Durable soil and stone mixed filling road subgrade structure

Abstract

The utility model discloses a durable earth-rock mixed filling road subgrade structure which comprises an earth-rock subgrade, a supporting layer is installed below the earth-rock subgrade, a limiting block is fixedly installed on the outer wall of the supporting layer, a limiting groove and a sliding groove are formed in the supporting layer, a through hole is formed in the supporting layer, and a limiting layer is installed at the end of the supporting layer in a sliding mode. And supporting blocks are fixedly installed on the outer walls of the limiting layers, multiple sets of through holes are formed in the supporting layers at equal intervals, and the through holes penetrate through the supporting layers. The supporting layers and the limiting layers are arranged, the multiple sets of supporting layers are assembled according to the road length requirement, the limiting layers are installed at the two ends of the multiple sets of supporting layers, and therefore the inverted-trapezoidal container is formed, the earth-rock roadbed is filled in the container, and when continuous rainwater weather occurs, the earth-rock roadbed is prevented from being damaged. The container supports and limits the earth-rock roadbed, so that the earth-rock roadbed is effectively prevented from becoming loose and collapsing, meanwhile, rainwater can be discharged through the through holes, and the earth-rock roadbed is further protected.

Description

Technical Field

[0001] The utility model relates to the field of roadbed structures, in particular to a durable soil-rock mixed-fill roadbed structure. Background Art

[0002] As a key component of transportation infrastructure, the stability and durability of the roadbed are directly related to the operational safety and efficiency of the entire transportation system. It not only requires sufficient strength to support and transmit various complex loads, but also requires good drainage performance and appropriate deformation characteristics to ensure that it can maintain a stable form and function under extreme weather or long-term operating conditions. During the design and construction process, the roadbed project needs to comprehensively consider factors such as geological conditions, hydrological environment, climatic conditions, and traffic volume growth. For different geological conditions, special treatment measures may be required, such as replacement, reinforcement, or the use of new materials to improve the bearing capacity of the roadbed. At the same time, the reasonable setting of the drainage system to ensure that the roadbed is not damaged by water is also an important means to ensure the stability of the roadbed. In short, as an important part of transportation infrastructure construction, the importance of roadbed engineering is self-evident.

[0003] As the cornerstone of transportation infrastructure, roadbeds are of various types to adapt to different geological conditions and engineering needs. Roadbeds can be divided into earth roadbeds, stone-filled roadbeds and earth-rock mixed roadbeds according to the different filling materials inside. The earth-rock filled roadbed with stone content accounting for 30%-70% of the total mass and soil content of 0%-30% is called earth-rock mixed roadbed. As a transition type between earth roadbed and stone-filled roadbed, the earth-rock mixed roadbed has a series of advantages due to its unique combination of filling materials. The earth and stone materials in this roadbed can form a compact and stable structure through reasonable grading design, which not only exerts the compressive strength of stone, but also utilizes the adhesion and plasticity of soil, thereby improving the overall performance of the roadbed. The earth-rock mixed roadbed can make full use of local natural resources, reduce dependence on a single material, reduce material costs, and at the same time reduce the mining and transportation of stone, which is beneficial to environmental protection.

[0004] However, the above-mentioned roadbed structure still has certain problems. For example, when encountering continuous rainfall, rainwater will not only increase the water content of the soil, reduce its internal friction angle and shear strength, but also gradually erode the fine particles inside the roadbed through infiltration, causing the soil and rock structure to become loose. The loose roadbed is very likely to collapse when encountering heavy rainfall or water erosion, which will in turn block road traffic and may even cause natural disasters such as landslides and mud-rock flows, posing a serious threat to the lives and property of surrounding residents. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a durable soil-rock mixed roadbed structure to solve the technical problems mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a durable earth-rock mixed roadbed structure, including an earth-rock roadbed, a supporting layer installed under the earth-rock roadbed, a limiting block fixedly installed on the outer wall of the supporting layer, and a limiting groove and a sliding groove are provided in the supporting layer, and a through hole is provided in the supporting layer, the limiting layer is slidably installed at the end of the supporting layer, and a support block is fixedly installed on the outer wall of the limiting layer.

[0007] By adopting the above technical solution, multiple groups of support layers are assembled according to the length of the road and limiting layers are installed at both ends of the multiple groups of support layers, thereby forming an inverted trapezoidal container, and the earth-rock roadbed is filled in the container. When encountering continuous rainy weather, the container supports and limits the earth-rock roadbed, thereby effectively preventing the earth-rock roadbed from becoming loose and collapsing. At the same time, rainwater can be discharged through the through holes to further protect the earth-rock roadbed.

[0008] Furthermore, a plurality of groups of through holes are provided in the support layer at equal intervals, and the through holes penetrate the support layer.

[0009] By adopting the above technical solution, rainwater can be discharged from the container through the through holes, thereby protecting the earth and stone roadbed.

[0010] Furthermore, the limit blocks are designed to be T-shaped, and multiple groups of limit blocks are symmetrically installed at both ends of the support layer.

[0011] By adopting the above technical solution, when multiple groups of supporting layers are spliced, the limiting blocks can effectively play a limiting effect, and the limiting and fixing effect of the limiting blocks is further enhanced.

[0012] Furthermore, the limiting groove corresponds to the limiting block, and the limiting groove is arranged on the other side of the supporting layer where the limiting block is installed, and the limiting groove passes through the outer wall of the supporting layer.

[0013] By adopting the above technical solution, the support layer can be butted against each other through the limit grooves and the limit blocks, so that the expansion of the road length by the support layer is more flexible.

[0014] Furthermore, the limiting layer is designed to be an inclined rectangle, and the limiting layer is symmetrically installed at both ends of the supporting layer, and the limiting layer corresponds to the slide groove.

[0015] By adopting the above technical solution, after the limiting layer is installed at both ends of the supporting layer, an inverted trapezoidal container is formed, which can effectively prevent the soil and rock roadbed in the container from loosening and collapsing.

[0016] Furthermore, the support block is designed to be triangular, and after the limiting layer is installed, the outer wall of the support block fits with the top outer wall of the support layer.

[0017] By adopting the above technical solution, the support block can provide support for the limiting layer, making the limiting layer more firm.

[0018] In summary, the utility model mainly has the following beneficial effects:

[0019] The utility model is provided with a supporting layer and a limiting layer, and multiple groups of supporting layers are assembled according to the length of the road and the limiting layers are installed at both ends of the multiple groups of supporting layers, so as to form an inverted trapezoidal container, and the earth and stone roadbed is filled in the container. When encountering continuous rainy weather, the container supports and limits the earth and stone roadbed, thereby effectively preventing the earth and stone roadbed from becoming loose and collapsing. At the same time, rainwater can be discharged through the through holes, so as to further protect the earth and stone roadbed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the support layer of the utility model;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the limiting layer of the utility model;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the utility model after assembly.

[0025] In the figure: 1, supporting layer; 101, limiting block; 102, limiting groove; 103, through hole; 104, slide groove; 2, limiting layer; 201, supporting block; 3, soil and stone roadbed. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0027] The following describes an embodiment of the utility model based on its overall structure.

[0028] A durable soil-rock mixed roadbed structure, such as Figure 1 - Figure 5As shown, it includes an earth-rock roadbed 3, a supporting layer 1 is installed below the earth-rock roadbed 3, a limiting block 101 is fixedly installed on the outer wall of the supporting layer 1, the limiting block 101 is T-shaped, and a limiting groove 102 and a slide groove 104 are provided in the supporting layer 1, the limiting groove 102 corresponds to the limiting block 101, the slide groove 104 is an inclined rectangular design, and a through hole 103 is provided in the supporting layer 1, the through hole 103 passes through the limiting block 101, a limiting layer 2 is slidably installed at the end of the supporting layer 1, the limiting layer 2 corresponds to the shape of the slide groove 104, a supporting block 201 is fixedly installed on the outer wall of the limiting layer 2, and the support block 201 is triangular in design.

[0029] See also Figure 2 , Figure 3 and Figure 5 A plurality of through holes 103 are provided at equal intervals in the support layer 1 , and the through holes 103 penetrate the support layer 1 , and rainwater can be discharged into the container through the through holes 103 , thereby protecting the soil-rock roadbed 3 .

[0030] See also Figure 1 , Figure 2 , Figure 3 and Figure 5 The limit block 101 is designed in a T shape. When multiple groups of support layers 1 are spliced, the limit block 101 can effectively play a limiting effect, and multiple groups of limit blocks 101 are symmetrically installed at both ends of the support layer 1, which further enhances the limiting and fixing effect of the limit block 101.

[0031] See also Figure 2 , Figure 3 and Figure 5 The limiting groove 102 corresponds to the limiting block 101, and the limiting groove 102 is opened on the other side of the supporting layer 1 where the limiting block 101 is installed, and the limiting groove 102 passes through the outer wall of the supporting layer 1, so that the supporting layer 1 can be connected with the limiting block 101 through the limiting groove 102, making the expansion of the road length of the supporting layer 1 more flexible.

[0032] See also Figure 1 , Figure 2 , Figure 4 and Figure 5 The limiting layer 2 is designed as an inclined rectangle, and the limiting layer 2 is symmetrically installed at both ends of the supporting layer 1, and the limiting layer 2 corresponds to the slide groove 104, so that after the limiting layer 2 is installed at both ends of the supporting layer 1, an inverted trapezoidal container is formed, which can effectively prevent the loose collapse of the soil and stone roadbed 3 in the container.

[0033] See also Figure 1 and Figure 4The support block 201 is triangular in design, and after the limiting layer 2 is installed, the outer wall of the support block 201 fits with the top outer wall of the support layer 1, so that the support block 201 can provide support for the limiting layer 2, making the limiting layer 2 more firm.

[0034] The working principle of the utility model is as follows: when it is necessary to lay the roadbed, a pit is dug in advance on the road surface according to the needs, because a limiting block 101 is installed on one side of the support layer 1, and a limiting groove 102 corresponding to the limiting block 101 is opened on the other side of the support layer 1, the support layer 1 is spliced ​​and laid in the pit, because the support layer 1 is opened with a slide groove 104 corresponding to the limiting layer 2, the limiting layer 2 is installed at both ends of the support layer 1, and because the outer wall of the support layer 1 is fixedly installed with a support block 201, at this time, the support layers 1 are arranged between the support layers 1. They support and limit each other, and at the same time, the limiting layer 2 is fixed and supported, and the support block 201 also supports the limiting layer 2, and the earth-stone roadbed 3 is laid in the container formed by the supporting layer 1 and the limiting layer 2 and compacted, so that when encountering continuous rainy weather, the supporting layer 1 and the limiting layer 2 support and limit the earth-stone roadbed, thereby effectively preventing the earth-stone roadbed 3 from becoming loose and collapsing. Because there are multiple groups of through holes 103 in the supporting layer 1, rainwater can be discharged through the through holes 103, further protecting the earth-stone roadbed.

[0035] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A durable soil-rock mixed roadbed structure, comprising a soil-rock roadbed (3), characterized in that: A support layer (1) is installed below the soil-rock roadbed (3), a limit block (101) is fixedly installed on the outer wall of the support layer (1), a limit groove (102) and a slide groove (104) are provided in the support layer (1), and a through hole (103) is provided in the support layer (1), a limit layer (2) is slidably installed at the end of the support layer (1), and a support block (201) is fixedly installed on the outer wall of the limit layer (2).

2. A durable soil-rock mixed roadbed structure according to claim 1, characterized in that: A plurality of groups of through holes (103) are provided at equal intervals in the support layer (1), and the through holes (103) penetrate the support layer (1).

3. The durable soil-rock mixed roadbed structure according to claim 1, characterized in that: The limit blocks (101) are designed to be T-shaped, and multiple groups of limit blocks (101) are symmetrically installed at both ends of the support layer (1).

4. The durable soil-rock mixed roadbed structure according to claim 1, characterized in that: The limiting groove (102) corresponds to the limiting block (101), and the limiting groove (102) is provided on the other side of the supporting layer (1) where the limiting block (101) is installed, and the limiting groove (102) passes through the outer wall of the supporting layer (1).

5. The durable soil-rock mixed roadbed structure according to claim 1, characterized in that: The limiting layer (2) is designed to be an inclined rectangle, and the limiting layer (2) is symmetrically installed at both ends of the supporting layer (1), and the limiting layer (2) corresponds to the sliding groove (104).

6. The durable soil-rock mixed roadbed structure according to claim 1, characterized in that: The support block (201) is designed to be triangular, and after the limiting layer (2) is installed, the outer wall of the support block (201) fits with the outer wall of the top end of the support layer (1).

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