CN207597408U - A kind of deep foundation pit precipitation well shut-in well system - Google Patents
A kind of deep foundation pit precipitation well shut-in well system Download PDFInfo
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- CN207597408U CN207597408U CN201721615410.2U CN201721615410U CN207597408U CN 207597408 U CN207597408 U CN 207597408U CN 201721615410 U CN201721615410 U CN 201721615410U CN 207597408 U CN207597408 U CN 207597408U
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- China
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- well
- plugging plate
- foundation pit
- deep foundation
- bolt hole
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Abstract
A kind of deep foundation pit precipitation well shut-in well system, it is related to deep foundation pit construction field, including dewatering well, the first plugging plate for being fixedly connected on the circular ring shape of well head lower position in the dewatering well, the second plugging plate being detachably connected on first plugging plate, the gasket being folded between first plugging plate and the second plugging plate, vertical through the drain water circuit being connected in the middle part of second plugging plate and gas exhaust piping and is connected to drain water circuit self priming pump suitable for reading.The utility model solve existing deep foundation pit precipitation well block mode can not it is big effectively to stratum osmotic coefficient, supply is fast, the dewatering well in high water level area blocks, it solves the problem of that existing method for blocking cannot meet structural anti-buoyancy requirement and lead to occur underground water simultaneously to dash forward the phenomenon that gushing.
Description
Technical field
The utility model is related to deep foundation pit construction field, particularly a kind of deep foundation pit precipitation well shut-in well system.
Background technology
Along with the development in city, base pit engineering field is more and more universal, and deep foundation pit construction becomes normalization is presented
Gesture solves the problem of that the plugging constructions such as regional level of ground water is high, suddenly gushes become modern dewatering project and must take into consideration.It is common
Shut-in well measure：Before shut-in well, immersible pump is put forward, carries out concreting immediately, concreting is treated to well head, in well head
Setting flange is attached closures using bolt, the way of such shut-in well be not suitable for stratum osmotic coefficient is big, supply soon, Gao Shui
The soil layer of position.Stratum osmotic coefficient is big, supply is fast, high water level area, and underground water is gushed out and leads to routine within a very short time
Method for blocking fails.In structure construction procedure, existing method for blocking cannot meet structural anti-buoyancy requirement, it is possible that underground
Water is dashed forward the phenomenon that gushing.
Utility model content
The purpose of this utility model is to provide a kind of deep foundation pit precipitation well shut-in well system, to solve existing deep foundation pit precipitation well
Closure mode can not it is big effectively to stratum osmotic coefficient, supply is fast, the dewatering well in high water level area blocks, solve simultaneously
Existing method for blocking cannot meet structural anti-buoyancy requirement, cause to occur underground water dash forward the phenomenon that gushing the problem of.
To achieve the above object, the utility model adopts the following technical solution：A kind of deep foundation pit precipitation well shut-in well system, packet
It includes dewatering well, the first plugging plate for being fixedly connected on the circular ring shape of well head lower position in the dewatering well, be detachably connected on
It is the second plugging plate on first plugging plate, the gasket being folded between first plugging plate and the second plugging plate, vertical
Through the drain water circuit and gas exhaust piping that are connected in the middle part of second plugging plate and be connected to the drain water circuit it is suitable for reading from
Sucking pump.
Preferably, it is circumferentially evenly-spaced on first plugging plate to have first bolt hole of circle, outer annular diameter with
The pit shaft internal diameter of the dewatering well is adapted, and the shaft in wall of its alien invasion and the dewatering well is welded to connect.
Preferably, the diameter of second plugging plate is more than the annular diameters of first plugging plate, less than described first
The outer annular diameter of plugging plate, and correspond to first bolt hole thereon and open up position and be provided with a circle and the first bolt hole aperture
The second identical bolt hole.
Preferably, by running through first bolt hole and the second bolt between first plugging plate and the second plugging plate
The bolt in hole is fastenedly connected.
Preferably, the center of second plugging plate is provided with the drain hole that the drain water circuit passes through, the drain hole
The outer diameter of aperture and the drain water circuit is adapted and the two is welded to connect.
Preferably, the gas vent that the gas exhaust piping passes through, institute are provided between the drain hole and second bolt hole
It states the aperture of gas vent and the outer diameter of the gas exhaust piping is adapted and the two is welded to connect.
Preferably, the aperture of the drain hole is more than the aperture of the gas vent.
Preferably, the gasket is rubber sheet gasket, is located at first bolt hole and the second bolt hole corresponding position.
Preferably, the thickness of the gasket is more than first bolt hole for the double-width of the dewatering well thickness of shaft wall
With the second bolt hole and aperture.
Preferably, the drain water circuit is equipped with emptying valve.
Preferably, the gas exhaust piping is equipped with drain tap.
Preferably, first plugging plate and the second plugging plate material are identical, are steel plate.
Preferably, the well head of the dewatering well is concordant with the backplate surface of deep basal pit.
