JP3062333B2 - Underground transport system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport system in which a vehicle can be transported through a tunnel under the ground or on the ground, and an airplane can be transported in the tunnel in order to transport the vehicle between distant cities safely and at a high speed with small energy. About the system.

[0002]

2. Description of the Related Art As conventional transportation means, there are automobiles running on roads and railroad vehicles running on tracks. Recently, magnetically propelled trains which float by magnetic force have been made. In automobiles and railway vehicles, the air friction resistance between the lower surface of the vehicle and the running surface is large, and in the magnetically propelled train, the air friction resistance between the surrounding wall surface and the lower surface of the track is large, so a large amount of energy is required when traveling at high speeds. Also have limitations. In addition, airplanes are used as a high-speed means of transportation, in which case, an airfield with a long runway is provided at a distance from the city to take off or land, and the connection between each city and the airfield is established. It is transported by car or train.

[0003]

As described in the prior art, an airplane is used as a high-speed transportation means. In such a case, the operation of the airplane is affected by the weather, making it impossible to operate the aircraft in strong winds or snowfall. Become. Also, due to the high flight altitude, the damage in case of a crash is large. In addition, a large airfield was required for takeoff and landing, and the noise was too loud to operate 24 hours a day. The present invention has solved the above problem by flying an airplane underground or in a tunnel on the ground. That is, 50cm-1m in the tunnel
Flying an airplane ascended to eliminate the damage caused by the crash of the airplane, 24 hours a day regardless of the weather
The purpose is to enable time operation. In addition, the aircraft should be lighter in weight due to the small load of crosswinds and gusts received by the aircraft, making the operation energy of the aircraft more economical.Furthermore, high-speed transportation is possible without an airfield, and noise problems will not occur. With the goal.

[0004]

SUMMARY OF THE INVENTION The present invention is a transportation system which achieves the above-mentioned object, and which communicates between distant cities underground or through a large-diameter tunnel and partitions the inside of the tunnel up and down. Forming the upper and lower flight paths respectively, flying the airplane in the opposite direction to the upper and lower flight paths, and allowing the plane to move to the upper and lower flight paths at both ends and in the middle of the tunnel, The direction can be changed, so that the plane can fly slightly up and down the upper and lower flight paths in the tunnel so that it can fly back and forth. The plane is up,
In order not to hit the inner wall surface forming the lower flight path, a position sensor is provided on the airplane flying above and below the tunnel in the tunnel, and the control device controls the flight state of the airplane based on the signal. I did it. Along the tunnel,
It is also possible to provide an energy transport line, a vacuum transport line, and the like.

[0005]

In the transportation system according to the present invention, the plane is provided in the tunnel and the airplane is flown in the opposite direction to the lower flight path, so that the transportation system can be transported at a high speed through the tunnel communicating between the cities. Also, the airplane is 50
Since it only floats about 1 cm to 1 m, it does not fall and cause great damage, and the load due to crosswinds and gusts is small, so the weight of the aircraft body can be reduced, and the energy required for operation is reduced. It is economical. Furthermore, since the aircraft flies through the tunnel, it is not affected by the weather and there is no noise problem, so that it is possible to operate 24 hours a day.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A transportation system for an underground airplane according to the present invention will be described with reference to FIGS. The distant cities are connected by a steel tube tube or a concrete tunnel 1 that passes underground, for example, 50 m or less underground. In this case, the tunnel 1 passes over the ground in mountainous areas and near the coast due to tunnel construction. The tunnel 1 is constructed to have a diameter of, for example, 50 to 56 m, the outer peripheral wall is formed to have a thickness of about 5 m, and a partition 2 for dividing the inside up and down is provided. The upper and lower sides of the partition 2 are formed on upper and lower flight paths 3a and 3b, respectively, and the airplane 12 flies in opposite directions along the flight paths. In addition, a connection path A shown in FIG. 3 is provided so that the airplane 12 can move to the upper and lower flight paths 3a and 3b at both ends of the tunnel 1 and at an appropriate place on the way, and a storage space B for the airplane 12 is provided. The flight direction of the airplane 12 is changed at the place so that the airplane can reciprocate.

Below the floor of the lower flight path 3b in the tunnel 1, there is provided a passage 4 for cars and trains, or a track 5 for the new city transportation system, which can be transported by means other than transportation by airplane. Further, on both sides of the lower flight path 3b, an energy transport line 6 such as a power cable, a space 7 for air supply and exhaust, a safety passage 8, an information line 9 such as an optical fiber cable, and the like are provided. An energy transport line 11 for oil, liquefied natural gas, and the like is provided to enable each transport means in the tunnel to operate without any trouble, and also serves as an energy storage means.

The airplane 12 has, for example, a width of 25 m and a total length of 60.
m, the total height is 9 m, and the width (the interval between both main wing tips) and the height are smaller than that of a normal airplane. A type in which a propeller 17 is driven by a turboprop engine 16 is used. The total weight of the plane is 90t, the empty weight is 45t, the passengers are 400, the fuel is 5t, and the cruising speed is 600k.
m / h, and the flying speed is designed to be about 300 km / h. When flying on the upper and lower flight paths, the aircraft rises by about 1 m. At low speed, the wheels 13 at the lower part of the aircraft slide on the floor surfaces of the upper and lower flight paths 3a and 3b.

A plurality of position sensors 1 are provided outside the airplane 12.
4 is provided, and a control device 15 provided in the airplane controls a flight state based on a sensor signal therefrom,
The airplane 12 is prevented from hitting the inner wall surfaces of the upper and lower flight paths 3a and 3b. Similarly, the control device 15 controls the operating direction of the airplane 12 based on the sensor signal.
It is designed to fly along the lower flight paths 3a, 3b. All driving operations of these airplanes 12 are performed by the control device 1
5 is unmanned. In addition, since the airplane 12 flies in the tunnel, there is no load due to a cross wind or a gust, the airframe can be configured to be lightweight, and the energy consumption for the flight can be reduced to about 1/4 of that of a normal jumbo airplane. When the airplane 12 flies in the tunnel 1, there is no need to pressurize the cabin because the pressure difference between the atmosphere and the cabin is small. When the airplane 12 flies along the upper and lower flight paths 3a and 3b in the tunnel, for example, the airplane is moved at a speed of 600 km / h at a pitch of 5 minutes.
If operated for 4 hours, it will take 50 minutes between Tokyo and Osaka and about 3 hours between Sapporo and Fukuoka.

[0010]

According to the underground airplane transportation system of the present invention, the cities are communicated with each other by tunnels, and the airplanes can be reciprocated along the lower flight path formed in the tunnel. It can be operated 24 hours a day without any delay, and can be safely and rapidly transported to each city in large quantities. In addition, since the airplane flies in the tunnel, there is no external pressure such as crosswinds or gusts, and the flight altitude is low, so safety is high. In addition, flight in the tunnel is hydrodynamically
Since air frictional resistance can be minimized as compared with a train or the like, high-speed operation is possible and energy efficiency is good. Also, since the airplane flies through the tunnel, there is no noise problem in the surrounding area, the environment can be improved by greatly reducing exhaust gas, and there is no bird damage. In addition, since there is no need to provide a runway, there is no need for airport land, noise around the airport,
The vibration problem is eliminated, and the environment can be improved by greatly reducing exhaust gas. In addition, since underground airplanes can be transported to urban areas, travel time is greatly reduced, which helps revitalize rural areas and effectively use land. Also, a logistics and energy transport line can be provided in the tunnel, and the energy transport line can also store energy.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a tunnel according to the present invention.

FIG. 2 is a longitudinal sectional view of a tunnel according to the present invention.

FIG. 3 is a schematic view of a communication path that allows access to upper and lower flight paths in a tunnel.

FIG. 4 is a plan view, a side view, and a front view of an airplane used in the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tunnel 3a Upper flight path 3b Lower flight path 10 Vacuum transportation line 12 Airplane 14 Position sensor A Connection path

Continued on the front page (72) Inventor Younosuke Matsumoto 4-6-15 Sendagaya, Shibuya-ku, Tokyo, Japan Inside Fujita Co., Ltd. (56) References JP-A-3-166499 (JP, A) JP-A-58-85699 (JP, U) US Patent 4,512,258 (US, A) US Patent 4,148,260 (US, A) US Patent 4,23500 (US, A) ) “Underground airplane idea” (Aerospace Research Institute Special Materials, 1992, pp. 79-81) (58) Fields investigated (Int. Cl. ⁷ , DB name) B64F 1/00 E21D 9/14

Claims (2)

(57) [Claims] 1. A large-diameter tunnel connects underground and on the ground between distant cities, partitions the tunnel up and down, forms upper and lower flight paths, and forms upper and lower flight paths, respectively. Flying the airplane in the opposite direction, allowing the airplane to move up and down the flight path at both ends and in the middle of the tunnel so that the direction of the airplane can be changed,
An underground airplane transportation system characterized in that an airplane can slightly fly up and down the upper and lower flight paths in a tunnel so that it can fly back and forth. 2. Along the tunnel, transport system according to the ground plane of claim 1 Symbol placement provided energy transfer line or a vacuum transfer line.