CN220246597U - Temporary bridge crossing device for maintaining tunnel transverse ditch - Google Patents
Temporary bridge crossing device for maintaining tunnel transverse ditch Download PDFInfo
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- CN220246597U CN220246597U CN202321613331.3U CN202321613331U CN220246597U CN 220246597 U CN220246597 U CN 220246597U CN 202321613331 U CN202321613331 U CN 202321613331U CN 220246597 U CN220246597 U CN 220246597U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 166
- 239000010959 steel Substances 0.000 claims abstract description 166
- 238000012423 maintenance Methods 0.000 claims abstract description 22
- 230000001174 ascending effect Effects 0.000 claims 1
- 239000004567 concrete Substances 0.000 abstract description 12
- 238000010276 construction Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Road Paving Structures (AREA)
Abstract
The utility model provides a temporary bridge crossing device for maintaining a tunnel cross ditch, which comprises a plurality of bridge crossing modules, wherein each bridge crossing module comprises a middle bridge crossing section, two ends of each middle bridge crossing section are respectively provided with a first bridge crossing step with upward gradient and a second bridge crossing step with downward gradient, each first bridge crossing step and each second bridge crossing step comprise a first I-shaped steel and a first steel plate, the upper surface of each first I-shaped steel is provided with a first steel plate, each middle bridge crossing section comprises angle steel, a second steel plate and a second I-shaped steel, the upper surface of each angle steel is provided with a second steel plate, two sides of each angle steel and each second steel plate are respectively connected with one longitudinal end of each second I-shaped steel, the other longitudinal end of each second I-shaped steel is connected with the first I-shaped steel and the first steel plate on the same side, and two ends of each second steel plate are connected with the first steel plate on the same side. The utility model can protect the strength of the newly maintained cross-cut groove shoulder-pad concrete from being rolled by an automobile before reaching the design strength, can ensure that the shoulder-pad concrete is maintained for a sufficient time, and ensures the maintenance quality of the cross-cut groove.
Description
Technical Field
The utility model relates to the technical field of bridge crossing devices, in particular to a temporary bridge crossing device for maintaining a tunnel transverse ditch.
Background
Compared with bridges, tunnels have the advantages of less occupied land, low noise and low tail gas pollution, and meanwhile, the permeability of the whole city landscape is not affected, so that tunnel engineering is rapidly developed in cities with increasingly tense land and increasingly high requirements on environment.
Because the tunnel is buried under the road, the elevation of the tunnel is generally lower than that of the municipal road, and in order to avoid the situation that rainwater floods the tunnel and causes danger to traffic in the tunnel, a transverse ditch needs to be built in the tunnel.
The tunnel transverse ditch is an essential engineering drainage structure in tunnel engineering construction. The drainage structure is mainly used for intercepting rainwater on a road, draining rainwater in the open section of the tunnel and the buried section of the tunnel into a side ditch of the tunnel in time and then draining the rainwater into a pump house of the tunnel, and sending the rainwater into a municipal rainwater pipe network through a water pump. The tunnel transverse ditch is usually arranged at the joint of the tunnel open section and the municipal road, the joint of the tunnel open section and the buried section and the lowest point of the longitudinal slope of the tunnel buried section.
In the early years, a plurality of tunnel cross-section ditch cover plates mostly adopt bolt connection type cast iron cover plates, and the cover plates, angle steel and reinforced concrete pavement layers are connected into a whole by mainly relying on bolts. Along with the growth of service life, and long-time soaking, the bolt of the transversal ditch apron of many tunnels has all produced not hard up, has finally led to the transversal ditch of cast iron apron to all produce great disease (e.g. the rotten tooth of bolt, smooth tooth, apron beat, road surface is cracked around under long-time car rolling down), consequently need to adopt novel apron (the transversal ditch of integral type) to change the maintenance urgently. Compared with the traditional transverse ditch cover plate, the integrated transverse ditch has the advantages that shoulder protection concrete needs to be poured on two sides of the transverse ditch cover plate, so that normal traffic of a tunnel is not influenced as much as possible, maintenance workers often close local traffic in early morning to maintain the transverse ditch, but because the transverse ditch needs to be maintained, part of road layers, concrete pavement layers, binding reinforcing steel bars and poured concrete are required to be chiseled off, the workload is large, a construction unit hardly completes maintenance tasks in a short time, so that traffic is usually opened just after maintenance, the maintenance time of the shoulder protection concrete of the transverse ditch just maintained is insufficient, the strength is rolled by passing vehicles without reaching design strength, and damage occurs after the transverse ditch is maintained.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model provides a temporary bridge crossing device for repairing a transverse ditch of a tunnel, which can better play a temporary protection role on the transverse ditch, is convenient for the maintenance of shoulder-protecting concrete of the transverse ditch, improves the maintenance quality of the transverse ditch, and can ensure the normal passing of automobiles in the tunnel.
The technical scheme adopted by the utility model is as follows:
a temporary bridge crossing device for repairing a tunnel cross-sectional ditch, wherein: including a plurality of bridge module, every bridge module all includes middle bridge section, every middle bridge section's both ends set up first bridge step that the slope is upwards and second bridge step that the slope is downthehole respectively, first bridge step and second bridge step all include first I-steel and first steel sheet, first I-steel upper surface sets up first steel sheet, middle bridge section includes angle steel, second steel sheet and second I-steel, the angle steel upper surface sets up the second steel sheet, a longitudinal end of second I-steel is all connected to angle steel and second steel sheet both sides, another longitudinal end connection homonymy of second I-steel first I-steel and first steel sheet, second steel sheet both ends and homonymy first steel sheet are connected.
Preferably, the temporary bridge crossing device for repairing a tunnel cross ditch comprises: the first I-steel comprises four I-steel I-bars which are arranged in parallel at equal intervals, and the interval of each I-steel I-bar I is 15-20cm.
Preferably, the temporary bridge crossing device for repairing a tunnel cross ditch comprises: the angle steel comprises six angle steel I which are arranged at equal intervals.
Preferably, the temporary bridge crossing device for repairing a tunnel cross ditch comprises: the second I-steel comprises four I-steel II, and the I-steel II is arranged on two sides of the angle steel and the second steel plate.
Preferably, the temporary bridge crossing device for repairing a tunnel cross ditch comprises: the gradient of the first I-steel is 1:10.
Preferably, the temporary bridge crossing device for repairing a tunnel cross ditch comprises: and the end part of the angle steel is matched with the end part of the second I-shaped steel and welded.
Preferably, the temporary bridge crossing device for repairing a tunnel cross ditch comprises: and a plurality of steel nail holes are formed in one end part of the first steel plate, which is far away from the second I-steel.
The utility model has the advantages that:
(1) The temporary bridge crossing device for maintaining the transverse ditch of the tunnel can protect the strength of the newly maintained transverse ditch shoulder-protecting concrete from being rolled by an automobile before reaching the design strength, can ensure that the shoulder-protecting concrete obtains sufficient maintenance time and ensures the maintenance quality of the transverse ditch.
(2) The temporary bridge crossing device for maintaining the transverse ditch of the tunnel can reduce the influence of the transverse ditch maintenance on the traffic in the tunnel, and a transverse ditch maintenance worker regulates the traffic in the tunnel under the condition of no or less vehicles at night, temporarily seals the traffic for maintaining the transverse ditch, and after shoulder protection concrete is poured, the bridge crossing device is arranged on the transverse ditch, so that the traffic can be timely opened without influencing the normal traffic passing in the tunnel in the daytime.
Drawings
FIG. 1 is an elevational view of a temporary gap bridge apparatus for cross-sectional trench repair.
FIG. 2 is a bottom view of the cross-sectional trench repair temporary bridge device.
Figure 3 shows a cross-section of the bridge device A-A.
Fig. 4 is a cross-sectional view of the bridge device B-B.
Fig. 5 is a view showing the cutting of the angle steel end.
Fig. 6 is a diagram showing a welded connection of the angle steel end and the second i-steel end.
FIG. 7 is a paving elevation view of a temporary gap bridge device for cross-sectional trench maintenance in connection with an embodiment of the construction.
Detailed Description
The utility model will be further described with reference to the following specific drawings and examples.
1-7, a temporary bridge crossing device for maintaining a tunnel cross ditch comprises a plurality of bridge crossing modules, each bridge crossing module comprises a middle bridge crossing section 2, two ends of each middle bridge crossing section 2 are respectively provided with a first bridge crossing step 1 with an upward gradient and a second bridge crossing step 3 with a downward gradient, each first bridge crossing step 1 and each second bridge crossing step 3 comprises a first I-shaped steel 11 and a first steel plate 12, the upper surface of each first I-shaped steel 11 is provided with a first steel plate 12, each middle bridge crossing section 2 comprises angle steel 21, a second steel plate 22 and a second I-shaped steel 23, the upper surface of each angle steel 21 is provided with a second steel plate 22, two sides of each angle steel 21 and each second steel plate 22 are respectively connected with one longitudinal end of each second I-shaped steel 23, the other longitudinal end of each second I-shaped steel 23 is connected with the first I-shaped steel 11 and the first steel plate 12 on the same side, and two ends of each second steel plate 22 are connected with the first steel plate 12 on the same side.
Wherein: the first I-steel 11 comprises four I-steel I-bars 110 which are arranged in parallel at equal intervals, and the interval between each I-steel I-bar 110 is 15 cm to 20cm.
Wherein: the angle 21 includes six equally spaced angle ones 210.
Wherein: the second i-steel 23 comprises four second i-steel plates 230, and the second i-steel plates 230 are arranged on two sides of the angle steel 21 and the second steel plate 22.
Wherein: the gradient of the first I-steel 11 is 1:10.
Wherein: the end of the angle steel 21 is matched with the end of the second I-steel 23 and welded.
Wherein: the end portion of the first steel plate 12, which is far away from the second I-steel 23, is provided with a plurality of steel nail holes 13.
As can be seen from fig. 1 and 2, each bridge passing module comprises a first bridge passing step 1, a second bridge passing step 3 and an intermediate bridge passing 2, and in particular mainly comprises a first steel plate 12, a first i-steel 11, a second i-steel 23, angle steels 21, a second steel plate 22 and steel nails 14, wherein the first steel plate 12 and the second steel plate 22 are bridge passing bridge panels, the first i-steel 11, the second i-steel 23 and the angle steels 21 are bridge passing frameworks, the steel nails mainly fix the bridge passing on a road surface, the bridge passing movement caused by the driving of a vehicle through the bridge passing is prevented, each bridge passing module is 60cm wide and 350cm long, and 3 steel nails 14 are respectively arranged on the side edges of the first bridge passing step 1 and the second bridge passing step 3.
The bridge surface steel plate is divided into a first steel plate 12 and a second steel plate 22, the thickness of the first steel plate 12 and the second steel plate 22 is 2cm, the height of the first I-steel 11 and the second I-steel 23 is 10cm, the length is 1m, the height of the angle steel 21 is 5cm, and the length of steel nails arranged in the steel nail holes 13 is 12.5cm.
The first I-steel 11 is formed by four I-steels 110 with the length of 1m according to the following steps of 1:10, and welding the first I-steel 11 along the bridge direction with the first steel plate 12 to form a first bridge step 1 and a second bridge step 3 on two sides, wherein the spacing between the first 110I-steels is 15-20cm, as shown in the section B-B in figure 4.
The middle bridge section 2 is formed by welding 4 No. 10 second I-shaped steels 23, 6 angle steels 21 and 2cm thick second steel plates 22, two parallel transverse bridges of the second I-shaped steels 23 are respectively arranged on two sides of the transverse ditch shoulder-protecting concrete, as shown in fig. 7, wherein the No. 5 angle steels 21 form a middle bridge framework, deformation generated when an automobile passes through a bridge deck can be reduced, as shown in a section A-A in fig. 3, in order to better weld and connect the No. 5 angle steels 21 and the second I-shaped steels 23 together, the two end heads of the No. 5 angle steels 21 are cut, so that the end parts of the angle steels 21 are matched with the end parts of the second I-shaped steels 23, and fig. 6 is a large-scale view of a connecting node of the No. 5 angle steels 21 end heads and the second I-shaped steels 23.
At present, the width of a transverse ditch 4 of a domestic tunnel is 50cm, the width of shoulder protecting concrete 5 is 30cm, therefore, the clear span of the middle bridge crossing length is at least 110cm, the middle bridge crossing length of the device is 140cm, as shown in fig. 7, the device is used for facilitating a car to stably and comfortably drive across a bridge, a first I-steel 11 of No. 10 is used for cutting according to the gradient of 1:10 and welding with a first steel plate 12 to form bridge crossing steps on two sides, as shown in fig. 6, the height of the first I-steel of No. 10 is 10cm, the horizontal length of a bridge crossing step skeleton is 100cm, the horizontal projection length of the first steel plate 12 is 105cm, and the end head extends 5cm for fixing steel nails, so that the horizontal projection length of the whole bridge crossing device is 350cm.
In the actual maintenance project, in order to facilitate transportation and installation of the bridge passing device, the device is transported to the site in three parts, namely, a first bridge passing step 1, a second bridge passing step 3 and an intermediate bridge passing step 2, after the maintenance of the cross-section groove in the tunnel is completed, the bridge passing device is laid in the transverse direction by taking the cross-section groove 4 of the tunnel as the center line, when the first bridge passing step 1, the second bridge passing step 3 and the intermediate bridge passing step 2 are laid, the first steel plate 12 of the bridge passing step surface and the second steel plate 22 of the intermediate bridge passing surface are welded and connected into a whole, steel nails are driven into the pavement at the ends of the bridge passing steps at the two sides, the steps are repeated until the whole cross-section groove is paved by a plurality of bridge passing devices, and finally, the bridge passing device is laid in the elevation view as shown in fig. 7.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model, and all such modifications and equivalents are intended to be encompassed in the scope of the claims of the present utility model.
Claims (7)
1. The utility model provides a tunnel transversal ditch maintenance temporary bridge device which characterized in that: including a plurality of bridge module, every bridge module all includes middle bridge section (2), every the both ends of middle bridge section (2) all set up first bridge step (1) that the slope is ascending and second bridge step (3) that the slope is decurrent respectively, first bridge step (1) and second bridge step (3) all include first I-steel (11) and first steel sheet (12), first I-steel (11) upper surface sets up first steel sheet (12), middle bridge section (2) include angle steel (21), second steel sheet (22) and second I-steel (23), angle steel (21) upper surface sets up second steel sheet (22), angle steel (21) and second steel sheet (22) both sides all connect a vertical tip of second I-steel (23), first I-steel (11) and first steel sheet (12) of second I-steel (23) another vertical tip connection homonymy, second steel sheet (22) both ends and homonymy first steel sheet (12) are connected.
2. The temporary bridge crossing apparatus for tunnel cross ditch maintenance according to claim 1, wherein: the first I-steel (11) comprises four I-steels (110) which are arranged in parallel at equal intervals, and the distance between each I-steel (110) is 15 cm to 20cm.
3. The temporary bridge crossing apparatus for tunnel cross ditch maintenance according to claim 1, wherein: the angle steel (21) comprises six angle steel I (210) which are arranged at equal intervals.
4. The temporary bridge crossing apparatus for tunnel cross ditch maintenance according to claim 1, wherein: the second I-steel (23) comprises four I-steel II (230), and the I-steel II (230) is arranged on two sides of the angle steel (21) and the second steel plate (22).
5. The temporary bridge crossing apparatus for tunnel cross ditch maintenance according to claim 1, wherein: the gradient of the first I-steel (11) is 1:10.
6. The temporary bridge crossing apparatus for tunnel cross ditch maintenance according to claim 1, wherein: and the end part of the angle steel (21) is matched with the end part of the second I-shaped steel (23) and welded.
7. The temporary bridge crossing apparatus for tunnel cross ditch maintenance according to claim 1, wherein: a plurality of steel nail holes (13) are formed in one end portion, far away from the second I-steel (23), of the first steel plate (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321613331.3U CN220246597U (en) | 2023-06-25 | 2023-06-25 | Temporary bridge crossing device for maintaining tunnel transverse ditch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321613331.3U CN220246597U (en) | 2023-06-25 | 2023-06-25 | Temporary bridge crossing device for maintaining tunnel transverse ditch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220246597U true CN220246597U (en) | 2023-12-26 |
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ID=89263490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321613331.3U Active CN220246597U (en) | 2023-06-25 | 2023-06-25 | Temporary bridge crossing device for maintaining tunnel transverse ditch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220246597U (en) |
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2023
- 2023-06-25 CN CN202321613331.3U patent/CN220246597U/en active Active
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