Pile bearing slope type foam lightweight concrete roadbed structure

Abstract

The utility model relates to the technical field of rail transit, in particular to a pile-bearing slope type foam lightweight concrete roadbed structure, which can effectively reduce roadbed settlement and improve construction efficiency through a compact and convenient structure, and comprises a base body which is fixed on a foundation through a plurality of cement mixing piles and comprises a lightweight concrete structure, the left and right strip-shaped foundations longitudinally extend on the left and right sides of the base body; the left and right lightweight concrete panels extend upwards along the left and right side surfaces of the base body on the left and right strip-shaped foundations; the left and right L-shaped baffles are arranged at the tops of the left and right lightweight concrete panels and comprise vertical and transverse plate parts; the cloth film covers the top surface of the base body and extends between the left and right L-shaped baffles; the lightweight concrete panel is composed of a plurality of plate units which are connected up and down, each plate unit comprises a top groove and a bottom rib, the bottom rib is embedded into the top groove of the adjacent plate unit below, the bottom rib of the lowest plate unit is embedded into the foundation top groove of the strip foundation, and the bottom rib of the bottom plate unit is embedded into the bottom groove of the strip foundation. The left L-shaped baffle and the right L-shaped baffle are pressed on the uppermost plate units of the left lightweight concrete panel and the right lightweight concrete panel.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation, in particular to a pile-supported slope-type foamed lightweight concrete roadbed structure. Background Art

[0002] At present, railway subgrade structures usually use standardized parts and structures, which are suitable for mass manufacturing and construction. However, in some actual application environments, the geological conditions and surrounding road conditions are different, so adaptive adjustments are required for unusual application environments. In this case, the supporting solutions of the subgrade structure often have to be redesigned, which may seriously affect the construction progress.

[0003] In addition, the current railway roadbed filling materials generally adopt Group A, Group B, and Group C filling materials according to the specification requirements. The filling materials have a large self-weight, especially when filling in soft soil areas, which will increase the roadbed settlement, especially the uneven settlement, thereby increasing the foundation treatment costs. Moreover, with the increase in environmental protection requirements, it is more difficult to set up earthwork sites, resulting in a shortage of filling materials in many places, rising prices, and increased project investment. Utility Model Content

[0004] The embodiment of the utility model provides a pile-supported slope-type foam lightweight concrete roadbed structure, which can effectively reduce roadbed settlement and improve construction efficiency through a compact and convenient structure.

[0005] According to one embodiment of the utility model, a pile-supported slope-type foamed lightweight concrete roadbed structure is provided for rail transit, comprising:

[0006] a base body secured to the foundation by a plurality of cement mixing piles vertically inserted into the ground and comprising a lightweight concrete structure located on the foundation;

[0007] Left and right strip foundations, which are respectively arranged on the left and right sides of the base and extend in the longitudinal direction;

[0008] Left and right lightweight concrete panels, which are respectively arranged on the left and right strip foundations and extend upward along the left and right sides of the base, so that the lightweight concrete structure is limited between the left and right lightweight concrete panels;

[0009] Left and right L-shaped baffles, which are respectively arranged on the top of the left and right lightweight concrete panels, and each includes a vertical plate portion extending upward and a horizontal plate portion extending inward horizontally;

[0010] a cloth membrane covering the top surface of the substrate and extending between the left and right L-shaped baffles;

[0011] Wherein, each of the left and right lightweight concrete panels is composed of a plurality of panel units connected up and down, and the panel unit includes a top groove extending in the longitudinal direction and a bottom ridge extending in the longitudinal direction, and the bottom ridge of the panel unit is embedded in the top groove of the adjacent panel unit below to achieve upper and lower connection, wherein the bottom ridge of the lowest panel unit of the left and right lightweight concrete panels is respectively embedded in the top groove of the foundation of the left and right strip foundations, and the left and right L-shaped baffles are respectively pressed on the highest panel unit of the left and right lightweight concrete panels.

[0012] Preferably, in any embodiment,

[0013] The lightweight concrete structure includes at least one foamed lightweight concrete layer.

[0014] Preferably, in any embodiment,

[0015] The lightweight concrete structure includes at least one ordinary lightweight concrete layer.

[0016] Preferably, in any embodiment, it further comprises:

[0017] A crushed stone cushion layer, the base, the left strip foundation and the right strip foundation are arranged on the crushed stone cushion layer.

[0018] Preferably, in any embodiment,

[0019] The substrate comprises a geogrid structure arranged at the bottom thereof, and the lightweight concrete structure is arranged on the geogrid structure.

[0020] Preferably, in any embodiment,

[0021] The base body includes a galvanized metal mesh arranged on the top thereof and extending in a horizontal direction between the transverse plate parts of the left and right L-shaped baffles.

[0022] Preferably, in any embodiment,

[0023] The lightweight concrete structure comprises an upper foam lightweight concrete layer located above the galvanized metal mesh and a lower foam lightweight concrete layer located below the galvanized metal mesh.

[0024] Preferably, in any embodiment,

[0025] A wire mesh or grille is laid or pre-buried in at least one of the panel units.

[0026] The pile-supported slope-type foam lightweight concrete roadbed structure provided by each embodiment of the utility model can effectively reduce roadbed settlement and improve construction efficiency through a compact and convenient structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the drawings are only some embodiments of the utility model. For ordinary technicians in this field, other embodiments and their drawings can be obtained based on the embodiments shown in these drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of a pile-supported slope-type foamed lightweight concrete roadbed structure according to an embodiment of the utility model.

[0029] Figure 2 It is a structural schematic diagram of a left lightweight concrete panel according to an embodiment of the utility model. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the various embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments described in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] The embodiment of the utility model provides a pile-supported slope-type foam lightweight concrete roadbed structure, which can effectively reduce roadbed settlement and improve construction efficiency through a compact and convenient structure.

[0032] According to one embodiment of the utility model, a pile-supported slope-type foamed lightweight concrete roadbed structure is provided for rail transit, comprising:

[0033] a base body secured to the foundation by a plurality of cement mixing piles vertically inserted into the ground and comprising a lightweight concrete structure located on the foundation;

[0034] Left and right strip foundations, which are respectively arranged on the left and right sides of the base and extend in the longitudinal direction;

[0035] Left and right lightweight concrete panels, which are respectively arranged on the left and right strip foundations and extend upward along the left and right sides of the base, so that the lightweight concrete structure is limited between the left and right lightweight concrete panels;

[0036] Left and right L-shaped baffles, which are respectively arranged on the top of the left and right lightweight concrete panels, and each includes a vertical plate portion extending upward and a horizontal plate portion extending inward horizontally;

[0037] a cloth membrane covering the top surface of the substrate and extending between the left and right L-shaped baffles;

[0038] Wherein, each of the left and right lightweight concrete panels is composed of a plurality of panel units connected up and down, and the panel unit includes a top groove extending in the longitudinal direction and a bottom ridge extending in the longitudinal direction, and the bottom ridge of the panel unit is embedded in the top groove of the adjacent panel unit below to achieve upper and lower connection, wherein the bottom ridge of the lowest panel unit of the left and right lightweight concrete panels is respectively embedded in the top groove of the foundation of the left and right strip foundations, and the left and right L-shaped baffles are respectively pressed on the highest panel unit of the left and right lightweight concrete panels.

[0039] In this way, by setting the left and right lightweight concrete panels on the left and right strip foundations, left and right limiting structures extending from bottom to top (for example, they can extend in the vertical direction or in the upward oblique direction) are formed, so that the lightweight concrete structure of the base is limited between them, and left and right L-shaped baffles and a cloth membrane covering the top surface of the base and extending between the left and right L-shaped baffles are arranged on the top of the lightweight concrete structure of the base, thereby limiting the main part (i.e., the base) of the pile-bearing slope type foam lightweight concrete roadbed structure (which can be simply referred to as the roadbed structure).

[0040] It should be noted that both the left and right lightweight concrete panels can be formed by splicing with a modular structure, that is, both the left and right lightweight concrete panels can be composed of a plurality of plate units connected up and down, and the upper and lower adjacent plate units are spliced ​​and connected by matching bottom ridges and top grooves, thereby forming a lightweight concrete panel extending up and down. Through such a structure, a suitable number of plate units can be selected according to needs (especially the shape and size of the roadbed structure) to connect with each other to form a suitable lightweight concrete panel, which is not only compact in structure but also easy to operate, thereby providing good adjustment adaptability and significantly improving construction efficiency.

[0041] It can be seen that the pile-supported slope-type foam lightweight concrete roadbed structure provided by each embodiment of the utility model can effectively reduce roadbed settlement and improve construction efficiency through a compact and convenient structure.

[0042] Preferably, in any embodiment, the lightweight concrete structure includes at least one foamed lightweight concrete layer. Thus, the use of a foamed lightweight concrete layer with a foamed structure can not only evenly distribute the load, but also significantly reduce the roadbed load, thereby reducing the roadbed settlement.

[0043] Preferably, in any embodiment, the lightweight concrete structure includes at least one ordinary lightweight concrete layer. According to needs, a combination of an ordinary lightweight concrete layer and a foamed lightweight concrete layer can be used to reduce the roadbed load to reduce the roadbed settlement and ensure the roadbed structural strength.

[0044] Preferably, in any embodiment, it further comprises: a crushed stone cushion layer, on which the base, the left strip foundation and the right strip foundation are arranged. In this way, the crushed stone cushion layer is arranged at the bottom, which can enhance the structural strength on the one hand, and level the base on the other hand, and reduce the construction hidden dangers caused by uneven base structure (such as local unevenness or deformation).

[0045] Optionally, in any embodiment, cement mixing piles connected to the base are inserted downwardly into the foundation through the gravel cushion layer.

[0046] Optionally, in any embodiment, the base includes a crushed stone cushion layer at the bottom, wherein the left and right strip foundations are arranged on the crushed stone cushion layer, and the base is connected to the cement mixing piles through the crushed stone cushion layer and is fixed downward to the foundation through the cement mixing piles.

[0047] Preferably, in any embodiment, the substrate comprises: a geogrid structure arranged at the bottom thereof, and the lightweight concrete structure is arranged on the geogrid structure. In this way, the overall strength of the roadbed structure (especially the force bearing capacity in the horizontal plane) can be enhanced by the geogrid structure.

[0048] Optionally, in any embodiment, the geogrid structure may include an upper grid structure and a lower grid structure. In this way, by providing a multi-layer (two or more layers) grid structure, the overall strength of the roadbed structure can be further enhanced.

[0049] Optionally, in any embodiment, the distance between the upper grid structure and the lower grid structure is 20-40 cm, for example, 30 cm.

[0050] Optionally, in any embodiment, the high performance concrete structure is disposed between the upper grid structure and the lower grid structure, and passes through the grid gaps of the grid structures.

[0051] Preferably, in any embodiment, the base includes: a galvanized metal mesh arranged on the top thereof, which extends in the horizontal direction between the transverse plate parts of the left and right L-shaped baffles. In this way, the overall stability of the lightweight concrete structure of the base can be enhanced and cracking of the lightweight concrete structure can be effectively prevented.

[0052] Optionally, in any embodiment, multiple layers of horizontally extending galvanized metal mesh are arranged in the matrix, so as to further enhance the overall stability of the lightweight concrete structure.

[0053] Optionally, in any embodiment, the distance between the multiple layers of galvanized metal mesh is 0.5-1.0 m.

[0054] Preferably, in any embodiment, the lightweight concrete structure comprises: an upper foamed lightweight concrete layer located above the galvanized metal mesh and a lower foamed lightweight concrete layer located below the galvanized metal mesh.

[0055] Preferably, in any embodiment, a wire mesh or a grille is laid or pre-buried in at least one of the plate units. In this way, the overall strength and stability of the concrete structure (especially the foamed concrete structure) can be enhanced.

[0056] Optionally, in any embodiment, a wire mesh or grille is laid or pre-buried in each panel unit.

[0057] Optionally, in any embodiment, the size of the holes of the wire mesh or grille laid or pre-buried in the panel unit is 5-10 cm.

[0058] Optionally, in any embodiment, the diameter of the iron wires of the wire mesh laid or pre-buried in the panel unit is greater than 3 mm.

[0059] Optionally, in any embodiment, the left and right lightweight concrete panels extend in a vertical direction, or extend from bottom to top toward the central axis of the substrate (i.e., extend in an obliquely upward direction). In this way, a suitable panel extension slope (inclination angle) can be selected as required to adapt to the actual application environment.

[0060] Optionally, in any embodiment, the left and right lightweight concrete panels extend from bottom to top toward the central axis of the base, and the extension slope (i.e., the ratio of the vertical extension to the horizontal extension) is 15 to 30, for example, less than 20. In this way, a dam-type structure can be formed by extending the left and right lightweight concrete panels obliquely upward with a suitable extension slope, which not only has a stable structure that gradually widens from top to bottom, but also facilitates the dispersion of force to the base below, thereby achieving better structural reliability.

[0061] Optionally, in any embodiment, the left and right lightweight concrete panels extend from bottom to top toward the central axis of the substrate, and the extension gradients thereof are different. In this way, the left and right panels with different extension gradients can be used in a specific application environment as required.

