CN202644531U - Pressure-preloading pile sealing device for static pressure pile of anchor rod - Google Patents
Pressure-preloading pile sealing device for static pressure pile of anchor rod Download PDFInfo
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- CN202644531U CN202644531U CN 201220134601 CN201220134601U CN202644531U CN 202644531 U CN202644531 U CN 202644531U CN 201220134601 CN201220134601 CN 201220134601 CN 201220134601 U CN201220134601 U CN 201220134601U CN 202644531 U CN202644531 U CN 202644531U
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- pile
- high tensile
- piling
- tensile reinforcement
- pressure
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Abstract
The utility model discloses a pressure-preloading pile sealing device for a static pressure pile of an anchor rod. The lower part of a left pre-buried screw (8.1) and the lower part of a right pre-buried screw (8.2) are pre-buried in a pile pressing platform (7), and the upper part of the left pre-buried screw (8.1) and the upper part of the right pre-buried screw (8.2) are respectively and correspondingly connected with the lower part of a left high tensile reinforcement (4.1) and the lower part of a right high tensile reinforcement (4.2) by a left connecting nut (6.1) and a right connecting nut (6.2); the upper parts of the left and right high tensile reinforcements (4.1 and 4.2) penetrate through a secondary beam (2.1) on the left side of a pile pressing hole and then are fixed on the secondary beam (2.1) on the left side of the pile pressing hole by a first high tensile reinforcement anchoring end (1.1) and a second high tensile reinforcement anchoring end (1.2); and a pile pressing jack (10) is arranged at the upper part of the static pressure pile (9), a main beam (3) is arranged on the pile pressing jack (10), and the secondary beam (2.1) on the left side of the pile pressing hole and a secondary beam (2.2) on the right side of the pile pressing hole are pressed on the main beam (3). The pressure-preloading pile sealing device with the structure overcomes the problems of springback of a pile body, additional settlement of a building and the like which are caused by the conventional pile sealing construction methods. In addition, the device has the characteristics of portable equipment, easiness in operation, economic construction cost and the like.
Description
Technical field
The utility model relates to a kind of envelope stake device, particularly a kind of constructability that is applicable to anchor jacked pile envelope pile driving construction, be conducive to the precharge pressure envelope stake device that reduces the pile body resilience, reduce the building additional settlement.
Background technology
The anchor rod static pressure pile driving construction is direct because of its mode of transfer force, and consolidation effect is obvious, and the advantages such as equipment is light, convenient, the cost economic of construction, is widely used in the Pile Foundation Constructed in Reverse Order engineering of the underpining of existing building, reinforcing and New Buildings.But different from traditional pressing pile construction method sequence of construction because of it, both it utilized the effect of existing building upper load to carry out pile sinking, therefore can make during pressing pile construction and be reinforced ground and produce additional settlement, particularly stop the native resilience of stake end behind the pile driving pressure removal during piling, can make stake end have 10～30mm on lift, if after adopting general job practices to seal stake, upper load can make the anchor jacked pile pile top again sink to some extent, thereby cause the building additional settlement, can't guarantee consolidation effect.
For guaranteeing consolidation effect, when pile driving pressure and the stake top mark up to after designing requirement, in the situation that do not unload, in the piling hole, stake is cast in the early strength micro expansion pea gravel concreten with the basis immediately, and concrete strength reach design strength 90% after can unload, and to reach the seven day time of the minimum needs of concrete design strength requirement.After must requiring, pile driving frame and work jack just can remove and then put into the piling work at next place more than guaranteeing.Can seriously influence like this utilization rate and the speed of application of piling plant equipment.For guaranteeing speed of application and consolidation effect, when the pile driving pressure of anchor jacked pile and stake top mark up to after designing requirement, pile driving frame is removed the piling work of putting into next place, reinstall precharge pressure envelope stake device and seal stake, adopt this kind device effectively to guarantee speed of application and consolidation effect.
Summary of the invention
Technical problem:The pile body resilience, the building additional settlement that cause in order to overcome tradition envelope pile construction method
Etc. problem, the utility model provides a kind of anchor jacked pile precharge pressure envelope stake device.
