CN206346209U - A kind of quick solution dewatering well piping plugging structure - Google Patents
A kind of quick solution dewatering well piping plugging structure Download PDFInfo
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- CN206346209U CN206346209U CN201621347332.8U CN201621347332U CN206346209U CN 206346209 U CN206346209 U CN 206346209U CN 201621347332 U CN201621347332 U CN 201621347332U CN 206346209 U CN206346209 U CN 206346209U
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- water
- dewatering well
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- water pipe
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Abstract
A kind of quick solution dewatering well piping plugging structure, at least including drinking-water pipe group and sealing steel sleeve, in drinking-water pipe group insertion dewatering well, sealing steel sleeve is arranged on downcast well pipe top；The drinking-water pipe group includes filter screen, the supervisor that draws water, ball valve, flange, connection short tube, connection flexible pipe and fixed support, filter screen is arranged on supervisor lower end of drawing water, flange and ball valve are arranged on supervisor upper end of drawing water, one end of connection short tube is connected to above ball valve, the other end of short tube is connected with being connected flexible pipe connection, connection flexible pipe is connected with the vavuum pump outside dewatering well, fixed support is fixedly installed on connection short tube, for drinking-water pipe group to be fixedly mounted on into structure base slab when whole drinking-water pipe group is stretched into dewatering well；Flange and ball valve upper flange face drop to structure base slab 200~500mm of lower surface positions.The utility model does not influence first to block the pipe well on drinking-water pipe group periphery；Effectively block the piping problem of underground bearing water.
Description
Technical field
The utility model belongs to deep basal pit large diameter tube well plugging construction field, and in particular to a kind of quick solution dewatering well
Piping plugging structure.
Background technology
Large diameter tube well is generally carried out before deep foundation pit construction and carries out precipitation, excavation of foundation pit is then carried out, in building master
After body structure construction is finished, dewatering well is blocked one by one, but in actual mechanical process, due to subsurface geology situation
Occurs artesian water in the increasing of reduction and the building structure deadweight of complicated and dewatering well quantity, part pipe well, artesian water is from pipe well
Inside gush, before pipe well is not blocked, generally realize dewatering operation using the power of suction pump is increased, but pipe well enters
During row closure, the filler of input pipe well can not effectively be blocked pipe well, even if being blocked using concrete,
Because the solidification of concrete has certain cycle, underground water is gushed out by pressure out of concrete, by concrete disintegration, it is impossible to real
The closure of existing pipe well.
CN201410212613.1 patent discloses a kind of big drawdown pipe well plugging structure and its construction method, using steel
Sleeve pipe peripheral hardware seal ring, inside sets seal plate with screw thread and solves plugging dewatering well, but the interior seal plate with screw thread set, in advance
Welding can not carry out the backfill of dewatering well filler, if backfilled welding, can not weld job when there is Piping phenomenon band water.
CN201320470863.6 patent discloses a kind of sleeve pipe for implementing closure to post-cast strip precipitation pipe well, makes set
Pipe is carried out in two steps the plugging dewatering well of post-cast strip region to post-cast strip dewatering well, but to the larger pipe well of water yield, current
Easily concrete is isolated.
CN201410395472.1 patent application document discloses one kind by decompression drainage quick blocking precipitation pipe well
Device and method thereof, using on plugging plate plus two short tubes, a progress filler, one carries out precipitation and effectively fills out filler
Fill, shorten the plugging dewatering well time.But to the larger pipe well of water yield, current are easily isolated to concrete.
The content of the invention
The technical problems to be solved in the utility model is that there is provided one for the above mentioned problem existed for existing plugging dewatering well
Quick solution dewatering well piping plugging structure is planted, while downcast well pipe closure is carried out, does not stop precipitation work, does not influence elder generation
The pipe well on drinking-water pipe group periphery is blocked；Effectively block the piping problem of underground bearing water.
The utility model is to solve the technical scheme that is used of above-mentioned technical problem：
A kind of quick solution dewatering well piping plugging structure, at least including drinking-water pipe group and sealing steel sleeve, drinking-water pipe group
Insert in dewatering well, sealing steel sleeve is arranged on downcast well pipe top, and fit structure construction of bottom plates, sealing steel sleeve is highly slightly higher
In structure base slab, water-stopping steel sleeve outer wall band seal ring；The main body of the drinking-water pipe group is caliber DN40~DN80 seamless steel
Pipe, including filter screen, the supervisor that draws water, ball valve, flange, connection short tube, connection flexible pipe and fixed support, filter screen are arranged on the supervisor that draws water
Lower end, flange and ball valve (valve DN40~DN80, nominal pressure PN1.0Mpa) are arranged on supervisor upper end of drawing water, connection short tube
One end is connected to above ball valve, connects the other end of short tube with being connected flexible pipe connection, connection flexible pipe and the vavuum pump outside dewatering well
Connection, fixed support be fixedly installed on connection short tube on, for when whole drinking-water pipe group is stretched into dewatering well by drinking-water pipe group
It is fixedly mounted on structure base slab；Flange and ball valve upper flange face drop to structure base slab 200~500mm of lower surface positions
(or according to structure base slab thickness, making the upper flange identity distance structure base slab upper surface 300mm of ball valve).
By such scheme, the long 4~6m of the supervisor that draws water.
By such scheme, 1~2m of the connection stub length, caliber and material are identical with supervisor's material of drawing water,
By such scheme, the level that the plugging structure also includes being filled in dewatering well filter pipe is matched somebody with somebody hardcore and is filled in
Level fills high to dewatering well filter pipe about 1m with the slightly expanded concrete layer above hardcore, level with hardcore, and drinking-water pipe group is stretched
After entering in dewatering well and fixing, slightly expanded concrete layer filling to the lower surface flange position of ball valve.
By such scheme, steel sleeve and filter pipe waterproof are provided between the sealing steel sleeve and dewatering well filter pipe
Layer.
Operation principle of the present utility model：Need to seal deep basal pit large diameter tube well when finishing when building structure
It is stifled, when indivedual pipe wells can not be carried out with conventional closure due to there is Piping phenomenon, according to the actual flow for gushing out water in job site
And pressure, drawn water using first passing through in sealing steel sleeve insertion dewatering well, while setting one inside dewatering well with valve
Drinking-water pipe group, is increased to the power that draws water of drinking-water pipe, then with filling sandstone inside pipe well outside the drinking-water pipe group, and top is with micro-
Expansive concrete layer is blocked, using filler and concrete that the space filling between drinking-water pipe and pipe well is closely knit；Wait to mix
Stop precipitation after solidifying soil solidification, close drinking-water pipe group valve, the position of valve top part is then subjected to casting concrete again, so that
The closure problem of large diameter tube well can be quickly realized, is solved to because there is the difficulty that the dewatering well of piping can not be blocked
Topic.
Compared with prior art, the beneficial effects of the utility model are：
1st, while pipe well closure is carried out, the water gushed out in precipitation work, dewatering well is not stopped by having installed ball additional
The drinking-water pipe group of valve is taken away, does not influence first to block the pipe well on drinking-water pipe periphery；
2nd, using the drinking-water pipe group for having installed ball valve additional, the coagulation that can be filled in drinking-water pipe group outer wall and dewatering well tube wall
After soil solidification, the piping problem of underground bearing water is blocked by closing ball valve；
3rd, layering, which is filled, has saved cost, adds valve blind plate in the upper surface flange of ball valve, waterproof is provided
Duplicate protection, drinking-water pipe group top installs connection flexible pipe additional and effectively reduces vibration, it is ensured that draw water operation when do not influence to taking out
It is closure operation on the outside of water pipe group, drinking-water pipe group materials, easy to make, it is simple to operate, meet execute-in-place requirement.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model drinking-water pipe group；
Fig. 2 is the implementation structural representation of the utility model overall work；
Fig. 3 is to finish rear drinking-water pipe group remainder structure with waterproof closure on the inside of sealing steel sleeve on the outside of drinking-water pipe group to show
It is intended to；
In figure, 1, dewatering well filter pipe, 2, level match somebody with somebody hardcore, 3, drinking-water pipe group, 31, filter screen, 32, drinking-water pipe, 33, ball
Valve, 34, flange, 35, fixed support, 36, connection short tube, 37, connection flexible pipe, 4, steel sleeve and filter pipe waterproof layer, 5, micro- swollen
Swollen concrete layer, 6, micro-expansion cement layer, 7, structure base slab, 8, bed course, 9, waterproof layer, 10, sealing steel sleeve, 11, valve it is blind
Plate.
Embodiment
Technical solutions of the utility model are described in detail with example below in conjunction with the accompanying drawings.
Shown in 1~Fig. 2 of reference picture, the quick solution dewatering well piping plugging structure described in the utility model embodiment, extremely
Include less in drinking-water pipe group 3 and sealing steel sleeve 10, the insertion dewatering well of drinking-water pipe group 3, sealing steel sleeve 10 is arranged on dewatering well
Pipe top, fit structure bottom plate 7 is constructed, and sealing steel sleeve 10 is highly slightly above structure base slab 7, and the outer wall belt of sealing steel sleeve 10 stops
Water ring；The main body of drinking-water pipe group 3 be caliber DN40~DN80 seamless steel pipe, including filter screen 31, the supervisor 32 that draws water, ball valve 33,
Flange 34, connection short tube 36, connection flexible pipe 37 and fixed support 35, filter screen 31 are arranged on draw water 32 lower ends of supervisor, the He of flange 34
Ball valve 33 (valve DN40~DN80, nominal pressure PN1.0Mpa) is arranged on 32 upper ends of supervisor of drawing water, and connects one end of short tube 36
Be connected to the top of ball valve 33, the other end of connection short tube 36 is connected with being connected flexible pipe 37, connect flexible pipe 37 with it is true outside dewatering well
Empty pump connection, fixed support 35 is fixedly installed on connection short tube 36, for being incited somebody to action when whole drinking-water pipe group 3 is stretched into dewatering well
Drinking-water pipe group 3 is fixedly mounted on structure base slab 7；Flange 34 and the upper flange face of ball valve 33 drop to the lower surface of structure base slab 7
200~500mm positions (or according to the thickness of structure base slab 7, make the upper surface of upper flange identity distance structure base slab 7 of ball valve 33
300mm)。
The supervisor 32 that draws water grows 4~6m.
1~the 2m of length of short tube 36 is connected, caliber and material are identical with 32 materials of supervisor of drawing water,
The level that plugging structure also includes being filled in dewatering well filter pipe 1 matches somebody with somebody hardcore 2 and is filled in level with hardcore 2
The slightly expanded concrete layer 5 of top, level fills high to the about 1m of dewatering well filter pipe 1 with hardcore 2, and drinking-water pipe group 3 stretches into precipitation
In well and after fixing, the filling of slightly expanded concrete layer 5 to the lower surface flange position of ball valve 33.
Steel sleeve and filter pipe waterproof layer 4 are provided between sealing steel sleeve 10 and dewatering well filter pipe 1.
