CN205399447U - Vacuum pump precipitation device suitable for tunnel excavation - Google Patents
Vacuum pump precipitation device suitable for tunnel excavation Download PDFInfo
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- CN205399447U CN205399447U CN201620136123.2U CN201620136123U CN205399447U CN 205399447 U CN205399447 U CN 205399447U CN 201620136123 U CN201620136123 U CN 201620136123U CN 205399447 U CN205399447 U CN 205399447U
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- vacuum pump
- tunnel excavation
- device suitable
- tube
- dewatering device
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Abstract
The utility model relates to a vacuum pump precipitation device suitable for tunnel excavation, including the vacuum pump, the vacuum pump is equipped with inlet tube and outlet pipe, the inlet tube is through the connecting pipe and the filtering component intercommunication that draws water. The utility model discloses a superior effect lies in: vacuum pump precipitation device can in time be discharged, and the tunnel is interior to seep water, and its equipment is simple, the removal is convenient, with low costs, has guaranteed the excavation progress in tunnel, the effectual efficiency of construction that has improved, overcome dive among the current tunnel excavation pump drainage device drainage effect poor, waste time and energy and the difficult problem of water pump because of dispelling the heat less than burn out.
Description
Technical field
This utility model relates to tunnel, air channel excavation and precipitation technical field, and space is narrow, the cavern excavation of rich groundwater to relate to excavation, particularly relates to a kind of vacuum pump dewatering device suitable in tunnel excavation.
Background technology
Traditional tunnel excavation precipitation is in tunnel excavation process, arranges interim sump lower than excavation face 50cm, and the infiltration in constructing tunnel process is pumped to outside work surface by conventional diving pump after being pooled to sump.Such pump drainage mode weak point has: one is often to move pump equipment, and when heat radiation is not smooth, water pump is easily damaged, and delays digging time；Two is easily block water pump and drainage pipeline in pump drainage process；Three is that subsoil water is difficult to process when underplate concrete is built, and affects concrete pouring quality.Because the metro using mining method constructing tunnel scope of operation is narrow and small, work progress can produce a large amount of body refuse mud and easily block pumping equipment, affect the excavation progress in tunnel.Vacuum pump dewatering device described in the utility model is aiming at what this background proposed.
The Chinese patent that publication number is CN103276740A discloses a kind of combined type tube well dewatering system, including precipitation pipe well, straight empty pump；Described precipitation pipe well is vertically embedded in ground layer soil body, and the top closure of precipitation pipe well, the bottom well head of precipitation pipe well is connected to one section of pipe well chimney filter, is provided with immersible pump, liquidometer in precipitation pipe well；Described vacuum pump is positioned at outside precipitation pipe well, and the air entry of vacuum pump accesses the well chamber of precipitation pipe well through pipe fitting；The pump mouth of a river of described immersible pump is connected to outside precipitation pipe well through pipe fitting；It is characterized in that: also include at least one light well point pipe；Each light well point pipe is embedded in the soil body of precipitation pipe well periphery respectively, the top closure of each light well point pipe, and the bottom mouth of pipe of each light well point pipe is connected to a precipitation filter；Each light well point pipe is respectively connected pipe and connection controls valve and is coupled with the well chamber of precipitation pipe well.Filling filtrate between outer wall and the surrounding soil body of described precipitation pipe well, constitute filter material layer, the end face of described filter material layer is lower than 1～2 meter of ground, and the bottom surface of filter material layer is lower than pipe well chimney filter.This combined type tube well dewatering system structure is complicated, it is necessary to substantial amounts of pipe-line layout, and use occasion is limited.
Publication number is that the Chinese patent of CN102032222A discloses a kind of Novel vacuum water dropping pump and includes motor, connecting rack, water tank, the pump housing, ejector, horn mouth, pipeline and outlet pipe；This vacuum pump has a water tank that can fill water, and the lateral surface of water tank is provided with a connecting rack, and this connecting rack is fixing with motor to be connected；The internally installed of this water tank has the pump housing, and the rotating shaft of this pump housing is stretched out water tank and is connected with electric machine shaft driving to connecting rack, and this connecting rack both ensure that the steadiness that the pump housing is connected with motor, conveniently takes again maintenance apart；It is connected to pipeline between this pump housing and water tank, this pipeline is provided with ejector, the outlet of this ejector is provided with horn mouth, this horn mouth gradually tapers up, and fixing with pipeline is connected, water flows through in horn mouth entrance pipeline and water tank, adds vacuum, and pipeline is not easily shot through by current, substantially prolongs the service life of ejector；This water tank is provided with outlet pipe.This vacuum-dewatering pump is easily blocked by silt foreign material, causes insufficient water, poor practicability.
Utility model content
In order to overcome defect of the prior art, the purpose of this utility model is in that to propose a kind of vacuum pump dewatering device suitable in tunnel excavation.
