CN210086235U - Precast pile capable of reducing pile driving resistance - Google Patents
Precast pile capable of reducing pile driving resistance Download PDFInfo
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- CN210086235U CN210086235U CN201920741308.XU CN201920741308U CN210086235U CN 210086235 U CN210086235 U CN 210086235U CN 201920741308 U CN201920741308 U CN 201920741308U CN 210086235 U CN210086235 U CN 210086235U
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- pile body
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Abstract
The utility model discloses a precast pile capable of reducing pile driving resistance, which relates to the technical field of building construction, and comprises a hollow precast pile body with two open ends, wherein the side wall of the precast pile body is also internally provided with a water injection hole which extends along the axial direction and runs through the precast pile body, the bottom end of the precast pile body is also fixedly provided with a V-shaped baffle plate for avoiding the bottom end of the water injection hole from being blocked, and a drainage gap is arranged between the top end of the V-shaped baffle plate and the bottom end of the precast pile body; the utility model discloses can effectively reduce the pile resistance, improve pile efficiency.
Description
Technical Field
The utility model relates to a construction field, concretely relates to can reduce precast pile of pile resistance.
Background
Piling, namely, a pile driver drives the prefabricated support piles and the like into the earthwork by means of external force on the basis of not excavating the earthwork; the difficulty of piling is influenced by the size of the support pile, and the main factors include the resistance of the earth to be driven to the support pile.
The traditional piling process does not have a method for well reducing piling resistance, and mainly adopts the method of piling while injecting water at the pile top so as to reduce the resistance.
However, the technology of water injection at the pile top has certain defects; firstly, the injected water can only play a role in lubricating the parts of a supporting pile and the like close to the ground surface by a penetration method, but is difficult to play a role in lubricating the parts driven into the deep part of the ground bottom;
traditional water injection is lubricated, can't wash the dilution to the long-pending soil of internal siltation of pile, leads to carrying out the effect of slip casting reinforcing its intensity in it poor, and is efficient.
Therefore, how to solve the defects of the prior art is a problem which needs to be solved urgently nowadays.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a can reduce precast pile of pile resistance to can't produce the technical problem of lubrication action to the pile body of ground end depths among the solution prior art.
The utility model discloses a realize through following technical scheme:
the utility model provides a can reduce precast pile of pile resistance, including both ends opening and hollow precast pile body, still set up in the lateral wall of precast pile body and prolong its axial extension and run through the water injection hole of its body, the bottom of precast pile body is still fixed mounting have the V type baffle that is used for avoiding water injection hole bottom to block up, and the top of V type baffle with be provided with the drainage gap between the precast pile body bottom.
Further, still evenly set up on the outer wall of precast pile body a plurality of with the water pipe connection hole of water injection hole intercommunication, set up in the water pipe connection hole and be used for sealing its self closed bolt.
Further, V type baffle specifically by with precast pile body axis coincidence, and bottom mutual fixed connection's inner ring baffle and outer ring baffle constitute, the top of inner ring baffle sets up towards its axle center slope, the top of outer ring baffle deviates from its axle center slope setting, V type baffle passes through installed part fixed mounting in the bottom of precast pile body.
Further, the outer diameter of the top end of the inner ring baffle is smaller than the inner diameter of the precast pile body.
Further, a drainage gap is formed between the top end of the inner ring baffle and the inner edge of the bottom end of the precast pile body.
Further, the outer diameter of the outer ring baffle is larger than that of the precast pile body.
Further, the drainage gap is also arranged between the top end of the outer ring baffle and the outer edge of the bottom end of the precast pile body.
Further, the precast pile body is specifically made of reinforced concrete.
Further, the mounting part is a reinforcing steel bar head reserved at the bottom end of the precast pile body when the precast pile body is prepared.
Further, the closing plug is specifically a rubber soft plug.
Compared with the prior art, the utility model has the following advantages: the utility model provides a precast pile capable of reducing pile driving resistance, through setting up water injection hole and pile bottom V type baffle in the precast pile body, combine to set up a plurality of water piping connection holes on the lateral wall of precast pile body, make in the pile driving process, according to the depth of precast pile body squeeze into the soil layer, can choose different water piping connection hole to connect outside water injection device, after closing the water injection hole top, can make rivers flow to the bottom of precast pile body through the water injection hole, and after the direction of V type baffle, upwards strike precast pile body and its surrounding soil layer, on the one hand lubricate precast pile body, on the other hand can strike the soil layer and reduce its compactness, thereby can effectively reduce pile driving resistance; the V-shaped baffle can also avoid the blockage of the bottom end of the water injection hole; the whole device avoids the defect of traditional water injection from top to bottom; for the cylindrical hollow precast pile, the utility model can effectively dilute and flush out the accumulated soil deposited in the pile body, thereby facilitating the pouring of concrete in the pile body and enhancing the overall strength of the pile body; the sealing bolt is set to be a rubber soft plug or a rigid bolt, the water pipe connecting hole which is quickly driven into the soil body is sealed by the rubber soft plug, after the rubber soft plug is driven into the soil body, the water injection pressure is increased, the rubber soft plug is enabled to be flushed away from the water pipe connecting hole, accordingly, the soil body on the periphery of the pile body can be wetted and subjected to resistance reduction through a plurality of water pipe connecting holes in the soil body and gaps at the bottom, and the pile driving resistance is further reduced.
Drawings
Fig. 1 is a schematic view of the internal structure of a precast pile body capable of reducing the internal resistance to pile driving.
In the figure: 1. prefabricating a pile body; 2. a water injection hole; 3. a V-shaped baffle; 4. a water pipe connecting hole; 5. the plug is closed.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1, which illustrates an embodiment of the present invention:
this embodiment provides a can reduce precast pile of pile resistance, including both ends opening and hollow precast pile body 1, still set up in precast pile body 1's the lateral wall and prolong its axial extension and run through the water injection hole 2 of its body, the bottom of precast pile body 1 is still fixed mounting has the V type baffle 3 that is used for avoiding 2 bottom stops up in water injection hole, and is provided with the drainage gap between the top of V type baffle 3 and 1 bottom of precast pile body.
The working principle is as follows:
in this embodiment, when piling precast pile body 1, the top of water injection hole 2 is connected with the outside water pump, and pile driving in-process, rivers flow to the bottom of precast pile body 1 through water injection hole 2, flow to the outside of precast pile body 1 through the drainage gap under the direction of V type baffle 3. Rivers upward flow from bottom to top under the extrusion of precast pile body 1 and soil layer, and then can lubricate precast pile body 1 effectively and be in the intraformational outer wall of soil, but the soil layer that simultaneously the impact closes on softens it, and then can effectively reduce the pile resistance.
Preferably, in this embodiment, in order to avoid the need of connecting an excessively long water pipe to supply water due to the excessively long precast pile body 1, a plurality of water pipe connection holes 4 communicating with the water injection holes 2 are further uniformly formed in the outer wall of the precast pile body 1, and a sealing plug 5 for sealing itself is disposed in each water pipe connection hole 4.
Through the arrangement, the sealing bolt 5 close to the ground surface can be opened in different piling periods, so that the water pump and the corresponding water pipe connecting hole 4 are directly connected with the water injection hole 2, and the defect of top connection is avoided; meanwhile, when the piling depth is close to the corresponding water pipe connecting hole 4, the piling depth can be sealed through the sealing bolt 5, and repeated water injection is carried out by means of other water pipe connecting holes 4 to reduce resistance.
Preferably, in this embodiment, the V-shaped baffle 3 specifically includes an inner ring baffle and an outer ring baffle that coincide with the axis of the precast pile body 1 and are fixedly connected to each other at the bottom end, the top end of the inner ring baffle is inclined toward the axis thereof, the top end of the outer ring baffle is inclined away from the axis thereof, and the V-shaped baffle 3 is fixedly mounted at the bottom end of the precast pile body 1 through a mounting member.
Through the arrangement, the descending resistance of the V-shaped baffle 3 can be effectively reduced at the tip end, so that the piling resistance can be reduced.
Preferably, in this embodiment, in order to avoid the pile foundation layer from blocking the water injection hole 2, the outer diameter of the top end of the inner ring baffle is set to be smaller than the inner diameter of the precast pile body 1, and a drainage gap is set between the top end of the inner ring baffle and the inner edge of the bottom end of the precast pile body 1.
Through the arrangement, the soil layer in the inner cavity of the precast pile body 1 can be effectively softened, and the blockage of the soil layer is avoided.
Preferably, in this embodiment, in order to make the water flow from bottom to top, i.e. to effectively guide the water flow, the outer diameter of the outer ring baffle is set to be larger than the outer diameter of the precast pile body 1, and a drainage gap is also provided between the top end of the outer ring baffle and the outer edge of the bottom end of the precast pile body 1.
Through the above setting for can turn over about, and then its impact force makes progress after water impact V type baffle 3, helps the softening to close on the soil layer and lubricate it and close on the cylinder.
Preferably, the precast pile body 1 is made of reinforced concrete in particular.
Preferably, the mounting member is a reinforcing bar head reserved at the bottom end of the precast pile body 1 when the precast pile body is prepared.
Through the arrangement, the V-shaped baffle is convenient to install, and the manufacturing difficulty of the equipment is reduced.
The closing plug 5 is a rubber soft plug or a rigid bolt, the water pipe connecting hole 4 which is quickly driven into the soil body is closed by the rubber soft plug, and the other parts are closed by the rigid bolt; after the pile body is driven into the soil body, the water injection pressure is increased, so that the rubber soft plug is flushed away from the water pipe connecting hole 4, the soil body on the periphery of the pile body can be wetted and resistance reduced through the water pipe connecting holes 4 in the soil body and the gaps at the bottom, and the pile driving resistance is further reduced.
Claims (10)
1. The utility model provides a can reduce precast pile of pile resistance, includes both ends opening and hollow precast pile body (1), its characterized in that, still set up in the lateral wall of precast pile body (1) and prolong its axial extension and run through water injection hole (2) of its body, the bottom of precast pile body (1) is still fixed mounting to be used for avoiding V type baffle (3) of water injection hole (2) bottom jam, and the top of V type baffle (3) with be provided with the drainage gap between precast pile body (1) bottom.
2. The precast pile capable of reducing the piling resistance according to claim 1, wherein the outer wall of the precast pile body (1) is further uniformly provided with a plurality of water pipe connecting holes (4) communicated with the water injection holes (2), and the water pipe connecting holes (4) are internally provided with sealing bolts (5) for sealing the water pipe connecting holes.
3. A precast pile capable of reducing pile driving resistance according to claim 2, wherein the V-shaped baffle (3) is specifically composed of an inner ring baffle and an outer ring baffle which are coincident with the axis of the precast pile body (1) and fixedly connected with each other at the bottom ends, the top end of the inner ring baffle is inclined towards the axis center thereof, the top end of the outer ring baffle is inclined away from the axis center thereof, and the V-shaped baffle (3) is fixedly installed at the bottom end of the precast pile body (1) through an installation component.
4. A precast pile with reduced piling resistance according to claim 3, wherein the outer diameter of the top end of the inner ring baffle is smaller than the inner diameter of the precast pile body (1).
5. A precast pile with reduced piling resistance according to claim 4, wherein the drainage gap is provided between the top end of the inner ring baffle and the inner edge of the bottom end of the precast pile body (1).
6. A precast pile with reduced piling resistance according to claim 4 or 5, characterized in that the outer diameter of the outer ring baffle is larger than the outer diameter of the precast pile body (1).
7. A precast pile with reduced piling resistance according to claim 6, wherein the drainage gap is also provided between the top end of the outer ring baffle and the outer edge of the bottom end of the precast pile body (1).
8. Precast pile with reduction of piling resistance according to claim 7 characterized by that the precast pile body (1) is made of reinforced concrete in particular.
9. A precast pile with reduced piling resistance according to claim 8, wherein the mounting member is a steel bar head reserved at the bottom end of the precast pile body (1) when the precast pile body is prepared.
10. A precast pile with reduced piling resistance according to claim 9, wherein the closing plug (5) is embodied as a rubber soft plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920741308.XU CN210086235U (en) | 2019-05-22 | 2019-05-22 | Precast pile capable of reducing pile driving resistance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920741308.XU CN210086235U (en) | 2019-05-22 | 2019-05-22 | Precast pile capable of reducing pile driving resistance |
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| Publication Number | Publication Date |
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| CN210086235U true CN210086235U (en) | 2020-02-18 |
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| CN201920741308.XU Active CN210086235U (en) | 2019-05-22 | 2019-05-22 | Precast pile capable of reducing pile driving resistance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113594822A (en) * | 2021-07-29 | 2021-11-02 | 福建省宏闽电力工程监理有限公司 | Transformer substation engineering resistor grounding construction method |
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2019
- 2019-05-22 CN CN201920741308.XU patent/CN210086235U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113594822A (en) * | 2021-07-29 | 2021-11-02 | 福建省宏闽电力工程监理有限公司 | Transformer substation engineering resistor grounding construction method |
| CN113594822B (en) * | 2021-07-29 | 2024-04-19 | 中达安股份有限公司 | Transformer substation engineering resistor grounding construction method |
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