CN204419198U - A kind of concrete inverted arch - Google Patents
A kind of concrete inverted arch Download PDFInfo
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- CN204419198U CN204419198U CN201520044459.1U CN201520044459U CN204419198U CN 204419198 U CN204419198 U CN 204419198U CN 201520044459 U CN201520044459 U CN 201520044459U CN 204419198 U CN204419198 U CN 204419198U
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- inverted arch
- arch unit
- prefabricated inverted
- prefabricated
- unit
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Abstract
The utility model relates to building unit field, a kind of concrete inverted arch specifically, comprise multiple prefabricated inverted arch unit, the soffit of described prefabricated inverted arch unit is arc-shaped curved surface, and the upper surface of prefabricated inverted arch unit comprises horizontal surface portion and is positioned at the arc-shaped curved surface part of horizontal surface portion both sides; The upper end, both sides of prefabricated inverted arch unit is provided with abutment wall overlap joint mouth; The two ends of prefabricated inverted arch unit are respectively equipped with arcuate flanges and the arcuate recess of form fit, described arcuate flanges and arcuate recess are arranged continuously along two end faces of prefabricated inverted arch unit respectively, and multiple prefabricated inverted arch unit is connected as a whole by arcuate flanges with arcuate recess head and the tail.Described horizontal surface portion is used as the road surface of track.The utility model reliable in quality, with low cost, construct simple and safe and can construction period be shortened.
Description
Technical field
The utility model relates to building unit field, specifically a kind of concrete inverted arch.
Background technology
Inverted arch is the reverse domes being arranged on tunnel bottom for improving top supporting and protection structure stress condition, it is one of chief component of tunnel structure, the strata pressure on top, tunnel effectively will be delivered to underground by tunnel side wall structure or by the load on road surface by the one hand, but also the counter-force that effective opposing understratum, tunnel and underground water produce.Existing inverted arch adopts the method for cast-in-situ concrete to construct, and this construction method has quality and is difficult to ensure the shortcomings such as card, formwork are difficult, it is huge to expend, long construction period.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provide a kind of reliable in quality, with low cost, construct simple and safe and the technical scheme of the concrete inverted arch of construction period can be shortened.
Technical problem to be solved in the utility model realizes by the following technical solutions: a kind of concrete inverted arch, comprise multiple prefabricated inverted arch unit, the soffit of described prefabricated inverted arch unit is arc-shaped curved surface, and the upper surface of prefabricated inverted arch unit comprises horizontal surface portion and is positioned at the arc-shaped curved surface part of horizontal surface portion both sides; The upper end, both sides of prefabricated inverted arch unit is provided with abutment wall overlap joint mouth; The two ends of prefabricated inverted arch unit are respectively equipped with arcuate flanges and the arcuate recess of form fit, described arcuate flanges and arcuate recess are arranged continuously along two end faces of prefabricated inverted arch unit respectively, and multiple prefabricated inverted arch unit is connected as a whole by arcuate flanges with arcuate recess head and the tail.Described horizontal surface portion is used as the road surface of track.
The technical solution of the utility model also has: described abutment wall is taken interface and is provided with water proof rubber pad.The technical program can increase the barrier performance of concrete bearing plate and side wall lap-joint.
The technical solution of the utility model also has: described prefabricated inverted arch unit 1 adopts fibrous concrete to make.Adopt the technical program, the toughness of prefabricated inverted arch unit is high, and cracking resistance is strong.
The technical solution of the utility model also has: the width of described horizontal surface portion is 3 meters-3.5 meters.
The technical solution of the utility model also has: the span of described prefabricated inverted arch unit is 4 meters ~ 7 meters.
The technical solution of the utility model also has: the length of described prefabricated inverted arch unit is 1 meter ~ 5 meters.
Relative to prior art, the beneficial effects of the utility model are:
(1) due to prefabricated inverted arch unit of the present utility model be tie up muscle, formwork in the factory, build, maintenance and making, therefore its quality is better than cast in situs, ensure that workmanship, and owing to being in factory's centralized production, the dispersion avoiding the resource such as material, electric power uses, waste reduces, with low cost, also reduce the impact of cast in situs construction on surrounding environment, shorten construction period;
(2) concrete inverted arch of the present utility model is assembled by multiple volume, the grafting of weight rational prefabricated inverted arch unit, and the process of the transport of precast concrete arch top board, lifting, installation is simple, safety;
(3) arcuate flanges and arcuate recess are arranged continuously along two end faces of prefabricated inverted arch unit respectively, ensure the barrier performance of concrete inverted arch, and, owing to being domes, arcuate flanges and arcuate recess are not easy to crack, ensure the general stability of concrete inverted arch.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model concrete inverted arch.
