Highway side slope support system and construction method

Abstract

A highway slope supporting system comprises a supporting frame and supporting piles, the supporting piles pass through the supporting frame and extend into a highway subgrade, the supporting piles are hollow pile structures, the tail ends of the supporting piles are open ends, and a top pile is arranged in each supporting pile; a movable top block is arranged on the side wall of each supporting pile, and the top block is pushed out along the radial direction of the supporting pile and inserted into the subgrade soil when the top pile is inserted into the supporting pile; horizontal extension plates are arranged at the bottom of the supporting frame, the horizontal extension plates are multiple, a transverse bracing mechanism is arranged between two adjacent horizontal extension plates, and the transverse bracing mechanism applies an external force horizontally towards the highway subgrade to the supporting frame. The above structure can strengthen the stability of the highway subgrade supporting system and avoid loosening of the supporting system caused by external factors.

Description

Technical Field

[0001] This invention relates to the field of road construction technology, specifically a highway slope protection system and construction method. Background Technology

[0002] When a roadbed is subjected to the pressure of vehicles on the road surface, the road surface will move to both sides. Furthermore, the sides of the roadbed are prone to collapse due to rainwater impact and vibration. Therefore, it is necessary to install slope support structures on both sides of the roadbed. However, the current slope support structures are not stable enough. Under the vibration generated by long-term vehicle traffic, the support system is still prone to loosening, resulting in the aforementioned instability of the roadbed structure. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a highway slope protection system and construction method, which can effectively solve the problems in the background art, enhance the stability of the highway subgrade support system, and avoid the loosening of the support system caused by external factors.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a highway slope protection system, including a support frame and support piles, the support piles passing through the support frame and extending into the highway subgrade, the support piles are hollow piles with open ends, and a top pile is provided inside the support piles. The side wall of the support pile is provided with a movable top block. When the top pile is inserted into the support pile, the top block is pushed outward along the radial direction of the support pile and inserted into the roadbed soil. The bottom of the support frame is provided with a horizontal extension plate, which consists of multiple horizontal extension plates. A transverse support mechanism is provided between two adjacent horizontal extension plates. The transverse support mechanism applies a horizontal external force to the support frame toward the roadbed.

[0005] In a preferred embodiment, a limiting groove is provided on the inner and outer sides of the support pile wall through which the movable top block passes, and a limiting plate matching the limiting groove is provided on the upper and lower ends of the main body of the movable top block.

[0006] In a preferred embodiment, the side of the horizontal extension plate is provided with a connecting groove, which includes a horizontal groove section and a vertical groove section; The lateral support mechanism includes a base plate, and a protrusion is provided on the side of the base plate. The protrusion cooperates with the connecting groove to fix the lateral support mechanism on the horizontal extension plate.

[0007] In a preferred embodiment, a side groove is provided on the side wall of the horizontal groove section, a horizontal guide rod is provided in the side groove, and extension plate sections located in the side groove are provided on both sides of the push plate. A spring is sleeved on the guide rod between the extension plate section of the push plate and the end of the horizontal groove section away from the vertical groove section.

[0008] In a preferred embodiment, multiple oblique cone rods are obliquely inserted into the base plate, and the oblique cone rods are inclined in the same direction as the roadside slope.

[0009] In a preferred embodiment, the end of the movable top block is provided with a cone.

[0010] In a preferred embodiment, multiple plastic sheets are provided on the outer wall of the support pile through which the movable top block passes, and the multiple plastic sheets are arranged radially in a circumferential direction; When the movable top block is pushed out, multiple plastic sheets are pushed into the roadbed in an explosive manner from the center outward.

[0011] The construction method based on the above-mentioned highway slope protection system includes the following steps: 1) Install a support frame at the roadbed slope; 2) Install the base plate on the horizontal extension plate at the bottom of the support frame; 3) Horizontally push the base plate towards the support frame and compress the spring; 4) Insert a tapered rod at an angle onto the substrate down to below ground level; 5) Release the push plate so that the spring applies a horizontal pushing force to the plate; 6) Install support piles on the support frame so that the support piles are driven into the roadbed below the highway; 7) Drive the top pile into the open end of the support pile, so that the top pile pushes out the movable top block on the outer wall of the support pile and inserts it into the subgrade soil.

[0012] In the preferred embodiment, the support pile and the top pile are threaded together, and the top pile rotates synchronously during the driving of the top pile into the support pile to ensure the stability of the top pile after it is driven into the support pile.

[0013] In a preferred embodiment, one end of the top pile driven into the support pile is a variable diameter end, the minimum diameter of which is smaller than the length of the movable top block.

[0014] The highway slope protection system and construction method provided by this invention have the following beneficial effects by adopting the above-mentioned structure and method: (1) The movable top block set on the support pile is in a retracted state during the process of driving the support pile into the roadbed. At this time, it can avoid the resistance caused during the driving process, realize the smooth driving of the support pile into the roadbed, and when the top pile is driven in the subsequent process, the movable top block is pushed out and inserted into the soil, so that the entire support system can form a stable connection with the roadbed soil, ensure the stability of the entire system during use, and reduce the probability of the support system being loosened by vehicle vibration. (2) The set horizontal support mechanism realizes the horizontal support of the entire support frame, and in conjunction with the inclined cone rod, the support system can always fit the slope and provide effective support for the slope. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a cross-sectional structural diagram of the present invention.

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

[0017] Figure 3 This is a schematic diagram of the structure of the movable top block with a cone head in the retracted state in this invention.

[0018] Figure 4 This is a schematic diagram of the structure of the movable top block with a cone head in the extended state in this invention.

[0019] Figure 5 This is a schematic diagram of the plastic sheet structure in the retracted state of the movable top block in this invention.

[0020] Figure 6 This is a schematic diagram of the plastic sheet structure in the extended state of the movable top block in this invention.

[0021] In the diagram: 1. Support frame; 2. Support pile; 3. Top pile; 4. Horizontal support mechanism; 5. Movable top block; 6. Cone head; 7. Limiting groove; 8. Limiting plate; 9. Horizontal extension plate; 10. Base plate; 10. Protrusion; 1001. Inclined cone rod; 11. Connecting groove; 12. Horizontal groove section; 121. Vertical groove section; 122. Side groove; 13. Guide rod; 14. Spring; 15. Push plate; 16. Plastic sheet; 17. Detailed Implementation

[0022] Example 1: like Figure 1-2 In the present invention, a highway slope protection system includes a support frame 1 and a support pile 2. The support pile 2 passes through the support frame 1 and extends into the highway subgrade. The support pile 2 is a hollow pile structure with an open end at its tail end. A top pile 3 is provided inside the support pile 2. The side wall of the support pile 2 is provided with a movable top block 5. When the top pile 3 is inserted into the support pile 2, the top block 5 is pushed out radially outward along the support pile 2 and inserted into the roadbed soil. The bottom of the support frame 1 is provided with a horizontal extension plate 9, which consists of multiple horizontal extension plates 9. A transverse support mechanism 4 is provided between two adjacent horizontal extension plates 9. The transverse support mechanism 4 applies a horizontal external force to the support frame 1 toward the roadbed.

[0023] In a preferred embodiment, a limiting groove 7 is provided on the inner and outer sides of the support pile 2 through which the movable top block 5 passes, and a limiting plate 8 matching the limiting groove 7 is provided on the upper and lower ends of the main body of the movable top block 5.

[0024] In a preferred embodiment, the side of the horizontal extension plate 9 is provided with a connecting groove 12, which includes a horizontal groove section 121 and a vertical groove section 122. The lateral support mechanism 4 includes a base plate 10, and a protrusion 1001 is provided on the side of the base plate 10. The protrusion 1001 cooperates with the connecting groove 12 to fix the lateral support mechanism 4 on the horizontal extension plate 9.

[0025] In a preferred embodiment, a side groove 13 is provided on the side wall of the horizontal groove section 121, and a horizontal guide rod 14 is provided in the side groove 13. Extension plate sections located in the side groove 13 are provided on both sides of the push plate 16. A spring 15 is sleeved on the guide rod 14 between the extension plate section of the push plate 16 and the end of the horizontal groove section 121 away from the vertical groove section 122.

[0026] In a preferred embodiment, multiple oblique cone rods 11 are obliquely inserted into the base plate 10, and the oblique cone rods 11 are inclined in the same direction as the roadside slope.

[0027] Example 2: like Figure 3-4 Based on embodiment 1, the end of the movable top block 5 is provided with a cone head.

[0028] When the movable top block 5 structure described in this example is adopted, the process of driving the top pile 3 into the support pile 2 and pushing out the movable top block 5 is made easier, avoiding the situation where the top pile 3 is blocked by hard objects such as gravel in the soil and cannot be driven into the support pile 2, thus improving construction efficiency and ensuring the stability of the support frame 1 in the subgrade.

[0029] Example 3: like Figure 5-6 Based on embodiment 1, multiple plastic sheets 17 are provided on the outer wall of the support pile 2 through which the movable top block 5 passes, and the multiple plastic sheets 17 are arranged radially in the circumferential direction. When the movable top block 5 is pushed out, multiple plastic sheets 17 are pushed into the roadbed in an explosive manner from the center outward.

[0030] When the active top block 5 structure described in this example is used, the plastic sheet 17 can be blown out and inserted into the soil in an explosive state during the process of driving the top pile 3 into the support pile 2. Compared with embodiment 2, this structure reduces the resistance to driving the support pile 2 on the one hand, and achieves a more stable connection between the support frame 1 and the subgrade soil on the other hand, thus improving the support effect.

[0031] Example 4: Based on Example 1, the construction method of the highway slope protection system includes the following steps: 1) Install a support frame 1 at the roadbed slope; 2) Install base plate 10 on the horizontal extension plate 9 at the bottom of the support frame 1; 3) The horizontal push base plate 10 moves towards the support frame 1 and compresses the spring 15; 4) An inclined cone rod 11 is inserted obliquely into the base plate 10 to below the ground; 5) Release the push plate 10 so that the spring 15 applies a horizontal pushing force to the plate 10; 6) Install support piles 2 on the support frame 1, so that the support piles 2 are driven into the roadbed below the highway; 7) Drive the top pile 3 into the open end of the support pile 2, so that the top pile 3 pushes out the movable top block 5 on the outer wall of the support pile 2 and inserts it into the subgrade soil.

[0032] In the preferred embodiment, the support pile 2 and the top pile 3 are threaded together, and the top pile 3 rotates synchronously during the process of driving the top pile 3 into the support pile 2, so as to ensure the stability of the top pile 3 after it is driven into the support pile 2.

[0033] In the preferred embodiment, one end of the top pile 3 driven into the support pile 2 is a variable diameter end, and its minimum diameter is less than the length of the movable top block 5.

[0034] The highway slope protection system and construction method disclosed in this invention ensure the stability of the highway slope protection system. When subjected to vibrations generated by vehicle traffic, it can ensure that the support frame 1 always forms a stable connection with the subgrade soil, avoiding loosening of the support system and providing favorable conditions for the normal operation and traffic flow of the highway.

Claims

1. A highway slope protection system, characterized in that: It includes a support frame (1) and support piles (2). The support piles (2) pass through the support frame (1) and extend into the roadbed. The support piles (2) are hollow piles with open ends. A top pile (3) is inserted inside the support piles (2). The side wall of the support pile (2) is provided with a movable top block (5). When the top pile (3) is inserted into the support pile (2), the top block (5) is pushed outward along the radial direction of the support pile (2) and inserted into the subgrade soil. The support frame (1) is provided with a horizontal extension plate (9) at the bottom. There are multiple horizontal extension plates (9). A transverse top support mechanism (4) is provided between two adjacent horizontal extension plates (9). The transverse top support mechanism (4) applies a horizontal external force to the support frame (1) towards the roadbed. The side of the horizontal extension plate (9) is provided with a connecting groove (12), which is L-shaped and includes a horizontal groove section (121) and a vertical groove section (122). The lateral support mechanism (4) includes a base plate (10), and a protrusion (1001) is provided on the side of the base plate (10). The protrusion (1001) cooperates with the connecting groove (12) to fix the lateral support mechanism (4) on the horizontal extension plate (9). The horizontal groove section (121) has a side groove (13) on its side wall. A horizontal guide rod (14) is provided in the side groove (13). The push plate (16) has extension plate sections located in the side groove (13) on both sides. A spring (15) is sleeved on the guide rod (14) between the extension plate section of the push plate (16) and the end of the horizontal groove section (121) away from the vertical groove section (122). During installation, the horizontal push plate (10) is moved towards the support frame (1) and the spring (15) is compressed.

2. The highway slope protection system according to claim 1, characterized in that: The movable top block (5) passes through a limiting groove (7) on the inner and outer sides of the support pile (2) wall. The upper and lower ends of the main body of the movable top block (5) are respectively provided with a limiting plate (8) that matches the limiting groove (7).

3. The highway slope protection system according to claim 1, characterized in that: Multiple oblique cone rods (11) are obliquely inserted on the base plate (10), and the oblique cone rods (11) are inclined in the same direction as the roadside slope.

4. A highway slope protection system according to claim 1, characterized in that: The movable top block (5) has a cone head at its end.

5. A highway slope protection system according to claim 1, characterized in that: Multiple plastic sheets (17) are provided on the outer wall of the support pile (2) through which the movable top block (5) passes, and the multiple plastic sheets (17) are arranged radially in the circumferential direction; When the active top block (5) is pushed out, multiple plastic pieces (17) are pushed into the roadbed in an explosive manner from the center outward.

6. A construction method for a highway slope protection system according to any one of claims 1-5, characterized in that... Includes the following steps: 1) Install a support frame at the roadbed slope (1); 2) Install a base plate (10) on the horizontal extension plate (9) at the bottom of the support frame (1). 3) An obliquely tapered rod (11) is inserted obliquely into the base plate (10) to below the ground; 4) Release the push plate (10) so that the spring (15) applies a horizontal pushing force to the plate (10); 5) Install support piles (2) on the support frame (1) so that the support piles (2) are driven into the roadbed below the highway; 6) Drive the top pile (3) into the open end of the support pile (2) so that the top pile (3) pushes out the movable top block (5) on the outer wall of the support pile (2) and inserts it into the subgrade soil.

7. The construction method of a highway slope protection system according to claim 6, characterized in that: The support pile (2) and the top pile (3) are threaded together. The top pile (3) rotates synchronously during the process of driving the top pile (3) into the support pile (2) to ensure the stability of the top pile (3) after it is driven into the support pile (2).

8. The construction method of a highway slope protection system according to claim 6, characterized in that: The top pile (3) is driven into the support pile (2) at one end, which is a variable diameter end, and its minimum diameter is less than the length of the movable top block (5).

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