JP2000230205A - Elevated track construction method and equipment - Google Patents

Abstract

(57) [Summary] [Problem] To efficiently construct an elevated track such as a new transportation system. SOLUTION: When an elevated track 1 is constructed, a new pillar 2 is erected in front of the constructed existing track and a new girder 3 is erected between the pillar and the existing track to move the track forward. To be extended. The column member 2a and the girder member 3a are loaded on the construction device 4 in a horizontal posture, and the construction device is moved to a position in front of the existing track under the existing track and transported to a position in front thereof. It is erected and the girder is lifted by the lifting equipment 7 and erected. The construction apparatus mounts on a bogie 5 traveling below the existing track, a erection equipment 6 for holding and erecting the column material, and a lifting equipment 7 for holding and raising the girder material. Lifting equipment can be moved in the lateral direction of the bogie.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction method and a construction apparatus suitable for use when constructing an elevated track in a new transportation system, for example.

[0002]

2. Description of the Related Art In recent years, intense traffic congestion has become chronic on roads in urban areas. For the purpose of alleviating or eliminating such traffic congestion, small vehicles with a capacity of about 10 people are guided by guide rails and fully automatically driven. A relatively simple public transportation system, so-called new transportation system, is being planned in various places.

[0003]

When planning a new transportation system, it is often difficult to secure a new site for laying the guide rail, which is the track of the new transportation system. It is common to utilize an upper space, for example, a space above a median strip, and to provide an elevated track there. However, in order to construct an elevated track on an existing road, work with a crane from the road is the center, so it is essential to regulate road traffic, and it is not sufficient for arterial roads in large cities. In many cases, it is difficult to regulate traffic. Therefore, it was urgently necessary to develop an effective measure for constructing an elevated track with as little traffic regulation as possible.

[0004]

SUMMARY OF THE INVENTION In view of the above circumstances, the construction method according to the first aspect of the present invention is to construct an elevated track in which columns are erected at predetermined intervals and a girder is erected between the upper ends of the columns. Erecting an elevated track to be constructed sequentially by erecting a new pillar in front of the installed existing track and installing a new girder between the pillar and the existing track. When erecting a new column and erection of a new girder, both the column material and the girder material are loaded on the construction equipment in a horizontal posture, and the construction equipment is run below the existing track and in front of it. After the column material is erected and erected by the erection equipment mounted on the construction device, the girder material is lifted by the lifting equipment mounted on the construction device, and the column material and the existing track are lifted. Is to be installed between That.

According to a second aspect of the present invention, there is provided a construction apparatus used in the elevated track construction method according to the first aspect, wherein the column material is horizontally placed on a bogie on which the column material and the girder material are loaded and travels. A lifting device that holds and raises the girder material while maintaining and raising the girder material in a horizontal position is mounted.

According to a third aspect of the present invention, in the construction apparatus according to the second aspect of the present invention, the lifting equipment is mounted so as to be movable in a horizontal direction orthogonal to a traveling direction of the bogie.

[0007]

1 to 3 show an embodiment of the present invention. The elevated track 1 to be constructed according to the present embodiment serves as a guide rail of a new transportation system, and includes columns 2 erected at regular intervals and a girder 3 erected between upper ends of the columns 2. , And the vehicle travels on the girder 3 itself as a guide rail.

The construction method according to the present embodiment is characterized in that a new pillar 2 is erected in front of an existing track already constructed and a new girder 3 is erected between the pillar 2 and the existing track. Is basically extended forward. When a new pillar 2 is to be erected and a new girder 3 is to be erected in front of the existing track, the column 2a to be the pillar 2 and the girder 3a to be the girder 3 are both set in a horizontal posture. 4 and transports the construction device 4 to a position in front of the existing track by traveling the space below the existing track.
The column member 2a is erected and the girder member 3a is erected by the equipment mounted on the vehicle.

[0009] The construction device 4 is provided with a hydraulic jack 6 as a erection device for holding the column member 2a in a horizontal position and turning it forward to build it on a trolley 5 which runs below the existing track. And two hydraulic jacks 7 as lifting equipment for holding the girder member 3a in a horizontal position and raising it. The two hydraulic jacks 7 serving as lifting equipment are movable in the width direction of the bogie 5 (horizontal direction perpendicular to the traveling direction, direction perpendicular to the plane of the drawing), and are held by them. Girder material 3a
Can be positioned in the lateral direction.

[0010] In order to perform the work of extending the existing track forward using the above-described construction apparatus 4, the pillar 2a is required to be installed at the work base.
The beam and the girder 3a are loaded on the construction device 4, and the construction device 4 is caused to travel in the space below the existing track, guided to the front of the existing track as shown in FIG. 1, and stopped there. In addition, the foundation 8 for erecting the new pillar 2 is constructed in advance.

With the construction device 4 stopped at a position in front of the existing track, the hydraulic jack 6 is operated to erect the pillar 2a, and the position of the bogie 5 is adjusted back and forth as necessary.
As shown in FIG. 2, the pillar 2a is erected and fixed on the foundation 8. Thereby, a new pillar 2 is erected.

Next, as shown in FIG. 3, the girder 3a is raised by operating the hydraulic jack 7, and the hydraulic jack 7 is moved laterally with respect to the bogie 5, and the bogie 5 is moved back and forth as necessary. Then, the beam 3a is erected as a new girder 3 between the new pillar 2 erected earlier and the existing track.

According to the above construction method, most of the work related to the erecting of the new column 2 and the erection of the new girder 3 can be performed below the elevated track 1 to be constructed, and the column material 2a And the beam 3a are also transported by the construction device 4 using the space below the existing track, so that work from the ground using a crane can be greatly reduced or almost eliminated as in the prior art. Even when the device 1 is provided on a road, it is possible to minimize traffic restrictions on surrounding roads. In addition, the pillar 2 can be erected only by erecting the pillar 2a and fixing it to the foundation 8;
Can be erected just by raising the
Temporary work is not required and the workability is excellent, and the construction period can be shortened and the construction cost can be reduced.

The construction of the construction apparatus 4 may be appropriately changed according to the dimensions and form of the pillar 2a and the girder 3a. For example, the lifting equipment and lifting equipment are not limited to those using the hydraulic jacks 6 and 7, but other types can be adopted. In addition to the lifting equipment, the lifting equipment can be moved in the lateral direction of the bogie. It may be configured so that the lateral positioning can be performed when erecting the pillar material. Further, the construction apparatus is preferably a self-propelled one, but may be one that travels by traction or the like, or may be configured to guide the construction apparatus by a temporary traveling track if necessary.

The present invention is optimally applied to a new transportation system in which the structure of the elevated track 1 to be constructed is relatively simple, but is limited to the new transportation system if the elevated track 1 has the same structure. It is possible to apply other without.

[0016]

According to the construction method of the first aspect of the present invention, a column material and a girder material are loaded on a construction device traveling below an existing track and transported to a position in front of the existing track, where the column material is erected. Since it is erected and raised by equipment, the girder material is lifted by lifting equipment and erected, most of the work related to column erection and girder erection can be performed directly under the elevated track to be constructed, In addition, since the transport of columns and girders is also performed using the space below the existing track, work from the ground using a crane can be greatly reduced or almost eliminated as in the past, and thus elevated tracks can be used. Even when installed on a road, traffic regulations can be reduced to a minimum, which is optimal when a relatively simple elevated track in a new transportation system or the like is constructed.

According to a second aspect of the present invention, there is provided a construction apparatus for holding a column member in a horizontal position on a trolley on which a column member and a girder member are loaded and traveling, and erecting the column member and a girder member in a horizontal position. Since it is equipped with lifting equipment that holds and raises, it is possible to transport column materials and girder materials and to work on their standing and erection work only with this construction equipment. It is suitable for use when performing.

In the construction apparatus according to the third aspect of the present invention, since the lifting equipment can be moved in the horizontal direction orthogonal to the traveling direction of the bogie, the lateral positioning of the girder can be easily performed when the girder is erected.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating an embodiment of the present invention, and is a diagram illustrating a state in which a construction device is arranged at a position in front of an existing track.

FIG. 2 is a view showing a state in which a pillar is erected.

FIG. 3 is a diagram showing a state in which a girder member is erected.

[Explanation of symbols]

 Reference Signs List 1 elevated track 2 pillar 2a pillar material 3 girder 3a girder material 4 construction equipment 5 bogie 6 hydraulic jack (building equipment) 7 hydraulic jack (lifting equipment)

Claims (3)

[Claims] When constructing an elevated track having pillars erected at predetermined intervals and a girder between the upper ends of the pillars, a new pillar is erected in front of the already-constructed existing track. An elevated track to be constructed is to be extended sequentially by constructing a new girder between the pillar and the existing track, and in erection of a new pillar and construction of a new girder,
Both the column material and the girder material are loaded on the construction equipment in a horizontal posture, the construction equipment is moved under the existing track and arranged in front of the construction equipment, and the column material is mounted there by the erection equipment mounted on the construction equipment. An elevated track construction method, comprising: erecting and standing, raising the girder by a lifting machine mounted on the construction device, and erection between the column and an existing track. 2. A construction apparatus used in the method of constructing an elevated track according to claim 1, wherein a bogie on which the column material and the girder material are loaded and travels,
An elevated track construction apparatus, comprising: an erecting device that holds and raises the column material while maintaining it in a horizontal position; and a lifting device that holds and raises the girder material in a horizontal position. 3. The elevated track construction apparatus according to claim 2, wherein the lifting equipment is mounted movably in a horizontal direction perpendicular to a traveling direction of the bogie.