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Seepage-proofing structure of sewage pipeline and construction method of seepage-proofing structure

A technology for sewage pipes and pipes, which is applied in the sewer system, waterway system, water supply device, etc., can solve the problems of concrete sealing failure, large static pressure of pipes, and concrete infiltration, etc., and achieves enhanced sealing and anti-seepage performance and good compressive strength. , The effect of good compressive deformation ability

Inactive Publication Date: 2022-03-29
广东恒辉建设集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that when the water flow inside the sewage pipe is too large, there is a large internal static pressure in the sewage pipe, and the water molecules expand to the side wall of the pipe, and the concrete at the joint of the pipe is easily infiltrated by water molecules, resulting in concrete Seal failure, sewage seepage defects

Method used

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  • Seepage-proofing structure of sewage pipeline and construction method of seepage-proofing structure
  • Seepage-proofing structure of sewage pipeline and construction method of seepage-proofing structure
  • Seepage-proofing structure of sewage pipeline and construction method of seepage-proofing structure

Examples

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Effect test

preparation example 1

[0048] This preparation example discloses a preparation method of a composite waterproof cover, which specifically includes the following steps:

[0049] Step 1-1, preparation of polyurethane prepolymer: Add 25kg of polyether polyol and 5kg of toluene-2,4-diisocyanate into the reaction kettle, and keep it warm at a temperature of 80°C and a speed of 500rmp-600rmp. 3h, obtain polyurethane prepolymer;

[0050] Step 1-2, mix 8 kg of 325 mesh diatomite, 12 kg of nano-graphene, 10 kg of polytetrafluoroethylene emulsion and 2 kg of gum arabic into a ball mill tank, and ball mill for 30 min at a speed of 60 r / min to obtain a hydrophobic mixture;

[0051] Step 1-3, mixing hydrophobic mixture, 30kg polyurethane prepolymer, 1kg lignocellulose, 2kg dibutyl phthalate and 0.1kg butyl hydroxyanisole (BHA) into the stirring tank, at a temperature of 100 At ℃, stir at a stirring speed of 1000rmp for 1h to obtain a waterproof coating;

[0052] Step 1-4: pour the waterproof paint into the mol...

preparation example 2

[0054] The difference between this preparation example and preparation example 1 is that the contents of each component of the waterproof coating are different and the selection of plasticizer and antioxidant is different, specifically: step 1-1, preparing polyurethane prepolymer: 30kg of Add polyols and 7kg of toluene-2,4-diisocyanate into the reactor, and react at 70°C for 4 hours to obtain a polyurethane prepolymer; step 1-2, 12kg of 325-mesh diatomite, 15kg of nano-graphene, 15kg polytetrafluoroethylene emulsion and 3kg gum arabic are mixed; step 1-3, the hydrophobic mixture, 35kg polyurethane prepolymer, 3kg lignocellulose and, 3kg epoxidized soybean oil and 0.3kg butylated hydroxytoluene (BHT) Mix and add to stirring kettle.

preparation example 3

[0056] The difference between this preparation example and preparation example 1 is: 0.3 kg of vinylbisstearamide is also added in step 1-2.

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Abstract

The invention relates to an anti-seepage structure of a sewage pipeline and a construction method of the anti-seepage structure. The anti-seepage structure comprises a plurality of pipelines spliced with one another and an anti-seepage wiping belt arranged outside the joint of every two adjacent pipelines. A waterproof mortar sealing layer is filled at the joint of two adjacent sections of pipelines; two adjacent sections of pipelines are fixedly connected through a waterproof mortar sealing layer; the composite waterproof jacket is arranged in the joint of the two adjacent sections of pipelines; the composite waterproof jacket comprises a metal wire net rack and a waterproof coating layer coating the metal wire net rack, and the waterproof coating layer is made of waterproof paint; the composite waterproof sleeve is in a cylinder shape with two open ends, the two ends of the composite waterproof sleeve extend into the two adjacent sections of pipelines respectively, and the outer side wall of the composite waterproof sleeve and the inner walls of the two adjacent sections of pipelines are fixed in a sealed mode. The anti-seepage structure further comprises a fixing piece used for limiting the composite waterproof sleeve from sliding in the pipeline. The anti-seepage structure has the effect of improving the anti-seepage performance of the sewage pipeline.

Description

technical field [0001] The application relates to the field of pipeline construction, in particular to an anti-seepage structure of a sewage pipeline and a construction method thereof. Background technique [0002] In the transportation of underground sewage pipelines, most of the sewage contains toxic substances discharged from chemical and chemical enterprises and industrial production enterprises. In these sewage transportation, if there is leakage, it will cause great harm to the environment. Therefore, anti-seepage treatment of sewage pipelines is very necessary. [0003] The existing anti-seepage treatment of sewage pipelines is usually to pour micro-expansion fine stone concrete at the joints of the pipes, and the slight expansion between the joints of the pipes will reduce the gap between the two, and then the joints of the pipes will Apply waterproof paint to the outside for external protection. [0004] In view of the above-mentioned related technologies, the inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03F3/04E03F3/06C09D175/08C09D7/61C09D7/65
CPCE03F3/04E03F3/06C09D175/08C09D7/61C09D7/65C08K2201/011C08L27/18C08L5/00C08K3/042C08K7/26C08K3/346C08L75/04C08L5/16
Inventor 段春平李湘杰罗建中郑小兰向仕全黄广群袁耀
Owner 广东恒辉建设集团股份有限公司