CN205348149U - Well point dewatering of hydraulic engineering construction usefulness - Google Patents
Well point dewatering of hydraulic engineering construction usefulness Download PDFInfo
- Publication number
- CN205348149U CN205348149U CN201620118207.3U CN201620118207U CN205348149U CN 205348149 U CN205348149 U CN 205348149U CN 201620118207 U CN201620118207 U CN 201620118207U CN 205348149 U CN205348149 U CN 205348149U
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- China
- Prior art keywords
- inner sleeve
- cover plate
- trocar sheath
- construction
- well
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model provides a well point dewatering of hydraulic engineering construction usefulness which characterized in that: it is by the wellhole, the outer tube, interior sleeve pipe, pack, a cover plate, the bottom plate, the vacuum pump, suction pump and control module constitute, the outer tube is inserted in the middle of the wellhole, interior sleeve pipe is inserted in the middle of the outer tube, the filler is filled out between wellhole and outer tube, apron and the welding of interior outer tube, bottom plate and outer tube welding, vacuum pump interface and apron welding, the drinking -water pipe and the apron welding of suction pump, control module is on the bolt fastening is being lapped and through wire and vacuum pump, the suction pump, admission valve and liquid level switch connect, the utility model discloses simple structure, easy and simple to handle, degree of automation is high, precipitation is fast, construction safe and reliable, practicality is strong.
Description
Technical field
This utility model belongs to hydraulic engineering technical field, is specially the well-points dewatering of a kind of construction of hydro project.
Background technology
Often using well-points dewatering in construction of hydro project process, so-called well-points dewatering is exactly artificial dewatering.Well-points dewatering is before hydraulic engineering is excavated, a number of filter pipe or well casing is buried underground in water journey engineering surrounding, utilizing pumping equipment to draw water makes the soil dug remain drying regime, moisture in drainage base soil, promote soil solidifying, improve foundation strength, slight slope soil body lateral displacement and sedimentation can be reduced simultaneously, stable side slope, eliminate drift sand, reduce the protuberance of substrate soil, the ground being positioned under natural groundwater and basic engineering construction is made to be avoided that the impact of subsoil water, more dry execution conditions are provided, unnecessary artificial input can also be reduced, reduction of erection time, improve construction quality and ensure construction safety.
Application of light well point precipitation is to be contained on the well-point pipe of well point by vacuum equipment simply, vacuum is catchmented and draws water in the same space, and the water sucking mouth of water pump, the pump housing, pipeline and well point interface all cannot be accomplished strictly airtight, vacuum can not be kept in all-the-time stable ground, vacuum effect of catchmenting can not give full play to, reduce dewatering effect, affect construction quality.
Summary of the invention
In order to solve the deficiencies in the prior art, this utility model provides the well-points dewatering of a kind of construction of hydro project.
This utility model be the technical scheme is that the well-points dewatering of a kind of construction of hydro project, it is characterized in that: by wellhole, trocar sheath, inner sleeve, filler, cover plate, base plate, vacuum pump, suction pump and control module composition, trocar sheath is inserted in the middle of wellhole, inner sleeve is inserted in the middle of trocar sheath, filler is filled out between wellhole and trocar sheath, cover plate welds with internal and external casing, base plate welds with trocar sheath, vacuum pump interface is welded with cover plate, suction pump is through being bolted on cover plate, the drinking-water pipe of suction pump welds with cover plate, control module through being bolted on cover plate and through wire and vacuum pump, suction pump, intake valve and liquid-level switch connect.
Described wellhole is the cylindrical cavity straight down being drilled to rig on foundation ditch, and wellbore depth meets geological conditions, precipitation depth and engineering characteristic.
Described trocar sheath is arranged on wellhole central authorities, the length of trocar sheath is less than wellbore depth, trocar sheath is made up of the seamless pipe on top and the fixing welding of the filter tube of bottom, seamless pipe is identical with the caliber of filter tube, the length of filter tube is equal to being embedded in level of ground water depth below, specifically should need according to engineering construction and determine, be typically greater than construction depth 2m, each filtering holes on filter tube all has one-way water inlet valve.
