Anti-rockfall shading shed suitable for being used between two tunnel entrances

Abstract

The utility model relates to the technical field of tunnel protection, in particular to a rockfall-preventing shading shed suitable for being used between two tunnel portal openings, which comprises a steel arch group and a shading top fixedly mounted on the upper surface of the steel arch group. The steel arch group comprises a plurality of steel arches; a plurality of steel arch bases are arranged on the left side and the right side of the steel arch group; a supporting rod is fixedly mounted on each steel arch base; the supporting rods are fixedly connected with arch feet of the steel arches in a one-to-one correspondence mode. The front end and the rear end of the steel arch set are each provided with a pair of supporting piles, the pair of supporting piles at the front end of the steel arch set are fixedly connected with the two steel arch bases located at the foremost portion respectively, and the pair of supporting piles at the rear end of the steel arch set are fixedly connected with the two steel arch bases located at the rearmost portion respectively. The supporting piles in the same pair are jointly connected with a steel cable net. The light ray impact on a driver when the driver goes in and out of the tunnel can be relieved, and meanwhile the protection effect on broken stones falling off from the slope above the tunnel portal is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel protection, in particular to a rockfall prevention sunshade shed suitable for two tunnel openings. Background Art

[0002] The light in the tunnel mainly comes from the artificial lighting system, and the brightness of the artificial lighting system used in the tunnel is usually low. Therefore, there is a significant difference in light brightness inside and outside the tunnel. For drivers driving through the tunnel during the day, the impact of this light brightness difference is more significant; and in continuous mountainous areas, there are often situations where two tunnels are very close to each other. At this time, the driver will experience a "dark-bright-dark" process in a very short period of time. The light brightness difference when entering and exiting the tunnel will interfere with the driver's vision, posing certain safety hazards.

[0003] By adjusting the light at the tunnel entrance, the driver can be made to adapt to the light in a shorter time, which ensures the safety of vehicles and reduces the probability of danger. At present, the main measure for adjusting the light at the tunnel entrance is to set up light-reducing structures. However, in actual applications, the geological conditions at the tunnel entrance are complex, and the protection effect of the steep slope above the tunnel entrance is weak. If the slope above the tunnel entrance falls with debris, it may cause damage to the driver, vehicle and light-reducing structure.

[0004] Based on this, it is necessary to invent a rockfall prevention sunshade suitable for use between two tunnel entrances, which can reduce the light impact on drivers when entering and exiting the tunnel, while increasing the protection against gravel falling from the slope above the tunnel entrance. Utility Model Content

[0005] The utility model provides a rockfall-proof light-shielding shed suitable for between two tunnel openings in order to solve the problem that the existing light-reducing structures lack the protective effect on the broken stones falling from the slope above the tunnel opening.

[0006] The utility model is realized by adopting the following technical solutions:

[0007] A rockfall prevention sunshade applicable to two tunnel openings, comprising a steel arch group and a sunshade roof, wherein the sunshade roof is fixedly mounted on the upper surface of the steel arch group; the steel arch group comprises a plurality of steel arches;

[0008] A plurality of steel arch bases are arranged on both sides of the steel arch group, and each steel arch base is located under the arch foot of each steel arch in a one-to-one correspondence; a support rod is fixedly installed on each steel arch base; each support rod is fixedly connected to the arch foot of each steel arch in a one-to-one correspondence; a plurality of cross beams are fixedly installed on the support rods located on the same side of the steel arch group;

[0009] A pair of supporting piles are provided at both the front and rear ends of the steel arch group, and the pair of supporting piles at the front end of the steel arch group are respectively fixedly connected to the two steel arch bases located at the front, and the pair of supporting piles at the rear end of the steel arch group are respectively fixedly connected to the two steel arch bases located at the rear;

[0010] A first anchor rod is fixedly connected to each support pile, and each first anchor rod is anchored to the slope surface above the tunnel entrance; a steel cable net is commonly connected to the same pair of support piles; the other side of the steel cable net is fixed to the slope surface above the tunnel entrance through an anchor rod.

[0011] Furthermore, each steel arch includes a plurality of steel plates and a plurality of connecting plates, and each connecting plate connects two adjacent steel plates.

[0012] Furthermore, each steel arch is provided with overhanging eaves on both sides.

[0013] Furthermore, the sunshade roof is arched, and is formed by a plurality of sunshade panels connected and assembled together.

[0014] Furthermore, a plurality of rectangular tubes are provided on the outer surface of the sunshade roof, and each rectangular tube is connected to the steel arch group by bolts.

[0015] The structural design of the utility model is reasonable and reliable. For the gravel falling from the slope above the tunnel entrance, the steel cable net can effectively buffer the impulse force of the gravel and prevent the impact of the gravel; and the sunshade roof has the effect of shading and reducing light, which can reduce the visual difference caused by the alternation of light and dark, and effectively eliminate the safety hazard caused by the interference of light brightness difference with the driver's vision; in addition, the main materials used are all commonly used materials in tunnel engineering, which are easy to obtain during construction, are light and convenient as a whole, and are easy to build and construct. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a schematic diagram of the plane structure of the utility model.

[0018] Figure 3 is along Figure 2 Cross-sectional view of line II.

[0019] In the figure: 1-steel arch, 11-steel plate, 12-connecting plate, 13-eaves, 2-shading roof, 21-rectangular tube, 3-steel arch base, 4-support rod, 5-support pile, 6-cross beam, 7-first anchor rod, 8-steel cable net, 9-anchor rod. DETAILED DESCRIPTION

[0020] A rockfall prevention sunshade applicable to two tunnel openings, comprising a steel arch group and a sunshade roof 2, wherein the sunshade roof 2 is fixedly mounted on the upper surface of the steel arch group; the steel arch group comprises a plurality of steel arches 1;

[0021] A plurality of steel arch bases 3 are provided on both sides of the steel arch group, and each steel arch base 3 is located under the arch foot of each steel arch 1 in a one-to-one correspondence; a support rod 4 is fixedly installed on each steel arch base 3; each support rod 4 is fixedly connected to the arch foot of each steel arch 1 in a one-to-one correspondence; a plurality of cross beams 6 are fixedly installed on the support rods 4 located on the same side of the steel arch group;

[0022] A pair of supporting piles 5 are provided at both the front and rear ends of the steel arch group, and the pair of supporting piles 5 at the front end of the steel arch group are respectively fixedly connected to the two steel arch bases 3 located at the front, and the pair of supporting piles 5 at the rear end of the steel arch group are respectively fixedly connected to the two steel arch bases 3 located at the rear;

[0023] Each support pile 5 is fixedly connected to a first anchor rod 7, and each first anchor rod 7 is anchored to the slope above the tunnel entrance; the same pair of support piles 5 are commonly connected to a steel cable net 8; the other side of the steel cable net 8 is fixed to the slope above the tunnel entrance by an anchor rod 9.

[0024] Each steel arch 1 includes a plurality of steel plates 11 and a plurality of connecting plates 12 , and each connecting plate 12 connects two adjacent steel plates 11 .

[0025] Each steel arch 1 is provided with overhanging eaves 13 on both sides.

[0026] The sunshade roof 2 is arched, and is composed of a plurality of sunshade panels connected and assembled together.

[0027] The outer surface of the sunshade roof 2 is provided with a plurality of rectangular tubes 21, and each rectangular tube 21 is connected to a steel arch group by bolts.

[0028] When constructing the rockfall-proof sunshade shed, the construction workers first connect several sections of steel plates 11 and several connecting plates 12 to form several steel arches 1, and the several steel arches 1 are regarded as a steel arch group; then, multiple steel arch bases 3 are set on the left and right sides of the roadbed between the two tunnels, and the multiple steel arch bases 3 are evenly distributed between the two tunnels; each steel arch base 3 is fixedly installed with a support rod 4; then, each support rod 4 is fixedly connected to the arch foot of each steel arch 1 one by one; and multiple cross beams 6 are fixedly installed on the support rods 4 on the same side of the steel arch group; then, the construction workers use several rectangular tubes 21 to fix the sunshade 2 on the upper surface of the steel arch group; then, on the steel A pair of supporting piles 5 are arranged at the front and rear ends of the arch group, and the pair of supporting piles 5 at the front end of the steel arch group are respectively fixedly connected to the two steel arch bases 3 located at the front, and the pair of supporting piles 5 at the rear end of the steel arch group are respectively fixedly connected to the two steel arch bases 3 located at the rear, that is, the two pairs of supporting piles 5 are respectively installed at the entrances of the two tunnels; then the first anchor rod 7 is fixedly connected to each supporting pile 5, and each first anchor rod 7 is anchored to the corresponding slope surface above the tunnel entrance; finally, the construction personnel connect one side of the steel cable net 8 to the same pair of supporting piles 5, and the other side of the steel cable net 8 is fixedly hung on the anchor rod 9, and the other side of the steel cable net 8 is fixed to the corresponding slope surface above the tunnel entrance through the anchor rod 9.

[0029] During the specific implementation process, the support pile 5 is fixed at the entrance of the tunnel and is higher than the entrance of the tunnel; the steel arch group is higher than the entrance of the tunnel; the steel arch base 3 is a reinforced concrete structure; preferably, the sunshade is a colored transparent plexiglass; the steel plate 11 and the support rod 4 are both made of I-beams, and the connecting plate 12 is a steel connecting plate with a size of 200mm×180mm×15mm; the rectangular tube 21 is arranged longitudinally on the outer surface of the sunshade roof 2; the eaves 13 are made of steel sections, which can divert rainwater, fine sand and gravel to the outside of the roadbed on both sides without invading the driving road environment; preferably, the anti-falling rock sunshade is suitable for scenes where the distance between two tunnels is not more than 30m.

[0030] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rockfall prevention sunshade suitable for use between two tunnel openings, characterized in that: It comprises a steel arch group and a sunshade roof (2), wherein the sunshade roof (2) is fixedly mounted on the upper surface of the steel arch group; the steel arch group comprises a plurality of steel arches (1); A plurality of steel arch bases (3) are provided on both sides of the left and right sides of the steel arch group, and each steel arch base (3) is located one-to-one below the arch foot of each steel arch (1); a support rod (4) is fixedly installed on each steel arch base (3); each support rod (4) is fixedly connected to the arch foot of each steel arch (1) one-to-one; and a plurality of cross beams (6) are fixedly installed on the support rods (4) located on the same side of the steel arch group; A pair of support piles (5) are provided at both the front and rear ends of the steel arch group, and the pair of support piles (5) at the front end of the steel arch group are respectively fixedly connected to the two steel arch bases (3) located at the front, and the pair of support piles (5) at the rear end of the steel arch group are respectively fixedly connected to the two steel arch bases (3) located at the rear; Each support pile (5) is fixedly connected to a first anchor rod (7), and each first anchor rod (7) is anchored to the slope surface above the tunnel entrance; a pair of support piles (5) is commonly connected to a steel cable net (8); the other side of the steel cable net (8) is fixed to the slope surface above the tunnel entrance via an anchor rod (9).

2. The anti-rockfall awning suitable for use between two tunnel openings according to claim 1, characterized in that: Each steel arch (1) comprises a plurality of steel plate sections (11) and a plurality of connecting plates (12), and each connecting plate (12) connects two adjacent steel plate sections (11).

3. The anti-rockfall awning suitable for use between two tunnel openings according to claim 1, characterized in that: Each steel arch (1) is provided with overhanging eaves (13) on both sides.

4. The anti-rockfall awning suitable for use between two tunnel openings according to claim 1, characterized in that: The shading roof (2) is arched and is composed of a plurality of shading panels connected and assembled together.

5. The anti-rockfall sunshade shed suitable for use between two tunnel openings according to claim 1, characterized in that: A plurality of rectangular tubes (21) are provided on the outer surface of the sunshade roof (2), and each rectangular tube (21) is connected to a steel arch group bolt.

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