JP2001248101A - Grade separation block and construction method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide grade separation block and its construction method capable of moving and constructing a grade separation structure easily and quickly and shortening the construction period and having excellent economical efficiency. SOLUTION: This solid crossing block 1 comprises a floor part inclined according to the grade of the road surface of the planned grade separation a frame part 12 giving the prescribed height to the floor part 11, and a moving auxiliary 13 provided on the frame part 12. The solid crossing blocks 1 are used in the construction method for the solid crossing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crossover block and a method of constructing a crossover.

[0002]

2. Description of the Related Art Conventionally, when constructing an overpass on a road intersection, a large-scale overpass structure is constructed on a road and raised.

[0003]

In the above-mentioned method of constructing an overpass, a large-scale structure must be built on the road intersection where the overpass is to be constructed. Had to be forced. Therefore, the change of traffic for the construction work takes a long time, and the influence on the neighborhood such as inducing traffic congestion is great.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and can easily and quickly move and construct a three-dimensional intersection structure, shorten the construction period, and have excellent economical efficiency. It is an object of the present invention to provide a method for constructing a block and an intersection.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, an overpass block according to the present invention is provided with a floor section which is inclined in accordance with a gradient of a road surface at a planned intersection, and a floor section which is inclined. The present invention provides a multi-level intersection block comprising a pedestal section providing a predetermined height and a movement assisting section provided on the pedestal section. A floor portion inclined in accordance with the slope of the road surface, and a gantry portion for providing the floor portion with a predetermined height,
Using a three-dimensional intersection block composed of a movement assisting part provided on the gantry part, a pair of three-dimensional intersection blocks constituting the abutment part are installed and fixed to face each other at a fixed interval to constitute the abutment part. A crossing bridge is installed between a pair of grade separation blocks, and a grade separation block forming an inclined portion is continuously provided on a side opposite to the crossing bridge side of the pair of grade separation blocks forming the abutment. To provide a method for constructing a grade separation.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, an embodiment of a method for constructing a three-dimensional intersection block and three-dimensional intersection according to the present invention will be described below.

<A> Level Crossing Block The level crossing block 1 includes a floor section 11, a gantry section 12, and a movement assisting section 13. Overpass block 1
A three-dimensional intersection can be constructed by forming a part of the three-dimensional intersection and connecting a plurality of the three-dimensional intersections. Therefore, the shape and height of the grade separation block 1 are set according to which part, such as the abutment part and the slope part, of the grade separation to be constructed.

[0008] The floor 11 constitutes the uppermost part of the grade separation block 1 and is a portion that becomes a road through which cars can pass.
For example, it is formed by a known method such as arranging a reinforcing bar in a mold and then pouring concrete into the mold and curing. The floor 11 may be formed by laying a PC board.
The floor 11 is formed to be inclined in accordance with the gradient of the road surface at the planned grade separation.

<B> Mount Section The mount section 12 is a member that gives the floor section 11 a predetermined height. Therefore, the gantry 12 has a shape corresponding to the height given to the floor 11. When the gantry 12 is composed of a plurality of empty rooms and a plurality of walls partitioning the empty rooms,
This is useful because it is possible to reduce the weight. Stand 1
2 may be constituted by, for example, a honeycomb structure or a card house structure. In addition, in the case where a movement assisting means such as an air caster is installed in the inside of the gantry portion 12, or when the foundation after the installation is built from the inside by a foundation machine such as a cast-in-place pile, only the space necessary for the installation is required. Is provided.

<C> Movement Assisting Unit The movement assisting unit 13 is a member that assists in moving the overpass block 1 to the construction site of the overpass, and is provided on the gantry unit 12. The movement assisting section 13 may be any as long as it can assist in moving the three-dimensional intersection block 1. For example, a known plurality of wheels or an air caster is used. The movement assisting unit 13 may be provided inside or outside the gantry unit 12.

Next, a method for constructing a grade separation using the grade separation block 1 will be described. <2> Assembling process of the grade separation block If the construction of the foundation is necessary according to the geology of the intersection where the intersection is constructed, the foundation is constructed in advance. At the place adjacent to the intersection where the grade separation is to be constructed, the grade separation block 1 is assembled. In the assembling process of the overpass block 1, the traffic site does not need to be changed because the intersection site is not used. If the traffic is switched only on the day when the moving and installing process of the assembled overpass block 1 described below is performed. Good. Therefore, the influence on the neighborhood can be minimized.

<E> Step of moving and setting up the grade separation block A predetermined place where the grade separation block is moved is previously leveled. The multi-level intersection block 1 is moved from the assembly location of the multi-level intersection block 1 adjacent to the intersection to the installation location on the intersection. The crossover block 1 is moved using a tow truck. In this case, the three-dimensional intersection block 1 is provided with the movement assisting part 13 so that it can be easily moved.

After positioning and installing a pair of overpass blocks 1 constituting the abutment at a predetermined interval, the movement assisting section 13 is removed, and the base section (pile, deep) is used while being used from the inside of the overpass block 1. Foundation) and fix it. As the interval between the pair of grade-crossing blocks 1, a spacing corresponding to one passing through a grade separation is appropriately provided. Then, the crossing bridge 2 is installed and fixed between the pair of graded intersection blocks 1 constituting the abutment.

The crossing bridge 2 is a bridge through which automobiles and the like pass, and is formed using a known member such as reinforced concrete or a PC board in the same manner as the floor plate. The connection and fixation between the crossing bridge 2 and the three-dimensional intersection block 1 is performed by a known connection and fixation method, for example, by laying expanded metal on a joint portion and then fixing it with tie bars and bolts. In particular, when connecting between the three-dimensional cross blocks 1 using a PC steel bar, it is possible to realize connection and fixing by highly precise integration.

On the opposite side of the pair of overpass blocks 1 forming the abutment part from the crossing bridge 2 side, a three-dimensional intersection block 1 forming an inclined portion is continuously provided. Here, the required number of the grade separation blocks 1 constituting the inclined part are continuously provided in accordance with the length of the grade separation to be constructed. The fixing between the respective crossing blocks 1 is performed by a known connection fixing method similarly to the fixing between the crossing bridge 2 and the crossing block 1 described above. Thus, the construction of the grade separation is completed. When the need for a grade separation is eliminated, the grade separation is removed in the reverse procedure.

[0016]

As described above, the method for constructing a three-dimensional intersection block and three-dimensional intersection according to the present invention can provide the following effects. <A> By providing the movement assisting unit in the divided intersection block obtained by dividing the divided intersection into blocks, the divided intersection can be easily constructed simply by moving and installing a plurality of the divided intersection blocks. <B> In addition, when the constructed grade separation becomes unnecessary, it is possible to easily perform the division removal of the grade separation,
After removal, it can be diverted as a grade separation at other intersections, so it is excellent in economy and resource saving. <C> Since the pedestal portion of the grade separation block is composed of a plurality of cavities and a plurality of walls partitioning the vacancies, the weight of the grade separation block can be reduced. This makes it easier to move, install and remove the grade separation block. <2> After assembling a grade separation block near the intersection, a grade separation block is constructed by moving and connecting the grade separation block on the intersection. Therefore, it is only necessary to switch the traffic on the moving installation day of the overpass, so that the influence on the neighborhood can be minimized.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a method of constructing a grade separation block and a grade separation.

FIG. 2 is an explanatory diagram of a grade separation block.

FIG. 3 is an explanatory diagram of a method of constructing a grade separation.

[Explanation of symbols]

 1 ・ ・ ・ Overpass block 11 ・ ・ Floor section 12 ・ ・ Ground section 13 ・ ・ Movement assisting section 2 ・ ・ ・ Crossover bridge

Claims (5)

[Claims] 1. A floor section which is inclined according to the gradient of a road surface of an intended grade separation, a gantry section for providing a predetermined height to the floor section, and a movement assisting section provided on the gantry section. Overpass block 2. The three-dimensional intersection block according to claim 1, wherein the mount comprises a plurality of vacancies and a plurality of walls partitioning the vacancies. 3. The three-dimensional intersection block according to claim 1 or 2, wherein the gantry is formed of a honeycomb structure. 4. The three-dimensional intersection block according to claim 1, further comprising an air caster or a plurality of wheels as a movement assisting part of the three-dimensional intersection block. 5. At a road intersection, a floor portion which is inclined according to a gradient of a road surface of a planned grade separation, a gantry for giving the floor a predetermined height, and a movement assisting portion provided on the gantry portion Using a three-dimensional intersection block composed of: a pair of three-dimensional intersection blocks forming an abutment portion are fixedly installed facing each other at a certain interval, and traversed between a pair of three-dimensional intersection blocks forming the abutment portion A method for constructing a three-dimensional intersection, wherein a bridge is installed and fixed, and a three-dimensional intersection block forming an inclined portion is continuously provided on a side of the pair of three-dimensional intersection blocks forming the abutment opposite to the crossing bridge.