CN204589746U - A kind of composite road surface structure being applicable to saturated dredger soft soil area Heavy Traffic condition - Google Patents
A kind of composite road surface structure being applicable to saturated dredger soft soil area Heavy Traffic condition Download PDFInfo
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- CN204589746U CN204589746U CN201420831155.5U CN201420831155U CN204589746U CN 204589746 U CN204589746 U CN 204589746U CN 201420831155 U CN201420831155 U CN 201420831155U CN 204589746 U CN204589746 U CN 204589746U
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Abstract
The utility model relates to a kind of composite road surface structure being applicable to saturated dredger soft soil area Heavy Traffic condition.The pavement of road in saturated dredger soft soil area uses through being everlasting and has shortly in succession occurred pavement crack, hole groove, be full of cracks, the disease such as loose, though punishing of having, new disease occurs at former breakage again and spreads.The utility model from bottom to top successively making have 20cm graded broken stone layer, 30cm cement stabilized macadam layer or two-ash broken stones layer, 20 ~ 30cm grinding coagulation soil layer, 2cm rubber asphalt stress absorbing layer, 6cm AC-16 asphalt concrete layer and 4cm AC-13 asphalt concrete layer, rubber asphalt stress absorbing layer surface, all adhesion coating is set between asphalt concrete layer.The composite construction that the utility model adopts flexible pavement and cement pavement to combine, under the Heavy Traffic condition of saturated dredger soft soil area, significantly improves application life, alleviates crack and upwards reflex to road surface, ensure that the functional performance on road surface.
Description
Technical field
the utility model belongs to transport development technical field, is specifically related to a kind of composite road surface structure being applicable to saturated dredger soft soil area Heavy Traffic condition.
Background technology
Saturated dredger soft soil artificially bottom shallow sea, extracts silt, and formed by waterpower hydraulic reclamation, and it is strong that saturated dredger soft soil has compressibilty, the features such as intensity is low, poor permeability, could as engineering foundation so must carry out artificial punishment to it.Blowing filling soft soil foundation after punishment is still larger on the impact of highway construction, especially under Heavy Traffic condition.And the now road surface in hydraulic reclamation area and other areas indistinction, at present domestic still do not have a kind of specially for the road structure under the Heavy Traffic condition of saturated dredger soft soil area.Therefore the pavement of road in saturated dredger soft soil area uses through being everlasting and has shortly in succession occurred pavement crack, hole groove, be full of cracks, the disease such as loose.Though what have punishes, new disease occurs at former breakage again and spreads.Existence and the development of disease badly influence Pavement Condition.
Utility model content
The purpose of this utility model is to provide a kind of composite road surface structure being applicable to saturated dredger soft soil area Heavy Traffic condition, develops the problems such as rapid with the poor durability, the crack disease that solve the road existence of saturated dredger soft soil area.
The technical scheme that the utility model adopts is:
Be applicable to a composite road surface structure for saturated dredger soft soil area Heavy Traffic condition, it is characterized in that:
Making has graded broken stone layer, cement stabilized macadam layer or two-ash broken stones layer, grinding coagulation soil layer, rubber asphalt stress absorbing layer, AC-16 asphalt concrete layer and AC-13 asphalt concrete layer successively from bottom to top.
Described graded broken stone layer placement thickness is 20cm, and concrete grating is:
。
Described cement stabilized macadam layer placement thickness is 30cm, and the cement dose of cement stabilized macadam is 3%-5.5%, and the crush values of rubble is not more than 30%, and the concrete grating of rubble is:
。
Described grinding coagulation soil layer placement thickness is 20 ~ 30cm, and the cement dose of roller compacted concrete is 8% ~ 12%, and the maximum particle diameter of gathering materials is not more than 31.5mm.
Described grinding coagulation soil layer arranges longitudinal joint and transverse joint, and longitudinal joint is parallel to road center line, and transverse joint is perpendicular to longitudinal joint.
Described rubber asphalt stress absorbing layer is the setting course of rubber asphalt and single particle size rubble, and rubber asphalt presses 2 ~ 3kg/m on grinding coagulation soil layer
2spread, single particle size rubble presses 15 ~ 22 kg/m on rubber asphalt
2spread, single particle size ballast grain sizes scope is 9.5 ~ 12mm, rolls and makes rubber asphalt turns over, reach 50 ~ 70% of rubble height.
Described AC-16 asphalt concrete layer placement thickness is 6cm.
Described AC-13 asphalt concrete layer placement thickness is 4cm.
Rubber asphalt stress absorbing layer surface, all arrange adhesion coating between AC-16 asphalt concrete layer and AC-13 asphalt concrete layer, adhesion coating adopts plain asphalt or modified emulsifying asphalt, and spread quantity is 0.3 ~ 0.6L/m
2.
The utility model has the following advantages:
1, good endurance: the composite pavement structure that the utility model adopts flexible pavement and cement pavement to combine, under the Heavy Traffic condition of saturated dredger soft soil area, the actual life of existing road structure is generally at 3-5, and the utility model road structure can reach the application life of 15 years.
2, pavement cracking is delayed: the differential settlement of roadbed very easily occurs in saturated dredger soft soil area, thus causes pavement crack disease serious.The utility model, by increasing one deck stress absorbing layer between cement layer and bitumen layer, alleviates crack to a great extent and upwards reflexes to road surface, ensure that the functional performance on road surface.
Accompanying drawing explanation
Fig. 1 is the utility model structure chart.
In figure, 1-AC-13 asphalt concrete layer, 2-AC-16 asphalt concrete layer, 3-rubber asphalt stress absorbing layer, 4-grinding coagulation soil layer, 5-cement stabilized macadam layer or two-ash broken stones layer, 6-graded broken stone layer.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the utility model is described in detail.
A kind of composite road surface structure being applicable to saturated dredger soft soil area Heavy Traffic condition that the utility model relates to, making has graded broken stone layer 6, cement stabilized macadam layer or two-ash broken stones layer 5, grinding coagulation soil layer 4, rubber asphalt stress absorbing layer 3, AC-16 asphalt concrete layer 2 and AC-13 asphalt concrete layer 1 successively from bottom to top.
Each deck Specific construction parameter is as follows:
1, graded broken stone layer 6:
Placement thickness is 20cm, and graded broken stone is mixed to join by the rubble of several different-grain diameter and aggregate chips and formed, and concrete grating is:
。
2, cement stabilized macadam layer:
Placement thickness is 30cm, and the cement dose of cement stabilized macadam is 3%-5.5%, and the crush values of rubble is not more than 30%, and the concrete grating of rubble is:
。
3, grinding coagulation soil layer 4:
Placement thickness is 20 ~ 30cm, belongs to rigid base, has higher intensity, rigidity, good globality and stability, is particularly suitable for using under Heavy Traffic condition.The cement dose of roller compacted concrete is 8% ~ 12%, and the maximum particle diameter of gathering materials is not more than 31.5mm.Grinding coagulation soil layer 4 arranges longitudinal joint and transverse joint, and longitudinal joint is parallel to road center line, and transverse joint is perpendicular to longitudinal joint.
4, rubber asphalt stress absorbing layer 3 is the setting course of rubber asphalt and single particle size rubble, is crack reflection deck, and rubber asphalt presses 2 ~ 3kg/m on grinding coagulation soil layer 4
2spread, single particle size rubble presses 15 ~ 22 kg/m on rubber asphalt
2spread, single particle size ballast grain sizes scope is 9.5 ~ 12mm, is rolled and makes rubber asphalt turns over, reach 50 ~ 70% of rubble height, stabilization gravel by rubber-tyred roller appropriateness.
5, AC-16 asphalt concrete layer 2, referring to nominal maximum particle diameter is grain formula bituminous concrete in the close-graded of 16mm, and porosity is 3% ~ 5%, and placement thickness is 6cm.
6, AC-13 asphalt concrete layer 1, refer to the close-graded particulate formula bituminous concrete that nominal maximum particle diameter is 13.2mm, porosity is 3% ~ 5%, and placement thickness is 4cm.
Pitch in said structure layer should meet " technical requirements of A level bi tumenf orr oad ".Asphalt label adopts No. 70 pitches.
Above-mentioned rubber asphalt stress absorbing layer 3 surface, all arrange adhesion coating between AC-16 asphalt concrete layer 2 and AC-13 asphalt concrete layer 1, adhesion coating adopts plain asphalt or modified emulsifying asphalt, and spread quantity is 0.3 ~ 0.6L/m
2.
Content of the present utility model is not limited to cited by embodiment, and the conversion of those of ordinary skill in the art by reading the utility model manual to any equivalence that technical solutions of the utility model are taked, is claim of the present utility model and contains.
Claims (8)
1. be applicable to a composite road surface structure for saturated dredger soft soil area Heavy Traffic condition, it is characterized in that:
Making has graded broken stone layer (6), cement stabilized macadam layer or two-ash broken stones layer (5), grinding coagulation soil layer (4), rubber asphalt stress absorbing layer (3), AC-16 asphalt concrete layer (2) and AC-13 asphalt concrete layer (1) successively from bottom to top.
2. a kind of composite road surface structure being applicable to saturated dredger soft soil area Heavy Traffic condition according to claim 1, is characterized in that:
Described graded broken stone layer (6) placement thickness is 20cm, and concrete grating is:
。
3. a kind of composite road surface structure being applicable to saturated dredger soft soil area Heavy Traffic condition according to claim 2, is characterized in that:
Described cement stabilized macadam layer placement thickness is 30cm, and the cement dose of cement stabilized macadam is 3%-5.5%, and the crush values of rubble is not more than 30%, and the concrete grating of rubble is:
。
4. a kind of composite road surface structure being applicable to saturated dredger soft soil area Heavy Traffic condition according to claim 3, is characterized in that:
Described grinding coagulation soil layer (4) placement thickness is 20 ~ 30cm, and the maximum particle diameter of gathering materials is not more than 31.5mm.
5. a kind of composite road surface structure being applicable to saturated dredger soft soil area Heavy Traffic condition according to claim 4, is characterized in that:
Described grinding coagulation soil layer (4) arranges longitudinal joint and transverse joint, and longitudinal joint is parallel to road center line, and transverse joint is perpendicular to longitudinal joint;
The setting course that described rubber asphalt stress absorbing layer (3) is rubber asphalt and single particle size rubble, rubber asphalt is upper by 2 ~ 3kg/m at grinding coagulation soil layer (4)
2spread, single particle size rubble presses 15 ~ 22 kg/m on rubber asphalt
2spread, single particle size ballast grain sizes scope is 9.5 ~ 12mm, rolls and makes rubber asphalt turns over, reach 50 ~ 70% of rubble height.
6. a kind of composite road surface structure being applicable to saturated dredger soft soil area Heavy Traffic condition according to claim 5, is characterized in that:
Described AC-16 asphalt concrete layer (2) placement thickness is 6cm.
7. a kind of composite road surface structure being applicable to saturated dredger soft soil area Heavy Traffic condition according to claim 6, is characterized in that:
Described AC-13 asphalt concrete layer (1) placement thickness is 4cm.
8. a kind of composite road surface structure being applicable to saturated dredger soft soil area Heavy Traffic condition according to claim 7, is characterized in that:
Rubber asphalt stress absorbing layer (3) surface, all arrange adhesion coating between AC-16 asphalt concrete layer (2) and AC-13 asphalt concrete layer (1), adhesion coating employing plain asphalt or modified emulsifying asphalt, spread quantity is 0.3 ~ 0.6L/m
2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420831155.5U CN204589746U (en) | 2014-12-25 | 2014-12-25 | A kind of composite road surface structure being applicable to saturated dredger soft soil area Heavy Traffic condition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420831155.5U CN204589746U (en) | 2014-12-25 | 2014-12-25 | A kind of composite road surface structure being applicable to saturated dredger soft soil area Heavy Traffic condition |
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| CN204589746U true CN204589746U (en) | 2015-08-26 |
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|---|---|---|---|
| CN201420831155.5U Expired - Fee Related CN204589746U (en) | 2014-12-25 | 2014-12-25 | A kind of composite road surface structure being applicable to saturated dredger soft soil area Heavy Traffic condition |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105239484A (en) * | 2015-09-24 | 2016-01-13 | 沈阳建筑大学 | Road surface structure suitable for heavy-duty traffic |
| CN106894432A (en) * | 2017-04-08 | 2017-06-27 | 山东省建筑科学研究院 | A kind of pile variation rigidity reinforcement cushion composite foundation and its construction method |
| CN110067166A (en) * | 2019-04-12 | 2019-07-30 | 新疆北新路桥集团股份有限公司 | A kind of antidetonation road structure and its construction method |
-
2014
- 2014-12-25 CN CN201420831155.5U patent/CN204589746U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105239484A (en) * | 2015-09-24 | 2016-01-13 | 沈阳建筑大学 | Road surface structure suitable for heavy-duty traffic |
| CN106894432A (en) * | 2017-04-08 | 2017-06-27 | 山东省建筑科学研究院 | A kind of pile variation rigidity reinforcement cushion composite foundation and its construction method |
| CN106894432B (en) * | 2017-04-08 | 2018-12-28 | 山东省建筑科学研究院 | A kind of pile variation rigidity reinforcement cushion composite foundation and its construction method |
| CN110067166A (en) * | 2019-04-12 | 2019-07-30 | 新疆北新路桥集团股份有限公司 | A kind of antidetonation road structure and its construction method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20211225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |