CN211777452U - Collapsible invert landing stage suitable for tunnel invert construction - Google Patents
Collapsible invert landing stage suitable for tunnel invert construction Download PDFInfo
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- CN211777452U CN211777452U CN202020326778.2U CN202020326778U CN211777452U CN 211777452 U CN211777452 U CN 211777452U CN 202020326778 U CN202020326778 U CN 202020326778U CN 211777452 U CN211777452 U CN 211777452U
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- main bridge
- invert
- tunnel
- trestle
- bridge part
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Abstract
The utility model relates to a foldable inverted arch trestle suitable for tunnel inverted arch construction, which belongs to the technical field of tunnel construction engineering, and mainly comprises a main bridge part and an approach bridge part; the two ends of the main bridge part in the length direction are respectively and rotatably connected with the approach bridge part; the main bridge part is provided with a hydraulic telescopic column capable of controlling the height of the main bridge part. This landing stage has improved the flexibility of invert landing stage greatly, can carry out altitude mixture control, width control etc. adapts to complicated various construction environment in the tunnel better, improves the efficiency of construction, the shaping quality of being convenient for.
Description
Technical Field
The utility model belongs to the technical field of tunnel construction engineering, specifically be a collapsible invert landing stage suitable for tunnel invert construction is related to.
Background
The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.
With the continuous development of economy in China, more and more tunnels under different geological conditions appear, and high-quality multifunctional construction machinery is particularly important to the efficiency and safety of tunnel construction. The inverted arch is an important component of lining in the tunnel construction process and is the foundation of a tunnel structure. On one hand, the pressure of the stratum at the upper part of the tunnel is effectively transmitted to the underground through a side wall structure of the tunnel or the load on the road surface, and the counter force transmitted from the stratum at the lower part of the tunnel is effectively resisted. It is in fact a foundation beam (slab) that can withstand both the permanent loads of the ground and the temporary loads (dynamic loads) of the road.
The safe inverted arch construction is not only the guarantee for the safety of constructors, but also more important for the overall safety of the tunnel. Therefore, the reasonable tunnel construction machinery is determined, the tunnel construction can be accelerated, and the safety of the tunnel can be ensured. In order to cross over the obstacle section of tunnel inverted arch construction, an inverted arch trestle is often adopted and used for passing through heavy machines such as a guniting vehicle and a loading vehicle. The inventor finds that the present inverted arch trestle has the following technical problems:
(1) the worker is under the trestle inverted arch construction space undersize, leads to inverted arch efficiency of construction low, and then influences the activity duration in whole tunnel, is unfavorable for the shaping quality.
(2) The included angle is formed between the main bridge and the approach bridge in the trestle, so that the integral transportation and movement of the trestle are not facilitated.
(3) And the existing inverted arch trestle has a leakage phenomenon, which seriously affects the safety of constructors under the trestle.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model discloses an invert landing stage suitable for tunnel invert construction.
At least one embodiment of the utility model discloses an inverted arch trestle suitable for tunnel inverted arch construction, which comprises a main bridge part and an approach bridge part; the two ends of the main bridge part in the length direction are respectively and rotatably connected with the approach bridge part; the main bridge part is provided with a hydraulic telescopic column capable of controlling the height of the main bridge part.
Further, the main bridge portion includes a first main bridge and a second main bridge; and a hydraulic telescopic rod for adjusting the distance between the two main bridges is arranged between the first main bridge and the second main bridge.
Furthermore, a welding platform for welding the hydraulic telescopic rod is arranged on the side wall of one face, opposite to each other, of the first main bridge and the second main bridge.
Further, a protection net made of steel wire ropes is arranged between the first main bridge portion and the second main bridge portion.
Furthermore, the hydraulic telescopic rod and the hydraulic telescopic column are made of high-strength compression-resistant materials.
Furthermore, truss structures are arranged inside the main bridge part and the approach bridge part; the internal members of the truss structure are hinged, and the whole truss and the main bridge are welded and fixed into a whole.
Further, the main bridge part is hinged with the bridge guiding part through a connecting rod.
Further, both ends of the connecting rod in the length direction are provided with end caps.
Furthermore, the main bridge part, the approach bridge part and the connecting rod are made of high-rigidity metal materials.
Further, the surfaces of the main bridge part and the approach bridge part are provided with anti-skid layers.
The utility model has the advantages that:
(1) this middle main bridge part of inverted arch trestle of disclosure and the partial accessible of access rotate articulatedly, and the access can rotate around it to be convenient for the holistic removal of trestle and transportation.
(2) The hydraulic telescopic columns are installed at the two ends of the main bridge in the inverted arch trestle, and the height of the trestle can be flexibly adjusted according to the construction space below the trestle.
(3) The invert trestle main bridge is connected through hydraulic telescoping rod, can be according to the vehicle wheel base adjustment distance of going above like this, has improved the practicality.
(4) The protection net that is equipped with wire rope and makes among the invert trestle between the main girder of this disclosure can prevent that the current vehicle object in trestle top from dropping to guarantee below staff's safety.
(5) The utility model discloses an antiskid ribbed tile is laid on bridge body surface in invert trestle has increased the frictional force of wheel and trestle to effectively avoided the danger of vehicle machines slippage trestle.
(6) The bridge body inside adopts the truss-like structure in the invert trestle of this disclosure, has strengthened the bearing capacity of trestle greatly, and the heavy machinery of being convenient for passes through.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
Fig. 1 is a schematic structural view of an inverted arch trestle according to an embodiment of the present invention;
fig. 2 is a top view of an inverted arch trestle according to an embodiment of the present invention;
fig. 3 is a front view of an inverted arch trestle according to an embodiment of the present invention;
fig. 4 is a schematic working diagram of an inverted arch trestle according to an embodiment of the present invention;
the bridge comprises a main bridge part 1, a bridge approach part 2, a truss structure 3, an anti-skid layer 4, a welding platform 5, a connecting rod 6, a hydraulic telescopic column 7, a hydraulic telescopic rod 8, a hydraulic telescopic rod 9, a protection net 10, an inverted arch construction area 11 and an end cap.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the inverted arch trestle structure suitable for tunnel inverted arch construction disclosed in this embodiment mainly includes a main bridge portion 1, an approach bridge portion 2, a truss structure 3, and the like, where the approach bridge portion 2 and the main bridge portion 1 are rotatably connected at two ends in the length direction, respectively, so as to realize angle adjustment. Two hydraulic telescopic columns 7 are welded at two ends of the bottom surface of the main bridge part 1 respectively, the hydraulic telescopic columns 7 are used for supporting the total weight of the whole main bridge and heavy equipment passing through the main bridge, certainly, in other embodiments, more than two hydraulic telescopic columns can be arranged, the specific number is not limited, the hydraulic telescopic columns are arranged on a platform outside an inverted arch construction area 10 at the bottom of the inverted arch trestle, and the hydraulic telescopic columns 7 at two ends can be used for working together to adjust the whole height of the inverted arch trestle and increase the operation space of constructors.
Of course, in some other embodiments, other mechanisms may be provided at the bottom of the main bridge for controlling the height of the trestle, such as using linkages supported on the outboard platforms, with height adjustment being accomplished by controlling the extension of the linkages.
As shown in fig. 2, the bridge approach portion in the present apparatus is rotatably connected to the main bridge portion at two ends in the length direction of the main bridge portion through connecting rods 6, and the bridge approach portion can rotate around the main bridge portion with the connecting rods 6 as a rotation axis, so that the bridge approach portion can be rotated when the trestle is moved, thereby facilitating transportation of the trestle, and meanwhile, in order to prevent the connecting rods from coming out when the bridge approach portion rotates, end caps 11 are respectively disposed at two ends of the connecting rods for limiting sliding of the connecting rods. In some other embodiments, through holes may also be provided at both ends of the connecting rod, through cotter pins being used to limit the movement of the connecting rod. Meanwhile, the anti-skid layers 4 are laid on the surfaces of the main bridge part and the approach bridge part, and the anti-skid layers 4 are preferably made of rubber, so that high friction force and anti-skid force can be achieved on one hand, and a damping function can be provided on the other hand.
The inverted arch trestle disclosed in the embodiment is used for passing heavy equipment such as a guniting vehicle, a loading vehicle and the like, as shown in fig. 1, a main bridge part in the trestle comprises a first main bridge part and a second main bridge part, wherein the first main bridge part and the second main bridge part are connected by a hydraulic telescopic rod 8 in front, the distance between the first main bridge part and the second main bridge part is controlled by controlling the telescopic length of the hydraulic telescopic rod 8, the passing control of vehicles with different wheel pitches can be realized,
two welding platforms 5 are respectively installed on the side walls of the opposite surfaces of the first main bridge part and the second main bridge part, and the welding platforms 5 are used for welding hydraulic telescopic rods between trestles as shown in fig. 3.
Of course, in some other embodiments, the first bridge portion and the second bridge portion may be telescopically combined through other structures, for example, the first bridge portion and the second bridge portion are connected through a multi-link mechanism, and the adjustment of the distance between the first bridge portion and the second bridge portion is realized through the rotation of the multi-link mechanism.
In the embodiment, the main bridge part 1, the approach bridge part 2 and the connecting rod 11 are made of high-rigidity metal materials; the hydraulic telescopic rod 8 and the hydraulic telescopic column 7 are made of high-strength compression-resistant materials.
As shown in fig. 2, because the current trestle mechanism mostly has a hollow-out phenomenon, and the operator at the bottom of the trestle can not work normally, a protection net 9 made by a steel wire rope is further arranged between the first main bridge part and the second main bridge part in the embodiment, the protection net 9 can be bound between the first main bridge and the second main bridge, so that the vehicle object moving in the same direction above the trestle can be prevented from falling on the ground, and the safety of the operator in the inverted arch below can be ensured.
Further, as shown in fig. 4, the bridge part 1 and the approach bridge part 2 in the present embodiment are internally provided with a truss mechanism 3 composed of a plurality of tie rods. The internal members of the truss mechanism 3 are hinged, and the whole truss mechanism 3 and the main bridge part 1 are welded and fixed into a whole. Therefore, the whole bearing capacity of the trestle is greatly enhanced, and heavy machinery can pass through the trestle conveniently.
Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.
Claims (10)
1. A foldable inverted arch trestle suitable for tunnel inverted arch construction is characterized by comprising a main bridge part and an approach bridge part; the two ends of the main bridge part in the length direction are respectively and rotatably connected with the approach bridge part; the main bridge part is provided with a hydraulic telescopic column for adjusting the height of the main bridge part.
2. The collapsible invert trestle for tunnel invert construction of claim 1 wherein said main bridge section comprises a first main bridge and a second main bridge; and a hydraulic telescopic rod for adjusting the distance between the two main bridges is arranged between the first main bridge and the second main bridge.
3. The collapsible invert trestle for tunnel invert construction according to claim 2 wherein welding platforms are provided on the side walls of the first and second main bridges opposite to each other for welding the hydraulic telescopic rods.
4. The collapsible invert trestle for tunnel invert construction according to claim 2, wherein a protective net made of steel wire rope is provided between the first main bridge section and the second main bridge section.
5. The collapsible invert trestle for tunnel invert construction according to any of claims 1-2, wherein the hydraulic telescoping rods and hydraulic telescoping columns are made of high-strength compression-resistant material.
6. The collapsible invert trestle for tunnel invert construction according to claim 1, wherein said main bridge section and said approach section are provided with truss-like structures inside; the internal members of the truss structure are hinged, and the whole truss and the main bridge are welded and fixed into a whole.
7. The collapsible invert trestle for tunnel invert construction according to claim 1, wherein the main bridge section is hinged to the bridge girder section by means of a connecting rod.
8. The collapsible invert trestle for tunnel invert construction according to claim 7, wherein the connecting rods are provided with end caps at both ends in the length direction.
9. The foldable inverted arch trestle suitable for tunnel inverted arch construction as claimed in claim 7, wherein the main bridge part, the approach bridge part and the connecting rods are made of high-rigidity metal materials.
10. The collapsible invert trestle for tunnel invert construction according to claim 1, wherein the surfaces of the main bridge section and the approach section are provided with anti-slip layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020326778.2U CN211777452U (en) | 2020-03-16 | 2020-03-16 | Collapsible invert landing stage suitable for tunnel invert construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020326778.2U CN211777452U (en) | 2020-03-16 | 2020-03-16 | Collapsible invert landing stage suitable for tunnel invert construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211777452U true CN211777452U (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020326778.2U Expired - Fee Related CN211777452U (en) | 2020-03-16 | 2020-03-16 | Collapsible invert landing stage suitable for tunnel invert construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211777452U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113089453A (en) * | 2021-04-09 | 2021-07-09 | 中铁三局集团有限公司 | Inverted arch trestle capable of being freely adjusted |
| CN113265938A (en) * | 2021-05-24 | 2021-08-17 | 中国建筑第四工程局有限公司 | Movable adjustable bridge deck |
-
2020
- 2020-03-16 CN CN202020326778.2U patent/CN211777452U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113089453A (en) * | 2021-04-09 | 2021-07-09 | 中铁三局集团有限公司 | Inverted arch trestle capable of being freely adjusted |
| CN113089453B (en) * | 2021-04-09 | 2022-12-16 | 中铁三局集团有限公司 | Inverted arch trestle capable of being adjusted freely |
| CN113265938A (en) * | 2021-05-24 | 2021-08-17 | 中国建筑第四工程局有限公司 | Movable adjustable bridge deck |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201027 Termination date: 20210316 |