CN209227570U - Stratum dewatering construction device - Google Patents
Stratum dewatering construction device Download PDFInfo
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- CN209227570U CN209227570U CN201821931560.9U CN201821931560U CN209227570U CN 209227570 U CN209227570 U CN 209227570U CN 201821931560 U CN201821931560 U CN 201821931560U CN 209227570 U CN209227570 U CN 209227570U
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- stratum
- insertion tube
- tube
- vacuum pump
- aqueduct
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Abstract
The utility model discloses a kind of stratum dewatering construction devices, insertion tube including aqueduct, vacuum pump and insert into stratum, the tube wall of insertion tube is equipped with the limbers being interlinked to the outside in multiple, vacuum pump is connected to insertion tube by diversion duct occlusion, and the outer wall wrapping of insertion tube has for stopping the strainer that powder fine sand side passes through in stratum.The stratum dewatering construction device has many advantages, such as that detachable, structure is simple, installation is convenient, main material is reusable and precipitation efficiency is high.
Description
Technical field
It crosses sedimentary stratum technical field of construction, more particularly to is suitable for coastal thick the utility model relates to coastal Hai Lu
Sand, fine sand, fine sand layer a kind of stratum dewatering construction device.
Background technique
In the coastal or inland city of numerous construction subways, it is widely present extra large land interaction sedimentary stratum, specific manifestation
To be widely present thin silt, Extra-fine sand is saturated Extra-fine sand under reciprocal shear action, pore volume is prominent in circumstance of flowing water
So reducing, Extra-fine sand becomes dense, but the pore water of Extra-fine sand can not exclude in time in stratum, and pore water pressure is caused to rise,
Conventional tunnel construction is all made of slip casting and dewatering well mode and carries out reinforcing precipitation processing to the tunnel perimeter soil body, can not keep away completely
Exempt from constructing tunnel region infiltration and water burst, pump drainage such as do not carried out to fine sand layer pore water in Tunnel, in digging process
There may be the risks such as face quicksand, piping.The excavation that Mining Method boring construction is carried out in such soil layer is often pollinated
It is more than fine sand layer that all badness features influence.
Utility model content
The technical problems to be solved in the utility model overcomes existing Mining Method boring construction that can not carry out precipitation in hole
Deficiency provides a kind of ground detachable, structure is simple, installation is convenient, main material is reusable and precipitation efficiency is high
Layer dewatering construction device.
In order to solve the above technical problems, the utility model uses following technical scheme:
A kind of stratum dewatering construction device, the insertion tube including aqueduct, vacuum pump and insert into stratum, the insertion tube
Tube wall is equipped with the limbers being interlinked to the outside in multiple, and the vacuum pump is connected to the insertion tube by the diversion duct occlusion,
The outer wall wrapping of the insertion tube has for stopping the strainer that powder fine sand side passes through in stratum.
As a further improvement of the above technical scheme:
The aqueduct includes the first straight tube, elbow and the second straight tube, and the closed at one end of first straight tube is connected to institute
Insertion tube is stated, the other end is connected to one end of the elbow, and the vacuum pump passes through second straight tube and the elbow
Other end connection.
The quantity of the insertion tube is set as at least two, and the aqueduct includes the first straight tube, elbow, the second straight tube and three
Pass joint, the elbow, each three-way connection pass sequentially through the second straight tube connection, the elbow and each institute between vacuum pump
It states three-way connection and passes through first straight tube respectively and be connected to corresponding insertion tube.
It further include sump, the vacuum pump is connected with drainpipe, and the drainpipe protrudes into the sump.
The strainer uses 80 mesh Dense mesh screens.
The junction of the aqueduct and the insertion tube is blocked by leak stopping king.
The aqueduct is arranged to steel-tube construction.