Fig. 2 be along Figure 1A to sectional view.
Fig. 3 is the partial enlarged drawing in Figure 1B portion.
Fig. 4 is the top view of the utility model concrete inverted arch.
In figure: 1, prefabricated inverted arch unit, 2, horizontal surface portion, 3, arc-shaped curved surface part, 4, abutment wall overlap joint mouth, 5, arcuate flanges, 6, arcuate recess, 7, water proof rubber pad.
Detailed description of the invention
For the technical characterstic of this programme can be clearly demonstrated, with reference to the accompanying drawings the utility model detailed description of the invention is described further below.
As Figure 1-Figure 4, a kind of concrete inverted arch, comprise three prefabricated inverted arch unit 1, the soffit of described prefabricated inverted arch unit 1 is arc-shaped curved surface, the upper surface of prefabricated inverted arch unit 1 comprises horizontal surface portion 2 and is positioned at the arc-shaped curved surface part 3 of horizontal surface portion 2 both sides, and the width of described horizontal surface portion 2 is 3 meters; The span of prefabricated inverted arch unit 1 is 5.4 meters, and length is 3 meters; The upper end, both sides of prefabricated inverted arch unit 1 is provided with abutment wall overlap joint mouth 4, and described abutment wall overlap joint mouth 4 place is provided with the water proof rubber pad 7 being bonded at its surface; The two ends of prefabricated inverted arch unit 1 are respectively equipped with arcuate flanges 5 and the arcuate recess 6 of form fit, described arcuate flanges 5 and arcuate recess 6 are arranged continuously along two end faces of prefabricated inverted arch unit 1 respectively, and three prefabricated inverted arch unit 1 are connected as a whole by arcuate flanges 5 with arcuate recess 6 head and the tail.Described horizontal surface portion 2 is used as the road surface of track.
By reference to the accompanying drawings embodiment of the present utility model is elaborated above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, can also make a variety of changes under the prerequisite not departing from the utility model aim.
Claims (6)
1. a concrete inverted arch, it is characterized in that: comprise multiple prefabricated inverted arch unit (1), the soffit of described prefabricated inverted arch unit (1) is arc-shaped curved surface, and the upper surface of prefabricated inverted arch unit comprises horizontal surface portion (2) and is positioned at the arc-shaped curved surface part (3) of horizontal surface portion (2) both sides; The upper end, both sides of prefabricated inverted arch unit (1) is provided with abutment wall overlap joint mouth (4); The two ends of prefabricated inverted arch unit (1) are respectively equipped with arcuate flanges (5) and the arcuate recess (6) of form fit, described arcuate flanges (5) and arcuate recess (6) are arranged continuously along two end faces of prefabricated inverted arch unit (1) respectively, and multiple prefabricated inverted arch unit (1) is connected as a whole by arcuate flanges (5) with arcuate recess (6) head and the tail.
2. concrete inverted arch according to claim 1, is characterized in that: described abutment wall overlap joint mouth (4) place is provided with water proof rubber pad (7).
3. concrete inverted arch according to claim 1, is characterized in that: described prefabricated inverted arch unit (1) adopts fibrous concrete to make.
4., according to the arbitrary described concrete inverted arch of claim 1-3, it is characterized in that: the width of described horizontal surface portion (3) is 3 meters-3.5 meters.
5., according to the arbitrary described concrete inverted arch of claim 1-3, it is characterized in that: the span of described prefabricated inverted arch unit (1) is 4 meters ~ 7 meters.
6., according to the arbitrary described concrete inverted arch of claim 1-3, it is characterized in that: the length of described prefabricated inverted arch unit (1) is 1 meter ~ 5 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520044459.1U CN204419198U (en) | 2015-01-22 | 2015-01-22 | A kind of concrete inverted arch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520044459.1U CN204419198U (en) | 2015-01-22 | 2015-01-22 | A kind of concrete inverted arch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204419198U true CN204419198U (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520044459.1U Active CN204419198U (en) | 2015-01-22 | 2015-01-22 | A kind of concrete inverted arch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204419198U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826646A (en) * | 2019-03-06 | 2019-05-31 | 中铁十一局集团第五工程有限公司 | One-time formed tunnel segment assembly |
-
2015
- 2015-01-22 CN CN201520044459.1U patent/CN204419198U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826646A (en) * | 2019-03-06 | 2019-05-31 | 中铁十一局集团第五工程有限公司 | One-time formed tunnel segment assembly |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |