Highway subgrade anti-settling device

Abstract

The utility model relates to anti -settlement device technical field especially relates to a highway roadbed anti -settlement device. Its technical scheme includes stake basic body, crosspiece, inner stake and clamping rod, stake basic body inside is provided with the through -hole that is longitudinal annular array distribution, the through -hole inside is provided with crosspiece, crosspiece one end is provided with stress block, stake basic body outer wall is provided with the extrusion block that is longitudinal annular array distribution, inner stake inside is provided with reinforced skeleton, crosspiece one end is provided with the taper head, crosspiece outer wall is provided with the locating ring, the locating ring outer wall is provided with outer wall taper surface, the through -hole inner wall is provided with the baffle ring of inner diameter less than the outer diameter of locating ring. The utility model discloses through being provided with multiple groups longitudinal annular array distribution's crosspiece in stake basic body inside, is inserted in the earth inside under the extrusion of inner stake, improves the bearing capacity of stake foundation through increasing the contact area with the ground.

Description

Technical Field

[0001] This utility model relates to the technical field of anti-settlement devices, and in particular to an anti-settlement device for highway subgrade. Background Technology

[0002] Highway subgrade anti-settlement devices are important facilities in civil engineering used to enhance subgrade stability and reduce settlement risks. Their design and application aim to address subgrade settlement problems and improve the service life and safety of roads. Among them, pile foundations are a type of foundation that transfers loads to deep stable soil or rock layers. They have the advantages of high bearing capacity and small settlement. By transferring the subgrade load to deep stable soil layers through the pile body, the subgrade settlement is reduced. In sections with poor geological conditions such as soft soil areas and lake and swamp areas, pile foundations are an effective anti-settlement measure.

[0003] During use, pile foundations are inserted into the ground. Traditional pile foundations mainly rely on the friction or end resistance between the pile body and the foundation soil to bear the load. In some areas with poor geological conditions, such as soft soil areas, it is difficult to meet the requirements of road load. Therefore, we propose a highway subgrade anti-settlement device to solve the existing problems. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a highway subgrade anti-settlement device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a highway subgrade anti-settlement device, comprising a pile base, a crossbar, an inner pile, and a clamping rod. The pile base has through holes arranged in a longitudinal annular array inside, and a crossbar is installed inside the through holes. A force-bearing block is installed at one end of the crossbar. The outer wall of the pile base is provided with compression blocks arranged in a longitudinal annular array. A steel reinforcement skeleton is installed inside the inner pile. A cone is installed at the lower end of the pile base.

[0006] Preferably, one end of the crossbar is provided with a cone, and the outer wall of the crossbar is provided with a positioning ring. The cone reduces friction with the soil and reduces the resistance of the crossbar being inserted laterally into the soil.

[0007] Preferably, the outer wall of the positioning ring is provided with an outer conical surface, and the inner wall of the through hole is provided with a retaining ring with an inner diameter smaller than the outer diameter of the positioning ring. The retaining ring intercepts the positioning ring, preventing the locking rod from completely moving out of the through hole, thus limiting the locking rod. Furthermore, the conical surface of the outer wall of the positioning ring effectively connects with the arc surface of the outer wall of the cone head, preventing the positioning ring from increasing the resistance when the crossbar moves when inserted into the soil.

[0008] Preferably, the outer wall of the pile foundation is provided with cut blocks arranged in a longitudinal ring array, and the opposite ends of the stress blocks and the compression blocks are provided with corresponding inclined surfaces. When the pile foundation moves longitudinally, the cut blocks cut the soil to improve the smoothness of the pile foundation's longitudinal descent, and the inclined surfaces reduce the resistance when the compression blocks compress the stress blocks.

[0009] Preferably, the outer wall of the upper end of the inner pile has an annular groove, and the pile body has symmetrically distributed travel holes inside. A locking rod located inside the annular groove is slidably installed inside the travel holes. The locking rod is slidably supported inside the upper end of the pile body through the travel holes and is positioned by being inserted into the inner pile.

[0010] Preferably, a ball bearing is rotatably mounted inside one end of the clamping rod, and a collar is sleeved on the outer wall of one end of the clamping rod. A spring is provided between the collar and the pile body, sleeved on the outside of the clamping rod. When the inner pile descends, the ball bearing is pressurized to avoid directly squeezing the clamping rod, reducing resistance and friction during passage. The elastic support force of the spring allows the clamping rod to quickly return to its original position after being subjected to force. When the inner pile stops pressurizing the ball bearing, the clamping rod quickly drives the ball bearing into the annular groove.