Described inner sleeve is seamless pipe, it is arranged on trocar sheath central authorities, certain interval is had between inner sleeve and trocar sheath, inner sleeve is shorter than trocar sheath, the length difference of internal and external casing is the 1/2 of inner sleeve caliber, inner sleeve upper port flushes with outer sleeve upper mouth, inner sleeve bottom end closure, but has one-way water inlet valve to communicate.
Described filler is arranged between wellhole and trocar sheath, and filler is divided into upper and lower two-layer, and lower floor is coarse sand filtrate, and upper strata is clay and seals in soil layer around, and argillic horizon is more than water-bearing layer.
Described cover plate is annular, and cover plate internal diameter is identical with inner sleeve external diameter, and cover plate external diameter is identical with trocar sheath internal diameter, cover plate is arranged on inner sleeve and outer sleeve upper mouth flush place and with internal and external casing welded seal, cover plate is offered vacuum pump interface and an intake valve.
Described vacuum pump is arranged on the cover board and vacuum pump interface is welded with cover plate for sealing.
Described suction pump is arranged on inner sleeve place, drinking-water pipe on the downside of suction pump and cover plate welded seal, the water sucking mouth of drinking-water pipe lower end is higher than inner sleeve bottom, and described base plate is disc, and its external diameter is identical with trocar sheath internal diameter and flushes with trocar sheath lower port and welded seal.
Further, described filter tube outsourcing nylon wire.
Further, on described cover plate, vacuum pump interface place is provided with Pressure gauge.
Further, described base plate there is one-way water inlet valve.
Further, described suction pump, vacuum pump, intake valve and liquid-level switch control by controlling module, rise to automatic pumping during the high water level of setting with guaranteed water level, are automatically switched off when dropping to the low water level of setting.
This utility model provides the benefit that: ALP of taking to draw water and bleed, pumping for water pump is made to stagger not affect and bleed, thus well casing perimeter water has the unhurried current time toward well point seepage flow, cover plate fixing seal is greatly improved air-tightness, the vacuum that can arrive also is greatly improved, dewatering effect increases substantially than conventional well point dewatering, even if precipitation in the soil layer that permeability is poor, vacuum negative pressure condition within well point can also increase substantially dewatering effect, this is due to negative pressure of vacuum and water pressure combined effect, accelerate the speed that subsoil water flows in well point, it is greatly improved precipitation speed, shorten the construction period, guarantee construction safety.
Accompanying drawing explanation
If Fig. 1 is this utility model structural representation；
If Fig. 2 is this utility model covering plate structure schematic diagram；
Accompanying drawing 3 is this utility model base arrangement schematic diagram；
Accompanying drawing 4 is to control module and vacuum pump, suction pump, intake valve and liquid-level switch connection diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described further.
A kind of well-points dewatering of construction of hydro project, it is by wellhole 1, trocar sheath 2, inner sleeve 3, filler 4, cover plate 5, base plate 6, vacuum pump 7, suction pump 8 and control module 9 form, trocar sheath 2 is inserted in the middle of wellhole 1, inner sleeve 3 is inserted in the middle of trocar sheath 2, filler 4 is filled out between wellhole 1 and trocar sheath 2, cover plate 5 and inner sleeve 3 are welded and fixed, base plate 6 and trocar sheath 2 are welded and fixed, vacuum pump 7 interface and cover plate 5 welded seal, the drinking-water pipe of suction pump 8 and cover plate welded seal, control module 9 through being bolted on cover plate 5 and through wire 15 and vacuum pump 7, suction pump 8, intake valve 11 and liquid-level switch 12 connect.Described wellhole 1 is the cylindrical cavity straight down being drilled to rig on foundation ditch, and wellhole 1 degree of depth meets geological conditions, precipitation depth and engineering characteristic；Trocar sheath 2 is arranged in the middle of wellhole 1, the length of trocar sheath 2 is less than wellhole 1 degree of depth, trocar sheath 2 is fixed welding constituted by the seamless pipe 21 on top and the filter tube 22 of bottom, seamless pipe 21 is identical with the caliber of filter tube 22, the length of filter tube 22 is equal to being embedded in level of ground water depth below, being typically greater than construction depth 2 meters, needing depending on engineering construction, each filtering holes on filter tube 22 is respectively arranged with one-way water inlet valve 10；Inner sleeve 3 is seamless pipe, it is arranged in the middle of trocar sheath 2, certain interval is had between inner sleeve 3 and trocar sheath 2, inner sleeve 3 is shorter than trocar sheath 2, its internal and external casing length difference is the 1/2 of inner sleeve caliber, inner sleeve 3 upper port flushes with trocar sheath 2 upper port, inner sleeve 3 bottom end closure, but communicates equipped with one-way water inlet valve 10；Filler 4 is arranged between wellhole 1 and trocar sheath 2, and filler 4 is divided into upper and lower two-layer, and lower floor is coarse sand filtrate 41, and upper strata is clay 42 and seals with soil layer around, and clay 42 layers is more than water-bearing layer；Described cover plate 5 is annular, cover plate 5 internal diameter is identical with inner sleeve 3 external diameter, cover plate 5 external diameter is identical with trocar sheath 2 internal diameter, and cover plate 5 is arranged on inner sleeve 3 and trocar sheath 2 upper port flushes place and welds with internal and external casing sealing, and cover plate 5 is offered vacuum pump interface 71 and intake valve 11；Described vacuum pump 7 is arranged on cover plate 5 and vacuum pump interface 71 seals with cover plate 5 and welds；Described suction pump 8 is arranged on inner sleeve 3 place, drinking-water pipe 81 on the downside of suction pump 8 seals with cover plate 5 and welds, the water sucking mouth of drinking-water pipe 81 lower end is higher than inner sleeve 3 bottom, it is highly inner sleeve 3 caliber, described base plate 6 is circular, its external diameter is identical with trocar sheath 2 internal diameter, and flushes with trocar sheath 2 lower port and welded seal.
Further, described filter tube 22 outsourcing nylon wire.
Further, on described cover plate 5, vacuum pump interface 71 place is provided with Pressure gauge.
Further, described base plate 6 there is one-way water inlet valve 10.
Further, described suction pump 8, vacuum pump 7, intake valve 11 and liquid-level switch 12 control by controlling module 9, control module 9 and are connected with power supply 14 through wire 15 and switch 13；To ensure suction pump 8 automatic pumping when water level rises to the high water level of setting, it is automatically switched off when dropping to the low water level of setting.
Using method operation principle: control module 9 and be energized work, vacuum pump 7 starts, the one-way water inlet valve 10 of inner sleeve 3 lower end is automatically switched off, intake valve 11 cuts out, trocar sheath 2 periphery water is through filler 4, one-way water inlet valve 10 on trocar sheath 2 enters internal and external casing 3, between 2, when the water entered reaches the high water level set, liquid-level switch 12 is opened, closed vacuum pump 7 by control module 9 and open intake valve 12, open suction pump 8, inner and outer pipes 3, water between 2 enters in inner sleeve 3 through one-way water inlet valve 10, when water level drops to the low water level of setting, liquid-level switch 12 is closed, control module 9 and be automatically switched off suction pump 8 and intake valve 11, open vacuum pump 7 and continue evacuation, the one-way water inlet valve 10 of inner sleeve 3 lower end is automatically switched off, such alternate repetition, just can by below engineering and the water of periphery drop to the degree of depth of construction requirement.
Claims (10)
1. the well-points dewatering of a construction of hydro project, it is characterized in that: it is made up of wellhole, trocar sheath, inner sleeve, filler, cover plate, base plate, vacuum pump, suction pump and control module, trocar sheath is inserted in the middle of wellhole, inner sleeve is inserted in the middle of trocar sheath, filler is filled out between wellhole and trocar sheath, cover plate welds with internal and external casing, base plate welds with trocar sheath, vacuum pump interface is welded with cover plate, the drinking-water pipe of suction pump welds with cover plate, controls module through being bolted on cover plate and being connected with vacuum pump, suction pump, intake valve and liquid-level switch through wire.
