CN214883774U - Foundation pit dewatering and water stopping device - Google Patents
Foundation pit dewatering and water stopping device Download PDFInfo
- Publication number
- CN214883774U CN214883774U CN202120594127.6U CN202120594127U CN214883774U CN 214883774 U CN214883774 U CN 214883774U CN 202120594127 U CN202120594127 U CN 202120594127U CN 214883774 U CN214883774 U CN 214883774U
- Authority
- CN
- China
- Prior art keywords
- pipe
- water
- well point
- foundation pit
- jet flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to a precipitation stagnant water construction equipment field, concretely relates to foundation ditch precipitation stagnant water device, its characterized in that: including water tank, centrifugal pump, water main, well point pipe, row's sediment ware, return water house steward and pneumatic pump, water tank, centrifugal pump, water main, well point pipe, row's sediment ware, return water house steward and pneumatic pump establish ties into the return circuit in proper order, well point pipe includes outer tube, inner tube, geotechnological cloth filter, coarse filter, conical head. By arranging the well points and combining the pneumatic pump, the centrifugal pump and the jet flow injection nozzle, the water stopping effect is good, and the water pumping efficiency is greatly improved; the well point pipe is arranged with the outer pipe, the inner pipe and the jet flow injection nozzle concentrically, a submersible pump is not needed, the pipe diameter of the well point pipe is small, the well point excavation caliber is small, the high-speed jet flow formed by the jet flow injection nozzle forms low pressure near the nozzle, and the pumping pressure of the pneumatic pump is added, so the water collecting effect is good, and the precipitation depth is large.
Description
Technical Field
The utility model relates to a precipitation stagnant water construction equipment field, specificly relate to a foundation ditch precipitation stagnant water device.
Background
The waterproof curtain is a general term of a waterproof series at the periphery of the engineering main body and is used for preventing or reducing continuous water stopping bodies which are adopted by underground water flowing into the foundation pit from the side wall of the foundation pit and the bottom of the foundation pit. If the bottom surface of the foundation pit is below the underground water level and precipitation is difficult, a waterproof curtain is basically required to be arranged to prevent the seepage of underground water. The water-stop wall formed by continuous mixing piles (cement mixing piles, etc.) and single-pipe and three-pipe jet grouting piles is called a water-stop curtain. Common waterproof curtains include a high-pressure jet grouting pile, a deep mixing pile waterproof curtain, a jet grouting pile waterproof curtain, and a spiral drilling machine plain concrete or mud jacking waterproof curtain recently appears; underground building envelopes in the form of underground continuous walls, drilled secant piles and the like. The tube well point dewatering imitates the principle of a waterproof curtain, the deep well point dewatering technology is mainly adopted, an energy-saving and efficient method is selected according to the depth of a foundation pit to carry out foundation pit dewatering treatment, a closed and circulating dewatering system is formed in the whole dewatering construction process, and the requirement of dewatering is met when the speed of pumping water is higher than the speed of water penetration through continuous dewatering. The existing waterproof curtain and well point dewatering have the following defects: the construction cycle is long, and engineering cost is high, and economic benefits is low, and because filter inadequately to groundwater in the well point precipitation, cause the pipeline to block up easily and the suction pump damages, in addition, the immersible pump is arranged to traditional well point, and the water pump damages easily, and to the great well point of degree of depth, the ponding effect is not good, and the water yield is unstable.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a foundation ditch precipitation watertight fittings to solve the problem that provides in the background art.
In order to solve the technical problem, the utility model discloses a technical scheme as follows: the utility model provides a foundation ditch precipitation stagnant water device which characterized in that: comprises a water tank, a centrifugal pump, a water supply main pipe, a well point pipe, a slag discharging device, a water return main pipe and a pneumatic pump, the water tank, the centrifugal pump, the water supply main pipe, the well point pipe, the slag discharging device, the water return main pipe and the pneumatic pump are sequentially connected in series to form a loop, the well point pipe comprises an outer pipe, an inner pipe, a geotextile filter, a coarse filter and a conical head, wherein the outer pipe, the geotextile filter, the coarse filter and the conical head are sequentially arranged from top to bottom, the inner pipe is sleeved in the outer pipe, a jet flow spray nozzle is arranged at the joint of the outer pipe and the bottom of the inner pipe, the jet flow injection nozzle is communicated with a channel between the outer pipe and the inner pipe, a jet flow port is arranged on the jet flow injection nozzle, the jet flow port is upwards arranged and is opposite to the center of the inner pipe, the outer tube bottom is equipped with the drainage mouth, the strainer includes the colating outer tube and the inside colating inner tube of colating outer tube is located to the cover, be equipped with the filtration pore on colating outer tube and the colating inner tube.