Technical scheme:A kind of anchor jacked pile precharge pressure envelope pilework of the present utility model, this structure comprises the first high tensile reinforcement anchored end, the second high tensile reinforcement anchored end, the strong Bar Anchorage end of third high, the 4th high tensile reinforcement anchored end, left side, piling hole secondary beam, right side, piling hole secondary beam, girder, left side high tensile reinforcement, right side high tensile reinforcement, pressure reading table, left side attaching nut, right side attaching nut, piling cushion cap, left side pre embedded bolt, right side pre embedded bolt, static pressed pile, piling jack, steel plate end socket; Wherein, the bottom of left side pre embedded bolt and right side pre embedded bolt is embedded in the piling cushion cap, top is connected with the bottom of left side high tensile reinforcement, right side high tensile reinforcement by left side attaching nut, right side attaching nut correspondence, and the top of left side high tensile reinforcement, right side high tensile reinforcement is passed left side, piling hole secondary beam and is fixed on the secondary beam of left side, piling hole by the first high tensile reinforcement anchored end, the second high tensile reinforcement anchored end; Be provided with the piling jack on the top of static pressed pile, be provided with girder at the piling jack, piling hole left side secondary beam and right side, piling hole secondary beam are pressed on the girder.
End at the top of static pressed pile one joint arranges a steel plate end socket, piling jack with the pressure read table is set between steel plate end socket and envelope stake pile frame, by the pressure of regulating the piling jack static pressed pile (9) is exerted pressure, seal the effect that stake reaches the stake of precharge pressure envelope thereby reach behind the design precharge pressure in the situation that do not withdraw from envelope stake device.
When the pile driving pressure of anchor jacked pile and stake top mark up to after designing requirement, pile driving frame is removed the piling work of putting into next place, can carry out the stake of precharge pressure envelope by this device, one joint short steel pipes namely is set in the stake end, and precharge pressure envelope stake device is connected on the counter-force bolt on next door, piling hole, between short steel pipes and envelope stake reaction frame, arrange and be with manometric jack, stake is exerted pressure to the envelope stake pile driving pressure of designing requirement, seal simultaneously stake, short steel pipes is enclosed in the cushion cap, after the concrete that seals stake reaches the intensity of designing requirement, remove again precharge pressure envelope stake device, intercept unnecessary steel pipe, at this moment anchor jacked pile just directly bears the existing load of upper building, thereby avoided pile body generation rebound deformation and compressive strain, made stake week and the soil body in the lower certain limit of an end set up the counter-force of precharge pressure.
Beneficial effect:The utility model can control well because the caused additional settlement of pile body resilience.So not only can avoid the sedimentation of the building that the stake resilience causes, stop simultaneously the sedimentation of the building that stake causes the disturbance of the soil body.
Description of drawings
Fig. 1: the positive elevational schematic view of expression anchor jacked pile precharge pressure envelope stake,
Fig. 2: expression anchor jacked pile precharge pressure envelope stake side elevation schematic diagram,
Fig. 3: expression anchor jacked pile precharge pressure envelope stake plan view.
Wherein have: the first high tensile reinforcement anchored end 1.1, the second high tensile reinforcement anchored end 1.2, the strong Bar Anchorage end 1.3 of third high, the 4th high tensile reinforcement anchored end 1.4, left side, piling hole secondary beam 2.1, right side, piling hole secondary beam 2.2, girder 3, left side high tensile reinforcement 4.1, right side high tensile reinforcement 4.2, pressure reading table 5, left side attaching nut 6.1, right side attaching nut 6.2, piling cushion cap 7, left side pre embedded bolt 8.1, right side pre embedded bolt 8.2, static pressed pile 9, piling jack 10, steel plate end socket 11.
The specific embodiment
The first high tensile reinforcement anchored end 1.1 is piling hole front left side 15.2 OVM single hole anchor devices and the anchoring of diameter 14mm high tensile reinforcement,
The second high tensile reinforcement anchored end 1.2 is piling hole forward right side 15.2 OVM single hole anchor devices and the anchoring of diameter 14mm high tensile reinforcement,
The strong Bar Anchorage end 1.3 of third high is piling hole left rear side 15.2 OVM single hole anchor devices and the anchoring of diameter 14mm high tensile reinforcement,
The 4th high tensile reinforcement anchored end 1.4 is piling hole right lateral side 15.2 OVM single hole anchor devices and the anchoring of diameter 14mm high tensile reinforcement,
Piling hole left side secondary beam 2.1 is left side, piling hole secondary beam (adopt the 10mm steel plate to be welded into I shape, high 150mm, long 500mm offers diameter 16mm hole at two ends).
Right side, piling hole secondary beam 2.2 is right side, piling hole secondary beam (adopt the 10mm steel plate to be welded into I shape, high 150mm, long 500mm offers diameter 16mm hole at two ends).
Left side high tensile reinforcement 4.1 is left side, piling hole diameter 14mm high tensile reinforcement, and welded top diameter 24mm double nut is connected with the cushion cap pre embedded bolt, and the end is connected with ground tackle.
Right side high tensile reinforcement 4.2 is left side, piling hole diameter 14mm high tensile reinforcement, and welded top diameter 24mm double nut is connected with the cushion cap pre embedded bolt, and the end is connected with ground tackle.
Pressure reading table 5 is the jack pressure read table,
Left side attaching nut 6.1 is screw rod top, left side, piling hole welding diameter 24mm double nut,
Right side attaching nut 6.2 is screw rod top, right side, piling hole welding diameter 24mm double nut,
Piling cushion cap 7 is concrete structure,
Left side pre embedded bolt 8.1 is pre-buried or rear implanted diameter 24mm screw rod in the cushion cap of left side, piling hole,
Right side pre embedded bolt 8.2 is pre-buried or rear implanted diameter 24mm screw rod in the cushion cap of right side, piling hole,
Static pressed pile 9 is steel pipe or concrete in static piling,
The steel plate end socket is 108 * 10.0 short steel pipes, long 300mm, and inner concrete perfusion tamps, and 10mm steel plate end socket is adopted in the end.
The bottom of left side pre embedded bolt 8.1 and right side pre embedded bolt 8.2 is embedded in the piling cushion cap 7, top is connected with the bottom of left side high tensile reinforcement 4.1, right side high tensile reinforcement 4.2 by left side attaching nut 6.1, right side attaching nut 6.2 correspondences, and the top of left side high tensile reinforcement 4.1, right side high tensile reinforcement 4.2 is passed left side, piling hole secondary beam 2.1 and is fixed on the secondary beam 2.1 of left side, piling hole by the first high tensile reinforcement anchored end 1.1, the second high tensile reinforcement anchored end 1.2; Be provided with piling jack 10 on the top of static pressed pile 9, be provided with girder 3 at piling jack 10, piling hole left side secondary beam 2.1 and right side, piling hole secondary beam 2.2 are pressed on the girder 3.
When 1, the anchor jacked pile pressing pile construction is to final section, the short steel pipes that one joint length and intensity meets design requirement-steel plate end socket (diameter should not greater than 150mm) is set on stake top, and be pressed into cushion cap by the pile driving frame of anchor jacked pile, simultaneously design elevation is sent in stake.
2, remove pile driving frame, by the diagram requirement precharge pressure is sealed pile frame and be placed in a top, precharge pressure envelope pile frame is connected with former cushion cap top pre embedded bolt by 4 diameter 14mm high tensile reinforcements.
3, be fastenedly connected bolt and top ground tackle, adjust counter-force girder and secondary beam position, between stake short steel pipes and counter-force girder, lay and be with manometric jack.
4, jack is progressively exerted pressure, until pressure gauge reading extremely designs the precharge pressure value when sealing stake.
5, a welding envelope stake reinforcing bar, to pile crown clear up and water moistening after, pour into a mould high-strength slightly expanded concrete and seal stake.
6, wait sealing after pile concrete intensity meets design requirement, unclamp top ground tackle and bottom connecting bolt, a removal precharge pressure envelope stake device.And will expose the unnecessary steel pipe excision of cushion cap face.
Claims (2)
1. an anchor jacked pile precharge pressure envelope stake device is characterized in that this structure comprises the first high tensile reinforcement anchored end (1.1), the second high tensile reinforcement anchored end (1.2), the strong Bar Anchorage end of third high (1.3), the 4th high tensile reinforcement anchored end (1.4), left side, piling hole secondary beam (2.1), right side, piling hole secondary beam (2.2), girder (3), left side high tensile reinforcement (4.1), right side high tensile reinforcement (4.2), pressure reading table (5), left side attaching nut (6.1), right side attaching nut (6.2), piling cushion cap (7), left side pre embedded bolt (8.1), right side pre embedded bolt (8.2), static pressed pile (9), piling jack (10), steel plate end socket (11); Wherein, the bottom of left side pre embedded bolt (8.1) and right side pre embedded bolt (8.2) is embedded in the piling cushion cap (7), top is connected with the bottom of left side high tensile reinforcement (4.1), right side high tensile reinforcement (4.2) by left side attaching nut (6.1), right side attaching nut (6.2) correspondence, and the top of left side high tensile reinforcement (4.1), right side high tensile reinforcement (4.2) is passed piling hole left side secondary beam (2.1) and is fixed on the piling hole left side secondary beam (2.1) by the first high tensile reinforcement anchored end (1.1), the second high tensile reinforcement anchored end (1.2); Be provided with piling jack (10) on the top of static pressed pile (9), be provided with girder (3) at piling jack (10), piling hole left side secondary beam (2.1) and right side, piling hole secondary beam (2.2) are pressed on the girder (3).
2. anchor jacked pile precharge pressure according to claim 1 seals the stake device, it is characterized in that one steel plate end socket (11) being set the end of a joint topmost in static pressed pile (9), the piling jack (10) of band pressure read table (5) is set between steel plate end socket (11) and envelope stake pile frame, by the pressure of regulating piling jack (10) static pressed pile (9) is exerted pressure, seal the effect that stake reaches the stake of precharge pressure envelope thereby reach behind the design precharge pressure in the situation that do not withdraw from envelope stake device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220134601 CN202644531U (en) | 2012-04-01 | 2012-04-01 | Pressure-preloading pile sealing device for static pressure pile of anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220134601 CN202644531U (en) | 2012-04-01 | 2012-04-01 | Pressure-preloading pile sealing device for static pressure pile of anchor rod |
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| Publication Number | Publication Date |
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| CN202644531U true CN202644531U (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220134601 Expired - Lifetime CN202644531U (en) | 2012-04-01 | 2012-04-01 | Pressure-preloading pile sealing device for static pressure pile of anchor rod |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510517A (en) * | 2013-10-21 | 2014-01-15 | 江苏东南特种技术工程有限公司 | Large-tonnage anchor rod simple static-pressure-pile pressing frame |
| CN104762967A (en) * | 2015-04-14 | 2015-07-08 | 中天建设集团有限公司 | Improved anchor rod static pressure pile sealing device and construction method |
| CN106032668A (en) * | 2015-03-18 | 2016-10-19 | 中天建设集团有限公司 | Method and device for sealing piles without unloading static pressure piles of anchor rods |
| CN109881723A (en) * | 2019-03-20 | 2019-06-14 | 上海华铸地基技术有限公司 | A kind of comprehensive controllable method for correcting error of anchor jacked pile |
-
2012
- 2012-04-01 CN CN 201220134601 patent/CN202644531U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510517A (en) * | 2013-10-21 | 2014-01-15 | 江苏东南特种技术工程有限公司 | Large-tonnage anchor rod simple static-pressure-pile pressing frame |
| CN106032668A (en) * | 2015-03-18 | 2016-10-19 | 中天建设集团有限公司 | Method and device for sealing piles without unloading static pressure piles of anchor rods |
| CN104762967A (en) * | 2015-04-14 | 2015-07-08 | 中天建设集团有限公司 | Improved anchor rod static pressure pile sealing device and construction method |
| CN109881723A (en) * | 2019-03-20 | 2019-06-14 | 上海华铸地基技术有限公司 | A kind of comprehensive controllable method for correcting error of anchor jacked pile |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |