Inclined pile supporting structure convenient to penetrate through dense soil layer
By setting up a water drill pipe in the pile body and eroding the soil layer with high pressure water flow, the construction problem of the oblique pile support structure in the dense soil layer is solved, and efficient pile driving effect is achieved.
Patent Information
- Application Number
- CN202422536388.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-19
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-10-19
AI Technical Summary
When constructing a dense soil layer in the prior art, it is difficult to pile driving the oblique pile support structure, and the hole-guiding method is not applicable, which can easily lead to damage to the pile body.
A water drill pipe is installed in the pile body, and the soil layer is washed with high-pressure water flow, and the water flow impact force and soaking the soft soil layer is reduced to the difficulty of pile driving.
It effectively reduces the difficulty of pile driving of inclined pile brace structures, improves construction efficiency, and avoids damage to pile body. It is suitable for the normal installation of inclined pile brace structures.
Smart Images
Figure CN223202320U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of pile foundation construction technology, and in particular to an inclined pile support structure that facilitates penetration of dense soil layers. Background Art
[0002] Prefabricated rectangular reinforced concrete pile-support structures are typically driven into the ground using methods such as static pressure, hammering, and vibration. However, when constructing in hard strata or interlayers, the soil resistance is very high, making direct driving of the pile into the ground extremely difficult. Forced driving can also easily lead to quality accidents such as pile damage.
[0003] In related technologies, when encountering harder strata or interlayers during construction, the method of drilling holes is often used to solve the problem. Before driving or hammering piles, a drilling machine is used to drill holes at the pile points where piles are to be driven, so that the holes can break through the harder strata or interlayers and reach the silt layer. This way, the pile body will not be damaged when driving piles. After drilling, the holes must be backfilled immediately to prevent the holes from collapsing. However, for construction situations where the pile body of the pile support needs to be installed obliquely, the drilling method requires oblique drilling. The wall stability of the oblique drilling is poor and it is prone to collapse. Therefore, drilling is not very suitable for oblique pile support structures.
[0004] In view of the above-mentioned related technologies, in order to facilitate the piling of the oblique pile-supporting structure, the inventors designed an oblique pile-supporting structure that is easy to penetrate dense soil layers. Utility Model Content
[0005] In order to facilitate the piling of the oblique pile support structure, the present application provides an oblique pile support structure that is easy to penetrate the dense soil layer, which has the effect of pre-softening the soil layer with a water jet during the piling process, and can effectively reduce the difficulty of installing the oblique pile support structure.
[0006] The present application provides an oblique pile support structure that facilitates penetration of dense soil layers and adopts the following technical solutions:
[0007] The invention discloses an oblique pile support structure which is convenient for penetrating dense soil layers. The oblique pile support structure comprises a pile body. A water jet pipe is arranged in the pile body and penetrates the entire pile body along the length direction of the pile body.
[0008] By adopting the above technical solution, a water jet pipe is added to the pile body. When encountering a harder soil layer or interlayer during the piling process, the soil layer is flushed with high-pressure water flow. The soil layer is softened by the impact force of the water flow and the immersion of water, which effectively reduces the difficulty of piling. It can also function normally when used as an obliquely installed pile support structure.
[0009] Optionally, a conical pointed pile head is provided at one end of the pile body; a water jet pipe is provided in the pile body, the water jet pipe is provided at the center of the pile body and extends out from the tip of the pointed pile head.
[0010] By adopting the above technical solution, the water jet pipe is set at the tip of the pointed pile head. During the piling process, the tip of the pointed pile head first contacts the harder soil layer or interlayer. The water jet pipe set at the tip of the pointed pile head will first flush and soften the soil layer near the tip of the pointed pile head. Then, the conical pointed pile head can easily break through the harder soil layer, which helps the pointed pile head to quickly break through the soil layer to complete the piling.
[0011] Optionally, a plurality of water jet pipes are provided along the circumference of the pile body; and a through hole is provided through the center of the pile body.
[0012] By adopting the above technical solution, a through hole is opened in the middle of the pile body to remove the mud formed by water jet scouring; multiple water jet pipes are set along the circumference of the pile body to improve the efficiency of water jet scouring and soaking the soil layer, further accelerating the efficiency of piling.
[0013] Optionally, the pile body is configured to have multiple sections, the water jet pipeline is configured to have multiple sections corresponding to the pile body, and a pressure pipeline joint is provided at the connecting end of two sections of the water jet pipeline.
[0014] By adopting the above technical solution, for the multi-section pile body assembled at the construction site, the water jet pipes in the pile body also need to be connected at the construction site, and the connection of the multi-section water jet pipes is completed through the pressure pipe joint.
[0015] Optionally, the pressure pipe joint includes a water-expandable sealing ring, and the connecting end of the pile body is provided with an installation groove for installing the water-expandable sealing ring.
[0016] By adopting the above technical solution, a water-expandable sealing ring is sleeved on the connecting pipe section. The water-expandable sealing ring expands when exposed to water and seals the gap between the two pipe sections, which is very convenient to use.
[0017] Optionally, the water expansion sealing ring is gap-fitted with the installation groove, and the water expansion sealing ring is plug-fitted with the water jet pipe.
[0018] By adopting the above technical solution, the water expansion sealing ring is matched with the installation groove gap, and the installation of the water expansion sealing ring is more convenient; after the water expansion sealing ring expands, it fully fills the gap to form a stable and reliable seal.
[0019] Optionally, the pile body includes a steel pipe, a concrete core filled outside the steel pipe, and a concrete surface layer covering the outside of the steel pipe; one end where the pile body segments are connected to each other is set as a connection end where the steel pipe is exposed to the outside.
[0020] By adopting the above technical solution, the steel tube is exposed at the connection end of the steel tube concrete pile, which makes it convenient to connect and fix the two pile sections by welding, adding web connections, etc.
[0021] Optionally, the pile body is a rectangular pile, and four water jet pipes are provided and symmetrically arranged at the four corners of the pile body.
[0022] By adopting the above technical solution, for rectangular piles, the installation space at the four corners is relatively larger. The water jet pipes are set at the four corners of the rectangular pile, and the four corners of the pile body spray water jets toward the soil layer at the same time, which helps to break the soil layer efficiently.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. The present application discloses an oblique pile support structure that facilitates penetration of dense soil layers. By installing a water jet pipe in the pile body, when encountering a harder soil layer during the piling process, high-pressure water is sprayed through the water jet pipe to break open and soften the hard soil layer, thereby successfully completing the piling. The structure can also be used normally during the installation of the oblique pile support, assisting in the efficient completion of the piling.
[0025] 2. Setting up water jet pipes in the dead corners of the rectangular pile body can more efficiently flush the soil layer with the water jet. At the same time, the mud generated by flushing can be discharged from the hole in the center of the pile body, which is conducive to the smooth installation of the pile body. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present application;
[0027] Figure 2 Schematic diagram of the pile body structure with a pointed pile head in Example 1 of the present application;
[0028] Figure 3 This is a schematic structural diagram of the second pile body section in Example 1 of the present application;
[0029] Figure 4 This is a schematic structural diagram of a pile body section with a pointed pile head in Example 2 of the present application;
[0030] Figure 5 It is a structural schematic diagram of the second pile body section in Example 2 of the present application.
[0031] Description of the drawings: 1. Pile body; 11. Concrete core; 12. Steel pipe; 13. Concrete surface; 14. Connection end; 15. Pointed pile head; 16. Steel bar; 17. Mounting groove; 18. Through hole; 2. Water jet pipe; 3. Water expansion seal. DETAILED DESCRIPTION
[0032] The embodiment of the present application discloses an oblique pile support structure that is convenient for penetrating dense soil layers.
[0033] Example 1:
[0034] Reference Figure 1 and Figure 2 An oblique pile support structure that is convenient for penetrating dense soil layers includes a pile body 1 and a water jet pipe 2. The water jet pipe 2 is arranged in the pile body 1 along the length direction and runs through the entire pile body 1.
[0035] The pile body 1 is a rectangular steel pipe 12 concrete pile, which includes a rectangular steel pipe 12, a concrete core 11 filled in the steel pipe 12, and a concrete surface layer 13 covering the outside of the steel pipe 12; the pile body 1 is divided into two sections, and the steel pipe 12 at one end of the pile body 1 sections is exposed to the outside to form a connecting end 14, which is convenient for connecting and fixing the two sections of the pile body 1 by welding; a conical pointed pile head 15 is provided at the bottom of the lowest pile body 1 section; the water jet pipe 2 in the pile body 1 is arranged in the center of the pile body 1 and extends out at the tip of the pointed pile head 15, and a reinforcing steel bar 16 is arranged in the center of the pile body 1, and the water jet pipe 2 and the steel bar 16 pass through the pointed pile head 15 side by side.
[0036] refer to Figure 2 and Figure 3 The water jet pipe 2 is arranged in two sections corresponding to the pile body 1, and the water jet pipe 2 is pre-buried in the pile body 1. Within the pile body section with the pointed pile head 15, the water jet pipe 2 is pre-buried in the concrete core 11; a circular mounting groove 17 is provided at the connecting end 14 of the two pile body sections corresponding to the position of the water jet pipe 2, exposing the end of the water jet pipe 2.
[0037] The connecting end 14 of the two sections of water jet pipes 2 is provided with a pressure pipe joint as a connecting part, and the pressure pipe joint includes a water expansion sealing ring 3. The connecting end 14 of the pile body 1 is provided with an installation groove 17 for installing the water expansion sealing ring 3. The water expansion sealing ring 3 is sleeved on the water jet pipe 2, and the water expansion sealing ring 3 is gap-fitted with the installation groove 17; after the two sections of the pile body 1 are connected.
[0038] The implementation principle of Example 1 is: by installing a water jet pipe 2 in the pile body 1, when encountering a harder soil layer during the piling process, high-pressure water flow is sprayed through the water jet pipe 2 to flush out and soften the hard soil layer, thereby successfully completing the piling. It can also be used normally when installing oblique pile supports to assist in the efficient completion of piling.
[0039] Example 2:
[0040] The difference between this embodiment and embodiment 1 is that: four water jet pipes 2 are provided along the length direction of the pile body 1, and the four water jet pipes 2 are symmetrically arranged at the four corners of the pile body 1; four installation grooves 17 are provided corresponding to the four water jet pipes 2, and water expansion sealing rings 3 are installed in each installation groove 17; no water jet pipe 2 and steel bar 16 are provided in the center of the pile body 1, but a steel pipe 12 is pre-buried to form a through hole 18 that runs through the entire pile body 1, and the through hole 18 can be used to discharge mud.
[0041] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. An oblique pile support structure that facilitates penetration of dense soil layers, comprising a pile body (1), characterized in that: A water jet pipeline (2) is provided in the pile body (1), and the water jet pipeline (2) penetrates the entire pile body (1) along the length direction of the pile body (1).
2. The oblique pile support structure for easily penetrating dense soil layers according to claim 1, characterized in that: A conical pointed pile head (15) is provided at one end of the pile body (1); a water jet pipe (2) is provided in the pile body (1); the water jet pipe (2) is provided at the center of the pile body (1) and extends out from the tip of the pointed pile head (15).
3. The oblique pile support structure for penetrating dense soil layers according to claim 1, characterized in that: A plurality of water jet pipes (2) are arranged along the circumference of the pile body (1); and a through hole (18) is provided through the center of the pile body (1).
4. The oblique pile support structure for penetrating dense soil layers according to claim 2 or 3, characterized in that: The pile body (1) is configured into multiple sections, the water jet pipeline (2) is configured into multiple sections corresponding to the pile body (1), and the connecting ends (14) of the two sections of the water jet pipeline (2) are provided with pressure pipeline joints.
5. The oblique pile support structure for penetrating dense soil layers according to claim 4, characterized in that: The pressure pipe joint comprises a water expansion sealing ring (3), and the connection end (14) of the pile body (1) is provided with an installation groove (17) for installing the water expansion sealing ring (3).
6. The oblique pile support structure for easily penetrating dense soil layers according to claim 5, characterized in that: The water expansion sealing ring (3) is clearance-matched with the installation groove (17), and the water expansion sealing ring (3) is plug-fitted with the water jet pipe (2).
7. The oblique pile support structure for penetrating dense soil layers according to claim 4, characterized in that: The pile body (1) comprises a steel pipe (12), a concrete core (11) filled outside the steel pipe (12), and a concrete surface layer (13) covering the outside of the steel pipe (12); one end of the pile body (1) sections connected to each other is provided as a connection end (14) of the steel pipe (12) exposed to the outside.
8. The oblique pile support structure for easily penetrating dense soil layers according to claim 3, characterized in that: The pile body (1) is a rectangular pile, and four water jet pipes (2) are provided and symmetrically arranged at the four corners of the pile body (1).