The utility model is constructed, and is comprised the following steps that：
1) when carrying out plugging dewatering well operation, when needing to stop dewatering operation, by being filled out in sealing steel sleeve 10
Fill level and carry out conventional closure with stone, waterproof mortar etc., occurring Piping phenomenon to discovery in pipe well closure operation is carried out can not
The pipe well of conventional closure is carried out, it is necessary first to by calculating the water yield size of this pipe well, it is determined that the internal diameter of suitable drinking-water pipe group 3
And vacuum pump power；
2) carried out making drinking-water pipe group 3 according to the schematic diagram of drinking-water pipe group 3, when making drinking-water pipe group 3, do not stopped in dewatering well
Only precipitation, can continue precipitation using immersible pump, after drinking-water pipe group 3 completes, immersible pump is removed, will be by seamless steel pipe system
In the drinking-water pipe insertion dewatering well of work, drinking-water pipe group is installed after fixing, vavuum pump connection suction hose 37 is drawn water；
3) when unlatching vavuum pump is drawn water, the water level of dewatering well is observed, treats that the water level of dewatering well keeps downward trend
In the case of, the first step for being filled closure dewatering well by the gap between drinking-water pipe group 3 and steel sleeve 10 works, filling level
It is high to the about 1m of dewatering well filter pipe 1 with hardcore 2, slightly expanded concrete layer 5 is up filled from dewatering well filter pipe 1m to ball
The lower surface flange position of valve 33, vibrated concrete makes slightly expanded concrete layer 5 closely knit, now the not shadow of slightly expanded concrete layer 5
The unlatching of the later handle of ball valve 33 is rung, proceeds dewatering operation, by steel sleeve and filter pipe waterproof layer 4 and is arranged at
The water in the guarantee dewatering well of waterproof layer 9 filter pipe 1 between structure base slab 7 and bed course 8 is not outside the sealing steel sleeve 10 of insertion
Side is oozed out, the sealing situation in the outside of observation drinking-water pipe group 3, and after after 48 hours, slightly expanded concrete layer 5 solidifies and drinking-water pipe group 3
Outside is anhydrous to be oozed out, and represents that the waterproof closure in the outside of drinking-water pipe group 3 and the inner side of sealing steel sleeve 10 is finished；
4) as shown in figure 3, after the waterproof closure of the outside of drinking-water pipe group 3 and the inner side of sealing steel sleeve 10 is finished, stopping true
Empty pumping water, is then shut off ball valve 33, removes the connection short tube 36 and fixed support 35 on the top of ball valve 33, observes the valve of ball valve 33
Whether leak, after the valve of ball valve 33 is water-tight, install one block of valve blind plate 11 additional again on the top of ball valve 33, valve blind plate 11 is installed
It is close from the lower surface of ball valve 33 to the pipe well space filling between the upper surface of structure base slab 7 using 6 pairs of micro-expansion cement layer after good
It is real.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted,
And all these modifications and variations should all belong to the protection domain of the utility model appended claims.
Claims (5)
1. a kind of quick solution dewatering well piping plugging structure, it is characterised in that：At least include drinking-water pipe group and sealing steel sleeve,
In drinking-water pipe group insertion dewatering well, sealing steel sleeve is arranged on downcast well pipe top, fit structure construction of bottom plates, sealing steel sleeve
Highly it is slightly above structure base slab, water-stopping steel sleeve outer wall band seal ring；The main body of the drinking-water pipe group is caliber DN40~DN80
Seamless steel pipe, including filter screen, the supervisor that draws water, ball valve, flange, connection short tube, connection flexible pipe and fixed support, filter screen is arranged on
Draw water and be responsible for lower end, flange and ball valve are arranged on supervisor upper end of drawing water, and one end of connection short tube is connected to above ball valve, and connection is short
The other end of pipe is connected with being connected flexible pipe connection, connection flexible pipe with the vavuum pump outside dewatering well, and fixed support is fixedly installed on company
Connect on short tube, for drinking-water pipe group to be fixedly mounted on into structure base slab when whole drinking-water pipe group is stretched into dewatering well；Flange
Structure base slab 200~500mm of lower surface positions are dropped to ball valve upper flange face.
2. quick solution dewatering well piping plugging structure according to claim 1, it is characterised in that：Supervisor's length of drawing water
4~6m.
3. quick solution dewatering well piping plugging structure according to claim 1, it is characterised in that：The connection short tube is long
1~2m is spent, caliber and material are identical with supervisor's material of drawing water.
4. quick solution dewatering well piping plugging structure according to claim 1, it is characterised in that：The plugging structure is also wrapped
The level being filled in dewatering well filter pipe is included with hardcore and level is filled in the slightly expanded concrete layer above hardcore, level
Fill high to dewatering well filter pipe about 1m with hardcore, after drinking-water pipe group is stretched into dewatering well and fixed, slightly expanded concrete layer
Fill to the lower surface flange position of ball valve.
