Floating underwater suspended tunnel with escape lifting device

Abstract

The present invention discloses a buoy-type underwater suspended tunnel with an escape lifting device, comprising two parallel suspended tunnel tubes and a plurality of connecting main frames, wherein a buoy is fixed to the upper portion of each connecting main frame, and the top of the connecting main frame protrudes from the top of the buoy; an escape lifting device is installed in the connecting main frame, and the escape lifting device comprises two escape elevators, wherein the car entrance positions of the two escape elevators are respectively located in the emergency entrance passages intersecting the connecting main frame and the two suspended tunnel tubes, and the car exit positions of the two escape elevators are respectively located in the emergency exit passages intersecting the connecting main frame and the upper plane of the buoy, and the upper plane of the buoy is the water surface rescue area. The escape lifting device in the present invention is controlled by an independent battery and can work independently when the original power system is damaged, thereby ensuring the stability of the rescue; the power source of the device is the gravity difference, and it can still work normally when the suspended tunnel structure is destroyed.

Description

Technical Field

[0001] The invention relates to the field of marine engineering technology and underwater safe escape, in particular to an escape lifting device for an underwater suspended tunnel. Background Art

[0002] In some vast and deep seas, building traditional bridges and tunnels still presents significant challenges, and cross-sea navigation has become a major obstacle to economic, trade, and cultural exchange. Therefore, floating tunnels have been proposed as a new type of marine transportation structure. Due to their structural characteristics, floating tunnels offer advantages over traditional cross-sea bridges and immersed tube tunnels in crossing long and deep waters, such as flexible site selection, minimal environmental impact, better air pollution control, and unit economic costs that do not change significantly with the length of the strait. Underwater floating tunnels are considered the most competitive structural form for crossing long and deep waters.

[0003] An underwater suspended tunnel is mainly composed of a suspended tunnel tube and buoys. In order to increase the traffic volume inside the suspended tunnel and reduce traffic accidents caused by vehicles traveling back and forth, the underwater suspended tunnel is usually in the form of a double tube. The buoy is installed on the upper part of the suspended tunnel tube to provide the suspended tunnel with upward positive buoyancy. When the tube seal fails, the presence of the buoy can ensure that the entire suspended tunnel does not collapse. While ensuring the structural safety of the suspended tunnel itself, the safety of the people inside the suspended tunnel in an emergency should also be fully guaranteed. When an accident occurs in the suspended tunnel and emergency evacuation is required, the people inside the tunnel need to be quickly and orderly transferred to the water surface to await rescue, but there is currently no mature underwater suspended tunnel escape device.

[0004] The present invention is an escape lifting device for an underwater suspended tunnel. When an accident occurs in the suspended tunnel and personnel need to be evacuated, personnel inside the tunnel can be safely and quickly transferred to a safe area on the water surface through the escape device, fully ensuring the safety of personnel. Summary of the Invention

[0005] The purpose of the present invention is to provide an underwater safety escape device for an underwater floating tunnel, and to provide a buoy-type underwater floating tunnel with an escape lifting device. When an accident occurs in the underwater floating tunnel, people inside the floating tunnel can be transferred to a rescue area on the water surface through a safe passage, fully ensuring the safety of people's lives.

[0006] In order to solve the above technical problems, the technical solution adopted by the buoy-type underwater floating tunnel with an escape lifting device of the present invention is as follows: it includes two parallel floating tunnel tubes and multiple connecting main frames arranged along the axial direction of the floating tunnel tubes, the two parallel floating tunnel tubes are respectively fixed to the two ends of the bottom of each connecting main frame, and a buoy is fixed to the upper part of each connecting main frame, the top of the connecting main frame protrudes from the top of the buoy, and the connecting main frame is a water-tight structure; an escape lifting device is installed in the connecting main frame, and the escape lifting device includes two escape elevators, and the car entrance positions of the two escape elevators are respectively located at the emergency entrance passage that intersects the connecting main frame and the two floating tunnel tubes, and the car exit positions of the two escape elevators are respectively located at the emergency exit passage that intersects the connecting main frame and the upper plane of the buoy, and the upper plane of the buoy is the water surface rescue area.

[0007] Furthermore, the buoy-type underwater floating tunnel with an escape lifting device of the present invention, wherein:

[0008] The car of each escape elevator is driven by a steel cable and a counterweight water tank. Two pulleys are installed on the top of the connecting main frame at a position aligned with the car and the counterweight water tank. The steel cable passes around and is carried on the two pulleys. One end of the steel cable is fixed to the car, and the other end is fixed to the counterweight water tank.

[0009] A water inlet is provided above the counterweight water tank, and the water inlet is connected to the external seawater through a hose; a drain is provided below the counterweight water tank; the initial position of the car is flush with the position of the emergency entrance passage; the initial position of the counterweight water tank is when the end of the steel cable connected to it is at the highest position.

[0010] A shaft for installing the car and counterweight water tank is provided in the connecting main body frame.

[0011] Buffer foam is arranged inside the car.

[0012] The outer surface of the steel cable is coated with an anti-corrosion coating.

[0013] Each escape elevator is driven and controlled by an independent battery.

[0014] The emergency entrance passage and the emergency exit passage are both designed as arched openings.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The escape elevator in the present invention is driven and controlled by an independent battery, and can work independently when the power system of the floating tunnel is damaged, ensuring the stability of the rescue. The lifting power source of the elevator car is gravity difference, which avoids the use of high-voltage electricity and avoids the risk of secondary electric shock when people escape from dangerous tunnels. The cushioning foam is set in the car, which can greatly reduce the secondary damage caused by vibration to the escapers. The escape lifting device in the present invention can ensure that when an accident occurs in the underwater floating tunnel or the floating tunnel structure is destroyed, the people in the tunnel can be transferred to the water surface rescue area through the escape lifting device inside the buoy, fully ensuring the life safety of the people in the tunnel. The water surface rescue area of ​​the device is equipped with life jackets and other life-saving equipment. If the overall structure of the floating tunnel breaks and sinks, the escapers can still float on the water surface with these life-saving equipment and wait for rescue. The present invention has a full-process protection effect on ensuring the safety of people in the floating tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the external structure of the buoy-type underwater floating tunnel of the present invention;

[0018] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of the pontoon-type underwater suspended tunnel shown.

[0019] In the picture:

[0020] 1- Floating Float 2- Floating Tunnel Pipe 3- Connecting Main Frame 4- Escape Elevator

[0021] 5-Counterweight water tank 6-Steel cable 7-Pulley 8-Water inlet

[0022] 9- Drainage outlet 10- Emergency entrance channel 11- Emergency exit channel 12- Water rescue area DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific implementations.

[0024] like Figure 1 and Figure 2As shown, the present invention proposes a buoy-type underwater floating tunnel with an escape lifting device, including two parallel floating tunnel tubes 4 and a plurality of connecting main frames 3 arranged axially along the floating tunnel tubes. The two parallel floating tunnel tubes 4 are respectively fixed to the two ends of the bottom of each connecting main frame 3. A buoy 1 is fixed to the upper part of each connecting main frame 3. The buoy 1 provides buoyancy for the floating tunnel tube 2 and ensures the in-situ stability of the floating tunnel tube 2. The top of the connecting main frame 3 protrudes from the top of the buoy 1, and the connecting main frame 3 is a shell structure with a water-tight outer plate; an escape lifting device is installed in the connecting main frame 3, and the escape lifting device includes two escape elevators 4, and the car entrances of the two escape elevators 4 are respectively located in the emergency entrance channels 10 that are connected to the connecting main frame 4 and the two suspended tunnel bodies 2. The emergency entrance channels 10 are arched openings, which have good sealing properties compared to square openings when the device is not in operation. The car exits of the two escape elevators 4 are respectively located in the emergency exit channels 11 that are connected to the connecting main frame 4 and the upper plane of the buoy 1. The emergency exit channels 11 are arranged on the floating body 1, and the opening position of the emergency exit channels 11 is above the water surface A. It is dry under normal conditions and is also designed as an arched opening.

[0025] like Figure 2 As shown, each escape elevator 4's car is driven by a steel cable 6 and a counterweight water tank 5. A shaft for mounting the car and counterweight water tank 5 is located within the main connecting frame 3. Two pulleys 7 are mounted on the top of the main connecting frame 3, aligned with the car and counterweight water tank 5. The steel cable 6 is routed around and carried by these pulleys 7. These pulleys 7 redirect the force, creating a high frictional contact with the steel cable 6, which reduces the speed of the cable 6 during operation and ensures the safety of the evacuees. One end of the steel cable 6 is fixed to the car, and the other end is fixed to the counterweight water tank 5. The steel cable 6 transmits the weight difference between the two ends. Its outer surface is coated with an anti-corrosion coating to resist external corrosion and ensure long-term structural strength. A water inlet 8 is located above the counterweight water tank 5. This inlet 8 is connected to the external seawater via a hose. In the event of danger, a battery-driven motor pumps seawater through the inlet 8 into the counterweight water tank 5. A drain port 9 is located below the counterweight water tank 5. Once the escapee is evacuated, a battery-driven motor is used to drain the seawater. The initial position of the elevator car, which carries the escapee, is aligned with the emergency entrance 10. Built-in foam cushioning significantly reduces any secondary damage caused by vibrations. Because the counterweight water tank 5 is less dense than the elevator car, it is initially at its highest position, meaning it and the end of the steel cable 6 connected to it are at their highest position. Each escape elevator is independently battery-driven and controlled.

[0026] The upper surface of the buoy 1 defines a surface rescue area 12. This area houses aquatic lifesaving equipment, including one or more of life jackets, lifebuoys, lifeboats / rafts, line-throwing devices, self-igniting floating lights, and life-saving smokescreens. If the floating tunnel's overall structure ruptures and causes it to sink, these lifesaving devices allow evacuees to remain afloat until rescue arrives.

[0027] When an accident occurs in a suspended tunnel and emergency evacuation is required, the operation process of the escape lifting device is as follows:

[0028] The sealed door of the emergency entrance passage 10 is opened, and the escapee enters the car of the escape elevator through the emergency entrance passage 10. The car is equipped with cushioning foam to greatly reduce the secondary damage caused by vibration to the escapee. The battery-driven motor of the counterweight water tank 5 then pumps seawater into the counterweight water tank 5 through the water inlet 8. At this point, the gravity of the counterweight water tank 5 is greater than the gravity of the escape elevator car. The escape elevator car is lifted upward by the action of the steel cable 6. Due to the large friction between the pulley 7 and the steel cable 6, the lifting speed of the escape elevator car will not be too fast to cause harm to the escapee. When the escape elevator car rises to the height of the emergency exit passage 11, the escapee is transferred to the surface rescue area 12 through the emergency exit passage 11. There, they put on life jackets and other water-based life-saving equipment and wait for external rescue. After the first batch of escapees are safely transferred, the battery drives the motor to drain the seawater from the counterweight water tank 5 through the drain port 9. Due to the effect of gravity difference, the escape elevator car descends to the emergency entrance passage 10. At this time, the first evacuation steps are repeated to evacuate subsequent batches of escapees until all people are evacuated.

[0029] The above are merely preferred embodiments of the present invention and do not limit the present invention. Those skilled in the art will appreciate that the present invention is susceptible to various modifications and variations. Any modifications, substitutions, and improvements made within the scope of the present invention are intended to fall within the scope of protection of the present invention.

Claims

1. A buoy-type underwater floating tunnel with an escape lifting device, comprising two parallel floating tunnel tubes and a plurality of connecting main frames arranged axially along the floating tunnel tubes, wherein the two parallel floating tunnel tubes are respectively fixed to the two ends of the bottom of each connecting main frame, and a buoy is fixed to the upper portion of each connecting main frame, characterized in that: The top of the connecting main frame protrudes from the top of the buoy, and the connecting main frame is a water-tight structure; an escape lifting device is installed in the connecting main frame, and the escape lifting device includes two escape elevators, and the car entrances of the two escape elevators are respectively located in the emergency entrance passages that intersect the connecting main frame and the two floating tunnel tubes, and the car exits of the two escape elevators are respectively located in the emergency exit passages that intersect the connecting main frame and the upper plane of the buoy, and the upper plane of the buoy is the water surface rescue area; The car of each escape elevator is driven by a steel cable and a counterweight water tank. Two pulleys are installed at the top of the connecting main frame, aligned with the car and the counterweight water tank. The steel cable is passed around and carried on the two pulleys. One end of the steel cable is fixed to the car, and the other end is fixed to the counterweight water tank. Buffer foam is installed in the car. A water inlet is provided above the counterweight water tank, and the water inlet is connected to the external seawater through a hose; a drain is provided below the counterweight water tank; the initial position of the car is flush with the position of the emergency entrance passage; the initial position of the counterweight water tank is when the end of the steel cable connected to it is at the highest position.

2. The buoy-type underwater floating tunnel with an escape lifting device according to claim 1 is characterized in that: A shaft for installing the car and counterweight water tank is provided in the connecting main body frame.

3. The buoy-type underwater floating tunnel with an escape lifting device according to claim 1 is characterized in that: The outer surface of the steel cable is coated with an anti-corrosion coating.

4. The buoy-type underwater floating tunnel with an escape lifting device according to claim 1, characterized in that: Each escape elevator is driven and controlled by an independent battery.

5. The buoy-type underwater floating tunnel with an escape lifting device according to claim 1, characterized in that: The emergency entrance passage and the emergency exit passage are both designed as arched openings.

6. The buoy-type underwater floating tunnel with an escape lifting device according to claim 1, characterized in that: The water rescue area is provided with water rescue equipment.

7. The buoy-type underwater floating tunnel with an escape lifting device according to claim 6, characterized in that: Water life-saving equipment includes one or more of life jackets, lifebuoys, lifeboats / rafts, rope-throwing equipment, self-igniting buoyant lights and life-saving smoke screen launchers.

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