CN210368485U

CN210368485U - Roadbed filling structure

Info

Publication number: CN210368485U
Application number: CN201921186980.3U
Authority: CN
Inventors: 廖扬雄
Original assignee: Hunan Fuhou Traffic Engineering Construction Co Ltd
Current assignee: Hunan Fuhou Traffic Engineering Construction Co Ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-04-21
Anticipated expiration: 2029-07-26

Abstract

The utility model discloses a roadbed filling structure, including rubble soil layer, rubble soil layer's bottom is provided with geogrid, rubble soil layer's top is provided with the slag layer, be provided with lime soil layer on the slag layer, be provided with cement stabilized gravel layer on the lime soil layer, cement stabilized gravel layer upper berth is equipped with asphalt concrete layer, the inside on cement stabilized gravel layer is provided with multiunit horizontal drainage layer, horizontal drainage layer includes geotechnological water proof material layer and is located the geotechnological reinforced material layer of geotechnological water proof material layer top, and each is organized horizontal drainage layer's top all is connected with multiunit slope drainage channel's bottom, slope drainage channel's top all extends to cement stabilized gravel layer's top. This road bed filling structure has advantages such as structural design is reasonable, long service life, can generally use widely.

Description

Roadbed filling structure

Technical Field

The utility model relates to a road construction technical field relates to a road bed filling structure particularly.

Background

At present, the roadbed filling construction process of the domestic building market comprises the following steps: a method for treating roadbed and base course such as sand gravel, lime slag soil, limestone and the like. In the prior art, asphalt concrete layer is laid on the topmost layer of road bed usually, set up cement stabilization gravel layer below asphalt concrete layer, cement stabilization gravel layer has higher intensity, impermeability and frost resistance are better, however, in rainy weather, rainwater infiltration asphalt concrete layer arrives at cement stabilization gravel layer, because cement stabilization gravel layer impermeability is better makes the ponding between cement stabilization gravel layer and the asphalt concrete layer unable in time discharge, ponding can cause the erosion to asphalt concrete layer, harm asphalt concrete layer, asphalt concrete layer's life has been reduced.

Accordingly, there is a need for improvement in the art for the above-mentioned problems.

Disclosure of Invention

Technical scheme

In view of the above-mentioned problems existing in the prior art, an aspect of the present invention is to provide a roadbed filling structure.

In order to achieve the purpose, the utility model provides a roadbed filling structure, which comprises a gravel layer, wherein the bottom of the gravel layer is provided with a geogrid, a slag layer is arranged above the gravel layer, a lime soil layer is arranged on the slag layer, a cement stabilizing gravel layer is arranged on the lime soil layer, an asphalt concrete layer is paved on the cement stabilizing gravel layer, a plurality of groups of horizontal drainage layers are arranged inside the cement stabilizing gravel layer, each horizontal drainage layer comprises a geotechnical waterproof material layer and a geotechnical reinforced material layer positioned above the geotechnical waterproof material layer, the top end of each group of horizontal drainage layer is connected with the bottom ends of a plurality of groups of inclined drainage channels, the top ends of the inclined drainage channels extend to the tops of the cement stabilizing gravel layers, a group of road shoulders extending to the two side surfaces of the asphalt concrete layer are respectively arranged at the two sides of the gravel layer, two ends of each group of horizontal drainage layer respectively extend into the two groups of road shoulders and form water outlets on the side surfaces of the two groups of road shoulders, and a side ditch is arranged on one side, away from the gravel soil layer, of each road shoulder.

Preferably, the bottom of the side face, away from the gravel soil layer, of each group of the road shoulders is provided with a group of waterproof concrete bases respectively, and the side face, away from the gravel soil layer, of each group of the road shoulders is provided with water diversion grooves in one-to-one correspondence with the water outlets.

Preferably, the top of the diversion channel is connected with the water outlet, and the bottom end of the diversion channel extends to the top end of the waterproof concrete base.

Preferably, the width of the water guide groove is gradually increased from top to bottom.

Compared with the prior art, the roadbed filling structure provided by the utility model can rapidly discharge the water body infiltrated from the asphalt concrete layer through the additionally arranged horizontal drainage layer and the inclined drainage channel, thereby avoiding the erosion of the asphalt concrete layer caused by the accumulated water and prolonging the service life of the asphalt concrete layer; guide the water body that flows from the delivery port through the leading gutter, prevent that the concrete foundation that dashes is used for preventing to strike the dirt layer of curb bottom from the water body that the leading gutter flows down, and then prevent that the water from washing away the earth of side ditch bottom surface, avoid the dirt layer of curb bottom to make the bottom of curb unable the obtaining support because of being washed away by the water body, structural design is more reasonable.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

fig. 2 is a schematic structural view of the shoulder of the present invention.

The main reference numbers:

1. a geogrid; 2. a gravel soil layer; 3. a slag layer; 4. a lime soil layer; 5. a cement stabilized rubble layer; 6. a horizontal drainage layer; 7. an inclined drainage channel; 8. an asphalt concrete layer; 9. side ditches; 10. the waterproof concrete base is flushed; 11. a road shoulder; 12. a water outlet; 13. a water diversion groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described below clearly and completely with reference to the accompanying drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the word "comprising" or "comprises", and the like, in this disclosure is intended to mean that the elements or items listed before that word, include the elements or items listed after that word, and their equivalents, without excluding other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present disclosure clear and concise, a detailed description of known functions and known components have been omitted from the present disclosure.

Referring to fig. 1 and 2, the utility model provides a roadbed filling structure, which comprises a gravel layer 2, wherein the gravel layer 2 is laid by mountain field gravel soil to form a firm and stable roadbed construction channel, the thickness of the gravel layer is 80-90 cm, the bottom of the gravel layer 2 is provided with a geogrid 1, the geogrid 1 is used for improving the bearing load of the gravel layer 2, a slag layer 3 is arranged above the gravel layer 2, the thickness of the slag layer 3 is 40-50 cm, a lime layer 4 is arranged on the slag layer 3, the thickness of the lime layer 4 is 60-70 cm, a cement stabilized gravel layer 5 is arranged on the lime layer 4, the thickness of the cement stabilized gravel layer 5 is 45-50 cm, an asphalt concrete layer 8 is laid on the cement stabilized gravel layer 5, the thickness of the asphalt concrete layer 8 is 20-25 cm, a plurality of horizontal drainage layers 6 are arranged inside the cement stabilized gravel layer 5, horizontal drainage layer 6 includes geotechnique's water proof material layer and is located the geotechnique's water proof material layer top adds the muscle material layer, geotechnique adds the muscle material layer and is moulded the geogrid for steel, geotechnique's water proof material layer is the waterproof board, each group's horizontal drainage layer 6 top all is connected with multiunit slope drainage channel 7's bottom, slope drainage channel 7's top all extends to the top that the metalling 5 is stabilized to cement, the both sides on metalling 2 are provided with the curb 11 of a set of both sides face that extends to asphalt concrete layer 8 respectively, each group's horizontal drainage layer 6 both ends extend to in two sets of curb 11 respectively, and form delivery port 12 in the side of two sets of curb 11 respectively, one side that the gravel layer was kept away from to curb 11 is.

As shown in fig. 1 and 2, in a further improvement, a group of waterproof concrete bases 10 are respectively arranged at the bottom of the side surface of each group of road shoulders 11 away from the gravel layer 2, water guide grooves 13 corresponding to the water outlets 12 are respectively formed in the side surface of each group of road shoulders 11 away from the gravel layer 2, and the water guide grooves 13 are used for guiding water flowing out of the water outlets 12.

As shown in fig. 1 and 2, in particular, the top of the water guide groove 13 is connected to the water outlet 12, the bottom end of the water guide groove 13 extends to the top end of the waterproof concrete base 10, the width of the water guide groove 13 gradually increases from top to bottom, and the waterproof concrete base 10 is used for preventing water flowing down from the water guide groove 13 from impacting the soil layer at the bottom of the road shoulder 11.

As shown in fig. 1 and 2, when the roadbed filling structure is used, in rainy weather, rainwater permeates the asphalt concrete layer 8 and reaches the cement stabilized gravel layer 5, enters the horizontal drainage layer 6 through the inclined drainage channel 7 and then flows into the water diversion groove 13 through the water outlet 12, so that water permeated from the asphalt concrete layer 8 is quickly drained, the asphalt concrete layer 8 is prevented from being eroded by accumulated water, and the service life of the asphalt concrete layer 8 is prolonged; the diversion flume 13 is used for guiding the water body flowing out from the water outlet 12, and the water-proof concrete base 10 is used for preventing the water body flowing down from the diversion flume 13 from impacting the mud layer at the bottom of the road shoulder 11, so as to prevent the water body from washing away the mud at the bottom of the side ditch 9, and avoid the mud layer at the bottom of the road shoulder 11 from being washed away by the water body so that the bottom of the road shoulder 11 can not be supported, and the structural design is more reasonable.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.

Claims

1. The utility model provides a road bed filling structure, includes rubble soil layer (2), its characterized in that: the bottom on rubble soil layer (2) is provided with geogrid (1), the top on rubble soil layer (2) is provided with slag layer (3), be provided with lime soil layer (4) on slag layer (3), be provided with cement on lime soil layer (4) and stabilize rubble layer (5), cement is stabilized rubble layer (5) upper berth and is equipped with asphalt concrete layer (8), the inside on cement stabilization rubble layer (5) is provided with multiunit horizontal drainage layer (6), horizontal drainage layer (6) include geotechnique's water-proof material layer and lie in the geotechnique's water-proof material layer top and add the muscle material layer, each group the top of horizontal drainage layer (6) all is connected with the bottom of multiunit slope drainage channel (7), the top of slope drainage channel (7) all extends to the top on cement stabilization rubble layer (5), the both sides on rubble soil layer (2) are provided with a set of each and extend to the both sides face of asphalt concrete layer (8) respectively The road shoulder (11), each group the both ends of horizontal drainage blanket (6) extend to respectively in two sets of road shoulders (11) and form delivery port (12) respectively in the side of two sets of road shoulders (11), one side that rubble soil layer was kept away from in road shoulder (11) is equipped with side ditch (9).

2. A roadbed filling structure according to claim 1, wherein: the bottom of the side face, away from the gravel soil layer (2), of each group of the road shoulder (11) is provided with a group of waterproof concrete bases (10) respectively, and the side face, away from the gravel soil layer (2), of each group of the road shoulder (11) is provided with water diversion grooves (13) in one-to-one correspondence with the water outlets (12).

3. A roadbed filling structure according to claim 2, wherein: the top of the diversion flume (13) is connected with the water outlet (12), and the bottom end of the diversion flume (13) extends to the top end of the waterproof concrete base (10).

4. A roadbed filling structure according to claim 3, wherein: the width of the water guide groove (13) is gradually increased from top to bottom.