CN212404803U - Tunnel inverted arch combined type cableway bridge abutment - Google Patents
Tunnel inverted arch combined type cableway bridge abutment Download PDFInfo
- Publication number
- CN212404803U CN212404803U CN202020850054.8U CN202020850054U CN212404803U CN 212404803 U CN212404803 U CN 212404803U CN 202020850054 U CN202020850054 U CN 202020850054U CN 212404803 U CN212404803 U CN 212404803U
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- Prior art keywords
- inverted arch
- tunnel
- bridge
- cable
- invert
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- Withdrawn - After Issue
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- 239000000463 material Substances 0.000 claims abstract description 15
- 239000004567 concrete Substances 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000004873 anchoring Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 7
- 238000009412 basement excavation Methods 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 101150097977 arch-1 gene Proteins 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model relates to a tunnel invert convolution cableway bridge abutment belongs to the bridge engineering field. The utility model discloses be provided with the tunnel at one bank or both banks of cableway bridge, the tunnel bottom is provided with the invert, and the invert is provided with foundatin material in its one end that is close to the cableway bridge, and foundatin material top is provided with the cable saddle that is used for laying the main rope, and the main rope tip strides behind the cable saddle to the horizontal direction anchor is in the backfill concrete of invert. The utility model discloses combine together the form of the abutment of cableway bridge and the inverted arch in tunnel, set up the cable saddle on the foundatin material of inverted arch end, will stride the main cable of cable saddle and anchor in turn in the backfill concrete of inverted arch. All main cables are anchored in the inverted arch in the horizontal direction after passing through the cable saddle, so that anchor cable hole turning construction is avoided, excavation is reduced, damage to the environment is reduced, and manufacturing cost and construction period are saved.
Description
Technical Field
The utility model relates to a tunnel invert convolution cableway bridge abutment belongs to the bridge engineering field.
Background
Modern cableway bridges are a temporary bridge structure widely adopted in large-scale engineering construction, vehicle loads of the cableway bridges are transmitted to a bearing main rope through a bridge deck, the main rope transmits force to anchorages anchored on two banks, and the anchorages mainly bear tension. The commonly used anchorage forms are ground ridges, anchor piles, anchor rods, hybrid anchorages and the like. An abutment (foundation material) is arranged between the anchor and the main cable, and a pulley is arranged on the abutment to realize the steering and bearing of the main cable.
The inverted arch is a reverse arch structure arranged at the bottom of the tunnel for improving the stress condition of a supporting structure at the upper part of the tunnel, is one of main components of the tunnel structure, and is used for effectively transmitting the pressure of the stratum at the upper part of the tunnel to the ground through a side wall structure of the tunnel or the load on the road surface and also effectively resisting the counter force transmitted from the stratum at the lower part of the tunnel. The inverted arch and the secondary lining form a whole tunnel, so that the structural stability is improved.
The cableway bridge needs a bridge abutment to realize vertical support, steering of a main cable and connection of a bridge deck and two banks. When a cableway bridge needs to be directly connected with a tunnel portal in some projects, the problem of coordination between a cableway bridge abutment and a tunnel structure exists. The method commonly adopted at present mainly comprises the steps of excavating a large amount of tunnels to form a layout space of a bridge abutment of a cableway bridge, then excavating anchor pits, and backfilling gravel soil after the arrangement of anchor cables and anchor cable and main cable connectors is finished.
In the prior art, a large amount of tunnel mouths need to be excavated, which is unfavorable for manufacturing cost and environmental protection; and a plurality of anchor cables need to be constructed, so that the construction period is long and the cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the utility model provides a tunnel invert convolution cableway bridge abutment can reduce the excavation, alleviates the destruction to the environment, practices thrift cost and time limit for a project.
For solving the technical problem the utility model discloses the technical scheme who adopts is: tunnel invert convolution cableway bridge abutment, one bank or both banks of cableway bridge are provided with the tunnel, and the tunnel bottom is provided with the invert, and the invert is provided with foundatin material in its one end that is close to the cableway bridge, and foundatin material top is provided with the cable saddle that is used for laying the main rope, and behind the cable saddle is strideed across to the main rope tip, with the horizontal direction anchor in the backfill concrete of invert.
Further, the method comprises the following steps: the inverted arch and the base material are of an integral structure.
Further, the method comprises the following steps: the backfill concrete is provided with a stressed steel bar at the anchoring part of the main cable.
The utility model has the advantages that: the form of a bridge abutment of the cableway bridge is combined with the inverted arch of the tunnel, the cable saddle is arranged on a base material at the end of the inverted arch, and a main cable crossing the cable saddle is anchored in the backfill concrete of the inverted arch in batches. All main cables are anchored in the inverted arch in the horizontal direction after passing through the cable saddle, so that anchor cable drilling construction is avoided, excavation is reduced, damage to the environment is reduced, and manufacturing cost and construction period are saved.
Drawings
Fig. 1 is an elevation view of the present invention;
fig. 2 is a plan view of the present invention;
fig. 3 is a transverse cross-sectional view of the present invention.
The labels in the figure are: 1-inverted arch, 2-base material, 3-main cable, 4-cable saddle, 5-backfill concrete, 6-main cable anchoring section, 7-tunnel lining, 8-road surface and 9-railing.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1-3, the utility model discloses be provided with the tunnel at one bank or both banks of cableway bridge, the tunnel bottom is provided with inverted arch 1, and inverted arch 1 is provided with foundatin material 2 in its one end that is close to the cableway bridge, and foundatin material 2 tops are provided with the cable saddle 4 that is used for laying main rope 3, and behind main rope 3 tip strideed cable saddle 4, with the horizontal direction anchor in the backfill concrete 5 of inverted arch 1. The main ropes 3 are anchored in batches by using the backfill concrete 5 of the inverted arch 1 at the end of the tunnel, and correspondingly, the abutment at the other bank of the cableway bridge adopts a conventional arrangement mode.
In order to make the structure more firm and reliable, the inverted arch 1 and the base material 2 are the reinforced concrete structure of an integrated structure. The backfill concrete 5 is provided with a stressed steel bar at the anchoring part of the main rope 3, and the stressed steel bar can be integrated with a steel bar in the inverted arch 1.
Take only to be provided with the tunnel at a bank of cableway bridge as an example, the utility model discloses a concrete process steps do:
(1) excavating and constructing a tunnel and an inverted arch;
(2) pouring construction of an inverted arch;
(3) installing a cable saddle component on an inverted arch of the tunnel portal;
(4) arranging main cables on the inverted arch in batches;
(5) arranging local stressed steel bars of the main cable, and backfilling the inverted arch by using concrete;
(6) constructing a cable way bridge opposite-shore bridge abutment;
(7) and erecting a main rope.
(8) The bridge deck structure is installed.
Claims (3)
1. Tunnel invert combination type cableway bridge abutment, one bank or both banks of cableway bridge are provided with the tunnel, and the tunnel bottom is provided with invert (1), its characterized in that: a base material (2) is arranged at one end, close to a cableway bridge, of the inverted arch (1), a cable saddle (4) for laying a main cable (3) is arranged at the top of the base material (2), and the end portion of the main cable (3) is anchored in backfill concrete (5) of the inverted arch (1) in the horizontal direction after crossing the cable saddle (4).
2. The tunnel inverted arch-combined type ropeway bridge abutment of claim 1, wherein: the inverted arch (1) and the base material (2) are of an integral structure.
3. The tunnel inverted arch-combined type ropeway bridge abutment of claim 1 or 2, wherein: the backfill concrete (5) is provided with stressed steel bars at the anchoring part of the main cable (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020850054.8U CN212404803U (en) | 2020-05-20 | 2020-05-20 | Tunnel inverted arch combined type cableway bridge abutment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020850054.8U CN212404803U (en) | 2020-05-20 | 2020-05-20 | Tunnel inverted arch combined type cableway bridge abutment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212404803U true CN212404803U (en) | 2021-01-26 |
Family
ID=74402690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020850054.8U Withdrawn - After Issue CN212404803U (en) | 2020-05-20 | 2020-05-20 | Tunnel inverted arch combined type cableway bridge abutment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212404803U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111535160A (en) * | 2020-05-20 | 2020-08-14 | 中国电建集团成都勘测设计研究院有限公司 | Tunnel inverted arch combined type cableway bridge abutment |
-
2020
- 2020-05-20 CN CN202020850054.8U patent/CN212404803U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111535160A (en) * | 2020-05-20 | 2020-08-14 | 中国电建集团成都勘测设计研究院有限公司 | Tunnel inverted arch combined type cableway bridge abutment |
| CN111535160B (en) * | 2020-05-20 | 2024-06-25 | 中国电建集团成都勘测设计研究院有限公司 | Tunnel inverted arch combined cableway bridge abutment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20210126 Effective date of abandoning: 20240625 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20210126 Effective date of abandoning: 20240625 |