High-structural-strength composite soft soil stratum tubular pile
By adopting high-structure strength composite soft soil strata pipe pile technology in soft soil strata and using adjustment components to enhance pile side resistance, the problems of cumbersome construction technology and insufficient vertical bearing capacity in the existing technology are solved, and efficient construction and strong support strength are achieved.
Patent Information
- Application Number
- CN202421598397.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-08
AI Technical Summary
When constructing in soft soil strata, the existing pipe pile technology has cumbersome construction technology, which reduces construction efficiency and lacks vertical bearing capacity, making it difficult to meet the needs of ultra-deep foundation pit support.
High-structure strength composite soft soil strata pipe piles are used to directly knock into the foundation pit through the pipe piles composed of pile bodies and pile tips for support. The vertical rods, connecting rods, mounting plates and insert rods in the adjustment component are used to drive the insert rods into the soil outside the pile body, and the resistance on the pile side is enhanced.
The vertical bearing capacity is significantly improved, the support strength of pipe piles is ensured, the structural design is simplified, the convenience and efficiency of construction are improved, and the problem of cumbersome construction technology is solved.
Smart Images
Figure CN222796438U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of civil engineering, and in particular to a high structural strength composite soft soil stratum pipe pile. Background Art
[0002] Pipe piles are tubular piles, usually made of steel pipes, cement pipes, fiberglass pipes and other pipes, with a diameter of more than 30 cm. Pipe piles are a foundation treatment technology that relies on the support of the soil around the pile body and the bending, shear and tensile strength of the pile body itself to transfer loads. Pipe piles have many types, such as steel pipe piles, precast concrete pipe piles and fiberglass piles. In terms of subdivision, pipe piles can be divided into post-tensioned prestressed pipe piles and pre-tensioned prestressed pipe piles, prestressed concrete pipe piles, prestressed concrete thin-walled pipe piles and high-strength prestressed concrete pipe piles.
[0003] Pipe piles are widely used in the development of modern civil engineering because of their large vertical stiffness and bearing capacity, small settlement and ability to withstand certain horizontal loads. However, when constructing pile foundations in soft soil or special soil layers, due to the self-weight consolidation of the soil around the pile body, collapse or lowering of the groundwater level, surface overload and other reasons, the downward displacement of the soil around the pile is often greater than the downward displacement of the pile itself, which causes the friction force acting on the pile body to be downward, becoming a downward pull load acting on the side of the pile, the so-called negative friction.
[0004] At present, bored cast-in-place pile method is usually used for ultra-deep foundation pit support in soft soil strata. A hole is drilled in the stratum and a steel cage is inserted into the hole. Finally, the construction is completed by pouring concrete. However, due to the large diameter of such piles, the corresponding foundation pit support cost is also high. In addition, the construction process includes drilling, tying steel bars, pouring and curing concrete, etc. The construction process is relatively cumbersome, which reduces the construction efficiency. Therefore, a high structural strength composite soft soil stratum pipe pile is proposed to solve the above problems. Utility Model Content
[0005] In response to the shortcomings of the existing technology, the present application provides a high structural strength composite soft soil stratum pipe pile, which has the advantages of improving vertical bearing capacity and convenient construction. It solves the problem that the construction process is currently complicated and the construction efficiency is reduced in ultra-deep foundation pit support in soft soil strata.
[0006] In summary, the present application provides the following technical solutions: a high structural strength composite soft soil stratum pipe pile, comprising a pile body and a pile tip arranged at the lower end of the pile body, wherein an adjustment component is arranged inside the pile body;
[0007] The adjustment assembly includes a vertical rod inserted into the pile body, a connecting rod hinged on the outer wall of the vertical rod, a mounting plate hinged to the other end of the connecting rod, and a plurality of inserting rods fixedly mounted on the outer wall of the mounting plate;
[0008] A guide assembly is provided between the mounting plate and the pile body;
[0009] A pointed cone is arranged at one end of the insertion rod away from the pile body, and a through hole matching the insertion rod is opened on the outer wall of the pile body.
[0010] The present application adopts the above-mentioned technical scheme, and directly hammers the pipe pile composed of the pile body and the pile tip into the foundation pit for support, and then drives the connecting rod to move by hammering the vertical rod in the pile body, so that the connecting rod pushes the mounting plate to move, thereby driving the insertion rod to the outside of the pile body into the soil, which greatly enhances the pile side resistance, greatly improves the vertical bearing capacity, and ensures the supporting strength of the pipe pile. It has a simple structure, is easy to construct, and is highly practical.
[0011] Furthermore, the number of the mounting plates is set to two, and the two mounting plates are symmetrically arranged on the left and right sides of the vertical rod.
[0012] The beneficial effect of adopting the above further solution is that the resistance on both sides of the pile body is guaranteed by the insertion rods on the two mounting plates, thereby improving the supporting stability of the pile body.
[0013] Furthermore, one end of the mounting plate away from the vertical rod is fixedly connected to a spring, and the other end of the spring is fixedly connected to the inner wall of the pile body.
[0014] The beneficial effect of adopting the above further solution is that the arranged spring can provide elastic support to the mounting plate, thereby improving the stability of the structure.
[0015] Furthermore, a sleeve is fixedly installed inside the pile body, the lower end of the vertical rod extends to the inner side of the sleeve, and the inner wall of the sleeve is matched with the outer wall of the vertical rod.
[0016] The beneficial effect of adopting the above further solution is that the vertical rod can be guided by the provided sleeve, so that the vertical rod can maintain stable upward and downward movement.
[0017] Furthermore, the guide assembly comprises a fixed block fixedly mounted inside the pile body and a sliding block fixedly connected to the outside of the mounting plate, and the sliding block is slidably connected to the inner side of the fixed block.
[0018] The beneficial effect of adopting the above further solution is that the mounting plate can be guided by the cooperation of the slider and the fixing block, so that the mounting plate can maintain stable left-right movement.
[0019] Furthermore, the upper end of the vertical rod extends to the upper side of the pile body, and the upper end of the vertical rod is fixedly connected with a knocking plate.
[0020] The beneficial effect of adopting the above further solution is that the knocking plate is provided to facilitate the knocking process on the vertical rod.
[0021] Furthermore, a knocking cover is sleeved on the outer side of the knocking plate, a connecting plate is fixedly connected to the bottom of the knocking cover, and the connecting plate is installed on the upper end of the pile body by screws.
[0022] The beneficial effect of adopting the above further solution is that the knocking cover is provided to facilitate the knocking process on the pile body, avoid the movement of the knocking plate during the knocking process of the pile body, and facilitate the construction.
[0023] Compared with the prior art, the present application provides a high structural strength composite soft soil stratum pipe pile, which has the following beneficial effects:
[0024] The high structural strength composite soft soil stratum pipe pile is directly hammered into the foundation pit for support through the pipe pile composed of a pile body and a pile tip, and then the connecting rod is driven to move by hammering the vertical rod in the pile body, so that the connecting rod pushes the mounting plate to move, thereby driving the insertion rod to enter the soil toward the outside of the pile body, which greatly enhances the pile side resistance, greatly improves the vertical bearing capacity, and ensures the supporting strength of the pipe pile. It has a simple structure, is easy to construct, and is highly practical, and solves the problem of complicated construction process and reduced construction efficiency in the current ultra-deep foundation pit support in soft soil strata. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a cross-sectional view of the structure of this application;
[0026] Figure 2 This application Figure 1 A is a schematic diagram of the enlarged structure shown;
[0027] Figure 3 It is a structural stereogram of the knock cover and the knock plate of the present application.
[0028] Description of reference numerals:
[0029] 1. Pile body; 2. Pile tip; 3. Vertical rod; 4. Connecting rod; 5. Mounting plate; 6. Insert rod; 7. Cone; 8. Spring; 9. Sleeve; 10. Fixed block; 11. Slider; 12. Knocking plate; 13. Knocking cover; 14. Connecting plate. DETAILED DESCRIPTION
[0030] See also Figure 1-3 A high structural strength composite soft soil stratum pipe pile in this embodiment includes a pile body 1 and a pile tip 2 arranged at the lower end of the pile body 1.
[0031] See also Figure 1-2In this embodiment, an adjustment assembly is provided inside the pile body 1, and the adjustment assembly includes a vertical rod 3 inserted into the pile body 1, a connecting rod 4 hinged on the outer wall of the vertical rod 3, a mounting plate 5 hinged to the other end of the connecting rod 4, and a plurality of plugging rods 6 fixedly mounted on the outer wall of the mounting plate 5. Among them, the number of mounting plates 5 is set to two, and the two mounting plates 5 are symmetrically arranged on the left and right sides of the vertical rod 3. The plugging rods 6 on the two mounting plates 5 ensure the resistance on both sides of the pile body 1, thereby improving the supporting stability of the pile body 1.
[0032] It should be added that a spring 8 is fixedly connected to one end of the mounting plate 5 away from the vertical rod 3, and the other end of the spring 8 is fixedly connected to the inner wall of the pile body 1. The spring 8 can provide elastic support for the mounting plate 5, thereby improving the stability of the structure. In addition, a sleeve 9 is fixedly installed inside the pile body 1, and the lower end of the vertical rod 3 extends to the inner side of the sleeve 9. The inner wall of the sleeve 9 is adapted to the outer wall of the vertical rod 3. The sleeve 9 can guide the vertical rod 3 so that the vertical rod 3 can maintain stable up and down movement.
[0033] See also Figure 2 In this embodiment, a guide assembly is provided between the mounting plate 5 and the pile body 1, and the guide assembly includes a fixed block 10 fixedly installed inside the pile body 1 and a slider 11 fixedly connected to the outside of the mounting plate 5. The slider 11 is slidably connected to the inner side of the fixed block 10. Through the cooperation of the slider 11 and the fixed block 10, the mounting plate 5 can be guided so that the mounting plate 5 can maintain stable left and right movement.
[0034] It can be understood that by striking the vertical rod 3 in the pile body 1, the connecting rods 4 on both sides thereof are driven to move, and the connecting rods 4 on both sides respectively push the two mounting plates 5 to move, so that the two mounting plates 5 move away from each other, and drive the slider 11 to move along the inner side of the fixed block 10, thereby driving the insertion rod 6 toward the outside of the pile body 1 into the soil, which greatly enhances the pile side resistance, greatly improves the vertical bearing capacity, and ensures the supporting strength of the pipe pile.
[0035] See also Figure 2 In this embodiment, a pointed cone 7 is provided at one end of the insertion rod 6 away from the pile body 1, and a through hole matching the insertion rod 6 is provided on the outer wall of the pile body 1. The pointed cone 7 facilitates the insertion of the insertion rod 6 into the soil, and the through hole facilitates the movement of the insertion rod 6 to the outside of the pile body 1, which facilitates construction.
[0036] See also Figure 1 and Figure 3In this embodiment, the upper end of the vertical rod 3 extends to the upper side of the pile body 1, and a knocking plate 12 is fixedly connected to the upper end of the vertical rod 3. The knocking plate 12 is provided to facilitate the knocking of the vertical rod 3. At the same time, a knocking cover 13 is provided on the outer side of the knocking plate 12, and a connecting plate 14 is fixedly connected to the bottom of the knocking cover 13. The connecting plate 14 is installed on the upper end of the pile body 1 by screws, which is convenient for installing and disassembling the knocking cover 13. The knocking cover 13 is provided to facilitate the knocking of the pile body 1, and the movement of the knocking plate 12 during the knocking of the pile body 1 is avoided, which facilitates the construction.
[0037] The working principle of the above embodiment is:
[0038] When the present application is in use, the pile body 1 is knocked by the knocking cover 13 and driven into the foundation pit for support. The knocking cover 13 is then removed and the vertical rod 3 is knocked by the knocking plate 12 to make it move along the inner side of the sleeve 9, so that the vertical rod 3 drives the connecting rods 4 on both sides to move. The connecting rods 4 on both sides push the two mounting plates 5 to move respectively, so that the two mounting plates 5 move away from each other, and drive the slider 11 to move along the inner side of the fixed block 10, thereby driving the insertion rod 6 toward the outside of the pile body 1 into the soil, which greatly enhances the pile side resistance, greatly improves the vertical bearing capacity, and ensures the supporting strength of the pipe pile.
Claims
1. A high structural strength composite soft soil stratum pipe pile, comprising a pile body (1) and a pile tip (2) arranged at the lower end of the pile body (1), characterized in that: An adjustment component is arranged inside the pile body (1); The adjustment assembly comprises a vertical rod (3) inserted into the interior of the pile body (1), a connecting rod (4) hinged on the outer wall of the vertical rod (3), a mounting plate (5) hinged to the other end of the connecting rod (4), and a plurality of inserting rods (6) fixedly mounted on the outer wall of the mounting plate (5); A guide assembly is provided between the mounting plate (5) and the pile body (1); A pointed cone (7) is provided at one end of the insertion rod (6) away from the pile body (1), and a through hole matching the insertion rod (6) is provided on the outer wall of the pile body (1).
2. The high structural strength composite soft soil stratum pipe pile according to claim 1, characterized in that: The number of the mounting plates (5) is set to two, and the two mounting plates (5) are symmetrically arranged on the left and right sides of the vertical rod (3).
3. The high structural strength composite soft soil stratum pipe pile according to claim 1, characterized in that: One end of the mounting plate (5) away from the vertical rod (3) is fixedly connected to a spring (8), and the other end of the spring (8) is fixedly connected to the inner wall of the pile body (1).
4. The high structural strength composite soft soil stratum pipe pile according to claim 1, characterized in that: A sleeve (9) is fixedly installed inside the pile body (1), the lower end of the vertical rod (3) extends to the inner side of the sleeve (9), and the inner wall of the sleeve (9) is matched with the outer wall of the vertical rod (3).
5. The high structural strength composite soft soil stratum pipe pile according to claim 1, characterized in that: The guide assembly comprises a fixed block (10) fixedly mounted inside the pile body (1) and a sliding block (11) fixedly connected to the outside of the mounting plate (5), wherein the sliding block (11) is slidably connected to the inside of the fixed block (10).
6. The high structural strength composite soft soil stratum pipe pile according to claim 1, characterized in that: The upper end of the vertical rod (3) extends to the upper side of the pile body (1), and a knocking plate (12) is fixedly connected to the upper end of the vertical rod (3).
7. The high structural strength composite soft soil stratum pipe pile according to claim 6, characterized in that: The knocking plate (12) is sleeved with a knocking cover (13) on its outer side, and a connecting plate (14) is fixedly connected to the bottom of the knocking cover (13), and the connecting plate (14) is mounted on the upper end of the pile body (1) by means of screws.