Anti-settlement device for highway subgrade

Abstract

The utility model discloses a highway subgrade anti-settlement device which comprises a subgrade and a bottom plate, anti-settlement structures are arranged at four corners of the bottom of the subgrade, a buffer structure is arranged between the subgrade and the bottom plate, and drainage structures are arranged at the top and the bottom of the buffer structure. Compared with the prior art, the anti-settling supporting column has the advantages that the anti-settling supporting column can be conveniently smashed into the stratum, and water can be effectively drained in rainy days to avoid the problem of settling caused by damage to the device due to water seepage of a roadbed and water accumulation between the bearing plate and the placing plate.

Description

Technical Field

[0001] The utility model relates to the technical field of roadbed anti-settling, in particular to a highway roadbed anti-settling device. Background Art

[0002] In highway construction, the biggest difficulty encountered is how to prevent the roadbed from settling. Therefore, during the entire highway construction process, the roadbed is handled with extreme care. Because after the current highway construction, if there is heavy rain or heavy trucks passing by, it will affect the road surface and roadbed. If the foundation is not handled well, it will cause local ground subsidence when it rains heavily or heavy trucks pass by. Because the subsidence area and height are different, long-term contact with the ground or foundation will cause irreparable consequences, causing damage to the entire road surface and posing certain safety hazards to vehicles and people's travel.

[0003] The patent number CN215164245U in the prior art discloses an anti-settling device for highway roadbed, including a load-bearing plate, a supporting column and a slide plate, a group of sliding holes are opened on the top of each slide plate, the bottom end of the load-bearing plate is connected with a lower pressure rod, the bottom end of the lower pressure rod is connected with a cross plate, and a group of oblique rods are arranged on the left and right ends of the cross plate, and a vertical rod is arranged on the bottom end of each oblique rod, the oblique rod is slidably matched with the sliding hole, and the vertical rod is slidably matched with the vertical hole, the front side and the rear side of the top end of each slide plate are connected with the load-bearing rod, and the top end of the load-bearing rod is provided with a gear, the bottom end of the load-bearing plate is opened with a slide rail matched with the gear, and a rack is arranged inside the slide rail, and the rack is fixedly connected to the inner wall of the load-bearing plate, and the gear and the rack are meshed, which is convenient for supporting the middle part of the load-bearing plate, improving the stability of the load-bearing plate and improving practicality.

[0004] However, the patents in the prior art have the following disadvantages:

[0005] (1) The prior art device inserts the support column into the soil layer through a cone block to prevent settlement. However, the anti-sinking rod provided on the support column is inconvenient when the support column is hammered into the ground.

[0006] (2) The devices of the prior art cannot effectively drain water. When it rains, the soil is easily loosened due to water seepage. At the same time, water may accumulate between the load-bearing plate and the placement plate. The accumulated water is difficult to drain, which reduces the service life of the device and causes damage to the roadbed, resulting in settlement. Utility Model Content

[0007] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a device that can not only conveniently hammer the anti-subsidence support column into the ground, but also effectively drain water on rainy days to avoid damage to the device caused by water seepage in the roadbed and water accumulation between the load-bearing plate and the placement plate, thereby causing subsidence.

[0008] In order to solve the above problems, the technical solution of the utility model is: a highway roadbed anti-settling device, comprising a roadbed and a bottom plate, wherein the four corners of the bottom of the roadbed are provided with anti-settling structures, a buffer structure is provided between the roadbed and the bottom plate, and a drainage structure is provided at the top and bottom of the buffer structure;

[0009] The anti-sinking structure comprises a support column, an insertion cone is fixedly connected to the bottom of the support column, a plurality of slide grooves are fixedly connected in the support column, an anti-sinking rod is slidably connected in the slide groove, a limited arc plate is fixedly connected to one side of the anti-sinking rod close to the support column, and a fixed cone rod is slidably connected in the support column;

[0010] The drainage structure comprises a water permeable port, a filter screen is fixedly installed in the water permeable port, a plurality of connecting pipes are fixedly connected to the bottom of the base plate, and the bottom of the connecting pipes is connected to a drainage pipe.

[0011] Furthermore, a waterproof layer is arranged at the bottom of the roadbed, a fine sand and gravel layer is arranged above the waterproof layer, a coarse sand and gravel layer is arranged above the fine sand and gravel layer, and a roadbed surface layer is arranged above the coarse sand and gravel layer.

[0012] Furthermore, the support columns are inserted into the four corners of the bottom plate, the insertion cone is provided with a conical groove matching the bottom end of the fixed cone rod, and the limiting arc plate is fitted with the fixed cone rod.

[0013] Furthermore, the top of the support column is fixedly connected to the top of the roadbed, grooves are opened at the four corners of the top of the roadbed, the top of the fixed cone rod is fixedly connected to a fixed cover, and fixing bolts are threadedly connected between the fixed cover and the four corners of the bottom of the groove.

[0014] Furthermore, the buffer structure includes a plurality of sleeves, the sleeves are fixedly connected to the top of the base plate, a telescopic tube is slidably connected inside the sleeve, a sealing limit ring is fixedly connected to the bottom end of the telescopic tube, and a buffer spring is fixedly sleeved on the outside of the sleeve.

[0015] Furthermore, the bottom of the sleeve passes through the bottom plate and the end is connected to the connecting pipe, the top of the telescopic tube passes through the waterproof layer and the end is fixedly connected to the top of the fine sand and gravel layer, and the water permeable openings are opened on both sides of the top of the telescopic tube.

[0016] The advantages of the utility model compared with the existing technology are:

[0017] (1) The utility model is provided with an anti-sinking structure. Before installation, the anti-sinking rod is put into the slide groove in the support column, the support column is hammered into the ground, and then the fixed cone rod is hammered into the support column to push out the anti-sinking rods one by one. The limiting arc plate is laterally fitted with the outer side of the fixed cone rod, which is convenient for the fixed cone rod to push out the anti-sinking rod. After the anti-sinking rod is pushed out, the anti-sinking rod is parallel to the ground, which increases the contact area between the anti-sinking rod and the ground, reduces the pressure on the ground, improves the anti-sinking effect, and improves the practicality of the device;

[0018] (2) The utility model is provided with a roadbed, a buffer structure and a drainage structure. The coarse gravel layer can disperse the local pressure of vehicles on the roadbed, thereby preventing the roadbed from sinking due to excessive local pressure. At the same time, the coarse gravel layer and the fine gravel layer can filter rainwater that penetrates into the roadbed in turn, thereby playing a filtering role. The provision of a waterproof layer can prevent rainwater in the roadbed from diffusing downward or to the surroundings. At the same time, the filter can filter mud and granular impurities in the rainwater, thereby preventing the pipe from being blocked during drainage. The rainwater is then discharged into the telescopic pipe through the water permeable port, and then discharged into the drainage pipe through the sleeve and the connecting pipe for rapid drainage, thereby improving the drainage efficiency of the roadbed and preventing rainwater from continuing to penetrate downward or to the surroundings and causing settlement damage to the roadbed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structure of the utility model highway roadbed anti-settling device. Figure 1 .

[0020] Figure 2 It is a three-dimensional structure of the utility model highway roadbed anti-settling device. Figure 2 .

[0021] Figure 3 This is a cross-sectional view of the utility model of a highway roadbed anti-settling device Figure 1 .

[0022] Figure 4 This is a cross-sectional view of the utility model of a highway roadbed anti-settling device Figure 2 .

[0023] Figure 5 This is a cross-sectional view of the utility model of a highway roadbed anti-settling device Figure 1 Schematic diagram of the structure at A.

[0024] Figure 6 This is a cross-sectional view of the utility model of a highway roadbed anti-settling device Figure 2 Schematic diagram of the structure at B.

[0025] As shown in the figure: 1. Roadbed; 11. Waterproof layer; 12. Fine sand and gravel layer; 13. Coarse sand and gravel layer; 14. Roadbed surface; 2. Bottom plate; 3. Anti-sinking structure; 31. Support column; 32. Insert cone; 33. Slide; 34. Anti-sinking rod; 35. Limiting arc plate; 36. Fixed cone rod; 37. Fixed cover; 38. Groove; 39. Fixed bolt; 4. Buffer structure; 41. Sleeve; 42. Telescopic tube; 43. Buffer spring; 44. Sealing limit ring; 5. Drainage structure; 51. Drainage pipe; 52. Connecting pipe; 53. Water permeable port; 54. Filter. DETAILED DESCRIPTION

[0026] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings, wherein the same parts are represented by the same reference numerals.

[0027] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0028] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0029] like Figures 1 to 6 As shown, the highway roadbed anti-settling device includes a roadbed 1 and a base plate 2. A waterproof layer 11 is arranged at the bottom of the roadbed 1. The arrangement of the waterproof layer 11 can prevent rainwater in the roadbed 1 from spreading downward or around. A fine gravel layer 12 is arranged above the waterproof layer 11. A coarse gravel layer 13 is arranged above the fine gravel layer 12. The coarse gravel layer 13 can disperse the local pressure of vehicles on the highway roadbed 1 to avoid excessive local pressure on the highway roadbed 1 and settlement. A roadbed surface layer 14 is arranged above the coarse gravel layer 13. The coarse gravel layer 13 and the fine gravel layer 12 can filter the rainwater that penetrates into the roadbed 1 in turn to play a filtering role.

[0030] The four corners at the bottom of the roadbed 1 are provided with an anti-sinking structure 3, which includes a support column 31, the top of the support column 31 is fixedly connected to the top of the roadbed 1, the support column 31 is inserted into the four corners of the bottom plate 2, the bottom of the support column 31 is fixedly connected with an insertion cone 32, a plurality of slide grooves 33 are fixedly connected in the support column 31, an anti-sinking rod 34 is slidably connected in the slide groove 33, a side of the anti-sinking rod 34 close to the support column 31 is fixedly connected with a limited arc plate 35, a fixed cone rod 36 is slidably connected in the support column 31, the insertion cone 32 is provided with a conical groove matching the bottom end of the fixed cone rod 36, the limited arc plate 35 is fitted with the fixed cone rod 36, grooves 38 are provided at the four corners at the top of the roadbed 1, and a fixed cover is fixedly connected to the top of the fixed cone rod 36 37, fixing bolts 39 are threadedly connected between the fixing cover 37 and the four corners of the bottom of the groove 38. During use, the anti-sinking rod 34 is received into the slide groove 33 in the support column 31, the support column 31 is hammered into the formation, and then the fixing cone rod 36 is hammered into the support column 31, the anti-sinking rods 34 are pushed out one by one, and the limiting arc plate 35 is fitted with the outer side of the fixing cone rod 36, so that the fixing cone rod 36 can push the anti-sinking rod 34 out, and then the fixing bolts 39 are tightened to fix the fixing cover 37 and the groove 38 to complete the installation. After the anti-sinking rod 34 is pushed out, the anti-sinking rod 34 is parallel to the ground, which increases the contact area between the anti-sinking rod 34 and the ground, reduces the pressure on the ground, improves the anti-sinking effect, and improves the practicability of the device.

[0031] A buffer structure 4 is provided between the roadbed 1 and the base plate 2. The buffer structure 4 includes a plurality of sleeves 41, which are fixedly connected to the top of the base plate 2. A telescopic tube 42 is slidably connected inside the sleeve 41, and a sealing limit ring 44 is fixedly connected to the bottom end of the telescopic tube 42. A buffer spring 43 is fixedly sleeved on the outer side of the sleeve 41. When the roadbed surface layer 14 is subjected to pressure during use, the plurality of telescopic tubes are subjected to pressure and move downward while squeezing the buffer spring 43 to shrink it. When no force is applied, the buffer spring 43 rebounds under the action of elasticity to drive the roadbed surface layer 14 to reset, thereby improving the compressive resistance of the road surface, having a buffering effect, and avoiding the roadbed surface layer 14 from breaking.

[0032] Drainage structures 5 are provided at the top and bottom of the buffer structure 4. The drainage structure 5 includes a water permeable port 53. The top of the telescopic tube 42 passes through the waterproof layer 11 and the end is fixedly connected to the top of the fine gravel layer 12. The water permeable port 53 is opened on both sides of the top of the telescopic tube 42. A filter screen 54 is fixedly installed in the water permeable port 53. A plurality of connecting pipes 52 are fixedly connected to the bottom of the bottom plate 2. The bottom of the connecting pipe 52 is connected to a drainage pipe 51. The bottom of the sleeve 41 passes through the bottom plate 2 and the end is connected to the connecting pipe 52. When it rains in use, rainwater penetrates from the surface layer 14 of the roadbed, is filtered by the coarse gravel layer 13 and the fine gravel layer 12, and then is filtered by the filter screen 54. The silt and granular impurities in the rainwater are avoided to avoid clogging the pipe during drainage, so that the rainwater is collected into the telescopic tube 42 through the water permeable port 53, and then discharged into the drainage pipe 51 through the sleeve 41 and the connecting pipe 52 for rapid discharge, thereby improving the drainage efficiency of the highway roadbed 1 and avoiding rainwater from continuing to penetrate downward or penetrate to the surroundings to cause settlement and damage to the highway roadbed 1.

