CN208981055U - A kind of rigid base pavement structure in active delayed reflex crack - Google Patents
A kind of rigid base pavement structure in active delayed reflex crack Download PDFInfo
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- CN208981055U CN208981055U CN201821120453.8U CN201821120453U CN208981055U CN 208981055 U CN208981055 U CN 208981055U CN 201821120453 U CN201821120453 U CN 201821120453U CN 208981055 U CN208981055 U CN 208981055U
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Abstract
The utility model provides a kind of rigid base's pavement structure in active delayed reflex crack, belongs to the technical field of traffic civil engineering.A kind of rigid base's pavement structure in active delayed reflex crack includes that inverted dovetail groove is provided between the concrete plate formed by joint-cutting, dovetail groove is symmetrical arranged about joint-cutting, and the large end face of dovetail groove and the upper surface of concrete layer are overlapped, small end face is sunk in concrete layer, at the same in dovetail groove be filled with Anti-reflective Crack of Overlaying material；The utility model at joint-cutting by being arranged horizontal dovetail groove, obtuse angle is converted by right angle by the region that the top of concrete plate is located at joint-cutting, the stress avoided herein is concentrated, to achieve the purpose that delayed reflex crack generation time, simultaneously, by filling Anti-reflective Crack of Overlaying material, the time that delayed reflex crack reaches road surface is furthermore achieved, is more able to satisfy application demand.
Description
Technical field
The utility model relates to the technical fields of traffic civil engineering, are specifically related to a kind of rigidity in active delayed reflex crack
Base's pavement structure.
Background technique
Pavement on Semi-rigid Type Base structure is the pavement structure that capital construction field generally uses, and relies on more reasonable distribution of force
And durability and be widely applied.
For rigid base road surface, since its base is rigidly larger, joint-cutting processing need to be often carried out, is caused in the short time
Equally distributed transverse crack is generated in (2 years or so), is restricted its application range.But since there are speed of applications for it
Fastly, the advantages such as fugitive dust is low, the fields such as being transformed in urban road construction, old road " morning-night " repaving asphalt coat, there are still biggish
Application demand.In order to overcome the problems, such as that rigid base easily causes reflection crack, generallys use at present and overlay Anticracking plaster, be laid with geotechnique
The measures such as material carry out the generation in delayed reflex crack, but effect promoting is limited, and being unable to satisfy increasing road occupation needs
It asks.
Summary of the invention
For the above-mentioned problems in the prior art, it is now intended to provide a kind of rigid base in active delayed reflex crack
Seam between adjacent concrete plate at the side of road surface is adjusted to inverted trapezoid groove structure by pavement structure, and in
Anti-reflective Crack of Overlaying material is filled in dovetail groove, the stress for avoiding the edge of concrete layer is concentrated, so that reflection delayed to split
The generation time of seam, while the Anti-reflective Crack of Overlaying material filled further has delayed the time on reflection crack arrival road surface, thus
Meet the application demand of road.
Specific technical solution is as follows:
A kind of rigid base's pavement structure in active delayed reflex crack, including concrete layer, concrete layer, which is provided with, to be cut
Slit has the feature that the side between adjacent concrete plate and positioned at road surface is arranged at several concrete plates
There is dovetail groove, dovetail groove is symmetrical arranged about joint-cutting, and dovetail groove is along the lateral arrangement of concrete layer, the large end face of dovetail groove
It is overlapped towards road surface side and with the upper surface of concrete layer, small end face is sunk in concrete plate, and filling in dovetail groove
There is Anti-reflective Crack of Overlaying material.
Rigid base's pavement structure in above-mentioned a kind of active delayed reflex crack, wherein the groove depth and coagulation of dovetail groove
The linear direct proportion setting of the thickness of the layer.
A kind of rigid base's pavement structure in above-mentioned active delayed reflex crack, wherein ratio value range be 0.2~
0.25 times.
A kind of rigid base's pavement structure in above-mentioned active delayed reflex crack, wherein the width of the large end face of dovetail groove
Degree is 4 times of groove depth.
A kind of rigid base's pavement structure in above-mentioned active delayed reflex crack, wherein the width of the small end face of dovetail groove
Degree is 2 times of groove depth.
Rigid base's pavement structure in above-mentioned a kind of active delayed reflex crack, wherein pitch is filled in dovetail groove
One of concrete, rubble, gravel are a variety of.
Rigid base's pavement structure in above-mentioned a kind of active delayed reflex crack, wherein be equipped at the top of dovetail groove
Earth working material, such as Anticracking plaster, Fibergrass polyester mat.
Rigid base's pavement structure in above-mentioned a kind of active delayed reflex crack, wherein drip is equipped on concrete layer
Green concrete topping, and stress absorbing layer is provided between concrete layer and asphalt concrete pavement.
The good effect of above-mentioned technical proposal is:
Rigid base's pavement structure in above-mentioned active delayed reflex crack, by forming two adjacent coagulations after joint-cutting
The top at joint-cutting between native plate is provided with about the symmetrical dovetail groove of joint-cutting, and dovetail groove is upside-down trapezoid slot, and trapezoidal
The large end face of slot and the upper surface of concrete layer are overlapped, and in being filled with Anti-reflective Crack of Overlaying material in dovetail groove, by concrete layer
Edge at joint-cutting is changed to obtuse angle from right angle, avoids stress of the concrete layer at joint-cutting and concentrates, to delay reflection
The generation time in crack, meanwhile, it is filled with Anti-reflective Crack of Overlaying material in dovetail groove, reflection crack has further been delayed to reach road
The time in face, more it is able to satisfy application demand.
Detailed description of the invention
Fig. 1 is a kind of structure of the embodiment of rigid base's pavement structure in active delayed reflex crack of the utility model
Figure；
Fig. 2 be one preferred embodiment of the utility model in longitudinal joint, there are the structure charts of pull rod form；
Fig. 3 be one preferred embodiment of the utility model in expansion joint (E.J.), there are the structure charts of bolster form；
Fig. 4 is one preferred embodiment of the utility model to there are the structure charts of power transmission rod type in contracting seam.
In attached drawing: 1, concrete layer；11, concrete plate；12, joint-cutting；2, asphalt concrete pavement；3, dovetail groove；31,
Large end face；32, small end face；4, pull rod；5, bolster；6, transmission rod.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, with
Lower embodiment combination attached drawing 1 is specifically addressed technical solution provided by the utility model to attached drawing 4, but the following contents not as
The restriction of the utility model.
Fig. 1 is a kind of structure of the embodiment of rigid base's pavement structure in active delayed reflex crack of the utility model
Figure.As shown in Figure 1, rigid base's pavement structure in active delayed reflex provided in this embodiment crack includes: concrete layer 1,
Concrete layer 1 is horizontally arranged with several joint-cuttings 12 along it, and joint-cutting 12 divides concrete layer 1 for several concrete plates 11, and in
Dovetail groove 3 is provided between adjacent concrete layer 1, dovetail groove 3 is inverted dovetail groove 3, meanwhile, dovetail groove 3 is set to mixed
Concrete board block 11 is close to the side on road surface, and dovetail groove 3 is symmetrical arranged about joint-cutting 12, at the joint-cutting 12 of concrete plate 11
Region close to road surface side is converted into obtuse angle by right angle, and the stress avoided herein is concentrated, to delay reflection crack
Generation time, meanwhile, in being filled with Anti-reflective Crack of Overlaying material in dovetail groove 3, increased by the Anti-reflective Crack of Overlaying material of filling
Thickness herein has further delayed reflection crack to reach the time on road surface, has more been able to satisfy application demand.
Specifically, dovetail groove 3 is horizontally placed on concrete layer 1, and the upper end of the large end face 31 of dovetail groove 3 and concrete layer 1
Face is overlapped, and lower end surface is sunk in concrete layer 1.
As preferred embodiment, the groove depth of dovetail groove 3 and the linear direct proportion setting of the thickness of concrete layer 1, and
Ratio value range is 0.2~0.25 times, makes structure setting more reasonable while the application demand for meeting road.
As preferred embodiment, the width of the large end face 31 of dovetail groove 3 is 4 times of groove depth, the small end face of dovetail groove 3
32 width is 2 times of groove depth, equally can guarantee and makes structure setting more reasonable while the application demand for meeting road.
As further preferred embodiment, one of bituminous concrete, rubble, gravel are filled in dovetail groove 3
Or it is a variety of, it can effectively increase the thickness of asphalt concrete pavement 2 at joint-cutting 12, material easily obtains, and construction cost is low.
As further preferred embodiment, the top of dovetail groove 3 can also be equipped with earth working material, and such as Anticracking plaster gathers
Ester glass-fiber-fabric, or stress absorption is provided between the asphalt concrete pavement 2 being laid on concrete layer 1 and concrete layer 1
Layer, in conjunction with the structure of existing Anti-reflective Crack of Overlaying, further reaches the generation time in delayed reflex crack, meets application demand.
Rigid base's pavement structure that the present embodiment also describes this active delayed reflex crack is applied in various seam crossings
Set-up mode.Fig. 2 be one preferred embodiment of the utility model in longitudinal joint there are the structure chart of pull rod form, such as Fig. 1 and
Shown in Fig. 2, dovetail groove 3 is symmetrical arranged about pull rod 4；Fig. 3 be one preferred embodiment of the utility model in expansion joint (E.J.) exist pad
The structure chart of pincushion formula, as shown in figures 1 and 3, dovetail groove 3 are symmetrical arranged about bolster 5；Fig. 4 is that the utility model one is preferable
Embodiment to contracting seam in there are the structure charts of power transmission rod type, as shown in Figure 1 and Figure 4, dovetail groove 3 is also with regard to transmission rod 6
It is symmetrical arranged.
Rigid base's pavement structure in active delayed reflex provided in this embodiment crack, is included in and is formed because of joint-cutting 12
Concrete plate 11 between be provided with inverted dovetail groove 3, dovetail groove 3 is symmetrical arranged about joint-cutting 12, and dovetail groove 3 is big
End face 31 and the upper surface of concrete layer 1 are overlapped, and small end face 32 is sunk in concrete layer 1, while anti-in being filled in dovetail groove 3
Reflection crack material；By the way that horizontal dovetail groove 3 is arranged at joint-cutting 12, the top of concrete plate 11 is located at joint-cutting 12
Region obtuse angle is converted by right angle, avoid stress herein and concentrate, to reach delayed reflex crack generation time
Purpose, meanwhile, by filling Anti-reflective Crack of Overlaying material, the time that delayed reflex crack reaches road surface is furthermore achieved, more can
Meet application demand, and provide the construction method of this pavement structure, meets its building demand.
The above is only the utility model preferred embodiments, are not intended to limit the embodiments of the present invention and protection
Range should can appreciate that all with the utility model specification and diagramatic content institute to those skilled in the art
The equivalent replacement made and obviously change obtained scheme, the protection scope of the utility model should all be included in
It is interior.
Claims (8)
1. a kind of rigid base's pavement structure in active delayed reflex crack, including concrete layer, the concrete layer are provided with
Joint-cutting forms several concrete plates, which is characterized in that sets between the adjacent concrete plate and positioned at the side on road surface
It is equipped with dovetail groove, the dovetail groove is symmetrical arranged about the joint-cutting, and the dovetail groove is along the transverse direction of the concrete layer
Arrangement, the large end face of the dovetail groove are overlapped towards road surface side and with the upper surface of the concrete layer, the dovetail groove
Small end face is sunk in the concrete plate, and Anti-reflective Crack of Overlaying material is filled in the dovetail groove.
2. rigid base's pavement structure in active delayed reflex according to claim 1 crack, which is characterized in that the ladder
The linear direct proportion setting of the thickness of the groove depth of shape slot and the concrete layer.
3. rigid base's pavement structure in active delayed reflex according to claim 2 crack, which is characterized in that the ratio
Example value range is 0.2~0.25 times.
4. rigid base's pavement structure in active delayed reflex according to claim 1 crack, which is characterized in that the ladder
The width of the large end face of shape slot is 4 times of groove depth.
5. rigid base's pavement structure in active delayed reflex according to claim 1 crack, which is characterized in that the ladder
The width of the small end face of shape slot is 2 times of groove depth.
6. rigid base's pavement structure in active delayed reflex according to claim 1 crack, which is characterized in that the ladder
One of bituminous concrete, rubble, gravel or a variety of are filled in shape slot.
7. rigid base's pavement structure in active delayed reflex according to claim 1 crack, which is characterized in that the ladder
It is equipped with earth working material at the top of shape slot, such as Anticracking plaster, Fibergrass polyester mat.
8. rigid base's pavement structure in active delayed reflex according to claim 1 crack, which is characterized in that described mixed
It is equipped with asphalt concrete pavement on solidifying soil layer, and is provided with and answers between the concrete layer and the asphalt concrete pavement
Power absorbed layer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821120453.8U CN208981055U (en) | 2018-07-13 | 2018-07-13 | A kind of rigid base pavement structure in active delayed reflex crack |
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| CN201821120453.8U CN208981055U (en) | 2018-07-13 | 2018-07-13 | A kind of rigid base pavement structure in active delayed reflex crack |
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| CN208981055U true CN208981055U (en) | 2019-06-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108824123A (en) * | 2018-07-13 | 2018-11-16 | 上海市政交通设计研究院有限公司 | Rigid base's pavement structure and its construction method in a kind of active delayed reflex crack |
-
2018
- 2018-07-13 CN CN201821120453.8U patent/CN208981055U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108824123A (en) * | 2018-07-13 | 2018-11-16 | 上海市政交通设计研究院有限公司 | Rigid base's pavement structure and its construction method in a kind of active delayed reflex crack |
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