Rain-proof shed for open cut tunnel main body rain period construction

Abstract

The utility model provides a rain-proof shed for open-cut tunnel main body rain period construction, which comprises a door frame and a top beam, the door frame is located on rails consistent with the extension direction of the open-cut tunnel main body, the door frame can automatically walk along the direction of the rails, the rails are arranged on two sides of the open-cut tunnel main body, so that the open-cut tunnel main body is located in the center of the door frame, and the top beam is arranged on the top beam. Wind screens are arranged outside the two sides of the portal frame, and a truss crane is erected between the two sides of the portal frame; the top beam is located above the truss crane and comprises an arched beam and a cross beam, the arched beam is located above the cross beam, the arched beam is divided into an upper layer and a lower layer, the end of the upper-layer arched beam is arranged on the top of the portal frame in a lap joint mode, the lower-layer arched beam and the cross beam are located between the two sides of the portal frame, and a flashing board is arranged above the upper-layer arched beam. According to the open-cut tunnel, it can be effectively guaranteed that the open-cut tunnel body is not interfered by strong wind and heavy rain weather during construction, the construction progress and the construction quality are guaranteed, and a good and comfortable working environment is provided for constructors.

Description

Technical Field

[0001] The utility model belongs to the technical field of open-cut tunnel construction, and in particular relates to a rainproof shed used for the construction of an open-cut tunnel main body during rainy season. Background Art

[0002] In recent years, with the rapid development of infrastructure construction in my country, tunnel construction has received increasing attention. In the construction of open-cut tunnels, the main project cannot be constructed due to the rainy season, which will greatly affect the construction progress. The open tunnel is a large-volume reinforced concrete structure. If it is interrupted due to weather reasons during the construction process, it will have an irreversible impact on the quality of the main project, which is very unfavorable to the construction progress and quality on site. Therefore, in order to improve the construction quality and ensure the progress of the project, a rain shelter that can ensure that the main construction of the open-cut tunnel is not disturbed by strong winds and heavy rains is particularly necessary.

[0003] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Utility Model Content

[0004] The utility model aims to overcome the problem in the prior art that the main body of the open-cut tunnel is easily disturbed by strong winds and heavy rains during construction, which greatly reduces the construction progress and quality, and provides a rainproof shed for the main body of the open-cut tunnel during rainy season.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A rainproof canopy for the construction of an open-cut tunnel body during rainy season, comprising: a gantry and a top beam, the gantry being located on a track in the same direction as the extension of the open-cut tunnel body, and the gantry being able to automatically move along the track direction, the track being arranged on both sides of the open-cut tunnel body so that the open-cut tunnel body is located in the center of the gantry, both sides of the gantry being provided with windshields on the outside, and a truss being erected between the two sides of the gantry; the top beam being located above the truss, comprising: an arch beam and a cross beam, the arch beam being located above the cross beam, the arch beam being divided into an upper and lower layer, the end of the upper arch beam being placed on the top of the gantry, the lower arch beam and the cross beam being located between the two sides of the gantry, and a rain shield being arranged above the upper arch beam.

[0007] In the rainproof canopy used for construction of the main body of an open-cut tunnel during rainy season as described above, preferably, the side portion of the portal frame comprises: a square tube and a plurality of columns, the square tube being horizontally placed at the lower end of the column, and the lower ends of the plurality of columns being connected together through the square tube;

[0008] A motorized wheel is provided inside the square tube for rotation corresponding to the column, and a motor of the motorized wheel is provided outside the square tube.

[0009] Preferably, the bottom surface of the square tube is provided with holes corresponding to the motorized wheels;

[0010] The bottom of the motorized wheel is slightly protruded from the bottom surface of the square tube through the hole so as to contact the track.

[0011] Preferably, a scissor brace is connected between two adjacent columns;

[0012] A pair of limiting plates are arranged on the top of the upright column.

[0013] Preferably, a plurality of cross bars are provided between the windshield and the side of the door frame, and the plurality of cross bars are equidistantly distributed along the height direction of the column.

[0014] Preferably, support brackets are provided inside both sides of the door frame, and the support brackets connect the plurality of the columns together;

[0015] The truss crane is supported by the supporting bracket.

[0016] Preferably, the arch beams of the upper layer and the arch beams of the lower layer, as well as the arch beams of the lower layer and the cross beams are connected via reinforcing ribs.

[0017] Preferably, the arch beam of the upper layer is longer than the arch beam of the lower layer, and the end of the arch beam of the lower layer is flush with the end of the cross beam.

[0018] Preferably, both ends of the arch beam at the lower layer and both ends of the cross beam are respectively connected to the columns on both sides of the door frame.

[0019] Preferably, a plurality of support rods are laid between the rain shield and the upper arch beam, and the plurality of support rods are distributed along the length direction of the arch beam.

[0020] Beneficial effects: The utility model can effectively ensure that the main construction of the open-cut tunnel will not be disturbed by strong winds and heavy rains, thereby ensuring the construction progress and quality, and providing a good and comfortable working environment for construction personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:

[0022] Figure 1 It is the front view of the utility model;

[0023] Figure 2 It is an overall schematic diagram of the utility model;

[0024] Figure 3 It is a bottom view of the utility model;

[0025] Figure 4 A bottom view of the utility model from another perspective;

[0026] Figure 5 It is an overall schematic diagram of the top beam structure of the utility model.

[0027] In the figure: 1. windshield; 2. track; 3. truss; 4. arch beam; 5. cross beam; 6. rain shield; 7. square tube; 8. column; 9. motor wheel; 10. hole; 11. scissors support; 12. limit plate; 13. cross bar; 14. support frame; 15. reinforcement rib; 16. support rod. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the protection scope of the present invention.

[0029] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "connected" and "connection" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0030] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0031] Embodiment: This embodiment aims to provide a rainproof canopy for the main construction of the open-cut tunnel during the rainy season. Its main function is to ensure the smooth progress of the main construction of the open-cut tunnel and its construction quality, providing great convenience for the construction personnel.

[0032] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4, including: a portal frame and a top beam, the portal frame is located on a track 2 in the same extension direction as the main body of the open-cut tunnel, the track 2 is arranged on both sides of the main body of the open-cut tunnel so that the main body of the open-cut tunnel is located in the center of the portal frame, and the side of the portal frame includes: a square tube 7 and three columns 8, the column 8 is a round steel tube, the square tube 7 is horizontally placed at the lower end of the three columns 8, and the square tube 7 is welded to the lower end of the three columns 8, and the lower ends of the three columns 8 are connected together through the square tube 7, and the corresponding column 8 is rotatably installed with a motor wheel 9 inside the square tube 7, and the motor of the motor wheel 9 is installed on the square tube The outer side of square tube 7, that is, the side opposite to the main body of tunnel construction, thereby the gantry can automatically move along the direction of track 2 driven by motorized wheel 9, without human push, saving labor; wherein, holes 10 corresponding to motorized wheel 9 are provided on the bottom surface of square tube 7, and the bottom of motorized wheel 9 is slightly protruded from the bottom surface of square tube 7 through hole 10 to contact track 2. Based on this, in actual application, there is a certain gap between square tube 7 and the upper rail surface of track 2 to avoid friction between the bottom surface of square tube 7 and the upper rail surface of track 2 during the movement of the gantry.

[0033] Reference Figure 1 , Figure 2 and Figure 3 A scissor brace 11 is welded between the upper and lower parts of two adjacent columns 8, and a transverse round tube can also be welded between the two columns 8 to further enhance the stability of the door frame. A pair of limit plates 12 are provided on the top of the column 8. The limit plates 12 are used to speed up the installation of the top beam and avoid large deviations during the installation of the top beam. The installation position of the top beam can be better controlled by the limit plates 12; windshields 1 are provided on the outside of both sides of the door frame. The material of the windshield 1 is preferably galvanized color steel tiles, which are corrosion-resistant, high in strength and good in wind resistance. Six transverse steel plates are welded between the windshield 1 and the side of the door frame. Rod 13, the cross bar 13 is a rectangular steel pipe, and six cross bars 13 are equidistantly distributed along the height direction of the column 8. The strength of the galvanized color steel tile can be further enhanced by the cross bars 13; support frames 14 are welded on the upper inside of both sides of the door frame to support the truss 3, and the support frames 14 and the columns 8 can also be fixed with bolts. The support frames 14 are preferably angle steels, and the three columns 8 on the same side can also be connected as a whole through the support frames 14. The truss 3 is stably supported by two support frames 14, ensuring that the electric hoist on the truss 3 can assist the construction personnel in stably lifting the steel bars, thereby ensuring the safety of the construction.

[0034] Reference Figure 1 , Figure 4 and Figure 5, the top beam is located above the truss 3, and there are three top beams, that is, a top beam is provided between every two corresponding columns 8 on the left and right, and the top beam includes: an arch beam 4 and a cross beam 5, the arch beam 4 is located above the cross beam 5, and the arch beam 4 is divided into an upper and lower layer. The end of the upper arch beam 4 is placed on the upper end of the corresponding column 8, and the width of the upper arch beam 4 just matches the width between the two limit plates 12 at the upper end of the column 8; the lower arch beam 4 and the cross beam 5 are both located between the two sides of the door frame, and the upper arch beam 4 and the lower arch beam 4 and the cross beam 5 are connected by reinforcing ribs 15, wherein the upper arch beam 4 is longer than the lower arch beam 4, and the lower The end of the layer arch beam 4 is flush with the end of the cross beam 5. The purpose is that after the upper layer arch beam 4 is placed on the upper end of the corresponding column 8, the top beam can be pre-supported by the left and right columns 8, and the ends of the lower layer arch beam 4 and the cross beam 5 are just in contact with the corresponding column 8, which is convenient for construction personnel to weld the lower layer arch beam 4 and the cross beam 5 to the corresponding column 8. At the same time, the lower layer arch beam 4 and the cross beam 5 can also accurately control the spacing between the left and right columns 8 according to the spacing between the tracks 2 on both sides of the tunnel construction body, ensuring that the gantry and the top beam can fully adapt to the tracks 2 on both sides of the tunnel construction body after assembly, avoiding the phenomenon of gantry instability or even derailment.

[0035] In this embodiment, a plurality of support rods 16 are welded and laid between the rain shield 6 and the upper arch beam 4. The support rods 16 are distributed along the length direction of the arch beam 4. The length direction of the support rods 16 is consistent with the extension direction of the tunnel body. The material of the rain shield 6 and the wind shield is preferably galvanized color steel tiles, and the material of the support rods 16 and the cross bar 13 is rectangular steel pipes.

[0036] In this embodiment, the top beam is made of welded round tubes. It should be noted that the top beam must be prefabricated by welding in advance, so that it is consistent with the above-mentioned working process and the beneficial effects. Scissor struts 11 can also be welded between adjacent top beams to further enhance their stability.

[0037] This embodiment ensures that the main construction of the open-cut tunnel will not be disturbed by strong winds and heavy rains, ensures the construction progress and quality, and provides a good and comfortable working environment for the construction personnel.

[0038] It should be understood that the above description is merely exemplary and the embodiments of the present application do not limit this.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A rainproof canopy for construction of an open-cut tunnel during rainy season, characterized in that: include: A gantry is located on a track in the same direction as the main body of the open-cut tunnel, and the gantry can automatically move along the track. The track is arranged on both sides of the main body of the open-cut tunnel so that the main body of the open-cut tunnel is located in the center of the gantry. Wind screens are arranged on the outside of both sides of the gantry, and a truss is erected between the two sides of the gantry; The top beam is located above the truss crane and includes an arch beam and a cross beam. The arch beam is located above the cross beam and is divided into two layers, the end of the upper arch beam is placed on the top of the door frame, the lower arch beam and the cross beam are both located between the two sides of the door frame, and a rain shield is provided above the upper arch beam.

2. The rainproof canopy for open-cut tunnel main body construction during rainy season according to claim 1 is characterized in that: The side part of the door frame includes: a square tube and a plurality of columns, the square tube is horizontally placed at the lower end of the column, and the lower ends of the plurality of columns are connected together through the square tube; A motorized wheel is provided inside the square tube for rotation corresponding to the column, and a motor of the motorized wheel is provided outside the square tube.

3. The rainproof canopy for open-cut tunnel main body construction during rainy season according to claim 2 is characterized in that: The bottom surface of the square tube is provided with holes corresponding to the motorized wheels; The bottom of the motorized wheel is slightly protruded from the bottom surface of the square tube through the hole so as to contact the track.

4. The rainproof canopy for open-cut tunnel main body construction during rainy season according to claim 2 is characterized in that: A scissor brace is connected between two adjacent columns; A pair of limiting plates are arranged on the top of the upright column.

5. The rainproof canopy for open-cut tunnel main body construction during rainy season according to claim 2 is characterized in that: A plurality of cross bars are arranged between the windshield and the side of the door frame, and the plurality of cross bars are evenly distributed along the height direction of the column.

6. The rainproof canopy for open-cut tunnel main body construction during rainy season according to claim 2 is characterized in that: Support frames are provided inside both sides of the door frame, and the support frames connect the plurality of columns together; The truss crane is supported by the supporting bracket.

7. The rainproof canopy for open-cut tunnel main body construction during rainy season according to claim 2, characterized in that: The arch beams of the upper layer and the arch beams of the lower layer, as well as the arch beams of the lower layer and the cross beams are connected via reinforcing ribs.

8. The rainproof canopy for open-cut tunnel main body construction during rainy season according to claim 7, characterized in that: The arch beam of the upper layer is longer than the arch beam of the lower layer, and the end of the arch beam of the lower layer is flush with the end of the cross beam.

9. The rainproof canopy for open-cut tunnel main body construction during rainy season according to claim 8, characterized in that: The two ends of the arch beam at the lower layer and the two ends of the cross beam are respectively connected to the columns at both sides of the door frame.

10. The rainproof canopy for open-cut tunnel main body construction during rainy season according to claim 1, characterized in that: A plurality of support rods are arranged between the rain shield and the upper arch beam, and the plurality of support rods are distributed along the length direction of the arch beam.

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