CN108824123A - Rigid base's pavement structure and its construction method in a kind of active delayed reflex crack - Google Patents
Rigid base's pavement structure and its construction method in a kind of active delayed reflex crack Download PDFInfo
- Publication number
- CN108824123A CN108824123A CN201810772417.8A CN201810772417A CN108824123A CN 108824123 A CN108824123 A CN 108824123A CN 201810772417 A CN201810772417 A CN 201810772417A CN 108824123 A CN108824123 A CN 108824123A
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- Prior art keywords
- crack
- dovetail groove
- pavement structure
- rigid base
- concrete
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- 230000003111 delayed effect Effects 0.000 title claims abstract description 42
- 230000011514 reflex Effects 0.000 title claims abstract description 38
- 238000010276 construction Methods 0.000 title claims abstract description 17
- 239000004567 concrete Substances 0.000 claims abstract description 55
- 238000005520 cutting process Methods 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 14
- 230000003667 anti-reflective effect Effects 0.000 claims abstract description 12
- 239000011384 asphalt concrete Substances 0.000 claims description 6
- 239000011505 plaster Substances 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 3
- 239000008207 working material Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 2
- 239000002689 soil Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 4
- 230000015271 coagulation Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
- E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
- E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
- E01C11/06—Methods of making joints
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention provides a kind of rigid base's pavement structure in active delayed reflex crack and its construction methods, belong 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 present invention 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, meanwhile, by filling Anti-reflective Crack of Overlaying material, the time that delayed reflex crack reaches road surface is furthermore achieved, it is more able to satisfy application demand, and provides the construction method of this pavement structure, meets its building demand.
Description
Technical field
The present invention relates to the technical fields of traffic civil engineering, are specifically related to a kind of rigid base in active delayed reflex crack
Pavement structure and its construction method.
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, while additionally providing its construction method, reaches reasonable construction demand.
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.
A kind of construction method, has the feature that, for building the rigid of above-mentioned any one active delayed reflex crack
Property base pavement structure, includes the following steps：
Step 1, bottom concrete pour, and pouring to the distance apart from concrete layer upper surface is at the groove depth of dovetail groove；
Step 2, places that trapezoidal slot template is subsequent continuous to be poured；
Step 3 removes trapezoidal slot template after maintenance.
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 is more able to satisfy application demand, and provides a kind of construction method about this pavement structure of build, meets its construction
Demand.
Detailed description of the invention
Fig. 1 is a kind of structure chart of the embodiment of rigid base's pavement structure in active delayed reflex crack of the invention；
Fig. 2 is a preferred embodiment of the present invention that there are the structure charts of pull rod form in longitudinal joint；
Fig. 3 is a preferred embodiment of the present invention that there are the structure charts of bolster form in expansion joint (E.J.)；
Fig. 4 is a preferred embodiment of the present invention 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
It is real below in order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention
It applies example combination attached drawing 1 and technical solution provided by the invention is specifically addressed to attached drawing 4, but the following contents is not as of the invention
It limits.
Fig. 1 is a kind of structure chart of the embodiment of rigid base's pavement structure in active delayed reflex crack of the invention.
As shown in Figure 1, rigid base's pavement structure in active delayed reflex provided in this embodiment crack includes：Concrete layer 1, coagulation
Soil 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 adjacent
Concrete layer 1 between be provided with dovetail groove 3, dovetail groove 3 is inverted dovetail groove 3, meanwhile, dovetail groove 3 is set to concrete
Plate 11 is close to the side on road surface, and dovetail groove 3 is symmetrical arranged about joint-cutting 12, will be close at the joint-cutting 12 of concrete plate 11
The region of road surface side is converted into obtuse angle by right angle, and the stress avoided herein is concentrated, to delay the generation of reflection crack
Time, meanwhile, in being filled with Anti-reflective Crack of Overlaying material in dovetail groove 3, increased herein by the Anti-reflective Crack of Overlaying material of filling
Thickness, further delayed reflection crack reach road surface time, be more 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 is a preferred embodiment of the present invention that there are the structure charts of pull rod form in longitudinal joint, such as Fig. 1 and Fig. 2 institute
Show, dovetail groove 3 is symmetrical arranged about pull rod 4；Fig. 3 is a preferred embodiment of the present invention that there are the knots of bolster form in expansion joint (E.J.)
Composition, as shown in figures 1 and 3, dovetail groove 3 are symmetrical arranged about bolster 5；Fig. 4, which is a preferred embodiment of the present invention, stitches contracting
Middle there are the structure charts of power transmission rod type, and as shown in Figure 1 and Figure 4, dovetail groove 3 is symmetrical arranged also with regard to transmission rod 6.
The present embodiment additionally provides a kind of for building rigid base's pavement structure in above-mentioned active delayed reflex crack
Construction method, including following steps：
Step 1, bottom concrete pour, and pour the groove depth to the distance apart from 1 upper surface of concrete layer for dovetail groove 3
Place；
Step 2, places that trapezoidal slot template is subsequent continuous to be poured；
Step 3 removes trapezoidal slot template after maintenance.
The rigid base in active delayed reflex crack can be fast implemented in the range of constructing allows by above-mentioned construction method
The build of layer pavement structure, meets building demand.
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 preferred embodiments of the present invention, are not intended to limit the implementation manners and the protection scope of the present invention, right
For those skilled in the art, it should can appreciate that and all replace with being equal made by description of the invention and diagramatic content
It changes and obviously changes obtained scheme, should all be included within the scope of the present invention.
Claims (9)
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.
9. a kind of construction method, for building the rigid base in active delayed reflex crack described in claim 1~8 any one
Pavement structure, which is characterized in that include the following steps：
Step 1, bottom concrete pour, and pour the slot to the distance apart from the concrete layer upper surface for the dovetail groove
Depths；
Step 2, places that trapezoidal slot template is subsequent continuous to be poured；
Step 3 removes the trapezoidal slot template after maintenance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810772417.8A CN108824123A (en) | 2018-07-13 | 2018-07-13 | Rigid base's pavement structure and its construction method in a kind of active delayed reflex crack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810772417.8A CN108824123A (en) | 2018-07-13 | 2018-07-13 | Rigid base's pavement structure and its construction method in a kind of active delayed reflex crack |
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| Publication Number | Publication Date |
|---|---|
| CN108824123A true CN108824123A (en) | 2018-11-16 |
Family
ID=64137331
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810772417.8A Pending CN108824123A (en) | 2018-07-13 | 2018-07-13 | Rigid base's pavement structure and its construction method in a kind of active delayed reflex crack |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2347636A1 (en) * | 1973-09-21 | 1975-04-24 | Thiele Heinrich | Road tarmac, or permanent way construction - has ribs in longitudinal direction with reinforcement forming trapeze and shock absorbing layer |
| US4159605A (en) * | 1977-03-28 | 1979-07-03 | Preco Industries Ltd. | Parking curb reinforcing bar support |
| CN201687216U (en) * | 2010-04-16 | 2010-12-29 | 中国葛洲坝集团股份有限公司 | Small key groove template for roller compacted concrete construction |
| CN103938514A (en) * | 2014-04-15 | 2014-07-23 | 南昌航空大学 | Concrete pavement oxide treatment structure and construction method thereof |
| CN208981055U (en) * | 2018-07-13 | 2019-06-14 | 上海市政交通设计研究院有限公司 | A kind of rigid base pavement structure in active delayed reflex crack |
-
2018
- 2018-07-13 CN CN201810772417.8A patent/CN108824123A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2347636A1 (en) * | 1973-09-21 | 1975-04-24 | Thiele Heinrich | Road tarmac, or permanent way construction - has ribs in longitudinal direction with reinforcement forming trapeze and shock absorbing layer |
| US4159605A (en) * | 1977-03-28 | 1979-07-03 | Preco Industries Ltd. | Parking curb reinforcing bar support |
| CN201687216U (en) * | 2010-04-16 | 2010-12-29 | 中国葛洲坝集团股份有限公司 | Small key groove template for roller compacted concrete construction |
| CN103938514A (en) * | 2014-04-15 | 2014-07-23 | 南昌航空大学 | Concrete pavement oxide treatment structure and construction method thereof |
| CN208981055U (en) * | 2018-07-13 | 2019-06-14 | 上海市政交通设计研究院有限公司 | A kind of rigid base pavement structure in active delayed reflex crack |
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