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A method for arranging circular drainage pipes of pre-buried tunnels

A layout method and drainage pipe technology, applied in drainage, earthwork drilling, safety devices, etc., can solve problems such as extrusion and deformation of circumferential drainage pipes, and achieve the effect of reducing negative effects and excellent suction and drainage characteristics

Active Publication Date: 2021-01-08
RES INST OF HIGHWAY MINIST OF TRANSPORT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims at the existing problems or deficiencies in the relationship between the existing initial support, circumferential drainage pipes and secondary lining, and provides a pre-buried tunnel circumferential drainage pipe arrangement method, by pre-embedding the circumferential drainage pipes To the initial support layer, it can solve the disadvantages of extrusion and deformation of the circumferential drainage pipe, and use the flushing inner pipe to regularly clean the sediment or crystals deposited in the drainage pipe to ensure smooth drainage of the tunnel and eliminate water leakage in the tunnel

Method used

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  • A method for arranging circular drainage pipes of pre-buried tunnels
  • A method for arranging circular drainage pipes of pre-buried tunnels
  • A method for arranging circular drainage pipes of pre-buried tunnels

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Embodiment Construction

[0029] Below with the accompanying drawings ( Figure 1-Figure 6 ) to illustrate the present invention.

[0030] figure 1 It is a schematic diagram of the overall structure of the tunnel formed by implementing a pre-buried tunnel annular drainage pipe arrangement method of the present invention.

[0031] figure 2 yes figure 1 Schematic diagram of the structure of the tunnel. image 3 yes figure 2 Schematic diagram of the structure of the central drainage pipe. Figure 4 yes figure 2 Schematic diagram of the structure of the fixed groove. Figure 5 yes figure 2 Schematic diagram of the three-dimensional structure of the central drainage pipe. Figure 6 yes figure 2 Schematic diagram of the structure of the flushing inner tube. Such as Figure 1 to Figure 6As shown, a pre-buried tunnel circumferential drainage pipe layout method, the circumferential drainage pipe 2 is embedded in the initial support layer 1, the exposed surface of the bottom A of the circumferen...

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Abstract

The invention discloses a pre-embedded tunnel annular water drainage pipe arrangement method. The method is characterized in that an annular drainage pipe is embedded in a primary supporting layer inadvance, the exposed surface of the bottom of the annular drainage pipe flushes with the surface of the primary supporting layer, the defect of squeezing deformation of the annular drainage pipe can be overcome, and a flushing inner pipe is used for clearing silt or crystal substances which precipitate in the drainage pipe regularly, so that smooth drainage of a tunnel is ensured, and tunnel waterleakage harm is eliminated.

Description

technical field [0001] The invention relates to the technical field of tunnel drainage, in particular to a method for arranging a pre-embedded tunnel circumferential drainage pipe. The circumferential drainage pipe is pre-embedded in the primary support layer, which can not only solve the disadvantages of extrusion deformation of the circumferential drainage pipe, In addition, the silt or crystals deposited in the drainage pipe are regularly cleaned by flushing the inner pipe, which is conducive to ensuring smooth drainage of the tunnel and improving the leakage of water in the tunnel. Background technique [0002] In tunnel engineering, the circumferential drainage pipe is often squeezed and deformed during the concrete pouring process, which affects its drainage effect. After the circumferential drainage pipe is buried, there is often a large gap between the secondary lining, the pipe wall and the initial support, which has a negative impact on the thickness of the seconda...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F16/02
CPCE21F16/02
Inventor 许崇帮
Owner RES INST OF HIGHWAY MINIST OF TRANSPORT
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