2. the well-points dewatering of a kind of construction of hydro project according to claim 1, is characterized in that: described wellhole is the cylindrical bore straight down being drilled to rig on foundation ditch, and wellbore depth meets geological conditions, precipitation depth and engineering characteristic.
3. the well-points dewatering of a kind of construction of hydro project according to claim 1, it is characterized in that: the length of described trocar sheath is less than wellbore depth, trocar sheath is made up of the seamless pipe on top and the fixing welding of the filter tube of bottom, seamless pipe is identical with the caliber of filter tube, the length of filter tube is equal to being embedded in level of ground water depth below, being typically greater than construction depth 2 meters, chimney filter outsourcing nylon wire, each treatment hole of its inwall all has one-way water inlet valve.
4. the well-points dewatering of a kind of construction of hydro project according to claim 1, it is characterized in that: described inner sleeve is seamless pipe, certain gap is had between inner sleeve and trocar sheath, inner sleeve is shorter than trocar sheath, internal and external casing length difference is the 1/2 of inner sleeve caliber, inner sleeve upper port flushes with outer sleeve upper mouth, inner sleeve bottom end closure, but has one-way water inlet valve to communicate.
5. the well-points dewatering of a kind of construction of hydro project according to claim 1, is characterized in that: described filler is divided into upper and lower two-layer, and lower floor is coarse sand filtrate, and upper strata is clay and seals with soil layer around, and argillic horizon is more than water-bearing layer.
6. the well-points dewatering of a kind of construction of hydro project according to claim 1, it is characterized in that: described cover plate is annular, cover plate internal diameter is identical with inner sleeve external diameter, cover plate external diameter is identical with the internal diameter of trocar sheath, cover plate is arranged on inner sleeve and outer sleeve upper mouth flushes place and welds with internal and external casing sealing, offering vacuum pump interface and intake valve and air switch on cover plate, vacuum pump interface is externally provided with Pressure gauge.
7. the well-points dewatering of a kind of construction of hydro project according to claim 1, is characterized in that: described base plate is disc, and its external diameter is identical with trocar sheath internal diameter, and flushes with trocar sheath lower port and seal and weld, and base plate has one-way water inlet valve.
8. the well-points dewatering of a kind of construction of hydro project according to claim 1, is characterized in that: described suction pump is arranged on inner sleeve upper end, the drinking-water pipe on the downside of suction pump and cover plate welded seal, and the water sucking mouth of drinking-water pipe lower end is higher than inner sleeve bottom.
9. the well-points dewatering of a kind of construction of hydro project according to claim 1, is characterized in that: described suction pump, vacuum pump, intake valve and liquid-level switch control by controlling module.
10. the well-points dewatering of a kind of construction of hydro project according to claim 1, it is characterized in that: described liquid-level switch, can pass through to control module and control water pump, it is ensured that water level automatically turns on when rising to the high water level of setting, is automatically switched off when dropping to the low water level of setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620118207.3U CN205348149U (en) | 2016-02-08 | 2016-02-08 | Well point dewatering of hydraulic engineering construction usefulness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620118207.3U CN205348149U (en) | 2016-02-08 | 2016-02-08 | Well point dewatering of hydraulic engineering construction usefulness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205348149U true CN205348149U (en) | 2016-06-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620118207.3U Expired - Fee Related CN205348149U (en) | 2016-02-08 | 2016-02-08 | Well point dewatering of hydraulic engineering construction usefulness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205348149U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489160A (en) * | 2017-08-10 | 2017-12-19 | 魏玉建 | Well-points dewatering automatic servo compensation system |
-
2016
- 2016-02-08 CN CN201620118207.3U patent/CN205348149U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489160A (en) * | 2017-08-10 | 2017-12-19 | 魏玉建 | Well-points dewatering automatic servo compensation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20170208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |