Roadbed anti-settlement structure

Abstract

The utility model discloses a subgrade anti-settlement structure, and relates to the technical field of subgrade construction. Comprising a roadbed layer, a waterproof layer, an outer wall top fixedly arranged on the roadbed layer, a drainage layer, an outer wall top fixedly arranged on the waterproof layer and an anti-sedimentation mechanism arranged on the drainage layer, the anti-sedimentation mechanism comprises a plurality of supporting steel rods and anti-sedimentation parts, and the supporting steel rods are fixedly embedded in the outer wall top of the roadbed layer. According to the roadbed anti-sedimentation structure, through the anti-sedimentation mechanism, the overall rigidity of the roadbed can be enhanced, the upper load can be effectively dispersed, sedimentation caused by too large local pressure can be reduced, through the waterproof layer on the roadbed layer, direct contact between water sources such as rainwater and underground water and the roadbed layer can be isolated, and erosion and softening effects of water on the roadbed layer are avoided; surface water is quickly drained through the drainage layer, so that the damage of the surface water to a roadbed layer and a pavement is reduced, and the problems that roadbed soil is excessively softened and the bearing capacity is reduced are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to roadbed construction technical field, concretely is a roadbed anti -settlement structure. BACKGROUND

[0002] The roadbed is the bearing base of track or pavement, and the quality of the roadbed will affect the overall bearing quality of the whole pavement or track during construction, and during the construction of the roadbed, various bearing layers are laid on the underside of the pavement, so that the various bearing layers increase the load of the roadbed through mutual assistance and improve the bearing strength of the roadbed.

[0003] The roadbed settlement is often closely related to improper water management, especially in rainy areas or areas rich in groundwater, the accumulation of water in the roadbed is one of the main reasons for settlement, and the traditional roadbed structure has defects in drainage design, and often cannot effectively drain the water in the roadbed, resulting in high soil humidity, soil softening, and decreased bearing capacity, and further causing settlement. SUMMARY

[0004] The utility model provides a kind of roadbed anti -settlement structure, through anti -settlement mechanism, the overall rigidity of roadbed can be enhanced, upper load can also be effectively dispersed, settlement caused by excessive local pressure is reduced, through waterproof layer on roadbed layer, the direct contact of water source such as rainwater, groundwater and roadbed layer can be insulated, to avoid the erosion and softening effect of water on roadbed layer, through drainage layer, surface water is rapidly excluded, to reduce the harm of surface water to roadbed layer and pavement, so that roadbed soil avoids the problems of excessive softening and decreased bearing capacity.

[0005] To achieve the above object, the utility model is realized by the following technical scheme: a kind of roadbed anti -settlement structure, comprising:

[0006] Roadbed layer;

[0007] Waterproof layer, fixedly arranged on the top of the outer wall of the roadbed layer;

[0008] Drainage layer, fixedly arranged on the top of the outer wall of the waterproof layer;

[0009] Anti -settlement mechanism is arranged on the drainage layer, and the anti -settlement mechanism includes a plurality of support steel poles and anti -settlement components, the support steel pole is fixedly embedded in the top of the outer wall of the roadbed layer, and the anti -settlement component is arranged on the support steel pole;

[0010] Asphalt surface layer is arranged on the anti -settlement mechanism.

[0011] Further, the waterproof layer includes emulsified asphalt lower seal layer and geodetic drainage plate, the geodetic drainage plate is fixedly arranged on the top of the outer wall of the roadbed layer, and the emulsified asphalt lower seal layer is fixedly arranged on the top of the outer wall of the geodetic drainage plate.

[0012] Further, the drainage layer comprises a pervious concrete layer, a polyester geotextile and a plurality of drainage pipes, each drainage pipe is fixedly arranged at the top of the outer wall of the emulsified asphalt lower seal layer, the polyester geotextile is fixedly arranged at the top of the outer wall of the drainage pipe, and the pervious concrete layer is fixedly arranged at the top of the outer wall of the polyester geotextile.

[0013] Further, the anti-settling component comprises a first supporting net and a second supporting net, the first supporting net is fixedly embedded at the top of the outer wall of the emulsified asphalt lower seal layer, the second supporting net is fixedly arranged at the top of the outer wall of the pervious concrete layer, and the first supporting net and the second supporting net are both fixedly arranged between each supporting steel pole.

[0014] Further, the outer wall of each supporting steel pole is fixedly arranged with a limiting plate, and each limiting plate is located above the polyester geotextile.

[0015] Further, the asphalt surface layer is fixedly arranged at the top of the outer wall of the second supporting net.

[0016] The utility model provides a kind of roadbed anti-settling structure.It has the following beneficial effects:

[0017] (1), the roadbed anti-settling structure, by anti-settling mechanism, can enhance the overall rigidity of roadbed, can also effectively disperse upper load, reduce the settlement caused by local excessive pressure.

[0018] (2), the roadbed anti-settling structure, by waterproof layer on roadbed layer, can isolate rainwater, groundwater and the direct contact of water source with roadbed layer, avoid the erosion and softening effect of moisture to roadbed layer, by drainage layer, surface water is rapidly excluded, to reduce the harm of surface water to roadbed layer and pavement, make roadbed soil avoid the problem of excessive softening and bearing capacity drop. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 it is the perspective view of the utility model;

[0020] Fig. 2 it is the sectional view of the utility model;

[0021] Fig. 3 it is the explosion drawing of the utility model.

[0022] In the drawing: 1, roadbed layer;2, waterproof layer;201, emulsified asphalt lower seal layer;202, geodraining plate;3, drainage layer;301, pervious concrete layer;302, polyester geotextile;303, drainage pipe;4, anti-settling mechanism;401, supporting steel pole;402, first supporting net;403, second supporting net;5, asphalt surface layer;6, limiting plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figs. 1-3 The utility model provides a technical scheme: a roadbed anti-settlement structure, comprising:

[0025] A roadbed layer 1;

[0026] A waterproof layer 2 is fixedly arranged on the top of the outer wall of the roadbed layer 1;

[0027] A drainage layer 3 is fixedly arranged on the top of the outer wall of the waterproof layer 2;

[0028] An anti-settlement mechanism 4 is arranged on the drainage layer 3, and the anti-settlement mechanism 4 comprises a plurality of support steel bars 401 and an anti-settlement component, the support steel bars 401 are fixedly embedded on the top of the outer wall of the roadbed layer 1, and the anti-settlement component is arranged on the support steel bars 401;

[0029] An asphalt surface layer 5 is arranged on the anti-settlement mechanism 4.

[0030] In the embodiment, the waterproof layer 2 on the roadbed layer 1 can prevent water sources such as rainwater and underground water from directly contacting the roadbed layer 1, so as to avoid the erosion and softening effect of water on the roadbed layer 1. The drainage layer 3 can quickly drain surface water, so as to reduce the harm of surface water to the roadbed layer 1 and the pavement, and ensure that the roadbed layer 1 and the pavement have sufficient strength and stability. The anti-settlement mechanism 4 can enhance the overall rigidity of the roadbed, effectively disperse the upper load, and reduce the settlement caused by excessive local pressure. The support steel bars 401 can support the anti-settlement component. The anti-settlement component can increase the overall stability of the roadbed.

[0031] Specifically, the waterproof layer 2 comprises an emulsified asphalt lower seal layer 201 and a geodraining board 202, the geodraining board 202 is fixedly arranged on the top of the outer wall of the roadbed layer 1, and the emulsified asphalt lower seal layer 201 is fixedly arranged on the top of the outer wall of the geodraining board 202.

[0032] In the embodiment, the emulsified asphalt lower seal layer 201 and the geodraining board 202 can prevent water from seeping downward through the pavement gap. The emulsified asphalt lower seal layer 201 can drain the water along its surface in time, so as to maintain the dry state of the roadbed layer 1.

[0033] Specifically, the drainage layer 3 comprises a pervious concrete layer 301, a polyester geotextile 302, and a plurality of drainage pipes 303, each of which is fixedly arranged at the top of the outer wall of the emulsified asphalt lower seal layer 201, the polyester geotextile 302 is fixedly arranged at the top of the outer wall of the drainage pipe 303, and the pervious concrete layer 301 is fixedly arranged at the top of the outer wall of the polyester geotextile 302.

[0034] In this embodiment, the pervious concrete layer 301 has good water permeability and can quickly collect and disperse rainwater, the polyester geotextile 302 covers the drainage pipe 303 to prevent the holes on the drainage pipe 303 from being blocked, thereby affecting the drainage effect, and the drainage pipe 303 is responsible for draining the collected rainwater.

[0035] Specifically, the anti-settling component comprises a first support net 402 and a second support net 403, the first support net 402 is fixedly embedded in the top of the outer wall of the emulsified asphalt lower seal layer 201, and the second support net 403 is fixedly arranged at the top of the outer wall of the pervious concrete layer 301, and the first support net 402 and the second support net 403 are both fixedly arranged between each support steel pole 401.

[0036] In this embodiment, the first support net 402 and the second support net 403 are both made of high-strength and corrosion-resistant steel mesh, which can enhance the overall rigidity of the roadbed.

[0037] Specifically, the outer wall of each support steel pole 401 is fixedly provided with a limiting plate 6, and each limiting plate 6 is located above the polyester geotextile 302.

[0038] In this embodiment, each support steel pole 401 penetrates the bottom of the outer wall of the polyester geotextile 302, and through the cooperation of the support steel pole 401 and the limiting plate 6, the stability of the installation of the polyester geotextile 302 can be increased, and the polyester geotextile 302 is prevented from being easily moved, thereby preventing the drainage pipe 303 from being blocked.

[0039] Specifically, the asphalt surface layer 5 is fixedly arranged at the top of the outer wall of the second support net 403.

[0040] In this embodiment, the second support net 403 supports the asphalt surface layer 5 and increases the stability of the asphalt surface layer 5.

[0041] In use, the water seeping down through the pavement joints is prevented by the emulsified asphalt underseal coat 201 and the geodrains 202, the emulsified asphalt underseal coat 201 is capable of draining these water along its surface in time, thereby keeping the road base 1 dry, and is capable of isolating the water source such as rainwater, underground water, etc. from directly contacting the road base 1, avoiding the erosion and softening effect of the water on the road base 1, through the pervious concrete layer 301, the polyester geotextile 302 and the plurality of drainage pipes 303, the surface water can be quickly drained, so as to reduce the harm of the surface water to the road base 1 and the pavement, and ensure that the road base 1 and the pavement have sufficient strength and stability, through the anti-settling mechanism 4, the overall rigidity of the road base is enhanced, and the upper load can be effectively dispersed, and the settlement caused by excessive local pressure is reduced.

[0042] The above merely describes a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, should be covered within the protection scope of the present application.

Claims

1. A subgrade settlement prevention structure, characterized by, It includes: Roadbed layer (1); Waterproof layer (2), fixedly arranged on the top of the outer wall of the roadbed layer (1); Drainage layer (3), fixedly arranged on the top of the outer wall of the waterproof layer (2); Anti-settlement mechanism (4), arranged on the drainage layer (3), the anti-settlement mechanism (4) includes a plurality of support steel bars (401) and an anti-settlement component, the support steel bars (401) are fixedly embedded on the top of the outer wall of the roadbed layer (1), and the anti-settlement component is arranged on the support steel bars (401); Asphalt surface layer (5), arranged on the anti-settlement mechanism (4).

2. A subgrade settlement prevention structure according to claim 1, characterized in that: The waterproof layer (2) includes an emulsified asphalt lower seal layer (201) and a geodraining plate (202), the geodraining plate (202) is fixedly arranged on the top of the outer wall of the roadbed layer (1), and the emulsified asphalt lower seal layer (201) is fixedly arranged on the top of the outer wall of the geodraining plate (202).

3. A subgrade settlement prevention structure according to claim 2, wherein: The drainage layer (3) includes a pervious concrete layer (301), a polyester geotextile (302) and a plurality of drainage pipes (303), each drainage pipe (303) is fixedly arranged on the top of the outer wall of the emulsified asphalt lower seal layer (201), the polyester geotextile (302) is fixedly arranged on the top of the outer wall of the drainage pipe (303), and the pervious concrete layer (301) is fixedly arranged on the top of the outer wall of the polyester geotextile (302).

4. A subgrade settlement prevention structure according to claim 3, wherein: The anti-settlement component includes a first support net (402) and a second support net (403), the first support net (402) is fixedly embedded on the top of the outer wall of the emulsified asphalt lower seal layer (201), the second support net (403) is fixedly arranged on the top of the outer wall of the pervious concrete layer (301), and the first support net (402) and the second support net (403) are fixedly arranged between each support steel bar (401).

5. A subgrade settlement prevention structure according to claim 4, wherein: The outer wall of each support steel bar (401) is fixedly provided with a limiting plate (6), and each limiting plate (6) is located above the polyester geotextile (302).

6. A subgrade settlement prevention structure according to claim 5, wherein: The asphalt surface layer (5) is fixedly arranged on the top of the outer wall of the second support net (403).

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