Existing road underground drainage pipeline additionally installing method

An underground drainage and pipeline technology, applied in the sewer system, water supply device, waterway system, etc., can solve the problem of unplanned underground drainage network, affecting traffic, etc., to reduce damage to road structure strength, delay initial setting time, reduce impact effect

Active Publication Date: 2019-06-14
广州市中港建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Underground drainage pipes are usually buried under urban roads. Some urban roads were built without planning underground drainage pipe networks. With the increasing urban population and urban drainage increasing day by day, it is the general trend to increase the density of drainage pipe networks. However, due to the underground Drainage pipes are usually buried under the road. If you want to install underground drainage pipes on existing roads, you need to dig roads and dig pipe trenches to install underground drainage pipes. This will seriously affect traffic. Therefore, there is still room for improvement

Method used

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  • Existing road underground drainage pipeline additionally installing method

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Effect test

Embodiment 1

[0053] A method for adding an existing road underground drainage pipeline, the underground drainage pipeline includes a plurality of pipeline units, and the pipeline units are PE plastic pipes;

[0054] The existing road underground drainage pipeline installation method comprises the following steps:

[0055] S1 excavation of the construction well, details are as follows:

[0056] Carry out segmented construction according to the total length of the pipeline. In this embodiment, the construction length of each segment is 1km, measured from the beginning of the pipeline, marked at every 1km on the side of the road, and excavating the construction well at the marked position on the side of the road , the depth of the construction well is greater than the design depth of the underground drainage pipe, and the height of the bottom of the construction well is 1m lower than the design height of the bottom of the underground drainage pipe. A ladder is fixedly connected to the side w...

Embodiment 2

[0077] The difference with embodiment 1 is:

[0078] The specific differences between step S4 and step S7 in the existing road underground drainage pipeline installation method are as follows:

[0079] S4 Drilling and digging straight holes, details are as follows:

[0080] Use drilling equipment to drill along the extension direction of the design of the underground drainage pipeline to form a straight hole, and drill to connect to the adjacent underground construction room through the straight hole;

[0081] The inner diameter of the straight hole is 3cm larger than the designed outer diameter of the underground drainage pipe.

[0082] S7 grouting, the details are as follows:

[0083] Put two ring-shaped pouring formworks on the underground drainage pipe from both ends of the underground drainage pipe passing through the straight hole respectively, attach the pouring formwork to the side wall of the underground construction room with the straight hole, and pass the sealing...

Embodiment 3

[0085] The difference with embodiment 1 is:

[0086] The preparation method of the lubricated cement slurry comprises the following steps:

[0087] S01 Add 100kg of cement, 12kg of propylene glycol, 1.5kg of retarder, 4kg of lotus leaf powder, 4kg of polytetrafluoroethylene powder and 37kg of water into the stirring tank, and stir for 5min at a speed of 60r / min;

[0088] S02 Add 50kg of fumed silica, 26kg of talcum powder, and 31kg of waste tire rubber powder into the stirring tank at a rotation speed of 45r / min, stir for 5min at a rotation speed of 15r / min, and continue stirring until use is complete.

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Abstract

The invention relates to the technical field of pipeline construction, and provides an existing road underground drainage pipeline additionally installing method. The existing road underground drainage pipeline additionally installing method aims to solve the problem of affecting traffic when an underground drainage pipeline is installed. According to the technical scheme, an underground drainagepipeline comprises a plurality of pipeline units; and the existing road underground drainage pipeline additionally installing method includes the following steps that S1, a construction well is excavated; S2, a construction channel is excavated; S3, an underground construction chamber is excavated and supported; S4, straight holes are drilled and excavated; S5, the straight holes are subjected topretreatment; S6, the underground drainage pipelines are laid, specifically, a plurality of pipeline units are sequentially ejected into the straight holes, and the lubricated cement slurry is sprayedbefore the pipe units are ejected; and S7, grouting is performed, specifically, the lubricated cement slurry is injected to fill the gaps between the underground drainage pipes and the straight holes. By excavating the construction well on one side of a road and excavating the underground construction chamber below the road, the working space is enabled to be an underground space, the whole construction process is completed underground, road excavation is avoided, and the influence on traffic is reduced.

Description

technical field [0001] The invention relates to the technical field of pipeline construction, in particular to a method for adding an existing road underground drainage pipeline. Background technique [0002] As the main line of urban water delivery, underground drainage pipes can increase the speed of urban drainage, make wastewater flow underground, and reduce air pollution. [0003] Underground drainage pipes are usually buried under urban roads. Some urban roads were built without planning underground drainage pipe networks. With the increasing urban population and urban drainage increasing day by day, it is the general trend to increase the density of drainage pipe networks. However, due to the underground Drainage pipes are usually buried under the road. If you want to install underground drainage pipes on existing roads, you need to dig roads and trenches to install underground drainage pipes. This will seriously affect traffic. Therefore, there is still room for impr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03F3/06
Inventor 王宸珲
Owner 广州市中港建设工程有限公司
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