Roadbed structure of soft foundation pavement

Abstract

The utility model discloses a roadbed structure of a soft foundation pavement, which relates to the field of soft foundation pavements and comprises a bearing roadbed arranged on the upper side of a soil main body and a plurality of groups of first transverse guide pipes, second transverse guide pipes are fixedly connected to two ends of the first transverse guide pipes, and inclined guide pipes are fixedly connected to two end parts of the two groups of second transverse guide pipes. Vertical guide pipes are fixedly connected to the middle positions of the upper sides of the first transverse guide pipes, a water guide groove is formed in the middle position of the upper side of the bearing roadbed, a screen is arranged at the inner top of the water guide groove, the first transverse guide pipes are distributed on the bearing roadbed at equal intervals in a penetrating mode, and the first transverse guide pipes are perpendicular to the two second transverse guide pipes. The subgrade structure has the advantages that accumulated water on the road surface can be prevented from directly permeating into soil on the lower side of the bearing subgrade, the stability of the subgrade structure is ensured, the subgrade structure can be prevented from sinking in the long-term use process, and the subgrade structure has a good anti-settling function.

Description

Technical Field

[0001] The utility model relates to the field of soft foundation pavement, and particularly relates to a subgrade structure of a soft foundation pavement. Background Art

[0002] A soft foundation pavement refers to a road built on a soft soil foundation. Such a foundation usually has low bearing capacity, high compressibility and high water content, and is prone to settlement and deformation under external forces. In order to ensure the stability and bearing capacity of the soft foundation pavement, a subgrade structure of the soft foundation pavement needs to be designed to improve the long-term service performance and safety of the road.

[0003] After retrieval, the patent number CN211057527U discloses a subgrade structure of a soft foundation pavement. By setting up base piles and connecting rods, the traction force between the base piles and the connecting rods can be used to prevent the base piles from tilting or shaking horizontally, thereby reducing the deformation of the subgrade. However, when this subgrade structure of the soft foundation pavement is in use, the surface water on its upper side is likely to seep into the soil directly below the subgrade structure, causing the subgrade to collapse, and the stability is poor. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a subgrade structure of a soft foundation pavement. When the existing subgrade structure of the soft foundation pavement is in use, the surface water on its upper side is likely to seep into the soil directly below the subgrade structure, causing the subgrade to collapse, and the stability is poor.

[0005] To solve the above technical problem, the technical solution of the utility model is that a subgrade structure of a soft foundation pavement includes a bearing subgrade arranged on the upper side of the soil main body, and also includes a plurality of groups of first horizontal conduits. Both ends of each first horizontal conduit are fixedly connected with second horizontal conduits. Both ends of the two groups of second horizontal conduits are fixedly connected with inclined conduits. The middle position on the upper side of the plurality of groups of first horizontal conduits is fixedly connected with vertical conduits. A water guide groove is opened at the middle position on the upper side of the bearing subgrade, and a screen is arranged at the inner top of the water guide groove.

[0006] As a further scheme of the utility model: The plurality of groups of first horizontal conduits are arranged in a uniformly spaced manner through the bearing subgrade. The plurality of groups of first horizontal conduits are all perpendicular to the two groups of second horizontal conduits. The plurality of groups of vertical conduits are respectively perpendicular to the plurality of groups of first horizontal conduits.

[0007] As a further scheme of the utility model: The upper ends of the plurality of groups of vertical conduits are all located inside the water guide groove. Plugging rods are fixedly connected to the positions near the corners on the lower surface of the screen. Plugging grooves are opened at the inner corner positions of the water guide groove, and the four plugging rods are respectively fitted with the four plugging grooves.

[0008] As a further solution of the utility model: a filter screen is fixedly connected to the lower surface of the sieve mesh, and the cross-sectional shape of the filter screen is arc-shaped.

[0009] As a further solution of the utility model: transverse groove shells are fixedly connected to the lower surface of the load-bearing roadbed near both side edges, rotary knobs are arranged at the middle positions of the two transverse groove shells, transverse threaded rods penetrating through the transverse groove shells are fixedly connected to both sides of the rotary knobs, the external threads of the two transverse threaded rods are symmetrically arranged, sliding blocks are sleeved on the outer sides of the transverse threaded rods, transverse soil inserting rods are fixedly connected to the outer sides of the four sliding blocks, and a plurality of vertical soil inserting rods are fixedly connected to the lower surface of the load-bearing roadbed.

[0010] As a further solution of the utility model: the four sliding blocks are respectively located inside the two transverse groove shells, and the sliding blocks are in threaded connection with the transverse threaded rods.

[0011] As a further solution of the utility model: a plurality of the vertical soil inserting rods are fixedly connected to the lower surface of the load-bearing roadbed at equal intervals and uniformly, a plurality of soil grooves are formed in the soil main body at equal intervals and uniformly, and the plurality of vertical soil inserting rods respectively fit with the plurality of soil grooves.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: through the cooperation of the sieve mesh and the filter screen with the water guide groove, the accumulated water on the road surface is filtered into the plurality of vertical guide pipes, and then the water in the plurality of vertical guide pipes is respectively introduced into the two second transverse guide pipes through the plurality of first transverse guide pipes, and then the water is respectively introduced into both sides of the load-bearing roadbed through the four inclined guide pipes, which can avoid the accumulated water on the road surface from directly seeping into the soil under the load-bearing roadbed and ensure the stability of the roadbed structure.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: through the cooperation of the plurality of vertical soil inserting rods and the plurality of soil grooves, the load-bearing roadbed is initially placed on the upper side of the soil main body, and then the rotary knob at the middle position of the transverse groove shell is rotated to drive the two transverse threaded rods to rotate together, so that the two sliding blocks move relatively along the transverse groove shell under the cooperation of the symmetric external threads, and further drive the four transverse soil inserting rods to move relatively until the four transverse soil inserting rods are respectively inserted into the soil on both sides of the load-bearing roadbed. At the same time, inclined guide pipes inserted into the soil are arranged, which can avoid the settlement of the roadbed structure during long-term use and has a good anti-settlement function. Description of the drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of a roadbed structure of a soft base road surface in an embodiment of the utility model;

[0015] Figure 2 It is a schematic diagram of the connection structure between the load-bearing roadbed and the sieve mesh in an embodiment of the utility model;

[0016] Figure 3 It is a schematic diagram of the distribution structure of the first horizontal conduit and the second horizontal conduit in the embodiment of the present utility model;

[0017] Figure 4 It is a schematic diagram of the connection structure of the horizontal groove housing in the embodiment of the present utility model.

[0018] In the figure: 1, load-bearing roadbed; 2, water guide groove; 3, screen; 4, insertion rod; 5, insertion slot; 6, vertical conduit; 7, first horizontal conduit; 8, second horizontal conduit; 9, inclined conduit; 10, soil body; 11, filter net; 12, vertical soil insertion rod; 13, horizontal groove housing; 14, rotary knob; 15, horizontal threaded rod; 16, sliding block; 17, horizontal soil insertion rod; 18, soil groove. Specific embodiments

[0019] The following further describes the specific embodiments of the present utility model with reference to the accompanying drawings. It should be noted here that the description of these embodiments is used to help understand the present utility model, but does not constitute a limitation to the present utility model. In addition, the technical features involved in the following various embodiments of the present utility model can be combined with each other as long as they do not conflict with each other.

[0020] Embodiment 1, please refer to Figures 1-4 , a roadbed structure for a soft base pavement, including a load-bearing roadbed 1 arranged on the upper side of the soil body 10, and further including a plurality of groups of first horizontal conduits 7. Both ends of the first horizontal conduits 7 are fixedly connected with second horizontal conduits 8. Both ends of the two groups of second horizontal conduits 8 are fixedly connected with inclined conduits 9. The middle positions on the upper sides of the plurality of groups of first horizontal conduits 7 are fixedly connected with vertical conduits 6. A water guide groove 2 is opened at the middle position on the upper side of the load-bearing roadbed 1. A screen 3 is arranged at the inner top of the water guide groove 2.

[0021] The plurality of groups of first horizontal conduits 7 are distributed through the load-bearing roadbed 1 at equal intervals. The plurality of groups of first horizontal conduits 7 are all perpendicular to the two groups of second horizontal conduits 8. The plurality of groups of vertical conduits 6 are respectively perpendicular to the plurality of groups of first horizontal conduits 7.

[0022] In this embodiment, the water in the vertical conduit 6 is introduced into the interior of the second horizontal conduit 8 through the first horizontal conduit 7.

[0023] The upper ends of the plurality of groups of vertical conduits 6 are all located inside the water guide groove 2. Insertion rods 4 are fixedly connected to the lower surfaces of the screen 3 near the corners. Insertion slots 5 are opened at the inner corners of the water guide groove 2. And the four groups of insertion rods 4 are respectively fitted with the four groups of insertion slots 5. A filter net 11 is fixedly connected to the lower surface of the screen 3. The cross-sectional shape of the filter net 11 is arc-shaped.

[0024] In this embodiment, the installation and use of the screen 3 are facilitated through the cooperation of four groups of insertion rods 4 and four groups of insertion slots 5.

[0025] Specifically, through the cooperation of the screen 3 and the filter screen 11 with the water guide groove 2, the accumulated water on the road surface is filtered into the interior of several groups of vertical conduits 6, and then the water in several groups of vertical conduits 6 is respectively introduced into the interior of two groups of second horizontal conduits 8 through several groups of first horizontal conduits 7. Then, the water is respectively introduced into both sides of the load-bearing roadbed 1 through four groups of inclined conduits 9, which can prevent the accumulated water on the road surface from directly seeping into the soil under the load-bearing roadbed 1 and ensure the stability of the roadbed structure.

[0026] Example 2, please refer to Figures 1-4 , a roadbed structure for a soft foundation road surface. At both sides near the edge positions of the lower surface of the load-bearing roadbed 1, there are fixed connection with horizontal groove shells 13. In the middle positions of the two groups of horizontal groove shells 13, there are rotation knobs 14. On both sides of the rotation knob 14, there are fixed connection with horizontal threaded rods 15 passing through the horizontal groove shells 13. The external threads of the two groups of horizontal threaded rods 15 are symmetrically arranged. Sliding blocks 16 are sleeved on the outer sides of the horizontal threaded rods 15. On the outer sides of the four groups of sliding blocks 16, there are fixed connection with horizontal soil insertion rods 17. On the lower surface of the load-bearing roadbed 1, there are fixed connection with several groups of vertical soil insertion rods 12.

[0027] The four groups of sliding blocks 16 are respectively located inside the two groups of horizontal groove shells 13, and the sliding blocks 16 are in threaded connection with the horizontal threaded rods 15.

[0028] In this embodiment, the movement and use of the horizontal soil insertion rods 17 are facilitated through the threaded connection between the sliding blocks 16 and the horizontal threaded rods 15.

[0029] Several groups of vertical soil insertion rods 12 are fixedly connected to the lower surface of the load-bearing roadbed 1 at equal intervals and evenly. On the soil body 10, several groups of soil grooves 18 are opened at equal intervals and evenly, and several groups of vertical soil insertion rods 12 respectively fit with several groups of soil grooves 18.

[0030] In this embodiment, the placement and use of the load-bearing roadbed 1 are facilitated through the cooperation of several groups of vertical soil insertion rods 12 and several groups of soil grooves 18.

[0031] Specifically, through the cooperation of several groups of vertical soil insertion rods 12 and several groups of soil grooves 18, the load-bearing roadbed 1 is initially placed on the upper side of the soil body 10. Then, rotate the rotation knob 14 in the middle of the horizontal groove shell 13 to drive the two groups of horizontal threaded rods 15 to rotate together. Thus, under the cooperation of the symmetric external threads, drive the two groups of sliding blocks 16 to move relatively along the horizontal groove shell 13, and then drive the four groups of horizontal soil insertion rods 17 to move relatively until the four groups of horizontal soil insertion rods 17 are respectively inserted into the soil on both sides of the load-bearing roadbed 1. At the same time, there are inclined conduits 9 inserted into the soil, which can prevent the roadbed structure from sinking during long-term use and has a good anti-settlement function.

[0032] The above has described the embodiments of the present utility model in detail with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present utility model, various changes, modifications, substitutions, and variations made to these embodiments still fall within the protection scope of the present utility model.

Claims

1. A roadbed structure for a soft-base road surface, comprising a bearing roadbed (1) arranged on the upper side of a soil body (10), characterized in that: It also comprises a plurality of groups of first transverse conduits (7), both ends of the first transverse conduits (7) are fixedly connected to second transverse conduits (8), both ends of two groups of the second transverse conduits (8) are fixedly connected to inclined conduits (9), a plurality of groups of the first transverse conduits (7) are fixedly connected to vertical conduits (6) at the middle position on the upper side, a water guide trough (2) is provided at the middle position on the upper side of the bearing roadbed (1), and a screen (3) is provided at the inner top of the water guide trough (2).

2. The roadbed structure of a soft base road surface according to claim 1, characterized in that: Several groups of the first transverse conduits (7) are evenly spaced and distributed throughout the bearing roadbed (1); several groups of the first transverse conduits (7) are vertically arranged with the two groups of the second transverse conduits (8); and several groups of the vertical conduits (6) are vertically arranged with the several groups of the first transverse conduits (7).

3. The roadbed structure of a soft base road surface according to claim 1, characterized in that: The upper ends of the plurality of groups of vertical guide tubes (6) are all located inside the water guide groove (2), the lower surface of the screen (3) is fixedly connected with a plug-in rod (4) near the corner position, the inner corner position of the water guide groove (2) is provided with a plug-in groove (5), and the four groups of plug-in rods (4) are respectively matched with the four groups of plug-in grooves (5).

4. The roadbed structure of a soft base road surface according to claim 3, characterized in that: The lower surface of the screen (3) is fixedly connected to a filter (11), and the cross-section of the filter (11) is arranged in an arc shape.

5. The roadbed structure of a soft base road surface according to claim 1, characterized in that: The lower surface of the bearing roadbed (1) is fixedly connected to a transverse groove shell (13) near the edge positions on both sides, and a rotating knob (14) is provided in the middle position of the two groups of the transverse groove shells (13). The two sides of the rotating knob (14) are fixedly connected to a transverse threaded rod (15) penetrating the transverse groove shell (13). The external threads of the two groups of the transverse threaded rods (15) are symmetrically arranged. The outer sides of the transverse threaded rods (15) are sleeved with sliding blocks (16). The outer sides of the four groups of sliding blocks (16) are fixedly connected to transverse soil rods (17). The lower surface of the bearing roadbed (1) is fixedly connected to a plurality of groups of vertical soil rods (12).

6. The roadbed structure of a soft base road surface according to claim 5, characterized in that: The four groups of sliding blocks (16) are respectively located inside the two groups of transverse groove shells (13), and the sliding blocks (16) are threadedly connected to the transverse threaded rods (15).

7. The roadbed structure of a soft base road surface according to claim 5, characterized in that: A plurality of groups of vertically inserted soil rods (12) are evenly fixed to the lower surface of the bearing roadbed (1) at equal intervals, a plurality of groups of soil grooves (18) are evenly opened on the soil body (10) at equal intervals, and the plurality of groups of vertically inserted soil rods (12) are respectively matched with the plurality of groups of soil grooves (18).

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