[0033] In specific use, first bury the drainage pipe 51 in the soil layer, install the bottom plate 2 and the connecting pipe 52 to the top of the soil layer, and then gradually lay them in the order of the waterproof layer 11, the fine gravel layer 12, the coarse gravel layer 13, and the roadbed surface layer 14. Before installation, the anti-sinking rod 34 is received in the slide groove 33 in the support column 31, and then the support column 31 is hammered into the soil layer, and then the fixed cone rod 36 is hammered into the support column 31 to push out the anti-sinking rod 34 one by one, and then tighten the fixing bolts 39 to complete the installation. When the roadbed surface layer 14 is subjected to the pressure of vehicle movement, the coarse gravel layer 13 can disperse the local pressure of the vehicle on the highway roadbed 1, so as to avoid the local pressure of the highway roadbed 1 being too large and causing settlement. At the same time, the telescopic tube 42 is pressed downward and squeezes the buffer spring 43 to shrink it. When no force is applied, the buffer spring 43 rebounds under the action of elasticity to drive the roadbed surface layer 14 to reset, thereby improving the compressive resistance of the road surface and having a buffering effect to prevent the roadbed surface layer 14 from breaking. When it rains, the coarse gravel layer 13 and the fine gravel layer 12 can filter the rainwater that penetrates into the roadbed 1 in turn, thereby playing a filtering role. The setting of the waterproof layer 11 can prevent the rainwater in the roadbed 1 from diffusing downward or around. At the same time, the filter screen 54 can filter the mud and granular impurities in the rainwater to avoid clogging the pipe during drainage, so that the rainwater flows into the telescopic pipe 42 through the water permeable port 53, and then is discharged into the drainage pipe 51 through the sleeve 41 and the connecting pipe 52 for rapid discharge, thereby improving the drainage efficiency of the highway roadbed 1 and preventing the rainwater from continuing to penetrate downward or around and causing settlement damage to the highway roadbed 1.

[0034] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A highway roadbed anti-settling device, comprising a roadbed (1) and a base plate (2), characterized in that: Anti-settling structures (3) are provided at the four corners of the bottom of the roadbed (1), a buffer structure (4) is provided between the roadbed (1) and the bottom plate (2), and drainage structures (5) are provided at the top and bottom of the buffer structure (4); The anti-sinking structure (3) comprises a support column (31), an insertion cone (32) is fixedly connected to the bottom of the support column (31), a plurality of slide grooves (33) are fixedly connected inside the support column (31), an anti-sinking rod (34) is slidably connected inside the slide groove (33), a limiting arc plate (35) is fixedly connected to the side of the anti-sinking rod (34) close to the support column (31), and a fixed cone rod (36) is slidably connected inside the support column (31); The drainage structure (5) comprises a water permeable port (53), a filter screen (54) is fixedly installed in the water permeable port (53), a plurality of connecting pipes (52) are fixedly connected to the bottom of the base plate (2), and the bottom of the connecting pipe (52) is connected to a drainage pipe (51).

2. The highway subsidence prevention device according to claim 1 is characterized in that: A waterproof layer (11) is arranged at the bottom of the roadbed (1), a fine gravel layer (12) is arranged above the waterproof layer (11), a coarse gravel layer (13) is arranged above the fine gravel layer (12), and a roadbed surface layer (14) is arranged above the coarse gravel layer (13).

3. The highway subsidence prevention device according to claim 1 is characterized in that: The support column (31) is inserted into the four corners of the bottom plate (2), the insertion cone (32) is provided with a conical groove matching the bottom end of the fixed cone rod (36), and the limiting arc plate (35) is fitted with the fixed cone rod (36).

4. The highway subsidence prevention device according to claim 3 is characterized in that: The top of the support column (31) is fixedly connected to the top of the roadbed (1), and grooves (38) are provided at four corners of the top of the roadbed (1). The top of the fixed cone rod (36) is fixedly connected to a fixed cover (37), and fixing bolts (39) are threadedly connected between the fixed cover (37) and the four corners of the bottom of the groove (38).

5. The highway subsidence prevention device according to claim 1, characterized in that: The buffer structure (4) comprises a plurality of sleeves (41), wherein the sleeves (41) are fixedly connected to the top of the base plate (2), a telescopic tube (42) is slidably connected inside the sleeve (41), a sealing limit ring (44) is fixedly connected to the bottom end of the telescopic tube (42), and a buffer spring (43) is fixedly sleeved on the outside of the sleeve (41).

6. The highway subsidence prevention device according to claim 5 is characterized in that: The bottom of the sleeve (41) passes through the bottom plate (2) and the end is connected to the connecting pipe (52); the top of the telescopic pipe (42) passes through the waterproof layer (11) and the end is fixedly connected to the top of the fine sand and gravel layer (12); the water permeable opening (53) is opened on both sides of the top of the telescopic pipe (42).

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