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Vacuum pump water-discharging device suitable for tunnel excavation

A vacuum pump and tunnel technology, which is applied in the field of wind tunnel excavation, dewatering, and tunnels, can solve problems such as difficult groundwater treatment, insufficient water supply, and easy damage to water pumps, and achieve the effects of overcoming poor drainage effects, improving construction efficiency, and ensuring excavation progress

Inactive Publication Date: 2016-05-25
SINOHYDRO BUREAU 11 CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this method of pumping and drainage are as follows: first, the water pump equipment needs to be moved frequently, and the water pump is easily damaged when the heat dissipation is not smooth, which delays the excavation time; Groundwater is difficult to handle during concrete pouring, which affects the quality of concrete pouring
The vacuum dewatering pump is easily blocked by sediment and debris, resulting in insufficient water supply and poor practicability

Method used

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  • Vacuum pump water-discharging device suitable for tunnel excavation
  • Vacuum pump water-discharging device suitable for tunnel excavation

Examples

Experimental program
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Effect test

Embodiment 1

[0025] like figure 1 As shown, a vacuum pump dewatering device suitable for tunnel excavation according to the present invention includes a vacuum pump 11. The vacuum pump 11 is provided with a water inlet pipe 12 and an outlet pipe 13. connected. Further, a water stop ring 141 is provided outside the connecting pipe 14 .

[0026] In this embodiment, the suction filter assembly includes a suction pipe 15 and a filter pipe 16, one end of the suction pipe 15 communicates with the filter pipe 16, and the other end communicates with the connecting pipe 14; further, the suction pipe 15 communicates with the filter pipe 15. The pipe 16 is integrated by welding.

[0027] Wherein, the suction pipe 15 and the filter pipe 16 are vertically arranged; the outside of the filter pipe 16 is wrapped with gauze (not shown in the figure). In this embodiment, the gauze is an iron gauze with four layers. The design of the iron gauze can filter the impurities entered by the filter pipe 16, suc...

Embodiment 2

[0035] like figure 2 As shown, a vacuum pump dewatering device suitable for tunnel excavation according to the present invention provides a second embodiment, which differs from Embodiment 1 in that both ends of the filter pipe 16 are blocked, and the pipe wall is provided with Several holes 161 . In this embodiment, the diameter of the holes 161 is 8 mm, and the distance between adjacent holes 161 is 30 mm. Further, the holes 161 are arranged in a quincunx shape. The arrangement of the holes 161 includes quincunx, but is not limited to this type, and also includes square, rhombus, and circle. The design of various types of holes 161 can meet the demands of drainage from various angles. Even if one of the holes 161 is blocked, the drainage efficiency will not be affected.

[0036] In this embodiment, the two ends of the filter pipe 16 are blocked, and the hole 161 is set on the wall of the filter pipe 16. The design of the hole 161 further prevents the mud from blocking t...

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Abstract

The invention relates to a vacuum pump water-discharging device suitable for tunnel excavation. The vacuum pump water-discharging device comprises a vacuum pump, wherein the vacuum pump is provided with a water inlet pipe and a water outlet pipe, and the water inlet pipe is communicated with a water suction and filtering assembly through a connecting pipe. The vacuum pump water-discharging device has the advantages that the vacuum pump water-discharging device can discharge out seeped water in a tunnel in time; the problems of poor water-discharging effect and time and labor waste of an existing submerged pump water-discharging device for tunnel excavation and water pump burnout due to poor heat dissipation are solved.

Description

technical field [0001] The invention relates to the technical field of excavation and dewatering of tunnels and air ducts, relates to the excavation of caverns with narrow excavation space and rich groundwater, and in particular to a vacuum pump dewatering device suitable for tunnel excavation. Background technique [0002] The traditional tunnel excavation dewatering is to set up a temporary water collection well 50cm below the excavation surface during the tunnel excavation process. The seepage water during the tunnel construction process is collected in the water collection well and then pumped out of the working face by a conventional submersible pump. The disadvantages of this method of pumping and drainage are as follows: first, the water pump equipment needs to be moved frequently, and the water pump is easily damaged when the heat dissipation is not smooth, which delays the excavation time; Groundwater is difficult to handle during concrete pouring, which affects the...

Claims

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Application Information

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IPC IPC(8): E02D19/10
CPCE02D19/10
Inventor 包高强温国勇陈多谋吴祥张建国赵凌哲李世勇
Owner SINOHYDRO BUREAU 11 CO LTD
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