[0011] Preferably, the inner wall of the pile base has symmetrically distributed grooves, and sliders are slidably installed inside the grooves on both sides of the lower end of the pile base. The inner pile connects to the grooves through the sliders. During longitudinal movement, the inner pile is inserted into the pile base, thereby positioning the pressure block and effectively compressing the stress block.

[0012] Preferably, both the outer wall of the inner pile and the inner wall of the pile foundation have symmetrically distributed slots, and a retaining plate is slidably installed inside the slots. The retaining plate slides inside the slots, increasing the tightness between the inner pile and the pile foundation.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] In this invention, the pile body is inserted into the foundation, and then an inner pile is inserted. During the insertion process, the inner pile gradually applies a compressive force to the crossbar. During the compressive process, the crossbar extends outward, causing the crossbar housed inside the pile body to move laterally and be horizontally inserted into the soil of the foundation, applying a lateral force to the pile body. The horizontal insertion of the crossbar increases the contact area, thereby significantly improving the bearing capacity of the pile foundation and enhancing its stability. Attached Figure Description

[0015] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a top-view three-dimensional structural diagram of the present invention;

[0017] Figure 3 This is a front-view three-dimensional structural diagram of the pile foundation of this utility model;

[0018] Figure 4 This is a front-view three-dimensional structural diagram of the crossbar of this utility model;

[0019] Figure 5 This is a front-view three-dimensional structural diagram of the clamp rod of this utility model.

[0020] Reference numerals in the attached drawings: 1. Pile base; 2. Cutting block; 3. Crossbar; 4. Conical cylinder; 5. Inner pile; 6. Reinforcing steel cage; 7. Positioning ring; 8. Clamping rod; 9. Spring; 10. Conical head; 11. Stroke hole; 12. Conical surface; 13. Through hole; 14. Ring groove; 15. Clamping groove; 16. Collar; 17. Ball bearing; 18. Extrusion block; 19. Force-bearing block; 20. Sliding groove; 21. Retaining ring; 22. Sliding block; 23. Clamping plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-5 As shown, the present invention proposes a highway subgrade anti-settlement device, including a pile base body 1, a crossbar 3, an inner pile 5 and a clamping rod 8. The pile base body 1 has through holes 13 arranged in a longitudinal annular array inside, and a crossbar 3 is installed inside the through holes 13. A force-bearing block 19 is installed at one end of the crossbar 3. An extrusion block 18 arranged in a longitudinal annular array is installed on the outer wall of the pile base body 1. A steel reinforcement skeleton 6 is installed inside the inner pile 5. A cone 4 is installed at the lower end of the pile base body 1.

[0023] A cone head 10 is provided at one end of the crossbar 3, and a positioning ring 7 is provided on the outer wall of the crossbar 3;

[0024] The outer wall of the positioning ring 7 is provided with an outer wall conical surface 12, and the inner wall of the through hole 13 is provided with a retaining ring 21 with an inner diameter smaller than the outer diameter of the positioning ring 7;

[0025] The outer wall of the pile body 1 is provided with cut blocks 2 arranged in a longitudinal ring array, and the stress block 19 and the extrusion block 18 are provided with corresponding inclined surfaces at opposite ends;

[0026] The inner pile 5 has an annular groove 14 on the outer wall at the upper end, and the pile body 1 has symmetrically distributed stroke holes 11 inside. The stroke holes 11 are slidably installed with a clamping rod 8 inside the annular groove 14.

[0027] A ball bearing 17 is rotatably installed inside one end of the clamp rod 8, and a collar 16 is sleeved on the outer wall of one end of the clamp rod 8. A spring 9 is sleeved on the outside of the clamp rod 8 between the collar 16 and the pile body 1.

[0028] The inner wall of the pile foundation body 1 is provided with symmetrically distributed sliding grooves 20, and the lower ends of the pile foundation body 1 are provided with sliders 22 that are slidably installed inside the sliding grooves 20.

[0029] The outer wall of the inner pile 5 and the inner wall of the pile body 1 are both provided with symmetrically distributed slots 15, and a card plate 23 is slidably installed inside the slots 15.

[0030] When using the highway subgrade anti-settlement device, the pile body 1 is first inserted into the foundation. The outer wall of the pile body 1 is provided with cutting blocks 2 arranged in a longitudinal ring array. When the pile body moves longitudinally, the cutting blocks 2 can cut the soil, improve the smoothness of the pile body 1 when it descends longitudinally, and ensure that the pile body 1 is firmly located on the deep stable soil or rock layer. The inner pile 5 is connected to the sliding groove 20 through the slider 22. When moving longitudinally, the inner pile 5 is inserted into the pile body 1, so that the pressure block is positioned and effectively squeezes the force block 19. Then, the inner pile 5 is inserted into the pile body 1. During the insertion process, the force block 19 and the squeezing block 18 are provided with corresponding inclined surfaces at opposite ends, which reduces the resistance when the squeezing block 18 squeezes the force block 19 and gradually applies squeezing force to the crossbar 3.

[0031] After being compressed, the crossbar 3 will extend outward, causing the crossbar 3, which was originally housed inside the pile foundation body 1, to begin to move laterally. One end of the crossbar 3 is provided with a cone head 10. The design of the cone head 10 can reduce friction with the soil and reduce the resistance of the crossbar 3 being inserted laterally into the soil. As the inner pile 5 continues to be inserted, the crossbar 3 gradually inserts horizontally into the soil of the foundation, applying a lateral force to the pile foundation body 1.

[0032] The contact area between the pile foundation and the foundation soil is increased, and a lateral force is applied to the pile foundation body 1 through the horizontal insertion of the crossbar 3, thereby significantly improving the bearing capacity and stability of the pile foundation. The outer wall of the crossbar 3 is provided with a positioning ring 7, and the outer wall of the positioning ring 7 is provided with an outer wall conical surface 12, which is effectively connected with the outer wall arc surface of the cone head 10, further reducing the resistance when the crossbar 3 moves.

[0033] When the inner pile 5 descends, it can avoid directly squeezing the clamping rod 8 by pressing the ball 17, which reduces the resistance and friction during passage. At the same time, the elastic support force of the spring 9 allows the clamping rod 8 to quickly return to its original position after being subjected to force, ensuring that when the inner pile 5 finishes pressing the ball 17, the clamping rod 8 can quickly drive the ball 17 into the annular groove 14 to position the inner pile 5.

[0034] A card plate 23 is slidably installed inside the card slot 15. Cement is then poured into the inner pile 5 and the pile foundation body 1, and the cement covers the reinforcing steel. This highway subgrade anti-settlement device uses the squeezing force of the inner pile 5 on the crossbar 3 to make the crossbar 3 extend outward and move laterally, horizontally inserting it into the soil of the foundation. Applying a lateral force to the pile foundation body 1 not only improves the bearing capacity and stability of the pile foundation, but also solves the problem that traditional pile foundations cannot meet the road load requirements in sections with poor geological conditions such as soft soil areas.

[0035] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A highway subgrade anti-settlement device, comprising a pile base (1), a crossbar (3), an inner pile (5), and a locking rod (8), characterized in that: The pile body (1) has through holes (13) arranged in a longitudinal annular array inside. A crossbar (3) is installed inside the through hole (13). A force-bearing block (19) is installed at one end of the crossbar (3). An extrusion block (18) arranged in a longitudinal annular array is installed on the outer wall of the pile body (1). A steel reinforcement skeleton (6) is installed inside the inner pile (5). A cone (4) is installed at the lower end of the pile body (1).

2. The highway subgrade anti-settlement device according to claim 1, characterized in that: One end of the crossbar (3) is provided with a cone head (10), and the outer wall of the crossbar (3) is provided with a positioning ring (7).

3. The highway subgrade anti-settlement device according to claim 2, characterized in that: The outer wall of the positioning ring (7) is provided with an outer wall conical surface (12), and the inner wall of the through hole (13) is provided with a retaining ring (21) with an inner diameter smaller than the outer diameter of the positioning ring (7).

4. The highway subgrade anti-settlement device according to claim 1, characterized in that: The outer wall of the pile body (1) is provided with cut blocks (2) arranged in a longitudinal ring array, and the force-bearing block (19) and the compression block (18) are provided with corresponding inclined surfaces at opposite ends.

5. A highway subgrade anti-settlement device according to claim 1, characterized in that: The inner pile (5) has an annular groove (14) on its upper outer wall, and the pile body (1) has symmetrically distributed travel holes (11) inside. A clamp (8) located inside the annular groove (14) is slidably installed inside the travel hole (11).

6. A highway subgrade anti-settlement device according to claim 1, characterized in that: A ball bearing (17) is rotatably installed inside one end of the clamp rod (8), and a collar (16) is sleeved on the outer wall of one end of the clamp rod (8). A spring (9) sleeved on the outside of the clamp rod (8) is provided between the collar (16) and the pile body (1).

7. A highway subgrade anti-settlement device according to claim 1, characterized in that: The inner wall of the pile foundation body (1) is provided with symmetrically distributed sliding grooves (20), and the lower ends of the pile foundation body (1) are provided with sliders (22) that are slidably installed inside the sliding grooves (20).

8. A highway subgrade anti-settlement device according to claim 1, characterized in that: The outer wall of the inner pile (5) and the inner wall of the pile body (1) are provided with symmetrically distributed slots (15), and a card plate (23) is slidably installed inside the slot (15).

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