This utility model is achieved through the following technical solutions:
A kind of vacuum pump dewatering device suitable in tunnel excavation, including vacuum pump, described vacuum pump is provided with water inlet pipe and outlet pipe, and described water inlet pipe is connected with the filter assemblies that draws water by connecting tube.
This utility model is preferably, described in the filter assemblies that draws water include drinking-water pipe, filter tube, described drinking-water pipe one end connects with filter tube, and the other end connects with connecting tube.
This utility model is preferably, and described drinking-water pipe and filter tube are vertically arranged.Further, described drinking-water pipe is set to one with filter tube by welding manner.
This utility model is preferably, and is provided with seal ring outside described connecting tube.
This utility model is preferably, and adopts gauze parcel outside described filter tube.
This utility model is preferably, and the number of plies of described gauze is 2～10 layers.
This utility model is preferably, and described filter tube two ends block, and its tube wall is provided with some holes.
This utility model is preferably, and described filter tube adopts metal tube or plastic tube.
This utility model is preferably, and the diameter of described hole is 2～20mm, and the spacing of adjacent hole is 5～50mm.
This utility model is preferably, and the diameter of described hole is 5～8mm, and the spacing of adjacent hole is 30～40mm.
This utility model is preferably, and described hole is a kind of layout in blossom type, square, rhombus, circle.
Compared with prior art, superior effect of the present utility model is in that: vacuum pump dewatering device can discharge infiltration in tunnel in time, and its equipment is simple, conveniently moving, cost are low, it is ensured that the excavation progress in tunnel, effectively raises efficiency of construction；Overcome in existing tunnel excavation that submersible pump drain system drainage effect is poor, waste time and energy and a difficult problem that water pump burns out because of weak heat-dissipating.
Accompanying drawing explanation
Fig. 1 is the Construction State schematic diagram of described a kind of vacuum pump dewatering device suitable in tunnel excavation；
Fig. 2 is the structural representation of the filter assemblies that draws water described in the utility model.
Description of reference numerals is as follows:
11-vacuum pump, 12-water inlet pipe, 13-outlet pipe, 14-connecting tube, 141-seal ring, 15-drinking-water pipe, 16-filter tube, 161-hole, 17-sump, 171-cover plate, 18-supporting grid, 19-bis-serve as a contrast concrete layer.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, this utility model is described in further detail.
Embodiment 1
As it is shown in figure 1, a kind of vacuum pump dewatering device suitable in tunnel excavation described in the utility model, including vacuum pump 11, described vacuum pump 11 is provided with water inlet pipe 12 and outlet pipe 13, and described water inlet pipe 12 is connected with the filter assemblies that draws water by connecting tube 14.Further, it is provided with seal ring 141 outside described connecting tube 14.
In the present embodiment, described in the filter assemblies that draws water include drinking-water pipe 15, filter tube 16, described drinking-water pipe 15 one end connects with filter tube 16, and the other end connects with connecting tube 14；Further, described drinking-water pipe 15 is set to one with filter tube 16 by welding manner.
Wherein, described drinking-water pipe 15 is vertically arranged with filter tube 16；Gauze (not shown) parcel is adopted outside described filter tube 16.In the present embodiment, described gauze is gauze screen and its number of plies is four layers.The design of described gauze screen can filter the impurity entered by filter tube 16, such as silt, it is prevented that blocking filter tube 16.
In the present embodiment, described filter tube 16 is plastic tube.Compared with metal tube, plastic tube light weight is inexpensive, convenient transportation, can reduce construction cost.
In the specific implementation, first disposing at the scene vacuum pump 11, and water inlet pipe 12, outlet pipe 13 are respectively connecting to the two ends of vacuum pump 11, described water inlet pipe 12 is connected with the drinking-water pipe 15 of the filter assemblies that draws water by connecting tube 14, when needing precipitation, the filter assemblies that will draw water is positioned in sump 17.Because digging process can produce mud, at the outside parcel gauze screen of the filter tube 16 of the filter assemblies that draws water, it is prevented that mud blocks filter tube 16 and then affects displacement, so needing regularly to be cleared up by the mud on gauze screen surface.After excavation and supporting grid 18 complete, lengthen connecting tube 14.Seal ring 141 is welded in the outside of connecting tube 14.Reserved sump 17 is carried out slip casting backfill after terminating by two lining concrete layer 19 constructions.
When described two lining concrete layers 19 are constructed, seal ring 141 described in this utility model can prevent connecting tube 14 tube wall from seeping water, it is ensured that the construction quality of described two lining concrete layers 19, improves efficiency of construction.
When two lining concrete layers 19 are built, vacuum pump dewatering device described in the utility model ensures anhydrous operation during concreting.Being embedded in the french drain outside waterproof layer by filter tube 16, periphery lays peastone, prevents and treats because of the mouth of pipe of external force extruding blocking filter tube 16.
Vacuum pump dewatering device suitable in tunnel excavation described in the utility model has been successfully applied to Shenzhen Metro 7301-2 and has marked Xili Lake station to western beautiful station interval service channel, air channel excavation project.In this engineering, seepage in underground amount is big, again because passage is between two shield tunnels, construction site is narrow and small, construction drainage difficulty, affects construction speed, the use of vacuum pump dewatering device described in the utility model, successfully solve this difficult problem, directly save cost 100000 yuan for this project, save about 7 days durations.At present, the interval service channel in Xili Lake station to western beautiful station, air channel two serve as a contrast precondition examination and pass through, and obtain the favorable comment of owner and management, and result of use is notable.
It should be noted that in use, it is necessary to the gauze periodic cleaning outside described filter tube 16, have an advantage in that to take efforts face little, do not limited by water yield size, water turbidity degree, it is possible to continuous operation and conveniently moving safety.
Embodiment 2
As in figure 2 it is shown, a kind of vacuum pump dewatering device suitable in tunnel excavation described in the utility model, it is provided that the second embodiment, with the distinguishing characteristics of embodiment one be: described filter tube 16 two ends block, and its tube wall is provided with some holes 161.In the present embodiment, the diameter of described hole 161 is 8mm, and the spacing of adjacent hole 161 is 30mm.Further, described hole 161 is arranged in blossom type.The arrangement mode of described hole 161 includes blossom type, but is not limited to the type, additionally includes square, rhombus, circle.The design of all kinds hole 161, can meet the demand from all angles draining.Even if one of them hole 161 blocks, without affecting drainage efficiency.
In the present embodiment, adopting the mode of filter tube 16 two ends closure, by arranging hole 161 on the tube wall of filter tube 16, the design of described hole 161 prevents mud blocking filter tube 16 further, extends the cleaning cycle of filter tube 16, saves cost of labor.
This utility model is not limited to above-mentioned embodiment, and when without departing substantially from flesh and blood of the present utility model, any deformation that it may occur to persons skilled in the art that, improvement, replacement each fall within scope of the present utility model.
Claims (10)
1. the vacuum pump dewatering device being applicable to tunnel excavation, it is characterised in that including vacuum pump, described vacuum pump is provided with water inlet pipe and outlet pipe, described water inlet pipe is connected with the filter assemblies that draws water by connecting tube.
2. a kind of vacuum pump dewatering device suitable in tunnel excavation according to claim 1, it is characterised in that be provided with seal ring outside described connecting tube.
3. a kind of vacuum pump dewatering device suitable in tunnel excavation according to claim 1, it is characterised in that described in the filter assemblies that draws water include drinking-water pipe, filter tube, described drinking-water pipe one end connects with filter tube, and the other end connects with connecting tube.
4. a kind of vacuum pump dewatering device suitable in tunnel excavation according to claim 3, it is characterised in that described drinking-water pipe and filter tube are vertically arranged.
5. a kind of vacuum pump dewatering device suitable in tunnel excavation according to claim 3 or 4, it is characterised in that adopt gauze parcel outside described filter tube.
6. a kind of vacuum pump dewatering device suitable in tunnel excavation according to claim 3 or 4, it is characterised in that described filter tube two ends block, and its tube wall is provided with some holes.
7. a kind of vacuum pump dewatering device suitable in tunnel excavation according to claim 3 or 4, it is characterised in that described filter tube adopts metal tube or plastic tube.
8. a kind of vacuum pump dewatering device suitable in tunnel excavation according to claim 5, it is characterised in that the number of plies of described gauze is 2～10 layers.
9. a kind of vacuum pump dewatering device suitable in tunnel excavation according to claim 6, it is characterised in that the diameter of described hole is 2～20mm, and the spacing of adjacent hole is 5～50mm.
10. a kind of vacuum pump dewatering device suitable in tunnel excavation according to claim 6, it is characterised in that described hole is a kind of layout in blossom type, square, rhombus, circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620136123.2U CN205399447U (en) | 2016-02-23 | 2016-02-23 | Vacuum pump precipitation device suitable for tunnel excavation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620136123.2U CN205399447U (en) | 2016-02-23 | 2016-02-23 | Vacuum pump precipitation device suitable for tunnel excavation |
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| Publication Number | Publication Date |
|---|---|
| CN205399447U true CN205399447U (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620136123.2U Active CN205399447U (en) | 2016-02-23 | 2016-02-23 | Vacuum pump precipitation device suitable for tunnel excavation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604076A (en) * | 2016-02-23 | 2016-05-25 | 中国水利水电第十一工程局有限公司 | Vacuum pump water-discharging device suitable for tunnel excavation |
-
2016
- 2016-02-23 CN CN201620136123.2U patent/CN205399447U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604076A (en) * | 2016-02-23 | 2016-05-25 | 中国水利水电第十一工程局有限公司 | Vacuum pump water-discharging device suitable for tunnel excavation |
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