The utility model has the characteristics that and advantageous effect compared with prior art：
The deep foundation pit precipitation well shut-in well system of the utility model can be when that can stop precipitation, still after the completion of bottom slab concreting
It can realize and continue lowering of watertable, ensure that structure construction is unaffected, and while capping operation is carried out to dewatering well, it can
To carry out the welding of plugging plate in dewatering well in precipitation, after plugging plate installs, emptying valve is closed, removes and sluices
Discharge pipe line other than pipeline, you can the waterproof construction of next step is taken to handle immediately, does not delay and constructs in next step, accelerate construction
Efficiency, plugging effect is good, and effectively overcoming causes due to stratum osmotic coefficient is big, the fast underground water of supply is gushed out within a very short time
The problem of blocking failure.
The utility model blocks dewatering well using two pieces of plugging plates, wherein the first plugging plate in advance in dewatering well
Wall welding is completed, and the second plugging plate is directly bolted by when shut-in well with the first plugging plate, is avoided site welding, is accelerated shut-in well
Speed improves shut-in well efficiency, while sets rubber sheet gasket between the first plugging plate and the second plugging plate, increases the first closure
Leakproofness between plate and the second plugging plate, improves plugging effect.
The utility model can be widely applied in deep foundation pit precipitation well plugging system.
Description of the drawings
The utility model is described in more detail below in conjunction with the accompanying drawings.
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the planar structure schematic diagram of the first plugging plate.
Fig. 3 is the planar structure schematic diagram of the second plugging plate.
Reference numeral：1-dewatering well, the 2-the first plugging plate, the 3-the second plugging plate, 4-drain water circuit, 5-exhaust pipe
Road, the 6-the first bolt hole, the 7-the second bolt hole, 8-bolt, 9-gasket, 10-drain hole, 11-gas vent, 12-sluicing
Valve, 13-drain tap, 14-backplate surface, 15-self priming pump.
Specific embodiment
Embodiment is shown in Figure 1, and a kind of deep foundation pit precipitation well is shunt in a well system, including dewatering well 1, be fixedly connected on it is described
First plugging plate 2 of the circular ring shape of well head lower position in dewatering well 1, be detachably connected on first plugging plate 2
It is two plugging plates 3, the gasket 9 being folded between 2 and second plugging plate 3 of the first plugging plate, vertical through being connected to described the
The drain water circuit 4 and gas exhaust piping 5 at the middle part of two plugging plate 3 and it is connected to the drain water circuit 4 self priming pump 15 suitable for reading；Referring to figure
It is circumferentially evenly-spaced on first plugging plate 2 to have first bolt hole of circle 6, outer annular diameter and the precipitation shown in 2
The pit shaft internal diameter of well 1 is adapted, and the shaft in wall of its alien invasion and the dewatering well 1 is welded to connect；It is shown in Figure 3, institute
The diameter for stating the second plugging plate 3 is more than the annular diameters, straight less than the outer shroud of first plugging plate 2 of first plugging plate 2
Diameter, and correspond to first bolt hole 6 thereon and open up position and be provided with a circle second spiral shell identical with 6 aperture of the first bolt hole
Keyhole 7；By running through 6 and second bolt hole 7 of the first bolt hole between first plugging plate, 2 and second plugging plate 3
Bolt 8 is fastenedly connected；The center of second plugging plate 3 is provided with the drain hole 10 that the drain water circuit 4 passes through, the drain hole
The outer diameter of 10 aperture and the drain water circuit 4 is adapted and the two is welded to connect；The drain hole 10 and second bolt
It is provided with the gas vent 11 that the gas exhaust piping 5 passes through between hole 7, the aperture of the gas vent 11 is outer with the gas exhaust piping 5
Diameter is adapted and the two is welded to connect；The aperture of the drain hole 10 is more than the aperture of the gas vent 11；The gasket 9 is
Rubber sheet gasket is located at 6 and second bolt hole of the first bolt hole, 7 corresponding position；The thickness of the gasket 9 is the dewatering well
Twice of 1 thickness of shaft wall, width are more than 6 and second bolt hole 7 of the first bolt hole and aperture；It is set on the drain water circuit 4
There is emptying valve 12；The gas exhaust piping 5 is equipped with drain tap 13；First plugging plate, 2 and second plugging plate, the 3 material phase
Together, it is steel plate；The well head of the dewatering well 1 is concordant with the backplate surface 14 of deep basal pit.
The course of work of the utility model：Before precipitation, the first plugging plate and dewatering well inner wall are welded in advance, pushed up AT STATION
After the completion of plate more than backfill or when bottom slab concreting completion can stop precipitation, the second plugging plate is passed through into drain water circuit and exhaust
Pipeline, sets rubber sheet gasket at the link position between the first plugging plate and the second plugging plate, and by the first plugging plate and second
Plugging plate is bolted together, and dewatering well is quickly and effectively blocked, and blocks tapping pipe simultaneously and continues through self-priming
Pump carries out precipitation, closes emptying valve after the completion of blocking, carries out next step waterproof construction.
