CN204676541U - A kind of cast-in-situ major diameter pipe pile flap valve shoe assisting in opening device - Google Patents
A kind of cast-in-situ major diameter pipe pile flap valve shoe assisting in opening device Download PDFInfo
- Publication number
- CN204676541U CN204676541U CN201520205272.5U CN201520205272U CN204676541U CN 204676541 U CN204676541 U CN 204676541U CN 201520205272 U CN201520205272 U CN 201520205272U CN 204676541 U CN204676541 U CN 204676541U
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- CN
- China
- Prior art keywords
- flap valve
- valve shoe
- cast
- pipe pile
- major diameter
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of cast-in-situ major diameter pipe pile flap valve shoe assisting in opening device, comprise and support steel loop, hoist engine and wire rope; Support steel loop and be arranged on flap valve shoe closed cavity inner upper end, and fit with bilayer sleeve outer tube wall; Wire rope one end is fixedly connected with support steel loop, then upwards drawn by the fixed block outside pipe in bilayer sleeve and steel wire passage, the top of wire rope is connected with hoist engine with the extraction of steel wire passage respectively by the fixed block being fixed on bilayer sleeve outer wall of inner tube.The utility model overcomes the shoe of cast-in-situ major diameter pipe pile flap valve and cannot open or postpone defects such as opening, and meanwhile, assisting in opening apparatus structure is simple, clear principle understands, can repeatedly apply, cheap, and the effect of onsite application is very good.
Description
Technical field
The utility model relates to a kind of cast-in-situ major diameter pipe pile flap valve shoe assisting in opening device, belongs to technical field of civil engineering.
Background technology
At present, cast-in-situ major diameter pipe pile has obtained at engineering fields such as road, municipal administration, port and pier and railways and has applied more and more widely.The patent of invention of a kind of cast-in-situ major diameter pipe pile flap valve shoe and using method (patent No.: ZL200810019689.7) and soft foundation composite ground base construction method for field pouring pipe pile with large diameter (patent No.: ZL02112538.4) relies on the vibration force of stake machine top vibration head, predetermined projected depth is sunk in the cavity structure formed by steel double-layer sleeve pipe and the bottom flap valve shoe linked into an integrated entity, form the ring domain of ground hollow, vibration pipe-drawing after concrete perfusion in cavity, forms cast-in-situ major diameter pipe pile.
Owing to having larger unit volume material specific surface area, thus can greatly reduce material usage when the equal bearing capacity of single pile, save cost, improve cost performance.The general treating depth of cast-in-situ major diameter pipe pile is 10 ~ 25m; flap valve shoe is in bottom bilayer sleeve; the soil pressure be subject to is larger; especially for mud soft soil foundation process; often there will be flap valve shoe cannot open under concrete gravity effect of stress and maybe need to promote the phenomenon just can opened after certain altitude; to such an extent as to the cast-in-situ major diameter pipe pile bottom of coagulation forming cannot reach desired depth, becomes suspension stake, cause bearing capacity of single pile reduction, settlement after construction increasing.
Utility model content
Object: in order to overcome the deficiencies in the prior art, the utility model provides a kind of cast-in-situ major diameter pipe pile flap valve shoe assisting in opening device.
Technical scheme: for solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of cast-in-situ major diameter pipe pile flap valve shoe assisting in opening device, is characterized in that: comprise and support steel loop, hoist engine and wire rope; Support steel loop and be arranged on flap valve shoe closed cavity inner upper end, and fit with bilayer sleeve outer tube wall; Wire rope one end is fixedly connected with support steel loop, and then upwards drawn by the fixed block outside pipe in bilayer sleeve and steel wire passage, the top of wire rope is fixedly connected with hoist engine respectively.
Preferably, described a kind of cast-in-situ major diameter pipe pile flap valve shoe assisting in opening device, it is characterized in that: wire rope is isometric many, its lower end is equidistantly connected with support steel loop, and is connected with hoist engine with the extraction of steel wire passage by the fixed block being fixed on bilayer sleeve outer wall of inner tube.
Described a kind of cast-in-situ major diameter pipe pile flap valve shoe assisting in opening device, is characterized in that: the shape of described support steel loop is be one in circle, X-shaped, Y shape, hexagon or octagon.
Described a kind of cast-in-situ major diameter pipe pile flap valve shoe assisting in opening device, is characterized in that: the upper port diameter when diameter of described support steel loop and flap valve shoe close is suitable, and is greater than the lower port diameter of flap valve shoe.
Described a kind of cast-in-situ major diameter pipe pile flap valve shoe assisting in opening device, is characterized in that: described fixed block is arranged on middle part in flap valve shoe closed cavity, and the height of fixed block is lower than supporting steel loop and higher than the lower port of flap valve shoe.
Preferably, described a kind of cast-in-situ major diameter pipe pile flap valve shoe assisting in opening device, is characterized in that: the position 15 ~ 20cm lower than the upper port of flap valve shoe of described fixed block.
Beneficial effect: a kind of cast-in-situ major diameter pipe pile flap valve shoe assisting in opening device that the utility model provides, have the following advantages: after double braid covering pipe pile mould and flap valve shoe reach desired depth and build a certain amount of concrete, by the pulling function of hoist engine and three wire rope, steel supports steel loop is moved downward, produce and support expansionary force thus assist flap valve shoe to open, be conducive to filling concrete, and effectively reduce flap valve shoe when the vibrations of double braid covering pipe pile mould are pulled out and cannot open or postpone the phenomenon opened, quality of pile can be controlled to preferably.
The utility model overcomes the shoe of cast-in-situ major diameter pipe pile flap valve and cannot open or postpone defects such as opening, and meanwhile, assisting in opening apparatus structure is simple, clear principle understands, can repeatedly apply, cheap, and the effect of onsite application is very good.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present utility model;
Fig. 2 is enforcement schematic diagram of the present utility model;
Fig. 3 is top view of the present utility model;
In figure: support pipe 7, steel wire passage 8 in firm ring 1, wire rope 2, hoist engine 3, fixed block 4, flap valve shoe 5, bilayer sleeve outer tube 6, bilayer sleeve.
Detailed description of the invention
Below in conjunction with specific embodiment, the utility model is further described.
As shown in Figure 1 to Figure 3, a kind of cast-in-situ major diameter pipe pile flap valve shoe assisting in opening device, comprises and supports steel loop 1, wire rope 2 and hoist engine 3; Support steel loop 1 and be arranged on flap valve shoe 5 closed cavity inner upper end, and fit with bilayer sleeve outer tube 6 inwall; Wire rope 2 one end is fixedly connected with support steel loop, and then upwards drawn by the fixed block 4 outside pipe in bilayer sleeve 7 and steel wire passage 8, the top of wire rope 2 is fixedly connected with hoist engine 3 respectively.
Upper port diameter when the diameter of support steel loop 1 and flap valve shoe 5 close is suitable, and is greater than the lower port diameter of flap valve shoe 5.Three wire rope 2 equidistantly connect support steel loop 1, are connected hoist engine 3 through the steel wire passage 8 being fixed on pipe 7 outer wall in bilayer sleeve with fixed block 4 extraction.Steel wire passage 8 can avoid wire rope 2 to contact with the direct of penetration concrete, reduces friction; Position 15 ~ the 20cm lower than the upper port of flap valve shoe 5 of fixed block 4.
In the present embodiment, the shape of described support steel loop 1 is circular, and certainly replacing as equivalent, also can be X-shaped, Y shape, hexagon or octagon etc.
Described fixed block is arranged on middle part in flap valve shoe 5 closed cavity, and the height of fixed block 4 is lower than supporting steel loop 1 and higher than the lower port of flap valve shoe 5.
The using method of the utility model cast-in-situ major diameter pipe pile flap valve shoe assisting in opening device is as follows, comprise the following steps: (1) is when pile sinking comes into effect, double braid covering pipe pile mould bottom being connected with flap valve shoe falls under Gravitative Loads, by manually flap valve shoe being closed align piles position, support steel loop and be placed in flap valve shoe closed cavity inner upper end, wire rope is equidistantly connected support steel loop by steel wire passage and fixed block and is relaxed state;
(2) double braid covering pipe pile mould is sunk to soil from earth's surface, until reach projected depth by vibration or hammering;
(3) by double braid covering pipe pile mould fluid concrete, concrete is made to be full of flap valve shoe inner chamber;
(4), after fluid concrete terminates, start hoist engine and pull support steel loop to make it to move downward by wire rope, under concrete gravity and the synergy of hoist engine motive force, wash flap valve shoe open, concrete enters into counterbore, forms cast-in-situ major diameter pipe pile.
The above is only preferred embodiment of the present utility model; be noted that for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. a cast-in-situ major diameter pipe pile flap valve shoe assisting in opening device, is characterized in that: comprise and support steel loop, hoist engine and wire rope; Support steel loop and be arranged on flap valve shoe closed cavity inner upper end, and fit with bilayer sleeve outer tube wall; Wire rope one end is fixedly connected with support steel loop, and then upwards drawn by the fixed block outside pipe in bilayer sleeve and steel wire passage, the top of wire rope is fixedly connected with hoist engine respectively.
2. a kind of cast-in-situ major diameter pipe pile flap valve shoe assisting in opening device according to claim 1, it is characterized in that: wire rope is isometric many, its lower end is equidistantly connected with support steel loop, and is connected with hoist engine with the extraction of steel wire passage by the fixed block being fixed on bilayer sleeve outer wall of inner tube.
3. a kind of cast-in-situ major diameter pipe pile flap valve shoe assisting in opening device according to claim 1, is characterized in that: the shape of described support steel loop is be one in circle, X-shaped, Y shape, hexagon or octagon.
4. a kind of cast-in-situ major diameter pipe pile flap valve shoe assisting in opening device according to claim 1, is characterized in that: the upper port diameter when diameter of described support steel loop and flap valve shoe close is suitable, and is greater than the lower port diameter of flap valve shoe.
5. a kind of cast-in-situ major diameter pipe pile flap valve shoe assisting in opening device according to claim 1, it is characterized in that: described fixed block is arranged on middle part in flap valve shoe closed cavity, the height of fixed block is lower than supporting steel loop and higher than the lower port of flap valve shoe.
6. a kind of cast-in-situ major diameter pipe pile flap valve shoe assisting in opening device according to claim 5, is characterized in that: the position 15 ~ 20cm lower than the upper port of flap valve shoe of described fixed block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520205272.5U CN204676541U (en) | 2015-04-07 | 2015-04-07 | A kind of cast-in-situ major diameter pipe pile flap valve shoe assisting in opening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520205272.5U CN204676541U (en) | 2015-04-07 | 2015-04-07 | A kind of cast-in-situ major diameter pipe pile flap valve shoe assisting in opening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204676541U true CN204676541U (en) | 2015-09-30 |
Family
ID=54176246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520205272.5U Expired - Fee Related CN204676541U (en) | 2015-04-07 | 2015-04-07 | A kind of cast-in-situ major diameter pipe pile flap valve shoe assisting in opening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204676541U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108265724A (en) * | 2018-03-30 | 2018-07-10 | 中铁北京工程局集团第工程有限公司 | A kind of brill stake holes concrete secondary back cover device for casting |
-
2015
- 2015-04-07 CN CN201520205272.5U patent/CN204676541U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108265724A (en) * | 2018-03-30 | 2018-07-10 | 中铁北京工程局集团第工程有限公司 | A kind of brill stake holes concrete secondary back cover device for casting |
| CN108265724B (en) * | 2018-03-30 | 2023-09-15 | 中铁北京工程局集团第一工程有限公司 | Bored pile hole concrete secondary back cover pouring device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20180407 |