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A rapid construction method for non-stop water contact between newly-built sewage pipelines and main pipelines

A technology for sewage pipelines and construction methods, which is applied to the sewer system, waterway system, buildings, etc., can solve the problems of difficult diving operations for divers, difficult underwater operations for frogmen, and increasing construction uncertainty, and achieves improved cutting. method, improve the range and precision of cutting, and eliminate potential safety hazards.

Active Publication Date: 2022-03-11
BCEG CIVIL ENG
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Problems solved by technology

Although this method can effectively complete the docking of new pipelines, it will inevitably cause water stoppage during the construction process, and it is difficult for divers to enter the water, which has certain safety risks
[0004] Currently, there are two methods of bumping construction. The first method is to stop the water supply of existing pipelines for bumping construction. Since there will be a large amount of toxic and harmful gases in the pipeline, and it is a limited space operation, the safety risk is high. In large pipelines It is also difficult to achieve partial water cutoff if the transcendence method is adopted
The second method is the frogman’s underwater demolition operation. Due to the large water volume and flow rate in the large pipeline, and the existence of low visibility, the frogman’s underwater operation is difficult, the safety risk is high, and the construction uncertainty is increased. Sexuality, virtually making the construction period impossible to guarantee

Method used

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  • A rapid construction method for non-stop water contact between newly-built sewage pipelines and main pipelines
  • A rapid construction method for non-stop water contact between newly-built sewage pipelines and main pipelines
  • A rapid construction method for non-stop water contact between newly-built sewage pipelines and main pipelines

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Experimental program
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Embodiment Construction

[0035] Preparation of construction components

[0036] 1) Laser cutting machine 6, such as Image 6 As shown, a cutting motor 61 is provided above the beam 62 at the top of the laser cutting machine 6, and the beam 62 is provided with a chute, and the slide block 68 that can make the cutting motor 61 and the ball screw 63 slide horizontally is provided in the chute, and the cutting motor 61 The output shaft passes through the slider 68 and is connected with a ball screw 63, the ball screw 63 is sheathed with a nut 64, one side of the nut 64 is fixedly connected with a laser cutter 65, and one end of the laser cutter 65 is provided with a laser generator, The other end is connected to the fixed sleeve 66 sleeved on the fixed rod 67 through the telescopic rod 69;

[0037] 2) Inverted U-shaped card slot 11, such as Figure 7 As shown, the inner surface of the inverted U-shaped draw-in groove 11 is provided with an asphalt protective layer 111, and the inner walls of both sides ...

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Abstract

A rapid construction method for the non-stop water connection between the new sewage pipeline and the main pipeline. The prefabricated caisson is used as the inspection well at the junction of the new pipeline and the large pipeline in operation. Set up the hoisting point, use the wire saw to cut the pipe, lift out the cut pipe, and then complete the collision operation. This method does not need to stop the water from the pipe, and does not require people to work underwater. This method is safe, has good economic effects, and has little impact advantage. The invention is suitable for the collision connection between the new sewage pipeline and the sewage pipeline in operation under the condition of non-stop water supply, and has certain social and economic benefits.

Description

technical field [0001] The invention relates to the technical field of municipal engineering pipeline construction, in particular to a rapid construction method for non-stop water contact between newly-built sewage pipelines and main pipelines. Background technique [0002] In the construction of new sewage pipelines, the collision between the new pipeline and the running main pipeline is a relatively common situation in the pipeline construction process. At this time, the running pipeline is in the state of passing water. Construction will inevitably cause water cutoff within a certain range. If the water cutoff time is too long, it will affect the production and life of nearby residents and enterprises, and the larger the diameter of the water cutoff pipe, the more difficult it will be to restore the water supply. If the pipelines inside are not effectively flushed, it will also bring certain hidden dangers to water quality safety. If the two pipelines can be quickly conn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E03F3/06E02D23/00E02D23/16B23K26/38B23K26/70B23K101/06
CPCE03F3/06E02D23/00E02D23/16B23K26/38B23K26/702B23K2101/06
Inventor 王震范春野韩雷李明李慧峰胡腾云
Owner BCEG CIVIL ENG
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