Claims (10)
- The system 1. a kind of deep foundation pit precipitation well is shunt in a well, it is characterised in that：Including dewatering well（1）, be fixedly connected on the dewatering well （1）First plugging plate of the circular ring shape of interior well head lower position（2）, be detachably connected on first plugging plate（2）On Two plugging plates（3）, be folded in first plugging plate（2）With the second plugging plate（3）Between gasket（9）, it is vertical through connection In second plugging plate（3）The drain water circuit at middle part（4）And gas exhaust piping（5）And it is connected to the drain water circuit（4）It is suitable for reading Self priming pump（15）；First plugging plate（2）On circumferentially evenly-spaced have first bolt hole of circle（6）, outer annular diameter and the drop Well（1）Pit shaft internal diameter be adapted, and its alien invasion and the dewatering well（1）Shaft in wall be welded to connect；Second plugging plate（3）Diameter be more than first plugging plate（2）Annular diameters, less than first plugging plate （2）Outer annular diameter, and correspond to first bolt hole thereon（6）It opens up position and is provided with a circle and first bolt hole（6） The second identical bolt hole of aperture（7）；First plugging plate（2）With the second plugging plate（3）Between by running through first bolt hole（6）With the second bolt hole （7）Bolt（8）It is fastenedly connected.
- 2. a kind of deep foundation pit precipitation well shut-in well system according to claim 1, it is characterised in that：Second plugging plate （3）Center be provided with the drain water circuit（4）The drain hole passed through（10）, the drain hole（10）Aperture and the tapping pipe Road（4）Outer diameter be adapted and the two is welded to connect.
- 3. a kind of deep foundation pit precipitation well shut-in well system according to claim 2, it is characterised in that：The drain hole（10）With Second bolt hole（7）Between be provided with the gas exhaust piping（5）The gas vent passed through（11）, the gas vent（11）Aperture With the gas exhaust piping（5）Outer diameter be adapted and the two is welded to connect.
- 4. a kind of deep foundation pit precipitation well shut-in well system according to claim 3, it is characterised in that：The drain hole（10）'s Aperture is more than the gas vent（11）Aperture.
- 5. a kind of deep foundation pit precipitation well shut-in well system according to any one of claims 1-4, it is characterised in that：The pad Piece（9）For rubber sheet gasket, it is located at first bolt hole（6）With the second bolt hole（7）Corresponding position.
- 6. a kind of deep foundation pit precipitation well shut-in well system according to claim 5, it is characterised in that：The gasket（9）Thickness It spends for the dewatering well（1）Twice of thickness of shaft wall, width are more than first bolt hole（6）With the second bolt hole（7）And hole Diameter.
- 7. a kind of deep foundation pit precipitation well shut-in well system according to any one of claims 1-4, it is characterised in that：It is described to let out Water lines（4）It is equipped with emptying valve（12）.
- 8. a kind of deep foundation pit precipitation well shut-in well system according to any one of claims 1-4, it is characterised in that：The row Air pipe（5）It is equipped with drain tap（13）.
- 9. a kind of deep foundation pit precipitation well shut-in well system according to any one of claims 1-4, it is characterised in that：Described One plugging plate（2）With the second plugging plate（3）Material is identical, is steel plate.
- 10. a kind of deep foundation pit precipitation well shut-in well system according to claim 1, it is characterised in that：The dewatering well（1）'s The backplate surface of well head and deep basal pit（14）Concordantly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721615410.2U CN207597408U (en) | 2017-11-28 | 2017-11-28 | A kind of deep foundation pit precipitation well shut-in well system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721615410.2U CN207597408U (en) | 2017-11-28 | 2017-11-28 | A kind of deep foundation pit precipitation well shut-in well system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207597408U true CN207597408U (en) | 2018-07-10 |
Family
ID=62761319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721615410.2U Expired - Fee Related CN207597408U (en) | 2017-11-28 | 2017-11-28 | A kind of deep foundation pit precipitation well shut-in well system |
Country Status (1)
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|---|---|
| CN (1) | CN207597408U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258603A (en) * | 2019-06-18 | 2019-09-20 | 李贺清 | The stealthy precipitation engineering method of local ultra-deep foundation pit in deep basal pit |
| CN111254961A (en) * | 2020-02-21 | 2020-06-09 | 云南建投第六建设有限公司 | Closed construction method for foundation pit relief well |
| CN113322994A (en) * | 2021-06-09 | 2021-08-31 | 中国建筑第八工程局有限公司 | Plugging device for dewatering well system and construction method |
| CN114703878A (en) * | 2022-05-07 | 2022-07-05 | 中建八局第二建设有限公司 | Plugging and draining device for dewatering well and construction method |
-
2017
- 2017-11-28 CN CN201721615410.2U patent/CN207597408U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258603A (en) * | 2019-06-18 | 2019-09-20 | 李贺清 | The stealthy precipitation engineering method of local ultra-deep foundation pit in deep basal pit |
| CN111254961A (en) * | 2020-02-21 | 2020-06-09 | 云南建投第六建设有限公司 | Closed construction method for foundation pit relief well |
| CN113322994A (en) * | 2021-06-09 | 2021-08-31 | 中国建筑第八工程局有限公司 | Plugging device for dewatering well system and construction method |
| CN114703878A (en) * | 2022-05-07 | 2022-07-05 | 中建八局第二建设有限公司 | Plugging and draining device for dewatering well and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180710 Termination date: 20181128 |