CN204199131U - A kind of steel concrete groove type roadbed - Google Patents
A kind of steel concrete groove type roadbed Download PDFInfo
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- CN204199131U CN204199131U CN201420600436.XU CN201420600436U CN204199131U CN 204199131 U CN204199131 U CN 204199131U CN 201420600436 U CN201420600436 U CN 201420600436U CN 204199131 U CN204199131 U CN 204199131U
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- groove
- eps
- roadbed
- steel concrete
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Abstract
The utility model provides a kind of steel concrete groove type roadbed, comprises the groove be made up of steel concrete and the EPS roadbed filling being positioned at groove; Groove inner bottom surface is parallel to road surface, and lateral vertical is in road surface; Bottom portion of groove arranges gutter; The bed course be made up of medium coarse sand is set between groove and EPS roadbed filling; One deck steel concrete leveling layer is set above EPS roadbed filling.The groove floor of the groove type roadbed that the utility model provides is Integral flat-plate structure, the point load of supporting construction can be converted into evenly distributed load, can play the effect reducing net foundation pressure preferably.
Description
Technical field
The utility model relates to roadbed filling field, particularly a kind of steel concrete groove type roadbed.
Background technology
Bridgehead by Blastig fills, usually many conventional general earthwork is filled, but for the high roadbed Bridgehead by Blastig of Deep Thick Soft Ground, for reducing Bridgehead by Blastig sedimentation, adopt sometimes and there is the advantage EPS roadbed fillings such as ultralight property, resistance against compression, independence, water resistance and construction be simple, convenient, fast, but EPS belongs to macromolecular material, easily hazardous substances occurs and naked light invades, aging after the direct irradiation of solar UV, rodent carries out to EPS block the accident of biting etc.
For head it off, when filling roadbed with EPS, EPS block peripheral hardware of being everlasting arranges protector, has three kinds of modes at present, i.e. the form such as clay bound edge, cantilever retaining wall, the board-like barricade of post, and the most conventional is latter two.Above three kinds of forms effectively can be protected EPS; but the base plate of above-mentioned barricade, retaining wall or bound edge mostly is split-type structural; cantilever is very short; there is edge and prop up the larger problem of block material base pressure; when filling roadbed on subway top or pipeline, easily exceed the maximum subsidiary stress (20Kpa) at subway or pipeline requirements top.
Summary of the invention
For solving prior art Problems existing, the utility model provides a kind of roadbed of the groove made with steel concrete.
A kind of steel concrete groove type roadbed, comprises the groove be made up of steel concrete and the EPS roadbed filling being positioned at groove; Groove inner bottom surface is parallel to road surface, and lateral vertical is in road surface; Bottom portion of groove arranges gutter; The bed course that waterproof geotextiles and medium coarse sand form is set gradually from inside to outside between groove and EPS roadbed filling; One deck steel concrete leveling layer is set above EPS roadbed filling.
As a modification of the present invention, groove inner bottom surface is connected with right angle, side or inclined-plane connects.
The utility model compared with prior art, its advantage is: compared with the roadbeds such as cantilever retaining wall, the board-like barricade of post, the utility model adopts the groove type roadbed of integrative-structure, groove floor is Integral flat-plate, the point load of supporting construction can be converted into evenly distributed load, the effect reducing net foundation pressure preferably can be played.
The utility model is further illustrated below in conjunction with Figure of description.
Accompanying drawing explanation
Fig. 1 is the cross section of the first the groove type roadbed that the utility model proposes;
Fig. 2 is the cross section of the second groove type roadbed that the utility model proposes;
Fig. 3 is Cantilever Retaining Wall cross-sectional drawing;
Fig. 4 is slab column system cross-sectional drawing.
Detailed description of the invention
A kind of steel concrete groove type roadbed, comprises the groove 2 be made up of steel concrete and the EPS roadbed filling 1 being positioned at groove 2.The concrete strength of groove 2 is C40, and thickness meets minimum construction thickness, is generally 20cm.EPS roadbed filling 2 is made up of EPS block, and EPS block is successively fissure of displacement laying from bottom to top, and the density of each EPS block is not less than 20kg/m
3.
The outline cross section of groove 2 is rectangle; Groove 2 inner bottom surface is parallel to road surface, and lateral vertical is in road surface, and pressure is not born in groove both sides, only carries out constructional reinforcement, and transmission load action is mainly born in bottom surface, meets structural reinforcement.Composition graphs 1, two sides in groove are connected with right angle, bottom surface; Composition graphs 2, two sides in groove are connected with inclined-plane, bottom surface, and inclined-plane mainly plays the effect of support side cantilever, and therefore, slope is 20 °-45 °.
Arrange bottom groove 2 under pvc gutter is got rid of in time and ooze ponding.
The bed course 4 be made up of medium coarse sand is set between groove 2 and EPS roadbed filling 1, plays leveling and drainage.
Arranging one deck steel concrete leveling layer above EPS roadbed filling 1, steel concrete leveling layer 5 is construction road surface structare layer 7.
According to substrate soil condition and draining needs, waterproof geotextiles 3 can be laid on bed course 4 both sides; Waterproof geotextiles 3 is set between EPS roadbed filling 1 and leveling layer 5.
Fig. 3 and Fig. 4 is respectively Cantilever Retaining Wall and slab column system schematic diagram, through experiment, the pressure of Cantilever Retaining Wall and slab column system concentrates on retaining wall foundation base plate place, and the utility model can make basic bottom pressure be evenly distributed in whole roadbed section width (groove) scope, when upper load is constant, base pressure obviously reduces, and can meet maximum subsidiary stress (20Kpa) requirement at subway or pipeline requirements top.
Table 1 conventional EPS roadbed section foundation bottom and the utility model roadbed section foundation bottom pressure comparison
Claims (6)
1. a steel concrete groove type roadbed, is characterized in that, comprises the groove (2) be made up of steel concrete and the EPS roadbed filling (1) being positioned at groove (2);
Groove (2) inner bottom surface is parallel to road surface, and lateral vertical is in road surface;
Groove (2) bottom arranges gutter (6);
The bed course (4) be made up of medium coarse sand is set between groove (2) and EPS roadbed filling (1);
EPS roadbed filling (1) top arranges one deck steel concrete leveling layer (5).
2. steel concrete groove type roadbed according to claim 1, is characterized in that, groove (2) inner bottom surface is connected with right angle, side or inclined-plane connects.
3. steel concrete groove type roadbed according to claim 1 and 2, is characterized in that, the concrete strength of groove (2) is C40, and thickness is 20cm.
4. steel concrete groove type roadbed according to claim 1, is characterized in that, EPS roadbed filling (2) is made up of EPS block, and EPS block is successively fissure of displacement laying from bottom to top, and the density of each EPS block is not less than 20kg/m
3.
5. the steel concrete groove type roadbed according to 1, it is characterized in that, between groove (2) and EPS roadbed filling (1), set gradually waterproof geotextiles (3), the bed course (4) be made up of medium coarse sand and waterproof geotextiles (3) from inside to outside.
6. steel concrete groove type roadbed according to claim 1 or 5, is characterized in that, arrange waterproof geotextiles (3) between EPS roadbed filling (1) and leveling layer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420600436.XU CN204199131U (en) | 2014-10-16 | 2014-10-16 | A kind of steel concrete groove type roadbed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420600436.XU CN204199131U (en) | 2014-10-16 | 2014-10-16 | A kind of steel concrete groove type roadbed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204199131U true CN204199131U (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420600436.XU Active CN204199131U (en) | 2014-10-16 | 2014-10-16 | A kind of steel concrete groove type roadbed |
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| CN (1) | CN204199131U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972470A (en) * | 2019-04-10 | 2019-07-05 | 四川省交通勘察设计研究院有限公司 | A kind of assembled subgrade construction system and technique suitable for deep soft foundation |
| CN110205890A (en) * | 2019-06-20 | 2019-09-06 | 中国五冶集团有限公司 | A kind of underground tunnel upper lightweight EPS road structure and its construction method |
| CN114293418A (en) * | 2021-12-17 | 2022-04-08 | 深圳市中金岭南有色金属股份有限公司科学技术开发院 | Construction method and structure of red mud-based concrete pavement |
-
2014
- 2014-10-16 CN CN201420600436.XU patent/CN204199131U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972470A (en) * | 2019-04-10 | 2019-07-05 | 四川省交通勘察设计研究院有限公司 | A kind of assembled subgrade construction system and technique suitable for deep soft foundation |
| CN110205890A (en) * | 2019-06-20 | 2019-09-06 | 中国五冶集团有限公司 | A kind of underground tunnel upper lightweight EPS road structure and its construction method |
| CN114293418A (en) * | 2021-12-17 | 2022-04-08 | 深圳市中金岭南有色金属股份有限公司科学技术开发院 | Construction method and structure of red mud-based concrete pavement |
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