Municipal road cushion structure

Abstract

The utility model discloses a municipal road cushion structure, which relates to the technical field of municipal roads and comprises a concrete mortar surface layer, a steel fiber reinforced concrete layer, a water seepage layer, a rubble layer, a waterproof layer and a soil matrix which are sequentially arranged from top to bottom, and reinforcing bodies with right trapezoid cross sections are arranged on two sides of the steel fiber reinforced concrete layer, the water seepage layer, the rubble layer and the waterproof layer. A drainage pipe is arranged in the reinforcing body, a drainage hole communicated with the drainage pipe is formed in the reinforcing body, a plurality of positioning rods are fixedly connected to the lower end of the reinforcing body and inserted into a soil matrix, and a connecting rod is fixedly connected to the lower end of the inner side face of the reinforcing body. According to the utility model, through the arrangement of the positioning rod and the connecting rod, the relative movement between the two reinforcing bodies can be limited to a certain extent, and the relative movement of the reinforcing bodies relative to a soil matrix can also be limited, so that the road is more stable when being poured.

Description

Technical Field

[0001] This utility model relates to the field of municipal road technology, and more specifically to a municipal road subbase structure. Background Technology

[0002] Municipal road subbase refers to the paving of the road base layer. Most municipal road subbases use permeable pavement made of large stones, allowing rainwater to seep into the base layer through the large pores and joints of the pavement. However, the current municipal road subbase structures on the market still have the following problems.

[0003] For example, Chinese utility model patent application number CN201921630493.1 discloses a municipal road subbase structure, comprising, from top to bottom, a concrete mortar surface layer, a steel fiber reinforced concrete layer, a permeable layer, a crushed stone layer, a waterproof layer, and a soil base. Symmetrically arranged reinforcing bodies are positioned on both sides of the subbase structure. Each reinforcing body has a right-angled trapezoidal cross-section, with its hypotenuse facing inwards. The upper surface of the reinforcing body is attached to the lower surface of the concrete mortar surface layer, and the lower surface is attached to the upper surface of the soil base. Several drainage holes are provided on the inclined surface of the reinforcing body, and a drainage pipe is installed inside the reinforcing body. The drainage pipe connects the steel fiber reinforced concrete layer, the permeable layer, and the crushed stone layer through the drainage holes. While this design allows for rapid drainage of municipal roads, facilitating travel, the reinforcing bodies in this subbase structure may shift during the pouring of the subbase, making it relatively unstable.

[0004] Therefore, it is necessary to propose a subbase structure for municipal roads to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to solve the problem that the solidified material of the existing municipal road subbase structure may move and become unstable during the grouting process.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] A municipal road subbase structure includes, from top to bottom, a concrete mortar surface layer, a steel fiber reinforced concrete layer, a permeable layer, a crushed stone layer, a waterproof layer, and a subgrade. The steel fiber reinforced concrete layer, the permeable layer, the crushed stone layer, and the waterproof layer have reinforced bodies with right-angled trapezoidal cross-sections on both sides. Drainage pipes are provided inside the reinforced bodies, and drainage holes communicating with the drainage pipes are provided on the reinforced bodies. Multiple positioning rods are fixedly connected to the lower end of the reinforced bodies, and the positioning rods are inserted into the subgrade. Connecting rods are fixedly connected to the lower end of the inner surface of the reinforced bodies.

[0008] Furthermore, the cross-section of the middle part of the connecting rod is an isosceles trapezoid.

[0009] Furthermore, a sloping groove is formed at the lower end of the inner side of the solidified body, and the two ends of the connecting rod are inserted into the sloping groove.

[0010] Furthermore, a vertical groove communicating with the inclined groove is provided on the solid at the upper end of the inclined groove, and a vertical insert plate is inserted into the vertical groove, with the lower end of the vertical insert plate fixedly connected to the end of the connecting rod.

[0011] Furthermore, the vertical insert plate has horizontal insertion holes in the middle and on the inner side of the solidified body, and a horizontal insert block is inserted into the horizontal insertion holes.

[0012] Furthermore, the inner surfaces of the horizontal insert and the vertical insert are flush with the inner surfaces of the reinforced solid.

[0013] Furthermore, the crushed stone layer is provided with several permeable blind pipes, and the direction of the permeable blind pipes is parallel to the direction of the solidified material.

[0014] Furthermore, a drainage branch pipe is provided below the permeable blind pipe. The drainage branch pipe is inclined downward from the middle to both sides, and the two ends of the drainage branch pipe are connected to the drainage pipe inside the solidified body on the left and right sides.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model, through the setting of positioning rods and connecting rods, can restrict the relative movement between two reinforced bodies to a certain extent, and can also restrict the relative movement between the reinforced bodies and the soil base, making the road more stable during grouting.

[0017] 2. This utility model, through the setting of vertical insert plate, horizontal insert block and positioning rod, facilitates the fixed installation of the connecting rod. Attached Figure Description

[0018] Figure 1 This is a front view schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a cross-sectional schematic diagram of the connection structure at the connecting rod in this utility model.

[0020] Figure 3 This is a three-dimensional schematic diagram of the connection structure between the solid and the connecting rod in this utility model.

[0021] Figure 4 This is a three-dimensional schematic diagram of the connection structure at the connecting rod in this utility model.

[0022] Figure 5 This is a three-dimensional schematic diagram of the connection structure at the solidified part in this utility model.

[0023] Reference numerals: 1. Concrete mortar surface layer; 2. Steel fiber reinforced concrete layer; 3. Permeable layer; 4. Crushed stone layer; 5. Waterproof layer; 6. Soil base; 7. Reinforced body; 701. Drainage pipe; 702. Drainage hole; 8. Inclined groove; 9. Permeable blind pipe; 10. Drainage branch pipe; 11. Connecting rod; 12. Vertical groove; 13. Vertical insert plate; 14. Horizontal insertion hole; 15. Horizontal insert block; 16. Positioning rod. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1 to 5 A municipal road subbase structure includes, from top to bottom, a concrete mortar surface layer 1, a steel fiber reinforced concrete layer 2, a permeable layer 3, a crushed stone layer 4, a waterproof layer 5, and a subgrade 6. On both sides of the steel fiber reinforced concrete layer 2, the permeable layer 3, the crushed stone layer 4, and the waterproof layer 5, there are reinforcing bodies 7 with a right-angled trapezoidal cross-section. The inclined surface of the reinforcing body 7 faces the road structure. A drainage pipe 701 is provided inside the reinforcing body 7, and a drainage hole 702 communicating with the drainage pipe 701 is provided on the reinforcing body 7. Multiple positioning rods 16 are fixedly connected to the lower end of the reinforcing body 7 and inserted into the subgrade 6. A connecting rod 11 is fixedly connected to the lower end of the inner side of the reinforcing body 7.

[0026] Specifically, to avoid gaps between the crushed stone layer 4 and the connecting rod 11 on both sides when the crushed stone layer 4 is being poured, the connecting rod 11 is configured to have an isosceles trapezoidal cross-section along its width direction, so that it can slide down the inclined surface of the isosceles trapezoid when the crushed stone layer 4 is being poured, thereby reducing gaps.

[0027] Specifically, in order to facilitate the quick and easy installation of the connecting rod 11, a sloping groove 8 is provided at the lower end of the inner side of the solidified body 7. The two ends of the connecting rod 11 are also matched with the sloping groove 8 and set as sloping surfaces. The cross-section along the length of the connecting rod 11 is an inverted isosceles trapezoid. The two ends of the connecting rod 11 are inserted into the sloping groove 8, which can further prevent the connecting rod 11 from moving downward.

[0028] A vertical groove 12 communicating with the inclined groove 8 is provided on the solid 7 at the upper end of the inclined groove 8. A vertical insert plate 13 is inserted into the vertical groove 12. The lower end of the vertical insert plate 13 is fixedly connected to the end of the connecting rod 11. Through this setting, the horizontal movement of the connecting rod 11 can be restricted on the horizontal plane.

[0029] The vertical insert plate 13 has a horizontal insertion hole 14 in the middle and the inner side of the solid 7. A horizontal insert block 15 is inserted into the horizontal insertion hole 14 to prevent the connecting rod 11 from moving up and down, thereby making the distance between the two solids 7 relatively fixed and facilitating stability during injection.

[0030] Specifically, in order to further prevent gaps between the crushed stone layer 4 and the two sides of the connecting rod 11 during the injection of the crushed stone layer 4, the inner sides of the horizontal insert 15 and the vertical insert 13 are flush with the inner side of the solidified body 7.

[0031] Specifically, the crushed stone layer 4 is provided with several permeable blind pipes 9, and the direction of the permeable blind pipes 9 is parallel to the direction of the solidified material layer 7.

[0032] Specifically, a drainage branch pipe 10 is provided below the permeable blind pipe 9. The drainage branch pipe 10 is set at an angle from the middle to both sides downward. The two ends of the drainage branch pipe 10 are connected to the drainage pipes 701 inside the solidified material 7 on the left and right sides, so that the water in the middle of the crushed stone layer 4 can also be quickly drained away from the permeable blind pipe 9, thereby improving the drainage efficiency.

[0033] In addition to the technical solutions described in this application, existing technologies may be consulted for structures such as connecting parts between the concrete mortar surface layer 1 and the steel fiber reinforced concrete layer 2, but this will not affect the innovativeness of the overall solution of this application or the technical problem to be solved.

[0034] For clarity, this application Figures 3 to 5 The three-dimensional structure in the text is only the structure of 7 solidified sections in a small section of the municipal road.

[0035] Working Principle: During rainfall, rainwater sequentially passes through the concrete mortar surface layer 1, the steel fiber reinforced concrete layer 2, and the permeable layer 3, finally reaching the crushed stone layer 4. A waterproof layer 5 is installed between the crushed stone layer 4 and the soil base 6, effectively preventing further downward penetration of water. To enhance the lateral stability of the subbase structure and prevent water from spreading outwards, reinforcing bodies 7 are added to both sides of the subbase. These reinforcing bodies 7, with their beveled design, not only ensure the lateral stability of the subbase structure but also prevent internal water from seeping outwards laterally. Furthermore, the reinforcing bodies 7 are equipped with drainage holes 702, which guide water from the subbase to the internal drainage pipes 701, thereby achieving rapid drainage and improving the overall drainage efficiency and stability of the system.

[0036] This design not only enhances the overall stability and durability of the municipal road subbase structure but also effectively manages moisture flow, preventing damage to the road foundation caused by excessive moisture accumulation. This ensures road safety and service life while optimizing drainage performance and improving the overall quality of the project.

[0037] The above are merely preferred embodiments of this utility model and are not intended to limit this utility model. The scope of patent protection of this utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of this utility model shall also be included within the scope of protection of this utility model.

Claims

1. A municipal road subbase structure, comprising, from top to bottom, a concrete mortar surface layer, a steel fiber reinforced concrete layer, a permeable layer, a crushed stone layer, a waterproof layer, and a soil base, wherein the steel fiber reinforced concrete layer, the permeable layer, the crushed stone layer, and the waterproof layer are provided with reinforced bodies on both sides having a cross-section of a right-angled trapezoid, the reinforced bodies having drainage pipes inside, and the reinforced bodies having drainage holes communicating with the drainage pipes, characterized in that: Multiple positioning rods are fixedly connected to the lower end of the reinforced body, and the positioning rods are inserted into the soil foundation. A connecting rod is fixedly connected to the lower end of the inner side of the reinforced body.

2. The municipal road subbase structure according to claim 1, characterized in that: The cross-section of the middle part of the connecting rod is an isosceles trapezoid.

3. The municipal road subbase structure according to claim 1, characterized in that: The lower end of the inner side of the reinforced body is provided with a sloping groove, and the two ends of the connecting rod are inserted into the sloping groove.

4. A municipal road subbase structure according to claim 3, characterized in that: A vertical groove communicating with the inclined groove is provided on the solid body at the upper end of the inclined groove. A vertical insert plate is inserted into the vertical groove, and the lower end of the vertical insert plate is fixedly connected to the end of the connecting rod.

5. A municipal road subbase structure according to claim 4, characterized in that: The vertical insert plate has horizontal insertion holes in the middle and on the inner side of the solidified body, and a horizontal insert block is inserted into the horizontal insertion hole.

6. A municipal road subbase structure according to claim 5, characterized in that: The inner surfaces of the horizontal insert and the vertical insert are flush with the inner surfaces of the solidified body.

7. A municipal road subbase structure according to claim 1, characterized in that: The crushed stone layer is provided with several permeable blind pipes, and the direction of the permeable blind pipes is parallel to the direction of the solidified material.

8. A municipal road subbase structure according to claim 7, characterized in that: A drainage branch pipe is provided below the permeable blind pipe. The drainage branch pipe is inclined downward from the middle to both sides. The two ends of the drainage branch pipe are connected to the drainage pipe inside the solidified body on the left and right sides.

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