Preferably, the strainer is detachably connected to the outer tube.
Preferably, the top of the outer coarse filtration pipe and the inner coarse filtration pipe is open, and the bottom of the outer coarse filtration pipe and the inner coarse filtration pipe are connected in a closed mode.
Preferably, the well point pipe still includes the annular plate, the coarse filter top is located to the annular plate lid, and the annular plate seals the open-top between coarse filtration outer tube and the coarse filtration inner tube, is equipped with the opening that corresponds with the coarse filtration inner tube in the middle of the annular plate.
Preferably, a plurality of layers of geotextiles are arranged in the geotextile filter.
Preferably, sand is filled in the inner coarse filtration pipe, and gravel is filled between the outer coarse filtration pipe and the inner coarse filtration pipe.
Preferably, the slag discharging device comprises a slag discharging device shell, a U-shaped pipe and an inclined baffle plate, the U-shaped pipe is located at the bottom of the slag discharging device shell, two ends of the U-shaped pipe are communicated with two ends of the slag discharging device shell, and the inclined baffle plate is arranged inside the slag discharging device shell.
Preferably, an inclined baffle is arranged at a position, close to the water inlet of the U-shaped pipe, inside the slag extractor shell.
Preferably, an inclined baffle is arranged inside the U-shaped pipe, the bottom of the U-shaped pipe is conical, a slag discharge port is arranged at the bottom of the U-shaped pipe, and an openable plug is arranged on the slag discharge port
Preferably, the water tank is provided with an overflow port.
According to the above description, the utility model provides a foundation ditch precipitation stagnant water device has following beneficial effect: by arranging the well points and combining the pneumatic pump, the centrifugal pump and the jet flow injection nozzle, the water stopping effect is good, and the water pumping efficiency is greatly improved; the well point pipe is provided with the outer pipe, the inner pipe and the jet flow injection nozzle in a concentric manner, a submersible pump is not needed, the pipe diameter of the well point pipe is small, the well point excavation caliber is small, high-speed jet flow formed by the jet flow injection nozzle forms low pressure near a nozzle, and the pumping pressure of a pneumatic pump is added, so that the water collecting effect is good, and the precipitation depth is large; the well point pipe is filtered through the multiple layers of gravel, sand and geotextile, and the sediment discharging device is used for further settling sediment, so that the pipeline blockage is reduced, and the service life of the water pump is effectively prolonged.
Drawings
Fig. 1 is the utility model discloses foundation ditch precipitation stagnant water device's schematic structure.
FIG. 2 is a schematic diagram of a well site tubular configuration.
Fig. 3 is a schematic structural view of the slag extractor.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
As shown in figure 1, the utility model discloses foundation pit dewatering sealing device, including water tank 1, centrifugal pump 2, water main 3, well point pipe 4, row's sediment ware 5, return water house steward 6 and pneumatic pump 7. The water tank 1, the centrifugal pump 2, the water supply header pipe 3, the well point pipe 4, the slag extractor 5, the water return header pipe 6 and the pneumatic pump 7 are sequentially connected in series to form a loop. The water tank 1 is provided with an overflow port 11. And valves for adjusting the water flow are arranged on the water inlet and outlet ports of the water supply header pipe 3, the water return header pipe 6 and the water tank 1.
As shown in fig. 2, the well point pipe 4 includes an outer pipe 41, an inner pipe 42, a geotextile filter 43, a coarse filter 44 and a conical head 45, the inner pipe 42 is sleeved inside the outer pipe 41 and coaxially arranged, the top of the well point pipe 4 is provided with two connectors respectively connected with the slag extractor 5 and the water supply main 3, the top of the inner pipe 42 is communicated with the slag extractor 5 through a pipeline, and the top of an annular channel between the inner pipe 42 and the outer pipe 41 is communicated with the water supply main 3 through a pipeline.
The outer pipe 41, the geotextile filter 43, the strainer 44 and the conical head 45 are sequentially arranged from top to bottom, a jet spray nozzle 46 is arranged at the connecting position of the bottoms of the outer pipe 41 and the inner pipe 42, the jet spray nozzle 46 is communicated with a channel between the outer pipe 41 and the inner pipe 42, a jet port is arranged on the jet spray nozzle 46, the jet port is upwards opened and is opposite to the center of the inner pipe 42, a drainage port 47 is arranged at the bottom of the outer pipe 41, the drainage port 47 surrounds the jet spray nozzle 46 and is communicated with the inner pipe 42, the strainer 44 comprises a strainer outer pipe 441 and a strainer inner pipe 442 sleeved inside the strainer outer pipe 441, and filter holes are formed in the strainer outer pipe 441 and the strainer inner pipe 442. The outer pipe 41, the inner pipe 42 and the jet flow injection nozzle 46 form a jet flow pump, and form a deep well jet flow pump device for water supply with the centrifugal pump 2, the centrifugal pump 2 inputs water from the water tank 1 and the return water header pipe 6 into an annular channel between the inner pipe 42 and the outer pipe 41 at a certain pressure, and then the water is injected into the inner pipe 42 through the jet flow injection nozzle 46, so that underground water at the bottom of the outer pipe 41 is driven to enter the inner pipe 42.
The strainer 44 is detachably connected to the outer pipe 41. The outer straining pipe 441 and the inner straining pipe 442 are open at the top and are connected at the bottom in a closed manner. The well point pipe 4 further comprises an annular plate 48, the annular plate 48 is covered on the top of the coarse filter 44, the annular plate 48 closes the top opening between the coarse filter outer pipe 441 and the coarse filter inner pipe 442, and the middle of the annular plate 48 is provided with an opening corresponding to the coarse filter inner pipe 442. The geotextile filter 43 is internally provided with a plurality of layers of geotextile, and the geotextile is covered by a frame with filter holes. Sand is filled in the inner strainer pipe 442, and gravel is filled between the outer strainer pipe 441 and the inner strainer pipe 442. Gravel, sand and geotextile are used as filtering media step by step to filter impurities of underground water, and the coarse filter 44 is in threaded connection with the outer pipe 41, so that the filtering media can be replaced within the service life, and the influence on the water absorption efficiency caused by transition blockage of the filtering media is avoided.
As shown in fig. 3, the slag extractor 5 includes an extractor housing 51, a U-shaped pipe 52 and an inclined baffle 53, the U-shaped pipe 52 is located at the bottom of the extractor housing 51, both ends of the U-shaped pipe 52 are communicated with both ends of the extractor housing 51, and the inclined baffle 53 is disposed inside the extractor housing 51. An inclined baffle plate 53 is arranged in the slag extractor shell 51 close to the water inlet of the U-shaped pipe 52. An inclined baffle plate 53 is arranged inside the U-shaped pipe 52, the bottom of the U-shaped pipe 52 is conical, a slag discharge port 54 is arranged at the bottom of the U-shaped pipe 52, an openable plug 55 is arranged on the slag discharge port 54, and the inclined baffle plate 53 inside the U-shaped pipe 52 is positioned above the slag discharge port 54. After the water flow meets the inclined baffle 53 at the water inlet of the U-shaped pipe 52, silt impacts the inclined baffle 53 and divides the water flow, and part of the water flow containing silt has heavier specific gravity and enters the U-shaped pipe 52 to further impact the inclined baffle 53 inside the U-shaped pipe 52, so that part of the silt with heavier specific gravity is deposited at the bottom of the U-shaped pipe 52.
The foundation pit dewatering and water stopping device has the following working procedures: the well point pipe 4 is inserted underground, underground water is filtered by the strainer 44 and enters the bottom of the outer pipe 41, the jet spray nozzle 46 injects high-pressure water into the inner pipe 42 to drive the underground water at the bottom of the outer pipe 41 to enter the inner pipe 42, when the underground water passes through the slag extractor 5, impurities are further deposited in the slag extractor 5 and enter the water tank 1 through the pneumatic pump 7, redundant water is discharged from an overflow port of the water tank 1, the water tank 1 supplies water to the centrifugal pump 2, the centrifugal pump 2 pumps the water to the water return main pipe 6 and then pumps the water to the outer pipe 41 of each well point pipe 4, and the circulation is repeated in such a way to pump the underground water.
The utility model provides a foundation ditch precipitation stagnant water device has following beneficial effect: by arranging the well points and combining the pneumatic pump 7, the centrifugal pump 2 and the jet flow injection nozzle 46, the water stopping effect is good, and the water pumping efficiency is greatly improved; the well point pipe 4 is concentrically provided with the outer pipe 41, the inner pipe 42 and the jet flow injection nozzle 46, a submersible pump is not needed, the pipe diameter of the well point pipe 4 is small, the well point excavation caliber is small, high-speed jet flow formed by the jet flow injection nozzle 46 forms low pressure near a nozzle, and the pumping pressure of the pneumatic pump 7 is added, so that the water collecting effect is good, and the precipitation depth is large; the well point pipe 4 is filtered through the multiple layers of gravel, sand and geotextile, and the slag extractor 5 is added to further settle sediment, so that the pipeline blockage is reduced, and the service life of the water pump is effectively prolonged.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer", and the like refer to the orientation or positional relationship shown in the drawings, which is only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be considered limiting of the present invention, as these terms are not used in the present specification and are known in the art to which those skilled in the art will recognize.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected" and "disposed" are to be interpreted broadly, and may be, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; the utility model discloses in provide only supply the reference with the model of electrical apparatus. For those skilled in the art, different types of electrical appliances with the same function can be replaced according to actual use conditions, and for those skilled in the art, the specific meaning of the above terms in the present invention can be understood in specific situations.
The aforesaid is only a plurality of concrete implementation manners of the utility model, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.
Claims (10)
1. The utility model provides a foundation ditch precipitation stagnant water device which characterized in that: comprises a water tank, a centrifugal pump, a water supply main pipe, a well point pipe, a slag discharging device, a water return main pipe and a pneumatic pump, the water tank, the centrifugal pump, the water supply main pipe, the well point pipe, the slag discharging device, the water return main pipe and the pneumatic pump are sequentially connected in series to form a loop, the well point pipe comprises an outer pipe, an inner pipe, a geotextile filter, a coarse filter and a conical head, wherein the outer pipe, the geotextile filter, the coarse filter and the conical head are sequentially arranged from top to bottom, the inner pipe is sleeved in the outer pipe, a jet flow spray nozzle is arranged at the joint of the outer pipe and the bottom of the inner pipe, the jet flow injection nozzle is communicated with a channel between the outer pipe and the inner pipe, a jet flow port is arranged on the jet flow injection nozzle, the jet flow port is upwards arranged and is opposite to the center of the inner pipe, the outer tube bottom is equipped with the drainage mouth, the strainer includes the colating outer tube and the inside colating inner tube of colating outer tube is located to the cover, be equipped with the filtration pore on colating outer tube and the colating inner tube.
2. The foundation pit precipitation water stop device of claim 1, characterized in that: the coarse filter is detachably connected with the outer pipe.
3. The foundation pit precipitation water stop device of claim 1, characterized in that: the top of the outer coarse filtration pipe and the inner coarse filtration pipe is open, and the bottom of the outer coarse filtration pipe and the inner coarse filtration pipe are connected in a closed mode.
4. The foundation pit precipitation water stop device of claim 1, characterized in that: the well point pipe further comprises an annular plate, the annular plate is covered on the top of the coarse filter, the annular plate seals a top opening between the coarse filter outer pipe and the coarse filter inner pipe, and an opening corresponding to the coarse filter inner pipe is arranged in the middle of the annular plate.
5. The foundation pit precipitation water stop device of claim 1, characterized in that: and a plurality of layers of geotextile are arranged in the geotextile filter.
6. The foundation pit precipitation water stop device of claim 1, characterized in that: sand is filled in the inner coarse filtration pipe, and gravel is filled between the outer coarse filtration pipe and the inner coarse filtration pipe.
7. The foundation pit precipitation water stop device of claim 1, characterized in that: the slag discharging device comprises a slag discharging device shell, a U-shaped pipe and an inclined baffle plate, the U-shaped pipe is located at the bottom of the slag discharging device shell, two ends of the U-shaped pipe are communicated with two ends of the slag discharging device shell, and the inclined baffle plate is arranged inside the slag discharging device shell.
8. A foundation pit precipitation water stop device according to claim 7, characterized in that: an inclined baffle is arranged at the position, close to the water inlet of the U-shaped pipe, inside the slag extractor shell.
9. A foundation pit precipitation water stop device according to claim 7, characterized in that: the U-shaped pipe is internally provided with an inclined baffle, the bottom of the U-shaped pipe is conical, the bottom of the U-shaped pipe is provided with a slag discharging port, and the slag discharging port is provided with an openable plug.
10. The foundation pit precipitation water stop device of claim 1, characterized in that: and an overflow port is arranged on the water tank.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202120594127.6U CN214883774U (en) | 2021-03-24 | 2021-03-24 | Foundation pit dewatering and water stopping device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202120594127.6U CN214883774U (en) | 2021-03-24 | 2021-03-24 | Foundation pit dewatering and water stopping device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN214883774U true CN214883774U (en) | 2021-11-26 |
Family
ID=79037921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202120594127.6U Active CN214883774U (en) | 2021-03-24 | 2021-03-24 | Foundation pit dewatering and water stopping device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN214883774U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114837207A (en) * | 2022-05-13 | 2022-08-02 | 北京城建集团有限责任公司 | Foundation pit dewatering structure and method |
-
2021
- 2021-03-24 CN CN202120594127.6U patent/CN214883774U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114837207A (en) * | 2022-05-13 | 2022-08-02 | 北京城建集团有限责任公司 | Foundation pit dewatering structure and method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN201208531Y (en) | Mud desander | |
CN107261587B (en) | A kind of strainer automatically cleaning dregs filter | |
CN214883774U (en) | Foundation pit dewatering and water stopping device | |
CN110439015B (en) | Precipitation well structure with clear hole function | |
CN214832823U (en) | Pressure-bearing dewatering well | |
CN105625483A (en) | Water pressure control method for underground construction | |
CN109083177B (en) | Precipitation process of integrated directional vacuum well point pipe | |
CN109296322A (en) | Mine is soaked a kind ofly to fill out gravel well casing and fill out gravel method | |
CN211228566U (en) | Recoverable vacuum light well point dewatering system | |
CN210917423U (en) | Drainage structures falls in foundation ditch | |
CN112502174A (en) | Quick dewatering device for deep foundation pit | |
CN114941510B (en) | Circulating blocking-removing sand-fishing process system | |
CN106498963A (en) | A kind of tube well dewatering system that is drawn water using air compressor machine and water pump concentration | |
CN209603905U (en) | A kind of bridge pile foundation drilling construction mud pit | |
KR100964741B1 (en) | Intake structure for preventing underground water pollution | |
TWI410553B (en) | Seepage-pipe pushing method at sand bank | |
CN201362620Y (en) | Full-automatic water purifier | |
JP2001226977A (en) | Drainage amount increasing method for drainage boring | |
CN209652010U (en) | A kind of foundation pit recycling equipment | |
CN105604076A (en) | Vacuum pump water-discharging device suitable for tunnel excavation | |
CN202219253U (en) | Shield machine and grouting pipe cleaning device thereof | |
CN218263953U (en) | Anti-clogging backwashing device for basement bottom plate drainage and pressure relief | |
CN218540689U (en) | Water and sand pumping device at bottom of pile hole | |
CN204918336U (en) | Device is dealt with to mud | |
CN219431796U (en) | Well flushing device suitable for deep foundation pit excavation tubular well dewatering |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |