Heavy-duty road base structure

Abstract

The utility model discloses a heavy-load road base structure, and relates to the technical field of road base structures, the heavy-load road base structure comprises two retaining walls, a roadbed bottom layer, a waterproof layer, a coal gangue layer, a fine sand layer, a concrete layer, a fiber layer and a roadbed surface layer are sequentially arranged between the two retaining walls from bottom to top, and three steel frames are fixedly connected in the coal gangue layer. Fixed rods are fixedly connected to the upper wall of the steel frame, an adjusting device is arranged between every two adjacent fixed rods, and each adjusting device comprises a sleeve and a movable rod which are installed between every two adjacent fixed rods; a limiting mechanism for limiting the moving rod is mounted on the sleeve; scales are arranged on the side wall of the movable rod. According to the fixing device, the distance between every two adjacent fixing rods can be conveniently controlled.

Description

Technical Field

[0001] The present application relates to the technical field of road base structures, and in particular to a heavy-load road base structure. Background Art

[0002] At present, the road base is a layered structure that is paved in layers on the roadbed or cushion surface with a single material according to certain technical measures. The quality of its materials and quality directly affects the quality and performance of the road surface. The base is the load-bearing layer of the entire road and plays a role in stabilizing the road surface.

[0003] The relevant technology can refer to the Chinese utility model patent with the authorization announcement number CN218263286U, which discloses a road base structure for heavy-loaded roads, including two retaining walls, the middle of the lower side of the two retaining walls is fixedly connected with a base component; the base component includes a roadbed base layer, the left and right ends of the roadbed base layer are connected with steel bar ears, the middle of the two steel bar ears are fixedly connected with steel bars, the upper side of the roadbed base layer is bonded with a first waterproof layer, the upper side of the first waterproof layer is bonded with a coal gangue layer, the coal gangue layer is fixedly connected with three steel frames, the upper wall of the steel frame is fixedly connected with a fixed rod, the left and right sides of the fixed rod are plugged with fine sand layers, and the top of the fixed rod is bonded with a concrete layer. The road base structure for heavy-loaded roads solves the problem that the surface layer is prone to fission after being stimulated by sunlight and rainwater during long-term use, resulting in rainwater directly flowing into the base layer and causing cracks in the entire road.

[0004] However, when constructing the road base structure, it is inconvenient to control the distance between the two adjacent fixing poles, which may easily cause the distance between the two adjacent fixing poles to be large or small, thereby easily affecting the supporting effect of the fixing poles. Utility Model Content

[0005] The present application provides a heavy-load road base structure, which is convenient for controlling the distance between two adjacent fixing poles, and adopts the following technical solution:

[0006] A heavy-load road base structure comprises two retaining walls, between which a roadbed subgrade layer, a waterproof layer, a coal gangue layer, a fine sand layer, a concrete layer, a fiber layer and a roadbed surface layer are arranged in sequence from bottom to top, three steel frames are fixedly connected inside the coal gangue layer, a fixing rod is fixedly connected to the upper wall of the steel frame, an adjusting device is arranged between two adjacent fixing rods, the adjusting device comprises a sleeve and a moving rod respectively installed between the two adjacent fixing rods; a limiting mechanism for limiting the moving rod is installed on the sleeve; and a scale is arranged on the side wall of the moving rod.

[0007] By adopting the above scheme, when it is necessary to adjust the spacing between two adjacent fixed rods, the fixed rod is driven to move by moving the steel frame, and the movement of the fixed rod drives the moving rod to move in the sleeve, and the moving position of the moving rod is observed by the scale. When the moving rod moves to a suitable position, the moving rod is limited by the limiting mechanism, so that the spacing between two adjacent fixed rods can be adjusted; the provided adjustment device is convenient for adjusting the spacing between two adjacent fixed rods, and thus it is convenient to control the spacing between two adjacent fixed rods.

[0008] Preferably, the limiting mechanism includes a connecting tube fixedly connected to the outer wall of the sleeve, a through hole opened in the side wall of the sleeve, and a limiting rod slidably connected to the through hole; the side wall of the movable rod is provided with a plurality of limiting holes in sequence along its axial direction, one end of the limiting rod is inserted into the limiting hole, and the other end is arranged through the inner cavity of the connecting tube and fixedly connected to a handle.

[0009] By adopting the above scheme, when the moving rod needs to be limited, the limiting rod is moved by the handle so that the limiting rod is inserted into the limiting hole, so that the moving rod can be limited. The provided limiting mechanism facilitates the limiting of the moving rod.