[0062] Optionally, in any embodiment, the inner surface of the panel unit facing the lightweight concrete structure includes a foamed lightweight concrete layer, so that the lightweight concrete structure between the left and right lightweight concrete panels can be better adaptively limited.

[0063] Optionally, in any embodiment, an elastic layer or a deformable layer is provided in the top groove of the board unit, so as to better adapt to the shape of the bottom ridge of the adjacent board unit aligned therewith to achieve reliable connection.

[0064] Optionally, in any embodiment, the top groove and the bottom ridge of the plate unit are aligned up and down. In this way, when necessary, vertically extending (that is, perpendicular to the horizontal plane) left and right lightweight concrete panels can be formed by multiple plate units connected up and down.

[0065] Optionally, in any embodiment, the top groove and the bottom ridge of the plate unit are staggered up and down. In this way, when necessary, a plurality of plate units connected up and down can be used to form left and right lightweight concrete panels extending obliquely upward, and such a dam-like structure is also conducive to structural stability.

[0066] Optionally, in any embodiment, the bottom ridge of the panel unit extends along the central axis of the panel unit, and the top groove of the panel unit is laterally offset by a certain distance relative to the central axis of the panel unit. In this way, the top groove and the bottom ridge of the panel unit can be staggered up and down, so that the panel formed by connecting multiple panel units up and down can be inclined in an upward direction at a desired extension slope.

[0067] Optionally, in any embodiment, the top groove of the panel unit extends along the central axis of the panel unit, and the bottom ridge of the panel unit is laterally offset by a certain distance relative to the central axis of the panel unit. In this way, the top groove and the bottom ridge of the panel unit can be staggered up and down, so that the panel formed by connecting multiple panel units up and down can be inclined in an upward oblique direction at a desired extension slope.

[0068] Optionally, in any embodiment, the bottom rib of the plate unit has a square or wedge-shaped cross-section.

[0069] Optionally, in any embodiment, the cross section of the bottom ridge of the plate unit is in the shape of an isosceles wedge.

[0070] Optionally, in any embodiment, the cross section of the bottom ridge of the panel unit is in the shape of an isosceles wedge, which is suitable for forming a panel structure with a smaller extension slope (ie, a larger inclination angle).

[0071] Optionally, in any embodiment, the outer side surface of the plate unit (ie, the side surface away from the central axis of the roadbed structure) has a convex shape.

[0072] Optionally, in any embodiment, the outer side surface of the plate unit (ie, the side surface away from the central axis of the roadbed structure) is formed into an overall convex shape by a first inclined surface, a second inclined surface, and a connecting surface connected between the first and second inclined surfaces.

[0073] Optionally, in any embodiment, the left L-shaped baffle has a bottom ridge on the bottom surface facing the left lightweight concrete panel so as to fit in a top groove of the uppermost panel unit constituting the left lightweight concrete panel.

[0074] Optionally, in any embodiment, the right L-shaped baffle has a bottom ridge on the bottom surface facing the right lightweight concrete panel so as to fit in a top groove of the uppermost panel unit constituting the right lightweight concrete panel.

[0075] In this way, the left and right L-shaped baffles are positioned and installed in a shape-matching manner through the bottom ridges on their bottom surfaces and the top grooves of the topmost plate units of the corresponding left and right lightweight concrete panels, so that the left and right L-shaped baffles can be accurately and conveniently set on the top of the left and right lightweight concrete panels respectively.

[0076] Optionally, in any embodiment, the cloth membrane includes two layers of cloth and a layer of waterproof membrane.

[0077] Optionally, in any embodiment, the plurality of cement mixing piles are arranged in an equilateral triangle, so that the distances between the cement mixing piles are equal.

[0078] Optionally, in any embodiment, the plurality of cement mixing piles have the same size.

[0079] Optionally, in any embodiment, the plurality of cement mixing piles have the same diameter and different lengths. Thus, as required, longer piles can be used in areas that need to withstand greater external forces, while shorter piles can be used in areas that are less stressed. The combination of long and short piles can not only improve the technical effect, but also save construction costs.

[0080] Optionally, in any embodiment, the plurality of cement mixing piles include: long piles (e.g., multiple) located in the central area below the base (e.g., an area adjacent to the central axis of the base), and short piles (e.g., multiple) located in the edge area below the base (e.g., the left and right areas away from the center line of the base).

[0081] In one embodiment, a pile-supported sloped foam lightweight concrete roadbed structure is used to solve at least one of the following problems:

[0082] 1) Foam lightweight concrete has a light weight, and the adjustable bulk density range is 3 to 18 kN / m 3 When used for soft soil foundation filling, it can effectively reduce the roadbed load, reduce the additional stress of the foundation, effectively control the post-construction settlement, and reduce the cost of foundation treatment.

[0083] 2) Using high-performance lightweight concrete instead of traditional fillers can solve the problem of filler shortage. If the project is located in a deep soft soil area, it can also solve the problem of complex and high cost of foundation treatment in deep soft soil areas. The use of high-performance lightweight concrete to fill the roadbed is safe, stable, and easy to control, with fewer base bed diseases, a shorter construction period, and reduced roadbed operation and maintenance. From the perspective of the entire life cycle, it has good overall economic benefits.

[0084] 3) Foam lightweight concrete can solidify and stand on its own after final setting, so it can play a good role in reducing slope. The slope ratio of roadbed filled with foam lightweight concrete can reach 1:0.05~1:0, which can greatly reduce land acquisition and solve the difficulty of red line land acquisition.

[0085] The use of pile-supported sloped foam lightweight concrete roadbed structure can effectively reduce the roadbed load, reduce additional foundation stress, effectively control post-construction settlement, and reduce foundation treatment costs; the use of high-performance lightweight concrete instead of traditional fillers can solve the problem of lack of fillers. The use of high-performance lightweight concrete to fill the roadbed is safe, stable, and easy to control, with fewer base bed diseases, a shorter construction period, and reduced roadbed operation and maintenance. From the perspective of the entire life cycle, the overall economic benefits are good; it can also reduce land acquisition and reduce land acquisition costs.

[0086] The use of pile-supported sloped foam lightweight concrete roadbed structure solves the problem of lack of filler, reduces the load on the soft soil embankment, better controls the roadbed settlement, reduces the soft soil foundation treatment cost by about 25%, and reduces land acquisition, reducing land acquisition costs by about 30%.

[0087] Figure 1 It is a schematic diagram of a pile-supported slope-type foamed lightweight concrete roadbed structure according to an embodiment of the utility model.

[0088] exist Figure 1 In the embodiment shown, a pile-supported slope-type foamed lightweight concrete roadbed structure can be seen, which is used for rail transportation and includes:

[0089] A base body, fixed to the foundation by a plurality of cement mixing piles 101 vertically inserted into the ground, and comprising a lightweight concrete structure 110 located on the foundation;

[0090] Left and right strip foundation ( Figure 1 A left strip-shaped foundation 210 is shown, which is disposed on the left and right sides of the base body and extends in the longitudinal direction (ie, in a direction perpendicular to the paper surface);

[0091] Left and right lightweight concrete panels ( Figure 1 A left lightweight concrete panel 310 is shown, which is respectively arranged on the left and right strip foundations and extends upward along the left and right sides of the base, so that the lightweight concrete structure is limited between the left and right lightweight concrete panels;

[0092] Left and right L-shaped baffles ( Figure 1 The left L-shaped baffle 410 is shown, which is respectively arranged on the top of the left and right lightweight concrete panels, and each includes a vertical plate portion extending upward and an inward (ie, toward the center line of the substrate, such as Figure 1 A cross plate portion extending horizontally from the vertical center line shown in FIG.

[0093] a cloth membrane 500 covering the top surface of the substrate and extending between the left and right L-shaped baffles;

[0094] Wherein, each of the left and right lightweight concrete panels is composed of a plurality of panel units connected up and down, and the panel unit includes a top groove extending in the longitudinal direction and a bottom ridge extending in the longitudinal direction, and the bottom ridge of the panel unit is embedded in the top groove of the adjacent panel unit below to achieve upper and lower connection, wherein the bottom ridge of the bottommost panel unit of the left and right lightweight concrete panels is respectively embedded in the top groove of the left and right strip foundations, and the left and right L-shaped baffles are respectively pressed on the topmost panel units of the left and right lightweight concrete panels.

[0095] Figure 1 Also shown in the illustrated embodiment is a galvanized metal mesh 600 disposed on the top of the substrate, and a geogrid structure 700 disposed on the bottom of the substrate.

[0096] Figure 2 It is a structural schematic diagram of a left lightweight concrete panel according to an embodiment of the utility model.

[0097] exist Figure 2 It can be seen from the illustrated embodiment that the left lightweight concrete panel 310 is composed of a plurality of panel units 330 connected vertically, wherein the panel units include a top groove 331 extending longitudinally and a bottom ridge 332 extending longitudinally, wherein the bottom ridge of the panel unit is embedded in the top groove of the adjacent panel unit below to achieve vertical connection, wherein the bottom ridge of the bottommost panel unit of the left lightweight concrete panel is embedded in the top groove of the foundation of the left strip foundation 210, and the left L-shaped baffle 410 is pressed onto the topmost panel unit of the left lightweight concrete panel 310.

[0098] The pile-supported slope-type foam lightweight concrete roadbed structure provided by each embodiment of the utility model can effectively reduce roadbed settlement and improve construction efficiency through a compact and convenient structure.

[0099] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes these elements, but also includes other elements not clearly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements limited by the sentence "comprise a ..." do not exclude the existence of other identical factors in the process, method, article or equipment including the elements.

[0100] In the description of multiple elements herein, multiple parallel features connected by "and / or" refer to one or more (or one or more) of these parallel features. For example, "the first element and / or the second element" means: one or more of the first element and the second element, that is, only the first element, or only the second element, or the first element and the second element (both exist at the same time).

[0101] The various embodiments provided in the present invention can be combined with each other as needed. For example, the features of any two, three or more embodiments can be combined with each other to form a new embodiment of the present invention. This is also within the protection scope of the present invention, unless otherwise stated or technically inconsistent and cannot be implemented.

[0102] The above description is only an exemplary embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A pile-supported slope-type foamed lightweight concrete roadbed structure for rail transit, characterized in that: include: a base body secured to the foundation by a plurality of cement mixing piles vertically inserted into the ground and comprising a lightweight concrete structure located on the foundation; Left and right strip foundations, which are respectively arranged on the left and right sides of the base and extend in the longitudinal direction; Left and right lightweight concrete panels, which are respectively arranged on the left and right strip foundations and extend upward along the left and right sides of the base, so that the lightweight concrete structure is limited between the left and right lightweight concrete panels; Left and right L-shaped baffles, which are respectively arranged on the top of the left and right lightweight concrete panels, and each includes a vertical plate portion extending upward and a horizontal plate portion extending inward horizontally; a cloth membrane covering the top surface of the substrate and extending between the left and right L-shaped baffles; Wherein, each of the left and right lightweight concrete panels is composed of a plurality of panel units connected up and down, and the panel unit includes a top groove extending in the longitudinal direction and a bottom ridge extending in the longitudinal direction, and the bottom ridge of the panel unit is embedded in the top groove of the adjacent panel unit below to achieve upper and lower connection, wherein the bottom ridge of the lowest panel unit of the left and right lightweight concrete panels is respectively embedded in the top groove of the foundation of the left and right strip foundations, and the left and right L-shaped baffles are respectively pressed on the highest panel unit of the left and right lightweight concrete panels.

2. The pile-supported slope-type foamed lightweight concrete roadbed structure according to claim 1, characterized in that: The lightweight concrete structure includes at least one foamed lightweight concrete layer.

3. The pile-supported slope-type foamed lightweight concrete roadbed structure according to claim 1, characterized in that: The lightweight concrete structure includes at least one ordinary lightweight concrete layer.

4. The pile-supported slope-type foamed lightweight concrete roadbed structure according to claim 1, characterized in that: Further including: A crushed stone cushion layer, the base body, the left and right strip foundations are arranged on the crushed stone cushion layer.

5. The pile-supported slope-type foamed lightweight concrete roadbed structure according to claim 1, characterized in that: The substrate comprises a geogrid structure arranged at the bottom thereof, and the lightweight concrete structure is arranged on the geogrid structure.

6. The pile-supported slope-type foamed lightweight concrete roadbed structure according to claim 1, characterized in that: The base body includes a galvanized metal mesh arranged on the top thereof and extending in a horizontal direction between the transverse plate parts of the left and right L-shaped baffles.

7. The pile-supported slope-type foamed lightweight concrete roadbed structure as claimed in claim 6, characterized in that: The lightweight concrete structure comprises an upper foam lightweight concrete layer located above the galvanized metal mesh and a lower foam lightweight concrete layer located below the galvanized metal mesh.

8. The pile-supported slope-type foamed lightweight concrete roadbed structure according to claim 1, characterized in that: A wire mesh or grille is laid or pre-buried in at least one of the panel units.

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