CN210002388U - vacuum preloading drain pipe application device - Google Patents
vacuum preloading drain pipe application device Download PDFInfo
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- CN210002388U CN210002388U CN201920615591.1U CN201920615591U CN210002388U CN 210002388 U CN210002388 U CN 210002388U CN 201920615591 U CN201920615591 U CN 201920615591U CN 210002388 U CN210002388 U CN 210002388U
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Abstract
The utility model discloses an vacuum preloading drain pipe application apparatus, including the screw pile of vertical setting install the pivot rather than coaxial setting in the screw pile, the pivot is by motor drive, hollow structure is adopted in the pivot wear to be equipped with hydraulic pressure in the hollow structure of pivot and be responsible for and the drainage is responsible for, hydraulic pressure be responsible for with the drainage be responsible for through rotatory support component with the pivot is connected be connected with the vacuum pump on the drainage is responsible for be connected with the hydraulic pump on the hydraulic pressure be responsible for be equipped with a plurality of tube holes along the spiral direction equipartition on the pile body of screw pile install the tube dish that sets gradually from last to down a plurality of levels set up on the outside of pivot, the tube dish is fixed in the screw pile, it is a plurality of the tube dish is with a plurality of tube hole corresponds, the tube dish pass through bearing I with the pivot is connected.
Description
Technical Field
The utility model belongs to soft base treatment engineering field of ground, especially kinds of vacuum preloading drain pipe application apparatus.
Background
At present, in the field of soft foundation treatment engineering of rock and soil, a plurality of drainage plates are usually inserted into saturated soft soil foundations such as silt, dredger fill and the like according to the requirement of fixed distance, and water in the saturated soft soil foundations is sucked out through a prefabricated drainage channel on a plastic drainage plate by a vacuum pump.
Disclosure of Invention
The utility model discloses a solve the technical problem who exists among the well-known art and provide kinds of vacuum preloading drain pipe application apparatus, this application apparatus has that installation cycle is short, the drainage is effectual and reuse's advantage.
The utility model discloses a technical scheme that the technical problem that exists among the well-known technology was solved is vacuum preloading drain pipe application apparatus, including the spiral pile of vertical setting install in the spiral pile rather than coaxial setting's pivot, the pivot is by motor drive, hollow structure is adopted in the pivot wear to be equipped with hydraulic pressure in the hollow structure of pivot and be responsible for and the drainage is responsible for, hydraulic pressure be responsible for with the drainage is responsible for through rotatory support component with the pivot is connected, be connected with the vacuum pump on being responsible for the drainage, be connected with the hydraulic pump on being responsible for, be equipped with along a plurality of pipe holes of spiral direction equipartition on the pile body of spiral pile, install the tube dish of a plurality of levels setting that set gradually from top to bottom on the outside of pivot, the tube dish is fixed in the spiral pile, a plurality of the tube dish with a plurality of through pipe hole corresponds, the tube dish passes through bearing I with the pivot is connected.
On the basis of the above scheme, the utility model discloses following improvement has still been made:
the hydraulic pump and the motor are installed at the top of the inner side of the spiral pile.
The hydraulic main pipe is connected with the hydraulic pump through a universal interface I.
The main drainage pipe is connected with the vacuum pump through a universal interface II.
The motor is connected with the rotating shaft through a gearbox.
The pipe plate is provided with a horizontal spiral pipe groove with gradually enlarged diameter from inside to outside, the outer side of the pipe plate is provided with an inlet and outlet pipe orifice opposite to the corresponding pipe passing hole, and the inlet and outlet pipe orifice is connected with the pipe groove and arranged tangentially along the inlet and outlet of the pipe groove.
The utility model has the advantages and positive effects of adopt spiral pile erection equipment to squeeze into, the depth of insertion is big, the installation cycle is short, set up many high vacuum preloading drain pipes that can the level stretch into in the weak soil in vertical pivots of setting, can assemble according to actual engineering needs flexibility, high applicability, many vacuum preloading drain pipes that the level set up improve rigidity through loading hydraulic pressure, rotate through the pivot and push the vacuum preloading drain pipe level that will have enough rigidity into the weak soil, the degree of depth that the vacuum preloading drain pipe stretches into in the soil can reach about 20m, the coverage area is big, vacuum preloading drain pipe ambient pressure difference is little, non-deformable, drainage consolidation is effectual, consolidation drainage efficiency is high, through drainage channel evacuation, need not lay the sand bed course on the soft soil foundation and lay the seal membrane at the sand bed course top and just can carry out drainage consolidation, required engineering material is few, the drainage is effectual, can used repeatedly, low construction cost, and high economic benefits.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the screw pile of the present invention;
fig. 3 is a schematic view of a tube tray according to the present invention;
FIG. 4 is a schematic cross-sectional view of a vacuum pre-pressed drain pipe used in the present invention;
FIG. 5 is a cross-sectional view A-A of FIG. 4;
fig. 6 is a sectional view B-B of fig. 4.
In the figure: 1. performing spiral pile; 1-1, passing through a pipe hole; 1-2, spiral wing; 2. a vacuum preloading drain pipe; 2-1, a central hydraulic pipe; 2-2, a drainage sleeve; 2-3, flexible water-permeable filling bodies; 2-4, a transverse drainage plate; 2-5, longitudinal drainage plates; 2-6, a water permeable protective sleeve; 2-7, a top sealing layer; 2-8, a conical head at the bottom; 3. a rotating shaft; 4. a motor; 5. a vacuum pump; 6. a main drainage pipe; 7. a hydraulic main pipe; 8. a hydraulic pump; 9. a pipe coil; 9-1, bearing I; 9-2, pipe groove; 9-3, the wall of the pipe groove; 9-4, an inlet and outlet pipe orifice; 10. and a bearing II.
Detailed Description
To further understand the contents, features and functions of the present invention, the following embodiments are exemplified and detailed in conjunction with the accompanying drawings as follows:
referring to fig. 4 to 6, vacuum pre-pressed drain pipes 2 comprise a top sealing layer 2-7, a bottom conical head 2-8, a central hydraulic pipe 2-1 coaxially and fixedly connected with the bottom conical head 2-8, and drain sleeves 2-2, wherein the drain sleeves 2-2 are sleeved on the outer side of the central hydraulic pipe 2-1, two ends of the drain sleeves 2-2 are hermetically connected with the central hydraulic pipe 2-1, the outer side of the drain sleeves 2-2 is connected with a plurality of drain plates uniformly distributed along the circumferential direction and water permeable protection structures thereof, the drain plates comprise two types, types are transverse drain plates 2-4, another type is a longitudinal drain plate 2-5, the transverse drain plate 2-4 is provided with a longitudinal drain hole communicated with the drain sleeve 2-2 and perpendicular to the length direction of the drain sleeve 2-2, the longitudinal drain plate 2-5 is provided with a longitudinal drain hole communicated with the drain sleeve 2-2 and parallel to the length direction of the drain sleeve 2-2, the transverse drain plate 2-4, the longitudinal drain plate 2-5, the transverse water permeable protection structures are arranged between the longitudinal drain plates 2-2, the transverse water permeable protection structures and the flexible water permeable packing 2-5, the transverse water permeable protection structures are arranged between the top sealing layer 2-2 and the transverse water permeable packing 2-5, the transverse water permeable packing 2-5, and the transverse water permeable packing 2-5, and the flexible water permeable packing 2-5 are arranged in a transverse water permeable packing body, and the transverse water.
Referring to fig. 1 to 3, the application device of the vacuum preloading drain pipe includes a vertically arranged screw pile 1, a rotating shaft 3 coaxially arranged with the screw pile 1 is installed in the screw pile 1, and the rotating shaft 3 is driven by a motor 4 and supported by a bearing ii 10. The rotating shaft 3 is of a hollow structure, a hydraulic main pipe 7 and a drainage main pipe 6 are arranged in the hollow structure of the rotating shaft 3 in a penetrating mode, the hydraulic main pipe 7 and the drainage main pipe 6 are connected with the rotating shaft 3 through a rotating supporting component, and when the rotating shaft 3 rotates, the hydraulic main pipe 7 and the drainage main pipe 6 are static. A vacuum pump 5 is connected to the main drain pipe 6, and a hydraulic pump 8 is connected to the main hydraulic pipe 7.
The pile body of the spiral pile 1 is provided with a plurality of pipe passing holes 1-1 and spiral wings 1-2 which are uniformly distributed along the spiral direction.
Install the tube panel 9 that sets up from last a plurality of levels that set gradually down on the outside of pivot 3, tube panel 9 is fixed in helical pile 1, it is a plurality of tube panel 9 corresponds with a plurality of pipe hole 1-1 , tube panel 9 pass through bearing I9-1 with pivot 3 is connected.
When the vacuum pre-pressing drainage pipe 2 is used, the vacuum pre-pressing drainage pipe 2 is coiled on the pipe coil 9, the vacuum pre-pressing drainage pipe 2 horizontally penetrates through the corresponding pipe passing hole 1-1, the top of the vacuum pre-pressing drainage pipe 2 penetrates through the side wall of the rotating shaft 3, a central hydraulic pipe 2-1 of the vacuum pre-pressing drainage pipe 2 is connected with the hydraulic main pipe 7, a drainage sleeve 2-2 of the vacuum pre-pressing drainage pipe 2 is connected with the drainage main pipe 6, and the bottom end of the vacuum pre-pressing drainage pipe 2 is a free end. The vacuum preloading drain pipe 2 can be extended out or retracted under the driving of the rotating shaft 3, the pipe disc 9 is supported on the rotating shaft 3 by adopting a bearing I9-1, and the pipe disc 9 is kept still all the time when the rotating shaft 3 rotates.
During the application, the stopper is all installed at the both ends of vacuum pre-compaction drain pipe 2, can effectively control the length that receive and releases of vacuum pre-compaction drain pipe 2. The flexible water-permeable filling bodies 2-3 are made of honeycomb engineering rubber, and are firm and durable. The permeable protective sleeves 2-6 are made of geotextile, are economical and durable, and can effectively prevent the permeable channels from being blocked. The top sealing layers 2-7 are made of engineering silica gel, and are firm and durable. The hydraulic pump 8 and the motor 4 are arranged at the top of the inner side of the screw pile 1, and the structure is compact. The hydraulic pump 8 and the motor 4 may also be mounted outside the screw pile 1. The vacuum pump 5 is arranged on the surface of the soft soil foundation. The hydraulic pressure is responsible for 7 through universal interface I with hydraulic pump 8 is connected, simple to operate, convenient to use. In a similar way, the main drainage pipe 6 is connected with the vacuum pump 5 through a universal interface II. The motor 4 is connected with the rotating shaft 3 through a gearbox. In order to facilitate the horizontal extension of the vacuum preloading drain pipe 2, a horizontal spiral pipe groove 9-2 with gradually enlarged diameter from inside to outside is arranged on the pipe tray 9, a pipe groove wall 9-3 is arranged on the pipe groove 9-2, an inlet and outlet pipe opening 9-4 opposite to the corresponding pipe passing hole 1-1 is arranged on the outer side of the pipe tray 9, and the inlet and outlet pipe opening 9-4 is connected with the pipe groove 9-2 and arranged along the tangential direction of the inlet and outlet of the pipe groove 9-2.
Application example:
the external diameter of the screw pile 1 is 2m, the pile length is 10m, the width of the screw wings 1-2 is 0.3m, the thread pitch is 0.5m, the diameter of the vacuum prepressing drain pipe 2 is 0.16m, the pipe length is 17m, and 30 discs of vacuum prepressing drain pipes 2 are arranged in the screw pile 1.
When the device is used, the application device is driven into a specified depth by adopting spiral pile mounting equipment, the motor 4 is started to rotate forwards, the hydraulic pump 8 is started simultaneously, and the rigidity of the vacuum preloading drain pipe 2 is strengthened under the action of hydraulic pressure; under the drive of motor, pivot 3 rotates, and the vacuum preloading drain pipe 2 that promotes rigidity grow stretches out screw pile 1 and penetrates in the soil body around, triggers until the stopper that is located vacuum preloading drain pipe 2 top, shows that vacuum preloading drain pipe 2 has all penetrated in the soil body, and motor 4 and hydraulic pump 8 close. Repeating the above operation, and injecting the vacuum preloading drain pipes 2 with the preset number into the soft soil needing draining according to the design number and the requirement.
And starting a vacuum pump 5 on the surface of the soft soil foundation, and forming negative pressure of 60-100 kPa in a sealed annular space formed between the drainage sleeve 2-2 and the central hydraulic pipe 2-1 and the drainage main pipe 6, so that pore water in the soil body near the vacuum preloading drainage pipe 2 flows into the drainage sleeve 2-2 and is pumped to the surface of the foundation through the drainage main pipe 6. The horizontal pipe through the surface drains outside the consolidation zone.
And (3) turning off the vacuum pump 5 until the soil body reaches the preset strength, starting the motor 4 to rotate reversely, and pulling the vacuum preloading drain pipe 2 by the rotating shaft 3 to be coiled into the static pipe coil 9 until the stopper positioned at the free end of the vacuum preloading drain pipe 2 is triggered, so that the vacuum preloading drain pipe 2 is completely withdrawn. Then, taking out and recycling the application device and the vacuum preloading drain pipe 2 by adopting spiral pile mounting equipment for repeated utilization; and backfilling the pile holes by using sand and stone materials or soil materials to finish the soft soil foundation reinforcement.
The area of the reinforced area is 200m multiplied by 200m, the depth is 10m, and the vacuum preloading drain pipe 2 and the application device thereof are adopted, so that the process can be finished in 1-2 months. And the existing drainage plate is adopted, and the number of construction people is the same, and the drainage plate needs 6-8 months.
Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention, which is within the scope of the present invention.
Claims (6)
- The application device of the vacuum preloading drain pipe is characterized by comprising a vertically arranged spiral pile, wherein a rotating shaft which is coaxial with the spiral pile is arranged in the spiral pile, and the rotating shaft is driven by a motor;the rotating shaft is of a hollow structure, a hydraulic main pipe and a drainage main pipe are arranged in the hollow structure of the rotating shaft in a penetrating mode, the hydraulic main pipe and the drainage main pipe are connected with the rotating shaft through a rotary supporting component, a vacuum pump is connected to the drainage main pipe, and a hydraulic pump is connected to the hydraulic main pipe;a plurality of through pipe holes are uniformly distributed in the spiral direction on the pile body of the spiral pile;install the pipe dish that sets up from last a plurality of levels that set gradually extremely down on the outside of pivot, the pipe dish is fixed in the screw pile, it is a plurality of the pipe dish is with a plurality of manage the tube hole and correspond, the pipe dish pass through bearing I with the pivot is connected.
- 2. The vacuum pre-stressed drain pipe application device of claim 1, wherein the hydraulic pump and the motor are mounted on top of the inside of the screw pile.
- 3. The vacuum pre-stressed drain pipe application device according to claim 1, wherein the hydraulic main pipe is connected with the hydraulic pump through a universal joint i.
- 4. The vacuum preloading drain pipe application device of claim 1, wherein the drain main pipe is connected with the vacuum pump through a universal interface II.
- 5. The vacuum pre-stressed drain pipe application device of claim 1, wherein the motor is connected to the shaft through a gearbox.
- 6. The vacuum preloading drain pipe application device according to claim 1, wherein a horizontal spiral pipe groove with gradually enlarged diameter from inside to outside is provided on the pipe tray, an inlet and outlet pipe orifice opposite to the corresponding pipe passing hole is provided on the outside of the pipe tray, the inlet and outlet pipe orifice is connected with the pipe groove and arranged tangentially along the inlet and outlet of the pipe groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920615591.1U CN210002388U (en) | 2019-04-30 | 2019-04-30 | vacuum preloading drain pipe application device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920615591.1U CN210002388U (en) | 2019-04-30 | 2019-04-30 | vacuum preloading drain pipe application device |
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| Publication Number | Publication Date |
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| CN210002388U true CN210002388U (en) | 2020-01-31 |
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| CN201920615591.1U Active CN210002388U (en) | 2019-04-30 | 2019-04-30 | vacuum preloading drain pipe application device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944229A (en) * | 2019-04-30 | 2019-06-28 | 交通运输部天津水运工程科学研究所 | A kind of vacuum preloading drainpipe application apparatus |
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2019
- 2019-04-30 CN CN201920615591.1U patent/CN210002388U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944229A (en) * | 2019-04-30 | 2019-06-28 | 交通运输部天津水运工程科学研究所 | A kind of vacuum preloading drainpipe application apparatus |
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