Roadbed base drainage structure

Abstract

The roadbed base drainage structure comprises a gravel edge covering layer, a sand cushion layer, a roadbed and a pavement structure layer which are sequentially laid from bottom to top, and the gravel edge covering layer is laid along side slopes and extends out of slope toes of the side slopes on the two sides; first synthetic resin porous hard pipes are embedded in the sand cushion layer, and second synthetic resin porous hard pipes which are in one-to-one correspondence with the first synthetic resin porous hard pipes and are communicated with the first synthetic resin porous hard pipes are embedded in the gravel edge covering layers on the side slopes on the two sides. The structure is economical and simple in construction process, the overall stability of the roadbed can be effectively improved, and the diseases such as frost boiling and mud rising of the roadbed are reduced.

Description

Technical Field

[0001] The present application relates to the field of roads, and in particular to a roadbed base drainage structure. Background Art

[0002] Road mud and sludging occurs when the roadbed becomes soaked with water and softens or liquefies under the dynamic loads of vehicles, forming mud that gushes out along cracks in the pavement. During the cold winter months, large amounts of water freeze in the roadbed. When the permafrost thaws in spring, the surface soil melts first, while the underlying soil remains cold, and the ice crystals have not yet melted. This prevents the surface meltwater from seeping down and instead remains in the soil, causing its moisture content to rise. If heavy traffic loads are applied to the roadbed at this time, mud and sludging can easily occur, seriously impacting driving safety. Utility Model Content

[0003] One of the purposes of this application is to provide a roadbed drainage structure, which aims to solve the problem that existing roads are prone to diseases such as mud and mud.

[0004] The technical solution of this application is:

[0005] A roadbed base drainage structure comprises a crushed stone edging layer, a sand cushion layer, a roadbed and a pavement structure layer laid in sequence from bottom to top, wherein the crushed stone edging layer is laid along the slope and extends to the outside of the slope toe on both sides; a first synthetic resin porous rigid tube is embedded in the sand cushion layer, and a second synthetic resin porous rigid tube corresponding to and connected to the first synthetic resin porous rigid tube is embedded in the crushed stone edging layer at both sides of the slope.

[0006] As a technical solution of the present application, the thickness of the sand cushion layer is 50 cm, and the paving width is the roadbed width corresponding to the bottom surface of the roadbed.

[0007] As a technical solution of the present application, the thickness of the crushed stone edging layer is 50 cm, and extends to a range greater than or equal to 200 cm outside the slope foot.

[0008] As a technical solution of the present application, the first synthetic resin porous rigid pipe is laid in the middle position of the sand cushion layer.

[0009] As a technical solution of the present application, the first synthetic resin porous rigid tubes are laid at intervals along the longitudinal direction of the road, and the distance between two adjacent first synthetic resin porous rigid tubes is 20m.

[0010] As a technical solution of the present application, the outer diameter of the first synthetic resin porous rigid tube is 6 cm, the wall thickness is 1 cm, the spacing between the small holes in the tube wall is 3 cm, and the diameter of the small holes is 0.5 cm.

[0011] As a technical solution of the present application, the second synthetic resin porous rigid tube is laid in the middle of the gravel edging layer and extends to a range of 100 cm on each side of the slope foot.

[0012] As a technical solution of the present application, the second synthetic resin porous rigid tubes are laid at intervals along the longitudinal direction of the road, and the distance between two adjacent second synthetic resin porous rigid tubes is 20m.

[0013] As a technical solution of the present application, the outer diameter of the second synthetic resin porous rigid tube is 6 cm, the wall thickness is 1 cm, the spacing between the small holes in the tube wall is 3 cm, and the diameter of the small holes is 0.5 cm.

[0014] Beneficial effects of this application:

[0015] The roadbed drainage structure of the present application comprises first and second synthetic resin porous rigid tubes, which are economical, practical, and simple to construct. The first and second synthetic resin porous rigid tubes provide drainage control for the roadbed, thereby increasing roadbed stability and reducing roadbed subsidence. This effectively enhances the overall stability of the roadbed and reduces roadbed defects such as mud and mud. Furthermore, the structure is simple to construct and its quality is easily controlled. This structure is technically sound, economically feasible, and effective, and its construction process is economical and simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the following is a brief introduction to the drawings required for use in the implementation methods. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 Schematic diagram of the roadbed base drainage structure provided in the embodiment of the present application;

[0018] Figure 2 A schematic diagram of a first synthetic resin porous rigid tube provided in an embodiment of the present application;

[0019] Figure 3 This is a partially enlarged schematic diagram of the first synthetic resin porous rigid tube provided in an embodiment of the present application.

[0020] Icons: 1-Crushed stone edging layer; 2-Sand cushion layer; 3-Roadbed; 4-Pavement structure layer; 5-First synthetic resin porous rigid tube; 6-Second synthetic resin porous rigid tube; 7-Frost line. DETAILED DESCRIPTION

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without making any creative efforts shall fall within the scope of protection of the present application.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0024] In the description of this application, it should be noted that the terms "upper" and "lower" etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. These are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0025] In addition, in this application, unless otherwise expressly specified or limited, the phrase "a first feature is above or below a second feature" may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, the phrases "above, above, and above the second feature" may include the first feature being directly above and obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The phrases "below, below, and below the second feature" may include the first feature being directly below and obliquely below the second feature, or simply indicate that the first feature is lower in level than the second feature.

[0026] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0027] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0028] Example:

[0029] Please refer to Figure 1 , with reference Figures 2 to 3 The present application provides a roadbed base drainage structure, which includes a crushed stone edging layer 1, a sand cushion layer 2, a roadbed 3 and a pavement structure layer 4 laid in sequence from bottom to top; wherein, the crushed stone edging layer 1 is laid along the slope and extends to the outside of the slope toe on both sides; at the same time, a first synthetic resin porous rigid tube 5 is buried in the sand cushion layer 2, and a second synthetic resin porous rigid tube 6 corresponding to and connected to the first synthetic resin porous rigid tube 5 is buried in the crushed stone edging layer 1 at both sides of the slope.

[0030] It should be noted that in this embodiment, the thickness of the sand cushion layer 2 is 50 cm, and the laying width is the roadbed width corresponding to the bottom surface of the roadbed 3. In other embodiments, the thickness and laying width of the sand cushion layer 2 can be designed differently according to actual construction requirements and are not limited to the design form of this embodiment.

[0031] It should be noted that in this embodiment, the crushed stone edging layer 1 is 50 cm thick and extends to a distance greater than or equal to 200 cm beyond the slope foot. In other embodiments, the thickness and width of the crushed stone edging layer 1 can be designed differently according to actual construction requirements and are not limited to the design of this embodiment.

[0032] It should be noted that, in this embodiment, the outer diameter of the first synthetic resin porous rigid tube 5 is 6 cm, the wall thickness is 1 cm, the spacing between the small holes in the tube wall is 3 cm, and the small hole diameter is 0.5 cm. The first synthetic resin porous rigid tube 5 is laid in the middle position of the sand cushion layer 2 and is laid at intervals along the longitudinal direction of the road, and the spacing between two adjacent first synthetic resin porous rigid tubes 5 is 20 m. In other embodiments, the size and laying method of the first synthetic resin porous rigid tube 5 can be designed differently according to actual construction needs, and are not limited to the design form in this embodiment. The second synthetic resin porous rigid tube 6 is used to prevent and control drainage of the roadbed, which has the characteristics of increasing roadbed stability and reducing roadbed subsidence. It can effectively improve the overall stability of the roadbed and reduce the occurrence of mud and mud problems in the roadbed.

[0033] It should be noted that, in this embodiment, the outer diameter of the second synthetic resin porous rigid tube 6 is 6 cm, the wall thickness is 1 cm, the spacing between the small holes in the tube wall is 3 cm, and the small hole diameter is 0.5 cm. In addition, the second synthetic resin porous rigid tube 6 is laid in the middle position of the gravel edging layer 1 and extends to a range of 100 cm on each side of the slope foot. In addition, the second synthetic resin porous rigid tube 6 is laid at intervals along the longitudinal direction of the road, and the spacing between two adjacent second synthetic resin porous rigid tubes 6 is 20 m. In other embodiments, the size and laying method of the second synthetic resin porous rigid tube 6 can be designed differently according to actual construction needs, and are not limited to the design form in this embodiment. The second synthetic resin porous rigid tube 6 is used to prevent and control drainage of the roadbed, which has the characteristics of increasing roadbed stability and reducing roadbed subsidence. It can effectively improve the overall stability of the roadbed and reduce the occurrence of mud and mud diseases in the roadbed.

[0034] It should be noted that the first synthetic resin porous rigid tube 5 and the second synthetic resin porous rigid tube 6 can be made of a circular drainage body composed of an existing porous pipe made of a high molecular polymer as a drainage core and a geotextile as a filter material.

[0035] The construction method of the structure is:

[0036] Before starting construction, the base above the frost line 7 is first treated and compacted to meet the design requirements;

[0037] After the above steps are completed, fill the area between the frost line 7 and the sand cushion layer 2 with qualified soil in layers and compact it to the required compaction degree;

[0038] The roadbed slope below the sand cushion layer 2 is edged with 50 cm crushed stone to form a crushed stone edge layer 1. The crushed stone edge layer 1 extends to both sides of the slope foot and has a length of not less than 200 cm. Multiple second synthetic resin porous rigid tubes 6 are laid in the middle of the crushed stone edge layer 1, and are laid one at intervals of 20 m along the longitudinal direction of the road, i.e., the spacing between two adjacent second synthetic resin porous rigid tubes 6 is 20 m.

[0039] After the above steps are completed, the sand cushion layer 2 is constructed, and multiple first synthetic resin porous rigid tubes 5 are laid in the middle of the sand cushion layer 2, and are laid one at intervals of 20m along the longitudinal direction of the road, that is, the distance between two adjacent first synthetic resin porous rigid tubes 5 is 20m;

[0040] After the above steps are completed, the roadbed 3 is filled and compacted, and the pavement structure layer 4 is constructed after meeting the design requirements.

[0041] In summary, the roadbed drainage structure of the present application, wherein the first synthetic resin porous rigid tube 5 and the second synthetic resin porous rigid tube 6 are economical, practical, and simple to construct, provides drainage control for the roadbed, thereby increasing roadbed stability and reducing roadbed subsidence. This effectively enhances the overall stability of the roadbed and reduces roadbed defects such as mud and mud. Furthermore, the structure is simple to construct and its quality is easily controlled. This structure is technically sound, economically feasible, and effective, and the construction process is economical and simple.

[0042] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A roadbed base drainage structure, characterized in that: It includes a crushed stone edging layer, a sand cushion layer, a roadbed and a pavement structure layer laid in sequence from bottom to top. The crushed stone edging layer is laid along the slope and extends to the outside of the slope toe on both sides. A first synthetic resin porous rigid tube is buried in the sand cushion layer, and a second synthetic resin porous rigid tube corresponding to and connected to the first synthetic resin porous rigid tube is buried in the crushed stone edging layer at both sides of the slope.

2. The roadbed base drainage structure according to claim 1, characterized in that: The thickness of the sand cushion layer is 50 cm, and the paving width is the roadbed width corresponding to the bottom surface of the roadbed.

3. The roadbed base drainage structure according to claim 1, characterized in that: The thickness of the crushed stone edging layer is 50 cm and extends to a range greater than or equal to 200 cm outside the slope foot.

4. The roadbed base drainage structure according to claim 1, characterized in that: The first synthetic resin porous hard pipe is laid at the middle position of the sand cushion layer.

5. The roadbed base drainage structure according to claim 4, characterized in that: The first synthetic resin porous rigid tubes are laid at intervals along the longitudinal direction of the road, and the distance between two adjacent first synthetic resin porous rigid tubes is 20m.

6. The roadbed base drainage structure according to claim 1, characterized in that: The outer diameter of the first synthetic resin porous rigid tube is 6 cm, the wall thickness is 1 cm, the spacing between the small holes in the tube wall is 3 cm, and the diameter of the small holes is 0.5 cm.

7. The roadbed base drainage structure according to claim 1, characterized in that: The second synthetic resin porous rigid pipe is laid in the middle of the gravel edging layer and extends to a range of 100 cm on each side of the slope foot.

8. The roadbed base drainage structure according to claim 7, characterized in that: The second synthetic resin porous rigid tubes are laid at intervals along the longitudinal direction of the road, and the distance between two adjacent second synthetic resin porous rigid tubes is 20m.

9. The roadbed base drainage structure according to claim 7, characterized in that: The outer diameter of the second synthetic resin porous rigid tube is 6 cm, the wall thickness is 1 cm, the spacing between the small holes in the tube wall is 3 cm, and the diameter of the small holes is 0.5 cm.

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