JP2012041728A - Tunnel for crossing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that a conventional tunnel for crossing underground is not used by anyone even after it is installed, and further the tunnel for crossing cannot be used by a handicapped person using a wheelchair even when the person wants to use it since it is as deep as 3 meters, by making the tunnel for crossing composed of a three-centimeter thick iron plate at a position 50 centimeters deeper than the ground and making a road at a position 130 centimeters higher than the ground for a compromise between both sides.SOLUTION: A road (1) is dug in to a depth of 50 centimeters, a sidewalk tunnel (2) is made to cross the road, and the road (1) is banked with banking (1b) to run over the sidewalk tunnel (2).

Description

  The present invention relates to a crossing tunnel capable of making a three-dimensional intersection by giving the height of a sidewalk and a road to each other.

Conventionally, at a normal intersection, the pedestrian crossing to cross the road is provided on the same plane as the roadway across the roadway, so there is a risk that pedestrians will encounter a traffic accident while crossing, Crossing pedestrians must be exposed to dangers and threats from cars throughout their crossings.
These problems can be solved by three-dimensionally crossing the pedestrian crossing with the roadway. For this reason, the conventional typical method is to provide a pedestrian bridge above the intersection so that pedestrians can cross the pedestrian bridge. In order to allow pedestrians to climb up and down the pedestrian bridge, stairs are commonly used on the pedestrian bridge. Therefore, to allow large vehicles to pass, under the pedestrian bridge, a legally required height of 4.5 meters is required, so climbing up and down the stairs must be done at the same height.

  Such a level difference is a barrier that is difficult for people in wheelchairs or for those who push a baby carriage. Therefore, these people are not able to enjoy the use of the pedestrian bridge at all, and the freedom of action is restricted in that they cannot cross the other side of the road. Even for elderly people and people with walking disabilities, it is quite difficult to go up and down the stairs of the footbridge. Even for healthy people, it is difficult to go up and down long stairs, and those who ride bicycles have to get off and push bicycles, and going up and down stairs is quite troublesome. Therefore, there is a tendency to try to cross the road forcibly, which contributes to traffic accidents. In addition, the underground tunnel can reduce the number of steps of 2.5 meters compared to the pedestrian bridge, but the underground is closed and there is a possibility of crime.

  Therefore, the intersection with a barrier-free pedestrian tunnel named JP 2008-121403 can be easily crossed by a person on a wheelchair or a person pushing a baby carriage, An intersection where you can safely cross the road without encountering is to lift the road up about 2.5 meters and make the sidewalk barrier-free.

JP2008-121403

  However, the intersection with a barrier-free pedestrian tunnel named JP 2008-121403 has a pedestrian crossing bridge height of 2 meters compared to 4.5 meters for the pedestrian crossing bridge, and the pedestrian crossing is given priority. However, although the road was raised by filling up 2.5 meters, the height of 2.5 meters could not be seen, hindered driving and could cause a traffic accident. Also, the construction cost was high.

  In addition, the traditional crossing tunnel used stairs, so it could not only be used by disabled people on bicycles and wheelchairs, and crime could occur. Not used. Also, the pedestrian bridge is not only a detour, but it could become an obstacle to the road in the event of an earthquake.

  Therefore, the crossing tunnel of the present invention does not give priority only to one side, and can satisfy both a pedestrian who has a disability with a slight compromise between a driver and a pedestrian and a driver who runs on a road, and is inexpensive. The construction period is short. In that method, the height of the sidewalk tunnel (2) is 180 centimeters, and 50 centimeters are dug down across the road (1). There is a sidewalk tunnel (2) made of iron, and the embankment (1b) is filled on both sides of the sidewalk tunnel (2), and the road (1) is 130 cm high. This is a crosswalk tunnel for pedestrians that has become barrier free. In addition, the automobile tunnel (3b) also provides a crossing tunnel that intersects three-dimensionally with a half of the conventional gradient by giving up each other.

  In order to achieve the above object, the crossing tunnel of the present invention is a newly created road (2a) in which the sidewalk (2a) in the sidewalk tunnel (2) is set 20 to 160 centimeters lower than the level (1a). 1) achieved the purpose by filling the bank (1b) so as to pass over the sidewalk tunnel (2).

  Claim 2 is that the road (1) in the automobile tunnel (3b) is installed 50 to 400 centimeters lower than the level (1a), and the upper road (1) intersecting three-dimensionally is the automobile tunnel. The object was achieved by filling the bank (1b) so as to pass over (3b).

The crossing tunnel of the present invention has the following effects.
(B) Since the tunnel for crossing can be seen from the inside, it is difficult for crimes to occur.
(B) Since the pedestrian is only 50 cm down, the slope is gentle.
(C) The driver is only 130 centimeters up, so he can see well.
(D) Since it is made of metal, installation is easy and the construction period is short.
(E) Because it is made of metal, it is not as thick as concrete.
(F) In the automobile tunnel according to claim 2, the slope becomes gentle by giving up.
(G) If it is a three-dimensional intersection that gives priority to pedestrians, the sidewalks are steps of 1 meter from each other.

The figure is a perspective view of a crosswalk tunnel for crossing. The figure is a front view of a crosswalk tunnel for crossing. The figure is a perspective view of a crosswalk tunnel for crossing an intersection. The figure is a perspective view of a three-dimensional intersection. The figure is a front view of a three-dimensional intersection. The figure is a front view of a pedestrian priority crossing.

  The crossing tunnel of the present invention is made of iron plate, so it can be made thinner than the concrete made, and it is made of blocks, so that installation work on the site can be done quickly, and the sidewalk (2a) and automobile (3) pass. The roads (1) to be transferred to each other solve each other's problems. The sidewalk tunnel (2) is set by excavating 1/3 of the height of the sidewalk tunnel (2) from the level (1a) with the height of the original road (1) as the level (1a). .

  The crossing tunnel is assembled at the factory, and because the ceiling (2b) and side panels are applied with force, use a thick object, and it is possible to use a thin object at the lower sidewalk (2a). . In addition, if there is only one thing that can be carried by one and cannot be carried on the sidewalk tunnel (2), or if it is installed in a place where the road (1) cannot be closed, it will be carried on site. At that time, make the site one-way street, cut the pavement on one road (1), excavate the ground 60 cm, install the sidewalk tunnel (2), fill the earth (1b) and drive the car (3) To be able to pass.

  Next, cut the pavement of the remaining half of the road (1), excavate the ground to one third of the height of the sidewalk tunnel (2), install the sidewalk tunnel (2), Assemble (2) by welding. Then, the embankment (1b) is filled so that it can pass through the automobile (3) and then paved.

  And the crossing tunnel is in a state where two-thirds of the road (1) has popped out, so the bank (1b) is filled in order to cross it, and the car (3) is safely inclined. The car (3) passes on the slope so that it can be seen. Therefore, a thin wall like metal and maintaining strength is good for a crossing tunnel.

  Also, the difference between the pedestrian tunnel (2) and the pedestrian tunnel (2) is 2 degrees with a gentle slope, and it takes about 10 meters to reach the level (1a), and the sidewalk (2a) is 15 cm higher than the level (1a). When high, the slope distance is extended by 2.5 meters, resulting in a slope of 12.5 meters.

  Claim 2 may be a three-dimensional intersection for an automobile. When the road (1) connected to the north and south and the road (1) connected to the east and west intersect three-dimensionally, if the road (1) connected to the north and south is on the lower side, the height of the automobile tunnel (3b) connected to the north and south is 5 A tunnel is set up by digging 2.5 meters, half of 5 meters.

  The east-west road (1) fills with a 2.5 meter embankment (1b) and rises above the automobile tunnel (3b) and intersects. And the sidewalk (2a) of the road (1) connected to the north and south maintains the level (1a) even if the road (1) is lowered. On the other hand, the sidewalk (2a) of the east-west road (1) passes 2.5 meters higher. On the left side of the sidewalk (2a), the sidewalk (2a) of the north-south road (1) in Fig. 4 is 30 degrees from the car tunnel (3b) with a gradient of 2 degrees, and the sidewalk (1) of the east-west road (1) Since it joins 2a), it will go up 1.25 meters, the left turn will go straight, and if it is a right turn, it will go U-town from there and proceed to the three-dimensional intersection.

The transverse tunnel of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a crossing tunnel. In the figure, a groove with a depth of 50 cm and a width of 180 cm is carved on a one-lane road (1), and a sidewalk tunnel (2) main body is installed so as to cross the road (1).

  The sidewalk tunnel (2) has a height of 180 cm, a width of 180 cm, and a thickness of 3 cm. The sidewalk tunnel (2) is carried and attached. And since the embankment (1b) of the road (1) exceeds 130 centimeters from the level (1a), the embankment (1b) is about 30 meters at a gradient of 2 degrees. The level (1a) here is the height of the road (1) before installing the crossing tunnel on the road (1) or the height of the road (1) where this crossing tunnel was not installed. Say.

  On the other hand, since the sidewalk tunnel (2) is 50 centimeters lower than the level (1a), the sidewalk (2a) will fall about 10 meters with a gradient of 2 degrees. However, it is impossible to take an inclination of about 10 meters as it is, so the side exiting from the sidewalk tunnel (2) is bent at a right angle to make it approximately T-shaped, and the sidewalk (2a) at the end of the road (1) Put it in parallel. A slope of 2 degrees is a sufficiently safe slope for a wheelchair.

  In the place where the sidewalk (2a) is more than 2 meters wide, the slope for using the sidewalk tunnel (2) was attached in a T shape as shown in the figure, but in a place where there is not much room on the sidewalk (2a) Even if the sidewalk (2a) is lowered, there is no problem because the slope is gentle. However, at that time, instead of lowering the sidewalk (2a) by 50 centimeters, if you give priority to the passersby considering the passersby (4), if you lower the level (1a) by 20 centimeters, the sidewalk (2a) The gradient of is almost gone. Then, the level difference of the road (1) through which the automobile (3) passes is 20 centimeters lower than the level (1a), but the slope is not so much.

  FIG. 2 is a front view of the crossing tunnel, and the sidewalk tunnel (2) has a substantially round shape. The level (1a) in the figure is the height of the road (1) before the installation of the crossing tunnel, and there is a level (1a) 50 cm from the sidewalk (2a) in the sidewalk tunnel (2). The level (1a) to the ceiling (2b) is 130 cm.

  First, in order to carve a groove with a width of 180 cm and a depth of 50 cm on the road (1), the pavement is cut into two parts with a cutter to a width of 180 cm or more, and then the depth is 50 cm. Carve a groove. Carry the block of the sidewalk tunnel (2) there and install it there. The block construction method is a hull construction method in which the hull structure is divided into blocks of a certain size, built in the factory or on the ground, and then mounted on the stern. The block can be rotated. The efficiency of welding construction and the simultaneous multi-point construction are possible, so that the construction period is significantly shortened compared to the conventional construction method.

  The sidewalk tunnel (2) has a weight of 10 tons, with the width of the road (1) being 10 meters. The ceiling (2b) is provided with reinforcement (2c), and a flat bar having a width of 50 cm is attached to both corners of the ceiling (2b) through the pressure of the truck loaded with heavy objects from above. Endure. Further, the reinforcement (2c) is attached to the corner so that the person (4) does not hit his head.

  After the sidewalk tunnel (2) is installed on the road (1), the embankment (1b) is 35 meters on both sides and a gentle gradient of 2 degrees is created. The 2 degree gradient is not so much burden on the driver who drives the car (3), and when the speed limit is 60 km at the maximum, it is possible to cross three-dimensionally with a gentle inclination of 70 meters at a gradient of 1 degree. In addition, when the speed limit is 30 km at the maximum, a three-dimensional intersection can be made with a gradient of 5 degrees and an inclination of 14 meters. A person with a height of 180 cm or more passes with his head down.

  The sidewalk (2a), which is substantially T-shaped from the sidewalk tunnel (2), is 15 meters at a gradient of 2 degrees and goes down 50 centimeters to the sidewalk tunnel (2). Therefore, since the sidewalks (2a) are cut off by 50 centimeters and dangerous, it is necessary to make them easy to understand with braille blocks and avoid accidents.

  FIG. 3 shows a crossing tunnel installed at the intersection. The crossing tunnel is a place where four sidewalk tunnels (2) are attached to a road (1) excavated 50 cm. The road (1) has a 130 cm fill (1b) to allow the car (3) to pass.

  The sidewalk tunnel (2) is 50 centimeters lower, and in the crossing tunnel in FIG. 1, half of the sidewalk (2a) was lowered to pass the sidewalk tunnel (2), but at the intersection in FIG. The sidewalks (2a) are all inclined downward and proceed in their respective directions. In this case, the reason for not making it scrambled is that there is a possibility that a crime will occur if the prospect is not clear, and there is a possibility that people will not get close to the dangerous sidewalk tunnel (2), Canceled.

  Although this crossing tunnel was made with 180 centimeters, the crossing tunnel in front of the elementary school, which is often used by elementary school students, has no feeling of pressure even at 160 centimeters. Then, the sidewalk (2a) can be lowered by 40 cm from the level (1a), and the road (1) through which the automobile (3) passes can be 120 cm. This is a symmetry of elementary school, and a person (4) who is 160 cm or more passes with his head down. In places with a lot of traffic, a sidewalk tunnel (2) with a height of 210 cm is preferable.

  In FIG. 4, the crossing tunnel according to claim 2 can cross the road (1). When the road (1) connected to the north and south and the road (1) connected to the east and west are three-dimensionally crossed, if the road (1) connected to the north and south is on the lower side, the road (1) connected to the north and south is the tunnel for automobiles (3b) The car tunnel (3b) is installed by digging in half of the height of 5 meters, which is half of the height.

  The east-west road (1) rises 2.5 meters and intersects. Therefore, the sidewalk (2a) of the road (1) connected to the north and south maintains the level (1a) as shown in FIGS. 4 and 5 even if the road (1) goes down. Therefore, the one with more pedestrian traffic is placed below the three-dimensional intersection. On the other hand, the sidewalk (2a) of the east-west road (1) passes 2.5 meters higher. In the case of a left turn on the sidewalk (2a), the road joins the sidewalk (2a) of the east-west road (1) at a distance of 30 meters from the automobile tunnel (3b) with a gradient of 2 degrees.

  FIG. 5 is a front view of a three-dimensional intersection. The front view of the automobile tunnel (3b) has a shape in which two approximately B-shaped blocks are arranged in parallel. The car tunnel (3b) has a side of 500cm, and even if a 3cm steel plate is used, the center is distorted. Instead of a safety guardrail attached to the sidewalk (2a) in the east-west direction. Then, the steel plate is reinforced (2c).

  As for the reinforcement (2c), a total of 4 pieces of 3 cm thick and 120 cm high are attached to the east and west through two blocks on the ceiling (2b). Further, instead of the white line (3a) at the center, a reinforcement (2c) having a height of 20 cm may be attached at the center. In addition, a flat bar with a width of 100 centimeters at the corners of the ceiling (2b) inside the automobile tunnel (3b) crosses north and south, changing the direction 90 degrees from the conventional east-west reinforcement (2c). And attach to reinforcement (2c).

  Also, there is a sidewalk (2a) at the same position as level (1a), and a height of 5 meters is required only for the truck of car (3), but if person (4) is 200 cm Since it can pass, the sidewalk (2a) maintains level (1a). On the other hand, the east-west road (1) is 250 centimeters higher than the level (1a).

  However, as shown in Fig. 6, if priority is given to pedestrians, the north-south road (1) is dug down 4 meters to install a car tunnel (3b), and a sidewalk (2a) in the car tunnel (3b). Installs the automobile tunnel (3b) 1 meter lower than the level (1a) of the dotted line shown in the drawing. Incidentally, it can be seen that the level (1a ′) of Example 4 indicated by the dotted line is 1.5 meters below the level (1a) of the dotted line, which is 1.5 meters lower than that of the dotted line level (1a).

  After installing, if you install the east-west road (1) to a place 1 meter higher than the level (1a), the sidewalker will only need a step of 1 meter. Then, there is a method in which the inclination is 25 meters with a gradient of 2 degrees under the same conditions. This method is advantageous in that a pedestrian walking in the north-south direction and a pedestrian walking in the east-west direction are equivalent to each other with a step of 1 meter.

  When the road looks like a grid, if the car (3) coming from the south at this level crossing wants to go east, pass the car tunnel (3b) and go to the next intersection. Turn left and repeat left turn three times to drive east. At this time, it is an advantage that all turn left. If the car (3) from the south wants to go west, turn left at the intersection in front of the car tunnel (3b), turn right at the next intersection, and turn left at the next intersection. You can run towards. At this time, it is not possible to turn all the way to the left, but to the left where there is a lot of traffic. Thus, the surrounding environment is also important in order to make a three-dimensional intersection.

  Since the three-dimensional intersection of claim 2 may be submerged when it becomes heavy rain, a tunnel that serves as a waterway and a road can be passed to the coast like the emergency waterway of Japanese Patent Application No. 2010-155335. There is a three-dimensional intersection water intake in the town, which is usually used as a road tunnel. The water intake in the town is a place where the road (1) passes underneath because it crosses railway and automobile tunnels. The place of the three-dimensional intersection is where water gathers and damage occurs. The three-dimensional intersection is draining using a pump because normal water cannot be drained from a low position of about 2.5 meters.

  However, when heavy rain fell, the drainage of rainwater could not catch up, and the three-dimensional intersection was submerged. Therefore, if you dig a tunnel to the coast, you can use it not only as a channel for the intake but also for draining the area. In other words, wastewater from heavy rain and wastewater that can no longer be treated by the sewerage system is drained into the sea by this three-dimensional intersection. In normal times, it can be used as a tunnel for automobiles.

1 road 1a level 1a 'level of Example 4 1b embankment 2 sidewalk tunnel 2a sidewalk 2b ceiling 2c reinforcement 3 automobile 3a white line 3b automobile tunnel 4 people

Claims (2)

Install the sidewalk (2a) in the sidewalk tunnel (2) 20 to 160 centimeters lower than the level (1a),
The newly created road (1) is filled with a fill (1b) so as to pass over the sidewalk tunnel (2). Install the road (1) in the automobile tunnel (3b) 50 to 400 centimeters lower than the level (1a),
The crossing road (1) is filled with a bank (1b) so as to pass over the automobile tunnel (3b).

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