5. quick solution dewatering well piping plugging structure according to claim 1, it is characterised in that：The sealing steel sleeve
Steel sleeve and filter pipe waterproof layer are provided between dewatering well filter pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621347332.8U CN206346209U (en) | 2016-12-09 | 2016-12-09 | A kind of quick solution dewatering well piping plugging structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621347332.8U CN206346209U (en) | 2016-12-09 | 2016-12-09 | A kind of quick solution dewatering well piping plugging structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206346209U true CN206346209U (en) | 2017-07-21 |
Family
ID=59322767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621347332.8U Expired - Fee Related CN206346209U (en) | 2016-12-09 | 2016-12-09 | A kind of quick solution dewatering well piping plugging structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN206346209U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166517A (en) * | 2018-02-10 | 2018-06-15 | 中国建筑第五工程局有限公司 | For the shut-in well method and well-sealing device of superelevation floor height hydraulic pressure dewatering well of deep well |
| CN109577352A (en) * | 2019-01-24 | 2019-04-05 | 中国建筑第五工程局有限公司 | A kind of shotcrete basal plane infiltration drainage device and construction method |
| CN109869116A (en) * | 2019-03-07 | 2019-06-11 | 东北大学 | A kind of plugging dewatering well structure and its construction method |
| CN111501805A (en) * | 2020-04-15 | 2020-08-07 | 中国二十冶集团有限公司 | Foundation pit bottom plate reserved precipitation plugging device and application method thereof |
| CN111608171A (en) * | 2020-05-27 | 2020-09-01 | 中国一冶集团有限公司 | Sandbar underground soft base pipe, well precipitation anti-floating pipe pile structure and construction method |
| CN112411588A (en) * | 2020-11-10 | 2021-02-26 | 上海建工七建集团有限公司 | Water seepage prevention device for dewatering well and construction method |
| CN114482105A (en) * | 2022-03-18 | 2022-05-13 | 中铁一局集团有限公司 | Construction method for plugging dewatering well group with strong pressure water after ultra-deep subway station is sealed |
-
2016
- 2016-12-09 CN CN201621347332.8U patent/CN206346209U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166517A (en) * | 2018-02-10 | 2018-06-15 | 中国建筑第五工程局有限公司 | For the shut-in well method and well-sealing device of superelevation floor height hydraulic pressure dewatering well of deep well |
| CN108166517B (en) * | 2018-02-10 | 2023-10-27 | 中国建筑第五工程局有限公司 | Well sealing method and well sealing device for super high-rise high-water pressure deep well dewatering well |
| CN109577352A (en) * | 2019-01-24 | 2019-04-05 | 中国建筑第五工程局有限公司 | A kind of shotcrete basal plane infiltration drainage device and construction method |
| CN109869116A (en) * | 2019-03-07 | 2019-06-11 | 东北大学 | A kind of plugging dewatering well structure and its construction method |
| CN111501805A (en) * | 2020-04-15 | 2020-08-07 | 中国二十冶集团有限公司 | Foundation pit bottom plate reserved precipitation plugging device and application method thereof |
| CN111608171A (en) * | 2020-05-27 | 2020-09-01 | 中国一冶集团有限公司 | Sandbar underground soft base pipe, well precipitation anti-floating pipe pile structure and construction method |
| CN112411588A (en) * | 2020-11-10 | 2021-02-26 | 上海建工七建集团有限公司 | Water seepage prevention device for dewatering well and construction method |
| CN114482105A (en) * | 2022-03-18 | 2022-05-13 | 中铁一局集团有限公司 | Construction method for plugging dewatering well group with strong pressure water after ultra-deep subway station is sealed |
| CN114482105B (en) * | 2022-03-18 | 2024-04-16 | 中铁一局集团有限公司 | Precipitation well group plugging construction method with strong pressurized water after ultra-deep subway station is closed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170721 Termination date: 20211209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |