Anti-settlement highway subgrade structure

Abstract

The utility model provides an anti-settlement highway subgrade structure, and relates to the technical field of highway subgrades, the anti-settlement highway subgrade structure comprises a pavement, a drainage layer and a concrete layer which are sequentially arranged from top to bottom, the anti-settlement highway subgrade structure further comprises a plurality of supporting assemblies, each supporting assembly comprises a connecting plate, a screw rod and a subgrade pile, the connecting plates are fixedly arranged on the concrete layers, and the screw rods slidably penetrate through the connecting plates; the roadbed pile is provided with a thread groove, the thread can be inserted into the thread groove, the screw rod is in threaded connection with the thread groove, the roadbed pile is provided with a plurality of limiting holes, inserting blocks are arranged in the limiting holes, and the inserting blocks can penetrate out of the roadbed pile; the roadbed structure and the foundation can be stably and firmly connected through the supporting assembly, the bearing capacity of the foundation is improved, the influence of foundation settlement on the roadbed structure is reduced, and therefore the stability and the anti-settlement effect of the roadbed structure are improved, and the roadbed structure can be supported and protected through the roadbed piles; wherein the insertion blocks can improve the connection firmness of the roadbed piles and the foundation, so that the stability and the anti-sedimentation effect of the roadbed structure are further improved.

Description

Technical Field

[0001] This application relates to the technical field of highway subgrades, and more specifically, to an anti-settlement highway subgrade structure. Background Art

[0002] The subgrade is the foundation of the track or road surface, and is a geotechnical structure formed by excavation or filling. The main function of the subgrade is to provide necessary conditions for the laying of the track or road surface and the operation of trains or vehicles, and to bear the static and dynamic loads of the track and rolling stock or the road surface and traffic loads, and at the same time transfer and disperse the loads deep into the foundation.

[0003] For example, Chinese Patent CN201920291816.2, a high-strength anti-settlement highway subgrade, the disclosed technical solution includes: a base layer, a gravel layer is compacted above the base layer, a road surface is compacted above the gravel layer, a plurality of drainage holes are opened above the road surface, a settlement protection layer is compacted below the base layer, a plurality of support mechanisms are fixed in the settlement protection layer, the settlement protection layer is compacted above the bottom layer, a plurality of steel plates are fixed on both sides of the bottom layer, and the height of the steel plates is the same as the height of the gravel layer; for this high-strength anti-settlement highway subgrade, the support mechanism in the settlement protection layer can well protect the highway subgrade. The highway base layer is composed of a cement concrete layer and a reinforced concrete layer, and both the cement concrete layer and the reinforced concrete layer have good compressive resistance and are very suitable as the base layer of the highway subgrade.

[0004] There are certain drawbacks in the use of this prior art. The bottom layer directly contacts the foundation, and the stability and anti-settlement effect of the subgrade are not good. Summary of the Invention

[0005] The purpose of the embodiments of this application is to provide an anti-settlement highway subgrade structure, which can solve the technical problems that the bottom layer of the subgrade structure in the prior art directly contacts the foundation, and the stability and anti-settlement effect of the subgrade are not good.

[0006] The embodiments of this application provide an anti-settlement highway subgrade structure, which includes a road surface, a drainage layer and a concrete layer arranged in sequence from top to bottom, and further includes a plurality of support components. The support component includes a connecting plate, a screw rod and a subgrade pile. The connecting plate is fixedly arranged on the concrete layer. The screw rod slidably penetrates through the connecting plate. The subgrade pile is provided with a thread groove, and the thread can be inserted into the thread groove, and the screw rod is threadedly connected with the thread groove. The subgrade pile is provided with a plurality of limiting holes, and a plug is arranged in the limiting hole, and the plug can penetrate out of the subgrade pile.

[0007] Wherein, the plug is in limit sliding connection with the limiting hole, a baffle is arranged in the limiting hole, the lower end of the plug abuts against the baffle, and the lower end of the screw rod is conical.

[0008] Among them, a first support cross plate is arranged at the bottom of the concrete layer. First support vertical plates are respectively arranged on both sides of the upper end of the first support cross plate. The concrete layer is arranged between the two first support vertical plates. A second support cross plate is arranged between the concrete layer and the drainage layer. Second support vertical plates are respectively arranged on both sides of the upper end of the second support cross plate. The drainage layer is arranged between the two second support vertical plates. A third support cross plate is arranged between the drainage layer and the road surface. Third support vertical plates are respectively arranged on both sides of the upper end of the third support cross plate. The road surface is arranged between the two third support vertical plates.

[0009] Among them, water guide blocks are arranged in the drainage layer. The water guide blocks are arranged on the upper end of the second support cross plate. Gravel mixed soil is arranged on the upper end of the water guide blocks. Drainage holes are formed in the second support vertical plates.

[0010] Among them, positioning rods are fixedly arranged on the upper end of the first support cross plate. Positioning holes are respectively formed in the first support vertical plate, the second support cross plate, the second support vertical plate, the third support cross plate and the third support vertical plate. The positioning rods and the positioning holes are used in cooperation.

[0011] Among them, the lower ends of the subgrade piles and the lower ends of the insertion blocks are both conical.

[0012] Among them, a handle is fixedly arranged at one end of the screw rod away from the thread groove.

[0013] Among them, the water guide blocks are in the shape of triangular prisms.

[0014] Among them, the first support cross plate, the first support vertical plate, the second support cross plate, the second support vertical plate, the third support cross plate and the third support vertical plate are all made of steel.

[0015] The beneficial effects of the utility model:

[0016] A roadbed structure for preventing settlement provided by the utility model, when in use, first drive the roadbed piles into the foundation, then set the concrete layer on the foundation, screw the screw into the threaded groove, at this time the insertion block penetrates out of the roadbed pile and inserts into the foundation, then the screw can be fixed to the roadbed pile, so as to fix the roadbed structure to the foundation, then set the drainage layer on the concrete layer, and then set the road surface on the drainage layer, then the laying and installation of the roadbed structure can be completed; by setting the support assembly, the connection between the roadbed structure and the foundation can be made firm and reliable, the bearing capacity of the foundation can be improved, the influence of foundation settlement on the roadbed structure can be reduced, so as to improve the stability and settlement prevention effect of the roadbed structure, wherein the roadbed pile can provide support and protection for the roadbed structure, and the insertion block can improve the connection firmness between the roadbed pile and the foundation, so as to further improve the stability and settlement prevention effect of the roadbed structure; by setting the drainage layer, rainwater or groundwater can be discharged in time, preventing the foundation or road surface from softening due to excessive moisture, so as to improve the stability and settlement prevention effect of the roadbed structure; by setting the concrete layer, the overall structural strength and compressive performance of the roadbed structure can be improved, so as to improve the stability and settlement prevention effect of the roadbed structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic cross-sectional view of the overall front view structure in some embodiments of the present application;

[0019] Figure 2 It is a schematic side view structure of the whole in some embodiments of the present application;

[0020] Figure 3 It is a schematic top view structure of the drainage layer in some embodiments of the present application;

[0021] Figure 4 is Figure 1 an enlarged schematic structure diagram of part A;

[0022] Figure 5 It is a schematic cross-sectional view of the front view structure of the support assembly in some embodiments of the present application.

[0023] The reference numerals are respectively:

[0024] 1, road surface; 11, third support cross plate; 12, third support vertical plate;

[0025] 2. Drainage layer; 21. Second support cross plate; 22. Second support vertical plate; 23. Water guide block; 24. Gravel mixed soil; 25. Drainage hole;

[0026] 3. Concrete layer; 31. First support cross plate; 32. First support vertical plate; 33. Positioning rod; 34. Positioning hole;

[0027] 4. Support assembly; 41. Connecting plate; 42. Screw; 43. Subgrade pile; 44. Thread groove; 45. Limit hole; 46. Insert block; 47. Baffle; 48. Handle. Detailed implementation manners

[0028] To make the objectives, technical solutions and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some but not all of the embodiments of this application. Generally, the components of the embodiments of this application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of this application which is claimed, but merely represents selected embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of this application without creative efforts shall fall within the scope of protection of this application.

[0030] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] In the description of this application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the products of this application are usually placed when in use. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of this application. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0032] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0033] In the description of the present application, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0034] As Figure 1 and 5 shown, an anti-settlement highway subgrade structure is provided in an embodiment of the present application, which includes a road surface 1, a drainage layer 2, and a concrete layer 3 arranged in sequence from top to bottom, and further includes a plurality of support assemblies 4. The support assembly 4 includes a connecting plate 41, a screw 42, and a subgrade pile 43. The connecting plate 41 is fixedly arranged on the concrete layer 3. The screw 42 slidably penetrates through the connecting plate 41. The subgrade pile 43 is provided with a threaded groove 44, and the thread can be inserted into the threaded groove 44, and the screw 42 is threadedly connected with the threaded groove 44. The subgrade pile 43 is provided with a plurality of limiting holes 45, and an insertion block 46 is arranged in the limiting hole 45, and the insertion block 46 can penetrate out of the subgrade pile 43.

[0035] During use, the subgrade pile 43 is driven into the foundation in advance, and then the concrete layer 3 is arranged on the foundation. The screw 42 is spirally inserted into the threaded groove 44. At this time, the insertion block 46 penetrates out of the subgrade pile 43 and is inserted into the foundation, so that the screw 42 can be fixed to the subgrade pile 43, thereby fixing the subgrade structure to the foundation. Then the drainage layer 2 is arranged on the concrete layer 3, and then the road surface 1 is arranged on the drainage layer 2, and the laying and installation of the subgrade structure can be completed. By setting the support assembly 4, the connection between the subgrade structure and the foundation can be made firm and reliable, the bearing capacity of the foundation can be improved, and the influence of foundation settlement on the subgrade structure can be reduced, thereby improving the stability and anti-settlement effect of the subgrade structure. Among them, the subgrade pile 43 can provide support and protection for the subgrade structure. Among them, the insertion block 46 can improve the connection firmness between the subgrade pile 43 and the foundation, thereby further improving the stability and anti-settlement effect of the subgrade structure. By setting the drainage layer 2, rainwater or groundwater can be discharged in time, preventing the foundation or the road surface 1 from softening due to excessive moisture, thereby improving the stability and anti-settlement effect of the subgrade structure. By setting the concrete layer 3, the overall structural strength and compressive performance of the subgrade structure are improved, thereby improving the stability and anti-settlement effect of the subgrade structure.

[0036] As Figure 5 shown, in this embodiment, the insertion block 46 is in limit sliding connection with the limiting hole 45. A baffle 47 is arranged in the limiting hole 45, and the lower end of the insertion block 46 abuts against the baffle 47. The lower end of the screw 42 is conical.

[0037] During use, the subgrade pile 43 is driven into the foundation in advance. The insertion block 46 inside the subgrade pile 43 is blocked by the baffle 47 and shrinks in the limit hole 45. Subsequently, the concrete layer 3 is set on the foundation, and the screw rod 42 is spirally inserted into the thread groove 44. During the process of the screw rod 42 being inserted into the thread groove 44, the screw rod 42 presses the insertion block 46, causing the insertion block 46 to slide along the limit hole 45 until it penetrates the baffle 47. The insertion block 46 penetrates out of the subgrade pile 43 and is inserted into the foundation, so that the screw rod 42 can be fixed to the subgrade pile 43, thereby fixing the subgrade structure to the foundation; for the convenience of the insertion block 46 to penetrate, the baffle 47 can be made of materials such as cardboard; the conical screw rod 42 is convenient for the screw rod 42 to press the insertion block 46, causing the insertion block 46 to slide along the limit hole 45.

[0038] As Figures 1 to 4 shown in the figure, in this embodiment, a first support cross plate 31 is provided at the bottom of the concrete layer 3. First support vertical plates 32 are respectively provided on both sides of the upper end of the first support cross plate 31. The concrete layer 3 is arranged between the two first support vertical plates 32. A second support cross plate 21 is provided between the concrete layer 3 and the drainage layer 2. Second support vertical plates 22 are respectively provided on both sides of the upper end of the second support cross plate 21. The drainage layer 2 is arranged between the two second support vertical plates 22. A third support cross plate 11 is provided between the drainage layer 2 and the road surface 1. Third support vertical plates 12 are respectively provided on both sides of the upper end of the third support cross plate 11. The road surface 1 is arranged between the two third support vertical plates 12.

[0039] The first support cross plate 31, the first support vertical plates 32, the second support cross plate 21, the second support vertical plates 22, the third support cross plate 11, and the third support vertical plates 12 can improve the overall structural strength and compressive performance of the subgrade structure, thereby improving the stability and anti-settlement effect of the subgrade structure.

[0040] As Figures 1 to 4 shown in the figure, in this embodiment, a water guide block 23 is provided in the drainage layer 2. The water guide block 23 is arranged at the upper end of the second support cross plate 21. A gravel mixture 24 is provided at the upper end of the water guide block 23. Drainage holes 25 are provided in the second support vertical plates 22.

[0041] The gravel mixture 24 has good drainage performance and bearing capacity, which is convenient for the rainwater on the road surface 1 or the groundwater in the foundation to quickly penetrate into the gravel mixture 24. The water guide block 23 is convenient for guiding water, so as to discharge the rainwater or groundwater from the drainage holes 25 in time, preventing the foundation or the road surface 1 from softening due to excessive moisture, thereby improving the stability and anti-settlement effect of the subgrade structure.

[0042] As Figures 1 to 4As shown in the figure, in this embodiment, a positioning rod 33 is fixedly arranged at the upper end of the first support cross plate 31. The first support vertical plate 32, the second support cross plate 21, the second support vertical plate 22, the third support cross plate 11, and the third support vertical plate 12 are respectively provided with positioning holes 34, and the positioning rod 33 is used in cooperation with the positioning holes 34.

[0043] During use, lay the first support cross plate 31 on the foundation, then install the first support vertical plate 32 on the first support cross plate 31, then lay concrete between the two first support vertical plates 32. Subsequently, lay the second support cross plate 21 on the concrete layer 3, then install the second support vertical plate 22 on the second support cross plate 21, then install the water guide block 23 between the two second support vertical plates 22, then lay the gravel mixed soil 24 on the water guide block 23. Subsequently, lay the third support cross plate 11 on the drainage layer 2, then install the third support vertical plate 12 on the third support cross plate 11, and then lay the road surface 1 between the two third support vertical plates 12, thus completing the laying and installation of the subgrade structure; the cooperation of the positioning rod 33 and the positioning holes 34 plays a role in positioning and limiting, facilitating the quick alignment and installation between the first support cross plate 31, the first support vertical plate 32, the second support cross plate 21, the second support vertical plate 22, the third support cross plate 11, and the third support vertical plate 12, improving the use convenience, and moreover, it can prevent the occurrence of offset and dislocation, improving the overall stability and anti-settlement effect of the subgrade structure.

[0044] As Figure 5 shown in the figure, in this embodiment, the lower ends of the subgrade piles 43 and the lower ends of the insertion blocks 46 are both conical; the conical subgrade piles 43 and the conical insertion blocks 46 are beneficial for inserting into the foundation, being stable and reliable, with good fixing effects, thereby improving the stability and anti-settlement effect of the subgrade structure.

[0045] As Figure 5 shown in the figure, in this embodiment, a handle 48 is fixedly arranged at one end of the screw rod 42 away from the thread groove 44; the handle 48 facilitates the staff to rotate the screw rod 42, improving the use convenience.

[0046] As Figure 1 and 3 shown in the figure, in this embodiment, the water guide block 23 is in the shape of a triangular prism; the water guide block 23 in the shape of a triangular prism guides water, facilitating the timely discharge of rainwater or groundwater from the drain holes 25.

[0047] In this embodiment, the first support cross plate 31, the first support vertical plate 32, the second support cross plate 21, the second support vertical plate 22, the third support cross plate 11, and the third support vertical plate 12 are all made of steel. The first support cross plate 31, the first support vertical plate 32, the second support cross plate 21, the second support vertical plate 22, the third support cross plate 11, and the third support vertical plate 12 made of steel can improve the overall structural strength and compressive performance of the subgrade structure, thereby improving the stability and anti-settlement effect of the subgrade structure.

[0048] Working principle: When the anti-settlement highway subgrade structure provided by this application is in use, first drive the subgrade pile 43 into the foundation. The insert block 46 in the subgrade pile 43 is blocked by the baffle 47 and shrinks in the limit hole 45. Then lay the first support cross plate 31 on the foundation, then install the first support vertical plate 32 on the first support cross plate 31, then lay the concrete between the two first support vertical plates 32. Then rotate the handle 48 to drive the screw 42 to rotate. The screw 42 is screwed into the thread groove 44. During the process of the screw 42 being inserted into the thread groove 44, the screw 42 presses the insert block 46, so that the insert block 46 slides along the limit hole 45 until it penetrates through the baffle 47. The insert block 46 penetrates out of the subgrade pile 43 and is inserted into the foundation, then the screw 42 can be fixed to the subgrade pile 43, thereby fixing the subgrade structure to the foundation. Then lay the second support cross plate 21 on the concrete layer 3, then install the second support vertical plate 22 on the second support cross plate 21, then install the water guide block 23 between the two second support vertical plates 22, then lay the gravel mixed soil 24 on the water guide block 23. Then lay the third support cross plate 11 on the drainage layer 2, then install the third support vertical plate 12 on the third support cross plate 11, and then lay the road surface 1 between the two third support vertical plates 12, and the laying and installation of the subgrade structure can be completed.

[0049] The above is only the preferred embodiment of this application and is not used to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

1. An anti-settlement highway subgrade structure, characterized in that: The invention comprises a road surface (1), a drainage layer (2) and a concrete layer (3) which are arranged in sequence from top to bottom, and also comprises a plurality of support assemblies (4), wherein the support assemblies (4) comprise a connecting plate (41), a screw rod (42) and a roadbed pile (43), wherein the connecting plate (41) is fixedly arranged on the concrete layer (3), the screw rod (42) slides through the connecting plate (41), the roadbed pile (43) is provided with a thread groove (44), the thread can be inserted into the thread groove (44), and the screw rod (42) is threadedly connected to the thread groove (44), and the roadbed pile (43) is provided with a plurality of limiting holes (45), wherein an insert block (46) is arranged in the limiting hole (45), and the insert block (46) can pass through the roadbed pile (43).

2. The anti-settling highway subgrade structure according to claim 1 is characterized by: The insert block (46) is connected to the limiting hole (45) in a limiting sliding manner. A baffle (47) is provided in the limiting hole (45). The lower end of the insert block (46) abuts against the baffle (47). The lower end of the screw rod (42) is conical.

3. The anti-settling highway subgrade structure according to claim 1 is characterized by: A first supporting transverse plate (31) is arranged at the bottom of the concrete layer (3), first supporting vertical plates (32) are arranged on both sides of the upper end of the first supporting transverse plate (31), the concrete layer (3) is arranged between the two first supporting vertical plates (32), a second supporting transverse plate (21) is arranged between the concrete layer (3) and the drainage layer (2), second supporting vertical plates (22) are arranged on both sides of the upper end of the second supporting transverse plate (21), the drainage layer (2) is arranged between the two second supporting vertical plates (22), a third supporting transverse plate (11) is arranged between the drainage layer (2) and the road surface (1), third supporting vertical plates (12) are arranged on both sides of the upper end of the third supporting transverse plate (11), and the road surface (1) is arranged between the two third supporting vertical plates (12).

4. The anti-settling highway subgrade structure according to claim 3 is characterized by: A water guide block (23) is arranged in the drainage layer (2), the water guide block (23) is arranged at the upper end of the second supporting horizontal plate (21), a gravel mixed soil (24) is arranged at the upper end of the water guide block (23), and the second supporting vertical plate (22) is provided with a drainage hole (25).

5. The anti-settling highway subgrade structure according to claim 3 is characterized by: A positioning rod (33) is fixedly provided at the upper end of the first supporting transverse plate (31); the first supporting vertical plate (32), the second supporting transverse plate (21), the second supporting vertical plate (22), the third supporting transverse plate (11), and the third supporting vertical plate (12) are respectively provided with positioning holes (34); the positioning rod (33) is used in conjunction with the positioning holes (34).

6. The anti-settling highway subgrade structure according to claim 1 is characterized by: The lower ends of the roadbed pile (43) and the insert block (46) are both tapered.

7. The anti-settling highway subgrade structure according to claim 1 is characterized by: A handle (48) is fixedly provided at one end of the screw rod (42) away from the thread groove (44).

8. The anti-settling highway subgrade structure according to claim 4 is characterized by: The water guide block (23) is in the form of a triangular prism.

9. The anti-settling highway subgrade structure according to claim 3, characterized in that: The first supporting transverse plate (31), the first supporting vertical plate (32), the second supporting transverse plate (21), the second supporting vertical plate (22), the third supporting transverse plate (11), and the third supporting vertical plate (12) are all made of steel.

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