the cement mortar protective layer on the outside of the pipe. With the expansion of the construction scale of water delivery projects, the number of water delivery projects with large pipe diameters, high working pressures, and deep soil coverings has gradually increased. Prestressed steel cylinder concrete pipes have the advantages of high sealing, high strength, and high impermeability. Pipes The cost is moderate, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L55/16F16L55/175
CPCF16L55/1608F16L55/175
Inventor 夏海涛刘巍邢超邓旭龙邓林
Owner 北京京燕水务有限公司
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