A single-side wing plate mechanical diversion open tunnel and control method for seasonally frozen areas

Abstract

The present invention discloses a single-sided wing plate type mechanical diversion open tunnel in a seasonally frozen area and a control method. The present invention can achieve diversion of cold / hot air inside and outside the tunnel by arranging a plurality of vertical wing plates on the side of the open tunnel structure frame, effectively blocking cold wind from entering the tunnel in winter, and guiding hot air to enter the tunnel in summer, thereby effectively stabilizing the temperature field of the tunnel entrance section in the seasonally frozen area by reducing cold input and increasing heat input. The present invention adopts a mechanical structure, and the wing plate can rotate in accordance with the wind direction under the action of wind force, is easy to operate, has no operating energy consumption, and has extremely low maintenance costs, and has broad application prospects.

Description

Technical Field

[0001] The invention belongs to the field of tunnel frost damage prevention and control, and specifically relates to a single-sided wing plate type mechanical diversion open tunnel in a seasonally frozen area tunnel and a control method. Background Art

[0002] Seasonal frost damage in tunnels is the main challenge faced by transportation tunnels in seasonally frozen areas. The number of tunnels in seasonally frozen areas increases year by year, and frost damage problems emerge in an endless stream, causing immeasurable economic losses.

[0003] The heat exchange between the tunnel structure near the entrance section and the surrounding rock medium near the tunnel and the air medium is the reason for changing the temperature field of the entrance section and inducing various frost damage problems. The frost damage prevention and control measures for tunnels in frozen areas in the current season can be divided into passive prevention and control and active prevention and control. Passive prevention and control measures are to lay an insulation layer on the outside of the tunnel or between the lining and the surrounding rock to isolate the heat exchange between the external air and the structure or surrounding rock as much as possible, so as to achieve the purpose of stabilizing the temperature field. Active prevention and control measures are based on the idea of ​​cold / heat accumulation. By setting up an insulating open hole and an air curtain at the entrance, the external cold air is isolated from entering the tunnel as much as possible, so as to achieve the insulation of the tunnel entrance section.

[0004] Traditional insulated open-cut tunnels are unable to achieve air diversion and perform poorly in isolating external cold air from entering the tunnel, resulting in limited insulation effects and insufficient application potential. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a single-sided wing plate type mechanical diversion open hole and control method for a tunnel in a seasonally frozen area, which can achieve the diversion effect of cold / hot air through a mechanical structure and effectively stabilize the temperature field of the tunnel entrance section in the seasonally frozen area.

[0006] In order to achieve the above-mentioned purpose, a single-sided wing plate type mechanical diversion open hole in a seasonally frozen zone tunnel is disclosed, comprising an open hole structural frame, a top light-transmitting plate is arranged on the top of the open hole structural frame, a plurality of vertical wing plates are arranged on the side of the open hole structural frame, the vertical wing plates include wing plate shaft rods, the wing plate shaft rods can rotate on the side of the open hole structural frame, a single-sided flange plate is arranged on the wing plate shaft rod, and the single-sided flange plate is made of transparent material.

[0007] Two openable and closable bolt plates are arranged on the wing plate rotating shaft, one is arranged on the outer side of the wing plate rotating shaft, and the other is arranged on the inner side of the wing plate rotating shaft.

[0008] A magnet capable of adsorbing the openable and closable bolt plate is arranged on the wing plate rotating shaft, and a locking bolt is arranged below the openable and closable bolt plate on the wing plate rotating shaft.

[0009] Positioning bearings are arranged on the upper and lower parts of the wing plate rotating shaft, and a bowl-type supporting member is arranged on the bottom of the wing plate rotating shaft.

[0010] A limited rotation linkage device is arranged on the wing plate rotating shaft, and the limited rotation linkage device comprises a rotating rod arranged on the wing plate rotating shaft, a screw rod is arranged at the end of the rotating rod, and the screw rods on the rotating rods of adjacent vertical wing plates are connected through a connecting rod.

[0011] The open hole structure frame includes several single-frame frames, each of which includes a frame beam. Frame columns are longitudinally arranged at both ends of the frame beam. The frame beams and frame columns of adjacent single-frame frames are connected by corresponding longitudinal beams.

[0012] A method for regulating a single-sided wing plate type mechanical diversion open tunnel in a seasonally frozen area tunnel, characterized in that it comprises the following steps:

[0013] In winter, the external cold wind blows the single-sided flange plate, and the rotation of the vertical wing plate on the windward side is blocked by the retractable bolt plate, which keeps it closed to block the cold wind; at the same time, the cold wind drives the vertical wing plate on the leeward side to rotate toward the outside of the open hole to guide the cold wind out;

[0014] In summer, the external hot wind blows the single-sided flange plate, and the vertical wing plate on the windward side rotates toward the inside of the open hole, directing the hot air to the open hole; at the same time, the rotation of the vertical wing plate on the leeward side is blocked by the openable bolt plate, keeping it closed to prevent the hot air from overflowing.

[0015] In winter, the inner openable bolt plate is opened and the outer openable bolt plate is closed. The external cold wind blows the single-sided flange plate, and the inner openable bolt plate blocks the rotation of the adjacent single-sided flange plate, so that the vertical wing plate remains in a closed state to block the cold wind.

[0016] In summer, close the inner openable bolt plate and open the outer openable bolt plate. When hot air in the hole overflows, the outer openable bolt plate blocks the rotation of the adjacent single-sided flange plate, so that the vertical wing plate remains in a closed state, preventing the hot air from overflowing.

[0017] Compared with the prior art, the present invention can achieve the diversion of cold / hot air inside and outside the tunnel by setting a number of vertical wing plates on the side of the open tunnel structure frame, effectively blocking cold wind from entering the tunnel in winter, and guiding hot air into the tunnel in summer, thereby effectively stabilizing the temperature field of the tunnel entrance section in the seasonal freezing zone by reducing cold input and increasing heat input. The present invention adopts a mechanical structure, and the wing plates can rotate in accordance with the wind direction under the action of wind force. It is easy to operate, has no operating energy consumption, and has extremely low maintenance costs, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a schematic diagram of the open hole structure framework in the present invention;

[0020] Figure 3It is a schematic diagram of a single frame in the present invention;

[0021] Figure 4 It is a schematic diagram of a single-sided wing plate in the present invention;

[0022] Figure 5 Schematic diagram of the rotation of the vertical wing plate in the present invention; (a) is the initial position, (b) is the rotation position;

[0023] Figure 6 Schematic diagram of the rotation-limiting linkage device in the present invention; (a) is the rotating rod, and (b) is the linkage rod;

[0024] Figure 7 It is a schematic diagram of the openable and closable bolt plate in the present invention;

[0025] Figure 8 Schematic diagram of diversion of the present invention; (a) is winter, (b) is summer.

[0026] Among them, 1. open hole structure frame, 2. single-frame frame, 3. frame column, 4. frame crossbeam, 5. longitudinal beam, 6. top light-transmitting plate, 7. vertical wing plate, 8. single-sided flange plate, 9. wing plate shaft rod, 10. positioning bearing, 11. rotation-limiting linkage device, 12. rotating rod, 13. openable and closable bolt plate, 14. magnet, 15. locking bolt, 16. bowl-type supporting member, 17. screw, 18. linkage rod. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 A single-side wing plate type mechanical diversion open tunnel in a seasonally frozen area tunnel includes an open tunnel structure frame 1, which includes a plurality of single-frame frames 2, each of which includes a frame beam 4, and frame columns 3 are longitudinally arranged at both ends of the frame beam 4. The frame beams 4 and frame columns 3 of adjacent single-frame frames 2 are connected by corresponding longitudinal beams 5. A top light-transmitting plate 6 is arranged on the top of the open tunnel structure frame 1, and a plurality of vertical wing plates 7 are arranged on the side of the open tunnel structure frame 1. The vertical wing plates 7 include a wing plate shaft rod 9, which can rotate on the side of the open tunnel structure frame 1, and a single-side flange plate 8 is arranged on the wing plate shaft rod 9, and the single-side flange plate 8 is made of transparent material.

[0029] See also Figure 4 , Figure 5 and Figure 7Two openable and closable bolt plates 13 are arranged on the wing plate rotating shaft 9, one is arranged on the outside of the wing plate rotating shaft 9, and the other is arranged on the inside of the wing plate rotating shaft 9. A magnet 14 capable of adsorbing the openable and closable bolt plates 13 is arranged on the wing plate rotating shaft 9, and a locking bolt 15 is arranged below the openable and closable bolt plates 13 on the wing plate rotating shaft 9. Positioning bearings 10 are arranged on the upper and lower parts of the wing plate rotating shaft 9, and a bowl-shaped supporting member 16 is arranged at the bottom of the wing plate rotating shaft 9.

[0030] See also Figure 6 , a limited rotation linkage device 11 is provided on the wing plate rotating shaft 9, and the limited rotation linkage device 11 includes a rotating rod 12 provided on the wing plate rotating shaft 9, and a screw 17 is provided at the end of the rotating rod 12, and the screws on the rotating rods 12 of adjacent vertical wing plates 7 are connected by a connecting rod 18. The limited rotation linkage device 11 can realize the rotation linkage of the vertical wing plates 7, and can limit the rotation angle of the vertical wing plates 7 within the range of -90° to 90° to avoid reversal;

[0031] The implementation method of the present invention comprises the following steps:

[0032] Step 1: Install an open hole frame structure 1 at the tunnel entrance section, wherein a single frame structure 2 is composed of a frame column 3 and a frame beam 4, and the frame structure 1 is assembled into a spatial force system through a longitudinal beam 5, and a longitudinal beam is arranged at the bottom of the frame column and 10 cm away from the bottom, and a longitudinal beam is arranged at the top of the frame column and 10 cm away from the top;

[0033] Step 2: Install a PVC light-transmitting top plate 6 on the top of the frame structure;

[0034] Step 3: The vertical wing plate 7 is composed of a single-sided wing plate 8 and a wing plate shaft rod 9. The single-sided flange plate 8 made of transparent PVC material is connected to the wing plate shaft rod 9 by screws;

[0035] Step 4: Install the positioning bearings 10 on the upper and lower ends of the wing plate shaft rod 9, respectively, and weld the rotating rod 12 of the rotation-limiting linkage device 11 at a position 10 cm below the upper positioning bearing. The lower end of the wing plate shaft rod 9 is a round head;

[0036] Step 5: Install the openable and closable bolt plates 13 on the inner and outer sides of the lower part of the wing plate shaft 9 respectively, and fix the openable and closable bolt plates 13 when closed by the magnets 14. When in use, the openable and closable bolt plates 13 are kept horizontal by the protruding locking points 15;

[0037] Step 6: Install the bowl-shaped support members 16 on the bottom longitudinal beam 5 of the frame column 3 at a certain interval, and the interval is 0.5 cm larger than the width of the vertical wing plate 8;

[0038] Step 7: Place the lower end of the wing plate shaft rod 9 into the bowl-shaped support member 16, and make point contact with the support member 16 through the round head at the end, and weld the upper and lower end bearings to the longitudinal beam 5 at the corresponding heights respectively;

[0039] Step 8: The rotating rod 12 and the linkage rod 18 are movably connected by the screw rod 17, and the two frame columns 3 form an independent linkage unit;

[0040] A method for regulating a single-sided wing plate type mechanical diversion open tunnel in a seasonally frozen area tunnel, characterized in that it comprises the following steps:

[0041] In winter, the inner retractable bolt plate 13 is opened and the outer retractable bolt plate 13 is closed. The external cold wind blows the single-sided flange plate 8, and the inner retractable bolt plate 13 blocks the adjacent single-sided flange plate 8 from rotating, so that the vertical wing plate 7 is closed to block the cold wind; at the same time, the cold wind in the cave drives the leeward side of the vertical wing plate 7 to rotate toward the outside of the open cave, so as to guide the cold wind in the cave out;

[0042] In summer, the inner openable and closable bolt plate 13 is closed and the outer openable and closable bolt plate 13 is opened. The external hot wind blows the single-sided flange plate 8, and the windward side of the vertical wing plate 7 rotates toward the inside of the open hole to guide the hot air to the open hole. When the hot air in the hole overflows, the outer openable and closable bolt plate 13 blocks the rotation of the adjacent single-sided flange plate 8, so that the vertical wing plate 7 remains in a closed state to prevent the hot air from overflowing.

Claims

1. A method for regulating a single-sided wing plate mechanical diversion open tunnel in a seasonally frozen area tunnel, characterized in that: The diversion open hole comprises an open hole structural frame (1), a top light-transmitting plate (6) is arranged on the top of the open hole structural frame (1), a plurality of vertical wing plates (7) are arranged on the side of the open hole structural frame (1), the vertical wing plates (7) comprise wing plate shaft rods (9), the wing plate shaft rods (9) are capable of rotating on the side of the open hole structural frame (1), a single-sided flange plate (8) is arranged on the wing plate shaft rods (9), and the single-sided flange plate (8) is made of a transparent material; Two openable and closable bolt plates (13) are arranged on the wing plate shaft rod (9), one is arranged on the outside of the wing plate shaft rod (9), and the other is arranged on the inside of the wing plate shaft rod (9); The control method comprises the following steps: In winter, when the external cold wind blows the single-sided flange plate (8), the rotation of the vertical wing plate (7) on the windward side is blocked by the closable bolt plate (13), and the vertical wing plate (7) on the windward side is kept in a closed state to block the cold wind; at the same time, the cold wind drives the vertical wing plate (7) on the leeward side to rotate toward the outside of the open hole, and the cold wind is diverted out; In summer, the external hot wind blows the single-sided flange plate (8), and the vertical wing plate (7) on the windward side rotates toward the inside of the open hole, thereby directing the hot wind to the open hole; at the same time, the rotation of the vertical wing plate (7) on the leeward side is blocked by the openable bolt plate (13), which keeps the closed state, thereby preventing the hot wind from overflowing.

2. The control method of a single-sided wing plate type mechanical diversion open hole in a seasonally frozen area tunnel according to claim 1 is characterized in that: A magnet (14) capable of adsorbing the openable and closable bolt plate (13) is arranged on the wing plate shaft rod (9), and a locking bolt (15) is arranged below the openable and closable bolt plate (13) on the wing plate shaft rod (9).

3. The control method of a single-sided wing plate type mechanical diversion open hole in a seasonally frozen area tunnel according to claim 1 is characterized in that: Positioning bearings (10) are provided at the upper and lower parts of the wing plate shaft rod (9), and a bowl-shaped supporting member (16) is provided at the bottom of the wing plate shaft rod (9).

4. The control method of a single-sided wing plate type mechanical diversion open hole in a seasonally frozen area tunnel according to claim 1 is characterized in that: A limited rotation linkage device (11) is provided on the wing plate shaft rod (9), and the limited rotation linkage device (11) comprises a rotating rod (12) provided on the wing plate shaft rod (9), a screw rod (17) being provided at the end of the rotating rod (12), and the screw rods on the rotating rods (12) of adjacent vertical wing plates (7) are connected via a linkage rod (18).

5. The control method of a single-sided wing plate type mechanical diversion open tunnel in a seasonally frozen area tunnel according to claim 1 is characterized in that: The open-type structural frame (1) comprises a plurality of single-frame frames (2), each of the single-frame frames (2) comprising a frame crossbeam (4), frame columns (3) being longitudinally arranged at both ends of the frame crossbeam (4), and the frame crossbeams (4) and frame columns (3) of adjacent single-frame frames (2) are connected via corresponding longitudinal beams (5).

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