[0010] Preferably, a slider is fixedly connected to the outer wall of the limiting rod, a sliding groove for sliding the slider is provided on the inner wall of the connecting tube, a spring is fixedly connected to one side of the slider, and one end of the spring away from the slider is fixedly connected to the inner wall of one end of the sliding groove.

[0011] When the moving rod needs to be moved, first pull the limit rod upwards through the handle to separate the limit rod from the limit hole, and then the moving rod can be moved. Furthermore, the movement of the limit rod drives the slider to move, and the movement of the slider presses the spring; when the moving rod needs to be limited, first release the handle, and at this time the slider drives the limit rod to be plugged into the limit hole under the action of the spring, so that the moving rod can be limited; in summary, by adopting the above scheme, it is convenient to limit the moving rod.

[0012] Preferably, support plates are fixedly connected to both sides of the steel frame.

[0013] By adopting the above solution, the support plate is provided, which is convenient for supporting the steel frame, thereby facilitating the installation of the steel frame.

[0014] Preferably, a connecting plate is fixed to the bottom of the support plate, and the connecting plate is fixed to the roadbed subgrade by expansion bolts.

[0015] By adopting the above solution, the connecting plate is provided, which facilitates the fixing of the steel frame.

[0016] Preferably, a first threaded rod is fixedly connected to one end of the sleeve away from the moving rod, a first threaded hole is formed on the side wall of the fixed rod, and the first threaded rod is threadedly connected to the first threaded hole.

[0017] By adopting the above solution, the first threaded hole and the first threaded rod are provided, which facilitates the connection between the sleeve and the fixing rod.

[0018] Preferably, a second threaded rod is fixedly connected to one end of the movable rod away from the sleeve, a second threaded hole is formed on the side wall of the fixed rod, and the second threaded rod is threadedly connected to the second threaded hole.

[0019] By adopting the above solution, the second threaded hole and the second threaded rod are provided, so as to facilitate the connection between the movable rod and the fixed rod.

[0020] Preferably, the outer side walls of the moving rod and the sleeve are both provided with annular grooves.

[0021] By adopting the above solution, the annular groove is provided to facilitate the rotation of the drive sleeve or the moving rod.

[0022] In summary, this application has the following beneficial effects:

[0023] 1. When the spacing between two adjacent fixed rods needs to be adjusted, the fixed rod is driven to move by moving the steel frame, and the movement of the fixed rod drives the moving rod to move in the sleeve, and the moving position of the moving rod is observed by the scale. When the moving rod moves to a suitable position, the moving rod is limited by the limiting mechanism, so that the spacing between two adjacent fixed rods can be adjusted; the setting adjustment device is convenient for adjusting the spacing between two adjacent fixed rods, and then it is convenient to control the spacing between two adjacent fixed rods;

[0024] 2. First, pull the limit rod upward through the handle to separate the limit rod from the limit hole, and then the moving rod can be moved. The movement of the limit rod drives the slider to move, and the movement of the slider presses the spring. When the moving rod needs to be limited, first release the handle. At this time, the slider drives the limit rod to be plugged into the limit hole under the action of the spring, so that the moving rod can be limited. In summary, by adopting the above scheme, it is convenient to limit the moving rod.

[0025] 3. The support plate is provided to facilitate the support of the steel frame, thereby facilitating the installation of the steel frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0027] Figure 2 This is a cross-sectional view highlighting the connection between the moving rod and the sleeve in the embodiment of the present application;

[0028] Figure 3 This is a cross-sectional view highlighting the connection between the steel frame and the support plate in the embodiment of the present application;

[0029] Figure 4 This is a cross-sectional view highlighting the first threaded rod and the second threaded rod in the embodiment of the present application.

[0030] Explanation of the reference numerals in the accompanying drawings: 1. retaining wall; 11. roadbed base layer; 12. waterproof layer; 13. coal gangue layer; 14. fine sand layer; 15. concrete layer; 16. fiber layer; 17. roadbed surface layer; 2. steel frame; 21. horizontal groove; 3. fixing rod; 31. first threaded hole; 32. second threaded hole; 4. adjusting device; 41. sleeve; 411. first threaded rod; 412. annular groove; 42. moving rod; 421. second threaded rod; 43. scale; 5. limiting mechanism; 51. connecting pipe; 52. through hole; 53. limiting rod; 54. limiting hole; 55. handle; 56. slider; 57. slide groove; 58. spring; 6. support plate; 61. through hole; 62. screw; 7. connecting plate; 71. expansion bolt. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper", "lower", "bottom" and "top" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0033] The present application discloses a heavy-load road base structure, comprising two retaining walls 1, between which a roadbed base layer 11, a waterproof layer 12, a coal gangue layer 13, a fine sand layer 14, a concrete layer 15, a fiber layer 16 and a roadbed surface layer 17 are arranged in sequence from bottom to top, three steel frames 2 are fixedly connected inside the coal gangue layer 13, a fixing rod 3 is fixedly connected to the upper wall of the steel frame 2, and an adjustment device 4 is arranged between two adjacent fixing rods 3.

[0034] The adjusting device 4 includes a sleeve 41 and a moving rod 42 respectively installed between two adjacent fixed rods 3; the moving rod 42 is connected to the inner cavity of the sleeve 41 by sliding along the axial direction of the sleeve 41, and a limiting mechanism 5 for limiting the moving rod 42 is installed on the sleeve 41; the side wall of the moving rod 42 is provided with a scale 43. When it is necessary to adjust the spacing between two adjacent fixed rods 3, the fixed rod 3 is driven to move by moving the steel frame 2, and the movement of the fixed rod 3 drives the moving rod 42 to move in the sleeve 41, and the moving position of the moving rod 42 is observed through the scale 43. When the moving rod 42 moves to a suitable position, the moving rod 42 is limited by the limiting mechanism 5, so that the spacing between the two adjacent fixed rods 3 can be adjusted; the setting of the adjusting device 4 is convenient for adjusting the spacing between the two adjacent fixed rods 3, and then it is convenient to control the spacing between the two adjacent fixed rods 3.

[0035] The limiting mechanism 5 includes a connecting tube 51 fixedly connected to the outer wall of the sleeve 41, a through hole 52 opened in the side wall of the sleeve 41, and a limiting rod 53 connected to the through hole 52 by sliding along the radial direction of the sleeve 41; a plurality of limiting holes 54 are sequentially opened on the side wall of the moving rod 42 along its axial direction, one end of the limiting rod 53 is inserted into the limiting hole 54, and the other end is arranged through the inner cavity of the connecting tube 51 and fixedly connected with a handle 55. When it is necessary to limit the moving rod 42, the limiting rod 53 is moved by the handle 55 so that the limiting rod 53 is inserted into the limiting hole 54, so that the moving rod 42 can be limited. The setting of the limiting mechanism 5 facilitates the limiting of the moving rod 42.

[0036] The outer wall of the limiting rod 53 is fixed with a slider 56, and the inner wall of the connecting tube 51 is provided with a slide groove 57 for the slider 56 to slide vertically. A spring 58 is fixed to one side of the slider 56, and the spring 58 is vertically arranged. One end of the spring 58 away from the slider 56 is fixed to the inner wall of one end of the slide groove 57. First, the limiting rod 53 is pulled upward by the handle 55 to separate the limiting rod 53 from the limiting hole 54, and then the moving rod 42 can be moved. Then, the movement of the limiting rod 53 drives the slider 56 to move, and the movement of the slider 56 presses the spring 58. When the moving rod 42 needs to be limited, the handle 55 is first released. At this time, the slider 56 drives the limiting rod 53 to be plugged into the limiting hole 54 under the action of the spring 58, so that the moving rod 42 can be limited. In summary, by adopting the above scheme, it is convenient to limit the moving rod 42.

[0037] Support plates 6 are fixedly connected to both sides of the steel frame 2. A through hole 61 is provided on the support plate 6. A screw 62 is provided in the through hole 61. A plurality of horizontal grooves 21 are provided in sequence along the vertical direction on both sides of the steel frame 2. The screw 62 can be threadedly connected to the horizontal groove 21. The support plate 6 is provided to facilitate supporting the steel frame 2, thereby facilitating the installation of the steel frame 2. The horizontal groove 21 and the screw 62 are provided to facilitate adjusting the height of the steel frame 2, thereby facilitating the installation of the steel frame 2.

[0038] The bottom of the support plate 6 is fixedly connected with a connecting plate 7, and the connecting plate 7 is fixedly connected to the roadbed layer 11 through expansion bolts 71. The connecting plate 7 is provided to facilitate fixing the steel frame 2.

[0039] The end of the sleeve 41 away from the moving rod 42 is fixedly connected with a first threaded rod 411, which is arranged along the axial direction of the sleeve 41. The side wall of the fixed rod 3 is provided with a first threaded hole 31, and the first threaded rod 411 is threadedly connected to the first threaded hole 31; the first threaded hole 31 and the first threaded rod 411 are provided to facilitate the connection between the sleeve 41 and the fixed rod 3. The end of the moving rod 42 away from the sleeve 41 is fixedly connected with a second threaded rod 421, which is arranged along the axial direction of the moving rod 42. The side wall of the fixed rod 3 is provided with a second threaded hole 32, and the second threaded rod 421 is threadedly connected to the second threaded hole 32; the second threaded hole 32 and the second threaded rod 421 are provided to facilitate the connection between the moving rod 42 and the fixed rod 3. The outer side walls of the moving rod 42 and the sleeve 41 are both provided with an annular groove 412, and the annular groove 412 is provided to facilitate the driving of the sleeve 41 or the moving rod 42 to rotate.

[0040] Working principle: when it is necessary to adjust the spacing between two adjacent fixed rods 3, first pull the limit rod 53 upwards through the handle 55 to separate the limit rod 53 from the limit hole 54, and then move the fixed rod 3 by moving the steel frame 2, and the movement of the fixed rod 3 drives the moving rod 42 to move in the sleeve 41, and then the movement of the limit rod 53 drives the slider 56 to move, and the movement of the slider 56 presses the spring 58; then observe the moving position of the moving rod 42 through the scale 43, and when the moving rod 42 moves to the appropriate position, first release the handle 55, and at this time the slider 56 drives the limit rod 53 to plug into the limit hole 54 under the action of the spring 58, so that the spacing between the two adjacent fixed rods 3 can be adjusted; the provided adjustment device 4 is convenient for adjusting the spacing between the two adjacent fixed rods 3, and then it is convenient to control the spacing between the two adjacent fixed rods 3.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A heavy-load road base structure, comprising two retaining walls (1), wherein a roadbed base layer (11), a waterproof layer (12), a coal gangue layer (13), a fine sand layer (14), a concrete layer (15), a fiber layer (16) and a roadbed surface layer (17) are sequentially arranged between the two retaining walls (1) from bottom to top, wherein three steel frames (2) are fixedly connected inside the coal gangue layer (13), and a fixing rod (3) is fixedly connected to the upper wall of the steel frame (2), characterized in that: An adjusting device (4) is arranged between two adjacent fixed rods (3), and the adjusting device (4) comprises a sleeve (41) and a moving rod (42) respectively installed between the two adjacent fixed rods (3); a limiting mechanism (5) for limiting the moving rod (42) is installed on the sleeve (41); and a scale (43) is arranged on the side wall of the moving rod (42).

2. A heavy-load road base structure according to claim 1, characterized in that: The limiting mechanism (5) comprises a connecting tube (51) fixedly connected to the outer wall of the sleeve (41), a through hole (52) provided in the side wall of the sleeve (41), and a limiting rod (53) slidably connected to the through hole (52); a plurality of limiting holes (54) are sequentially provided on the side wall of the moving rod (42) along its axial direction; one end of the limiting rod (53) is inserted into the limiting hole (54), and the other end is arranged to pass through the inner cavity of the connecting tube (51) and is fixedly connected to a handle (55).

3. A heavy-load road base structure according to claim 2, characterized in that: A slider (56) is fixedly connected to the outer wall of the limiting rod (53), a sliding groove (57) for the sliding of the slider (56) is provided on the inner wall of the connecting tube (51), a spring (58) is fixedly connected to one side of the slider (56), and one end of the spring (58) away from the slider (56) is fixedly connected to the inner wall of one end of the sliding groove (57).

4. A heavy-load road base structure according to claim 1, characterized in that: Support plates (6) are fixedly connected to both sides of the steel frame (2).

5. A heavy-load road base structure according to claim 4, characterized in that: A connecting plate (7) is fixedly connected to the bottom of the support plate (6), and the connecting plate (7) is fixedly connected to the roadbed layer (11) via expansion bolts (71).

6. A heavy-load road base structure according to claim 1, characterized in that: A first threaded rod (411) is fixedly connected to one end of the sleeve (41) away from the moving rod (42), a first threaded hole (31) is formed on the side wall of the fixed rod (3), and the first threaded rod (411) is threadedly connected to the first threaded hole (31).

7. A heavy-load road base structure according to claim 1, characterized in that: A second threaded rod (421) is fixedly connected to one end of the movable rod (42) away from the sleeve (41), a second threaded hole (32) is formed on the side wall of the fixed rod (3), and the second threaded rod (421) is threadedly connected to the second threaded hole (32).

8. The heavy-load road base structure according to claim 1, characterized in that: The outer side walls of the moving rod (42) and the sleeve (41) are both provided with an annular groove (412).

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