Compared with the prior art, the advantages of the utility model are:
The utility model stratum dewatering construction device includes the insertion tube of aqueduct, vacuum pump and insert into stratum, insertion tube
Tube wall be equipped with the limbers that are interlinked to the outside in multiple, vacuum pump is connected to insertion tube by diversion duct occlusion, insertion tube outside
Wall wrapping has for stopping the strainer that powder fine sand side passes through in stratum.Precipitation Process: vacuum pump is opened, vacuum pump, which is constantly extracted out, to be drawn
The inner air that water pipe and insertion tube are connected to reach the water on extraction stratum, then passes through so that forming draught head with outside
The effect of aqueduct discharge.In Precipitation Process process, since the outer wall wrapping of insertion tube has strainer, it is thin to block powder in stratum
Sand enters in insertion tube, it is therefore prevented that limbers and insertion tube are pollinated the blocking of fine sand mud, are conducive to improve efficiency of drawing water.The stratum
Level of ground water in constructing tunnel region can be effectively reduced in dewatering device, make constructing tunnel groundwater level lower than tunnel excavation
Face had both eliminated the risks such as tunnel tunnel face drift sand, piping, guaranteed that construction safety moves forward steadily, and kept tunnel front dry
Dry no ponding, substantially increases construction operation efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model stratum dewatering construction Installation practice one.
Fig. 2 is the structural schematic diagram of insertion tube in the dewatering construction device of the utility model stratum.
Fig. 3 is the schematic cross-sectional view of A-A in Fig. 2.
Fig. 4 is the structural schematic diagram of embodiment two in the dewatering construction device of the utility model stratum.
Each label indicates in figure:
1, aqueduct；11, the first straight tube；12, elbow；13, the second straight tube；14, three-way connection；2, vacuum pump；3, it is inserted into
Pipe；4, strainer；5, stratum；6, sump；7, drainpipe；8, leak stopping king.
Specific embodiment
The utility model is described in further details below with reference to Figure of description and specific embodiment.
Embodiment one:
Fig. 1 to Fig. 3 shows the stratum dewatering construction device of embodiment one, including aqueduct 1, vacuum pump 2 and insertion ground
The insertion tube 3 of layer 5, the tube wall of insertion tube 3 are equipped with the limbers being interlinked to the outside in multiple, and vacuum pump 2 is connected by the closing of aqueduct 1
It is connected to insertion tube 3, the outer wall wrapping of insertion tube 3 has for stopping the strainer 4 that powder fine sand side passes through in stratum 5.In the structure, insert
Enter pipe 3 and protrude into the stratum 5 for needing precipitation, outer wall wraps up strainer 4, and aqueduct 1 and the junction of insertion tube 3 are blocked up by following
Leakage king 8 blocks, so that realizing closing connection, vacuum pump 2 is placed on outside stratum 5, and far from the stratum 5 for needing precipitation.Drop
Water process: opening vacuum pump 2, and vacuum pump 2 constantly extraction aqueduct 1 and the inner air that is connected of insertion tube 3 are so that with outside
Draught head is formed, to reach the water on extraction stratum 5, then the effect being discharged by aqueduct 1.In Precipitation Process process, by
There is strainer 4 in the outer wall wrapping of insertion tube 3, blocks powder fine sand in stratum 5 and enter in insertion tube 3, it is therefore prevented that limbers is (in figure
Be not shown) and each pipeline be pollinated the blocking of fine sand mud, be conducive to improve efficiency of drawing water.The stratum dewatering construction device overall structure
Simply, installation is convenient, while construction efficiency is high.
In the present embodiment, aqueduct 1 includes the first straight tube 11, elbow 12 and the second straight tube 13, one end of the first straight tube 11
Closing is connected to insertion tube 3, and the other end is connected to one end of elbow 12, and vacuum pump 2 passes through the second straight tube 13 and elbow 12
Other end connection.In the structure, aqueduct 1 is in turn connected to form using the first straight tube 11, elbow 12 and the second straight tube 13, is convenient for
The dismounting of aqueduct 1.
It further include sump 6 in the present embodiment, vacuum pump 2 is connected with drainpipe 7, and drainpipe 7 protrudes into sump 6.The knot
In structure, for collecting the water released from stratum 5, sump 6 can be placed on transport vehicle sump 6, convenient for transfer.
In the present embodiment, strainer 4 uses 80 mesh Dense mesh screens.The filter effect of the close mesh filter screen of 80 mesh is more preferably.
In the present embodiment, aqueduct 1 and the junction of insertion tube 3 are blocked by leak stopping king 8.Using leak stopping king 8 into
Row blocks, easy for construction, meanwhile, it dismantles also simple.
In the present embodiment, aqueduct 1 is arranged to steel-tube construction.In the structure, insertion tube 3 is that diameter is 50mm(outer diameter),
The steel pipe of wall thickness 3.0mm；Aqueduct 1 is diameter 42mm(outer diameter), the steel pipe of wall thickness 3.0mm.
Embodiment two:
Fig. 4 shows the stratum dewatering construction device of embodiment two, and the quantity of insertion tube 3 is set as three (at least two),
Aqueduct 1 includes the first straight tube 11, elbow 12, the second straight tube 13 and three-way connection 14, elbow 12, each three-way connection 14, vacuum
Pass sequentially through the connection of the second straight tube 13 between pump 2, elbow 12 and each three-way connection 14 respectively by the first straight tube 11 with it is corresponding
Insertion tube 3 is connected to.In the structure, vacuum pump 2 is connected to multiple insertion tubes 3 to increase precipitation efficiency, and vacuum pump 2 passes through aqueduct
1 is connected to multiple insertion tubes 3, and aqueduct 1 includes the first straight tube 11, elbow 12, the second straight tube 13 and three-way connection 14, each to insert
Enter pipe 3 and is all closed the separate insertion of the first straight tube 11 for being connected with the first straight tube 11, connecting on the insertion tube 3 farthest from vacuum pump 2
One end of pipe 3 is connected to elbow 12, and the first straight tube 11 connected on other each insertion tubes 3 is all connected with far from one end of insertion tube 3
The second straight tube 13 concatenation is passed sequentially through between three-way connection 14, elbow 12, each three-way connection 14 and vacuum pump 2, thus shape
At stratum dewatering construction device, can be drawn water simultaneously by vacuum pump 2 to 5 many places of stratum, thus increase 5 precipitation of stratum effect
Rate can extend especially during tunneling with tunnel excavation face, the interval setting insertion tube 3 in tunnel rock, then
It is drawn water simultaneously by vacuum pump 2, to increase tunnel rock precipitation efficiency.
Using in the construction method of above-mentioned stratum dewatering construction device the following steps are included:
Step 1: setting-out goes out dewatering well center before constructing.
Step 2: on stratum, 5 drilling construction forms dewatering well, wherein drilling construction preparation first first pinpoints, drilling machine is just
Position guarantees that drilling machine is vertical, steady, securely, and then drilling machine is in place and pore-forming, by assembled good drilling machine it is in place after, adjust rack, make
Bit central is directed at dewatering well center, and drill bit uses 50mm water drilling, merogenesis casing drilling when drilling, total drilling depth 2m, hole depth
After getting into position, reversed bore extracts casing, and flour sand is taken out of together.
Step 3: carrying out dressing outside strainer 4 in insertion tube 3, then, there is the insertion tube 3 of strainer 4 to protrude into dewatering well wrapping
Interior, it is the steel pipe of 50mm seamless steel pipe, wall thickness 3.0mmm that insertion tube 3, which selects diameter, and the outside of insertion tube 3 is tight using 80 mesh filter screens
Close wrapping.
Step 4: insertion tube 3 being inserted into one end of the first straight tube 11, then using leak stopping king 8 to the outer wall gap of insertion tube 3
It carries out adding stifled and the first straight tube 11 and the junction of insertion tube 3 is blocked, form enclosed environment.
Step 5: adapter tube is spliced the first straight tube 11, the second straight tube 13 using elbow 12 and/or three-way connection 14,
Longitudinal pitch 3m, the double spacing 3m of lateral arrangement.
Step 6: dewatering construction is installed vacuum pump 2 on the second straight tube 13 far from elbow 12, and is connected on vacuum pump 2
Drainpipe 7 is connected, plugs in and try drawing water, examination carries out commencement of commercial operation after drawing water.In first time, examination is drawn water, and observes liquid-ring type
Can vacuum pump 2 operate normally.When normal pumping, switch-box is separately provided in vacuum pump 2, passes through pump drainage sky under vacuum conditions
Gas, reaches effect of drawing water, and 2 air inlet of vacuum pump and water inlet share, discharge outlet by water pump drainage to sump 6 or foundation pit, to
After water precipitates in sump 6 or foundation pit, using immersible pump pump drainage to outside it.
This method is suitable for shallow-depth-excavation tunnel under coastal thin silt, rich artesian water complex geological condition.This method
5 moisture content of stratum can be effectively reduced, substantially meet earth excavation needs by excavating situation judgement.Soil is compared after marching into the arena simultaneously
Sample moisture content detects, and fine sand layer natural moisture content is about 50% or so in stratum 5, and after vacuum-dewatering, powder is thin in stratum 5
Layer of sand moisture content is reduced to 20% or so.
Although the utility model is disclosed as above with preferred embodiment, it is not intended to limit the utility model.It is any
Those skilled in the art, in the case where not departing from technical solutions of the utility model range, all using the disclosure above
Technology contents many possible changes and modifications are made to technical solutions of the utility model, or be revised as the equivalent of equivalent variations
Embodiment.Therefore, all contents without departing from technical solutions of the utility model, according to the utility model technical spirit to the above reality
Any simple modifications, equivalents, and modifications that example is done are applied, should all be fallen in the range of technical solutions of the utility model protection.
Claims (7)
1. a kind of stratum dewatering construction device, it is characterised in that: including aqueduct (1), vacuum pump (2) and insert into stratum (5)
Insertion tube (3), the tube wall of the insertion tube (3) are equipped with the limbers being interlinked to the outside in multiple, and the vacuum pump (2) passes through described
Aqueduct (1) closing is connected to the insertion tube (3), and the outer wall wrapping of the insertion tube (3) has for stopping powder in stratum (5)
The strainer (4) that fine sand side passes through.
2. dewatering construction device in stratum according to claim 1, it is characterised in that: the aqueduct (1) includes first straight
Pipe (11), elbow (12) and the second straight tube (13), the closed at one end of first straight tube (11) are connected to the insertion tube (3),
Its other end is connected to one end of the elbow (12), and the vacuum pump (2) passes through second straight tube (13) and the elbow
(12) other end connection.
3. dewatering construction device in stratum according to claim 1, it is characterised in that: the quantity of the insertion tube (3) is set as
At least two, the aqueduct (1) includes the first straight tube (11), elbow (12), the second straight tube (13) and three-way connection (14), institute
It states elbow (12), each three-way connection (14), pass sequentially through the second straight tube (13) connection, the elbow between vacuum pump (2)
(12) it is connected to respectively by first straight tube (11) with corresponding insertion tube (3) with each three-way connection (14).
4. dewatering construction device in stratum according to any one of claim 1 to 3, it is characterised in that: further include sump
(6), the vacuum pump (2) is connected with drainpipe (7), and the drainpipe (7) protrudes into the sump (6).
5. dewatering construction device in stratum according to any one of claim 1 to 3, it is characterised in that: the strainer (4) is adopted
With 80 mesh Dense mesh screens.
6. dewatering construction device in stratum according to any one of claim 1 to 3, it is characterised in that: the aqueduct (1)
It is blocked with the junction of the insertion tube (3) by leak stopping king (8).
7. dewatering construction device in stratum according to any one of claim 1 to 3, it is characterised in that: the aqueduct (1)
It is arranged to steel-tube construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821931560.9U CN209227570U (en) | 2018-11-22 | 2018-11-22 | Stratum dewatering construction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821931560.9U CN209227570U (en) | 2018-11-22 | 2018-11-22 | Stratum dewatering construction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209227570U true CN209227570U (en) | 2019-08-09 |
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ID=67504000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821931560.9U Active CN209227570U (en) | 2018-11-22 | 2018-11-22 | Stratum dewatering construction device |
Country Status (1)
| Country | Link |
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| CN (1) | CN209227570U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985120A (en) * | 2019-12-31 | 2020-04-10 | 中铁十六局集团北京轨道交通工程建设有限公司 | Precipitation construction method and system for tunnel connection channel of fractured clay layer |
-
2018
- 2018-11-22 CN CN201821931560.9U patent/CN209227570U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985120A (en) * | 2019-12-31 | 2020-04-10 | 中铁十六局集团北京轨道交通工程建设有限公司 | Precipitation construction method and system for tunnel connection channel of fractured clay layer |
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