CN212025802U

CN212025802U - Highway subgrade structure capable of preventing subgrade from softening

Info

Publication number: CN212025802U
Application number: CN202020251752.6U
Authority: CN
Inventors: 刘爽; 宁荩乙; 李宝国
Original assignee: China Construction Second Engineering Bureau Co Ltd
Current assignee: China Construction Second Engineering Bureau Co Ltd
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2020-11-27
Anticipated expiration: 2030-03-04

Abstract

The utility model discloses a can prevent softened highway roadbed structure of road bed, including the road bed body, the fixed embankment that is equipped with in bottom of road bed body, the top of embankment is down through the top fixed connection of first prevention of seepage geotechnological cloth and last embankment, and the bottom fixed connection of second prevention of seepage geotechnological cloth and lower roadbed is passed through on the top of going up the embankment, and the bottom fixed connection of third prevention of seepage geotechnological cloth and last roadbed is passed through on the top of lower roadbed, and the both sides of road bed body are all fixed and are equipped with the slope, the beneficial effects of the utility model are that: the utility model relates to a can prevent highway roadbed structure that road bed is softened sets up first prevention of seepage geotechnological cloth, second prevention of seepage geotechnological cloth and third prevention of seepage geotechnological cloth respectively through the contact surface of embankment under with last embankment, the contact surface of going up embankment and lower embankment, lower embankment and last embankment, is convenient for be under construction to can improve embankment and last embankment down, go up embankment and lower embankment, lower embankment and last stability and water impermeability between the embankment.

Description

Highway subgrade structure capable of preventing subgrade from softening

Technical Field

The utility model relates to a highway roadbed structure, in particular to can prevent highway roadbed structure that the road bed softens belongs to highway roadbed technical field.

Background

The roadbed is a strip-shaped structure which is built according to a route position and certain technical requirements and serves as a pavement foundation, is a highway foundation, is a linear structure built by soil or stones, is built under good geological, hydrological and climatic conditions, is divided into three types, namely an roadbed, a stone roadbed and an earth-stone roadbed, and is characterized in that a reinforcing layer is not arranged between a embankment and a roadbed of a common expressway roadbed, so that instability between the embankment and the roadbed is easily caused, the roadbed is softened, the contact area between a slope protection plate of the common expressway roadbed and a slope of the roadbed is small, the firmness is poor, and soil body loss is easily caused if the slope protection plate falls off.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can prevent highway roadbed structure that the road bed softens to do not have the enhancement layer between the embankment of the general highway roadbed that provides in solving above-mentioned background art and the roadbed, lead to the problem of unstability between embankment and the roadbed easily.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a can prevent softened highway roadbed structure of road bed, includes the road bed body, the fixed embankment that is equipped with down in bottom of road bed body, the top of embankment is down through the top fixed connection of first prevention of seepage geotechnological cloth and last embankment, the bottom fixed connection of second prevention of seepage geotechnological cloth and lower roadbed is passed through on the top of going up the embankment, the bottom fixed connection of third prevention of seepage geotechnological cloth and last roadbed is passed through on the top of roadbed, the both sides of road bed body are all fixed and are equipped with the slope, two the equal fixed a plurality of breast board, a plurality of that is equipped with in surface on slope the both sides of breast board bottom are all fixed and are equipped with a plurality of rack briquetting, a plurality of two planting grooves are all seted up on the surface of breast board.

As an optimized technical scheme of the utility model, the bottom mounting of lower embankment is equipped with plain soil step.

As a preferred technical scheme of the utility model, the both sides of embankment are all fixed and are equipped with the guardrail, two the water drainage tank has all been seted up on the top of guardrail.

As an optimal technical scheme of the utility model, two the inner wall of water drainage tank is all fixed and is equipped with waterproof mortar.

As an optimal technical scheme of the utility model, the fixed pitch seal that is equipped with in top of lower basic unit, the top of pitch seal and the bottom fixed connection of last basic unit.

As an optimized technical scheme of the utility model, a plurality of the inside of slope protection plate is all fixed and is equipped with the strengthening rib.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a highway subgrade structure capable of preventing subgrade softening, which is beneficial to rolling and forming by laying a lower embankment, an upper embankment, a lower embankment and an upper embankment in layers, improves the compactness of the subgrade body, is convenient to construct by respectively arranging a first seepage-proof geotextile, a second seepage-proof geotextile and a third seepage-proof geotextile on the contact surface of the lower embankment and the upper embankment, the contact surface of the upper embankment and the lower embankment, and the contact surface of the lower embankment and the upper embankment, and can improve the stability and the impermeability between the lower embankment and the upper embankment, the lower embankment and the upper embankment, can avoid the subgrade body softening, can plant through arranging a slope protection plate on the surface of the slope, can plant through a planting groove of the slope protection plate, fix the soil of the subgrade body, compact a plurality of tooth pressing blocks of the slope protection plate, the contact area between the slope protection plate and the slope is increased, the firmness is better, the slope protection plate is not easy to fall off to cause soil body loss, and the soil fixation capacity is improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic sectional structure of the present invention;

fig. 3 is a schematic structural view of the slope protection plate of the present invention.

In the figure: 1. a roadbed body; 2. a lower embankment; 3. plain soil steps; 4. a first impermeable geotextile; 5. going up a embankment; 6. a second impermeable geotextile; 7. a road leaving bed; 8. third, earth-permeable cloth is prevented; 9. getting on the way bed; 10. a reinforcing mesh; 11. a lower base layer; 12. sealing the asphalt layer; 13. an upper base layer; 14. protecting the road; 15. a water discharge tank; 16. waterproof mortar; 17. a slope; 18. a slope protection plate; 19. planting grooves; 20. and (5) pressing the rack.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a highway roadbed structure capable of preventing roadbed softening, which includes a roadbed body 1, a lower embankment 2 is fixed at the bottom of the roadbed body 1, the top end of the lower embankment 2 is fixedly connected with the top end of an upper embankment 5 through a first anti-seepage geotextile 4, the top end of the upper embankment 5 is fixedly connected with the bottom end of a lower embankment 7 through a second anti-seepage geotextile 6, the top end of the lower embankment 7 is fixedly connected with the bottom end of the upper embankment 9 through a third anti-seepage geotextile 8, the first anti-seepage geotextile 4, the second anti-seepage geotextile 6 and the third anti-seepage geotextile 8 are respectively arranged on the contact surface of the lower embankment 2 and the upper embankment 5, the contact surface of the upper embankment 5 and the lower embankment 7, and the contact surface of the lower embankment 7 and the upper embankment 9, which is convenient for construction, and can improve the performance of the lower embankment 2 and, Go up embankment 5 and lower roadbed 7, lower roadbed 7 and go up stability and imperviousness between roadbed 9, the bottom fixed connection of reinforcing mesh 10 and lower basic unit 11 is passed through on the top of going up roadbed 9, the both sides of roadbed body 1 are all fixed and are equipped with slope 17, the surface of two slopes 17 is all fixed and is equipped with a plurality of slope protection plate 18, the both sides of a plurality of slope protection plate 18 bottom are all fixed and are equipped with a plurality of rack briquetting 20, two planting grooves 19 have all been seted up on the surface of a plurality of slope protection plate 18.

Preferably, the plain soil step 3 is fixedly arranged at the bottom end of the lower embankment 2, so that the stability of the lower embankment 2 is improved; guard ways 14 are fixedly arranged on two sides of the lower embankment 2, construction operation is facilitated through the guard ways 14, and drainage grooves 15 are formed in the top ends of the two guard ways 14, so that drainage is facilitated; waterproof mortar 16 is fixedly arranged on the inner walls of the two water drainage grooves 15, so that the anti-permeability capability of the two water drainage grooves 15 is improved; the top end of the lower base layer 11 is fixedly provided with an asphalt seal layer 12, and the top end of the asphalt seal layer 12 is fixedly connected with the bottom end of the upper base layer 13, so that the impermeability between the lower base layer 11 and the upper base layer 13 is improved; the inside of the dry slope protection plate 18 is fixedly provided with reinforcing ribs, so that the strength of the plurality of slope protection plates 18 is improved.

When in specific use, the utility model relates to a highway subgrade structure capable of preventing subgrade softening, firstly, a lower embankment 2 is filled and compacted, a first anti-seepage geotextile 4 is laid on the lower embankment 2, then an upper embankment 5 is filled and compacted, a second anti-seepage geotextile 6 is laid on the upper embankment 5, a lower roadbed 7 is filled and compacted, a third anti-seepage geotextile 8 is laid on the lower roadbed 7, finally an upper roadbed 9 is filled and compacted, a reinforcing net 10 is laid, a lower base layer 11 and an upper base layer 13 are constructed in sequence, the first anti-seepage geotextile 4, the second anti-seepage geotextile 6 and the third anti-seepage geotextile 8 can improve the stability and the impermeability between the lower embankment 2 and the upper embankment 5, between the upper embankment 5 and the lower roadbed 7, between the lower roadbed 7 and the upper roadbed 9, a subgrade body 1 can be prevented from softening, slope protection plates 18 are arranged on slopes 17 at two sides of the subgrade body 1, a plurality of

tooth pressing blocks

20 and 17 of slope protection plates 18 are arranged, the contact area between the slope protection plate 18 and the slope 17 is increased, and plants are planted in the planting grooves 19 of the slope protection plate 18 to fix soil, so that soil loss is prevented.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A highway roadbed structure capable of preventing roadbed softening comprises a roadbed body (1) and is characterized in that a lower embankment (2) is fixedly arranged at the bottom of the roadbed body (1), the top end of the lower embankment (2) is fixedly connected with the top end of an upper embankment (5) through a first anti-seepage geotextile (4), the top end of the upper embankment (5) is fixedly connected with the bottom end of a lower roadbed (7) through a second anti-seepage geotextile (6), the top end of the lower roadbed (7) is fixedly connected with the bottom end of an upper roadbed (9) through a third anti-seepage geotextile (8), the top end of the upper roadbed (9) is fixedly connected with the bottom end of a lower base layer (11) through a reinforcing net (10), slopes (17) are fixedly arranged on two sides of the roadbed body (1), a plurality of slope protection plates (18) are fixedly arranged on the surfaces of the slopes (17), a plurality of rack pressing blocks (20) are fixedly arranged on two sides of the bottom end of each slope protection plate (18), and two planting grooves (19) are formed in the surfaces of the slope protection plates (18).

2. A highway substructure capable of preventing subgrade softening according to claim 1, wherein: and a plain soil step (3) is fixedly arranged at the bottom end of the lower embankment (2).

3. A highway substructure capable of preventing subgrade softening according to claim 1, wherein: and two sides of the lower embankment (2) are fixedly provided with guard ways (14), and the top ends of the two guard ways (14) are provided with drainage channels (15).

4. A highway substructure capable of preventing subgrade softening according to claim 3, wherein: and waterproof mortar (16) is fixedly arranged on the inner walls of the two drainage grooves (15).

5. A highway substructure capable of preventing subgrade softening according to claim 1, wherein: the top of lower basic unit (11) is fixed and is equipped with pitch seal (12), the bottom fixed connection of the top of pitch seal (12) and upper base (13).

6. A highway substructure capable of preventing subgrade softening according to claim 1, wherein: reinforcing ribs are fixedly arranged inside the slope protection plates (18).