JP2973148B2 - How to lay a temporary subbase for multiple routes - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[Industrial applications] When switching railroads and roads running on the ground surface to underground, excavate underground lines and construct structures while maintaining the current running state. Must. The present invention relates to a method of laying a plurality of temporary roadbeds in order to maintain a vehicle capable of traveling on a plurality of routes on the ground while excavating underground during such construction.

[0002]

2. Description of the Related Art When a railroad or a road running on the ground is switched to an underground, a temporary roadbed is laid to prepare for the switching in order to maintain a current running state. This temporary roadbed is a board on which rails are laid, the weight and impact of the vehicle currently traveling on the ground surface are transmitted, and the weight etc. is transmitted to the support provided underground to work in the underground space Body. The method of laying the temporary roadbed is such that the underground is firstly excavated, and upon completion of the excavation, the upper surface of the excavated portion is quickly closed by the temporary roadbed so that the weight of the vehicle can be received. This is, for example, an operation to quickly cover a trench immediately after excavation while excavating the trench.

In such a case, if there is a large working space or a work passage on both sides of the groove, the lid can be quickly closed by assembling and moving the lid beside the groove. However, in the case of an actual railway, the work space is extremely limited because there are many houses and general roads around it. For this reason, it is required that the temporary subbed assembled at a distant assembling base be quickly moved along the rail in a short time after the last train, using only the currently used railway site. Further, when the temporary line is composed of a plurality of lines, the work becomes more complicated, and it becomes more and more difficult to work in a narrow space within a short time.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and is intended to extend and lay a temporary subbase to a long distance in a narrow use space and under a short working time. It is an object of the present invention to provide a method of laying a temporary subbase of a plurality of routes that can be performed. A further object of the present invention is to provide a method of laying a temporary roadbed of a plurality of routes, which can efficiently lay a temporary roadbed of a plurality of routes.

[0005]

[Means for Solving the Problems] That is, the present invention provides:
This is a construction method of laying a temporary roadbed continuously on the temporary line of the book and an adjacent adjacent line, a temporary roadbed for temporarily receiving a rail, a beam for suspending the temporary roadbed, and vertical jacks provided at both ends of the beam. Gantry base, wheels to be attached to the gantry, temporary rails provided on both sides of the tentative roadbed site, and crossings laid between this temporary rail and the adjacent roadbed site The temporary base is attached to the lower surface of the beam, the jack is extended, the base is raised, and the base is moved on the temporary rail by the wheels of the base, and after stopping at a predetermined position, the base is lowered, and the temporary base is Connected to the end of the temporary subbase, and the next temporary subbase is mounted on the crossing rail, and this temporary subbase is moved on the crossing rail to the end of the previous temporary subbase that was laid on the adjacent route. Continue to repeatedly performs this task, a laying method temporary roadbed multiple lines.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. <A> Arrangement of a plurality of routes When the laying method of the present invention is adopted, a plurality of routes are switched as shown in FIG. In this case, one temporary route A may be extended first, and the adjacent route B may be extended later. However, in the method of the present invention, the temporary route A
In this case, a method of extending the temporary roadbed 4 in the above manner and extending the adjacent road B in parallel is adopted. In the embodiment, the case of two lines will be described, but the number of lines can be extended in a similar manner. Also, the term "adjacent" line does not necessarily mean a line that is provided next to the line, and the same construction method may be adopted when a line in use is sandwiched between two lines. it can.

<B> Temporary roadbed laying device The structure of the device used in the laying method of the present invention is as follows. That is, it is basically composed of a horizontal beam 1 for suspending the temporary roadbed 4 and vertical jacks 2 provided at both ends of the beam 1. Thus horizontal beam 1
And the vertical jack 2 constitute a gate-shaped gantry 3.
Attachment and removal of the gantry 3 and the temporary roadbed 4 can be easily performed by using bolts. In addition, when the jack 2 used is one having a large expansion and contraction used in a shield excavator or the like, the work efficiency can be greatly improved.
The temporary roadbed 4 to be transported is a rectangular body having a fixed thickness and has a fixed thickness, and is provided with rails thereon. In some cases, rails may be installed at the right time.

<C> Wheels In order to make this gate-shaped gantry 3 movable, for example, wheels 5 are directly attached to the lower end of the vertical jack 2. When such a configuration is adopted, the position of the wheel 5 with respect to the horizontal beam 1 moves up and down due to expansion and contraction of the jack 2. Therefore, the adjustment of the height of the horizontal beam 1 during construction is very quick. However, the present invention is not limited to the configuration in which the wheel 5 is provided at the tip of the jack 2, and legs are provided at both ends of the gate type gantry 3.
A structure in which wheels 5 are attached to the lower ends of the legs can be employed. In this case, if the legs are attached and detachably installed, the vehicle travels with the wheels 5 while moving, and when reaching a predetermined position, the legs are disassembled with the wheels 5 slightly lifted by the jacks 2. If the size is reduced, the same effect as that of the embodiment in which the jack 2 and the wheel 5 are integrated can be achieved.

[0009]

[Construction method] Next, a method for laying the temporary roadbed of a plurality of lines described above and a method of using the laying device for the temporary roadbed 4 will be described. <B> Purpose of the work Prior to the excavation of the underground, temporary line A and adjacent line B
Has many piles driven vertically into the ground. The upper ends of the vertical piles are connected by a horizontal girder, and a number of temporary girder members for receiving the temporary subbed 4 are arranged and installed to form temporary girder A1 and B1 for the temporary line A and the adjacent line B. According to the present invention, it is possible to perform an operation of simultaneously extending the two routes while arranging the temporary roadbed 4 on the plurality of the parallel temporary receiving beams A1 and B1 and passing the temporary roadbed 4 in the direction orthogonal to the group of beams. This is the purpose of the construction method. In such a case, as described above, there is no work path or open space in the surrounding area, and under the unfavorable condition, the temporary sub-base 4 is quickly connected to both routes over a long distance and within a short time from the last train to the first train. Must be extended in parallel.

<B> Temporary rails, crossing rails Temporary rails 6 are laid on both sides of the temporary receiving girder A1 of the temporary line A in parallel with the extension direction, and the temporary rails 4 are transported using the temporary rails 6. Do. It is not always necessary to lay the temporary rail 6 on the adjacent line B, and the girder may be installed only at the transfer position of the temporary roadbed. Between the temporary line A and the adjacent line B, a transverse rail 7 connecting the two lines is arranged only at the transfer position of the temporary roadbed. The crossing rail 7 is arranged only at the time of delivery of the temporary roadbed, is removed immediately, and is diverted to the next delivery position.

<B> Mounting of the temporary roadbed 4 First, the temporary roadbed 4 is mounted on the laying device. For this purpose, the lower surface of the beam is brought into contact with the upper surface of the temporary roadbed 4 by shortening the jack 2 or pushing up the temporary roadbed 4 from below. This attachment can be easily performed with bolts or the like.

<C> Traveling (FIG.) Next, the jack 2 is extended and the gantry 3 is raised. In this state, the vehicle is caused to travel on the temporary rail 6 by the wheels 5. As described above, the wheel 5 can be used even if it is attached to the tip of the jack 2 or a structure in which the wheel 5 is attached via another wheel 5 leg. The movement can be used whether it is a self-propelled structure or a structure towed by another bogie.

<D> Connection of the temporary subbase (FIG.) When the last part of the temporary subbase 4 traveling this time reaches the tip of the temporary subbase 4 extended up to the previous time, the temporary subbase 4 is lowered and connected to the previous part. . For this purpose, the jack 2 is shortened and the position of the horizontal beam 1 is lowered. In this case jack 2
If five wheels are attached separately, first, the jack 2 is slightly extended to lift the wheels 5 from the temporary rail 6, and then the five wheels are removed. By shortening the jack 2 in this manner, the temporary roadbed 4 can be installed on a predetermined temporary receiving girder. Thereafter, the connection between the gantry 3 and the temporary roadbed 4 is released. When the installation of the temporary roadbed 4 is completed in this manner, the temporary subbase 4 is divided into beams, jacks 2, and other parts, and is lightened and transported to the work base by a simple device.

<E> Delivery of Temporary Roadbed Next, a crossing rail 7 is installed between the temporary line A and the adjacent line B. The next temporary roadbed is mounted on the cross rail 7 by shortening the jack 2. (FIG. 3) In that case, a transverse wheel 8 that is rotatable in the transverse direction is detachably attached to the lower surface of the temporary roadbed with a bolt or the like. Then, the temporary base 4 is moved on the crossing rail 7 while the gantry 3 with the jack 2 shortened is mounted on the upper surface. (FIGS. 4 and 5) When reaching the position of the tip of the previous temporary subbase 4 laid on the adjacent route B, the jack 2 is extended and the temporary subbase 4 is slightly lifted. In this state, the crossing wheel 8 is removed, the crossing rail 7 is pulled out, the jack 2 is shortened, and the jack 2 is connected to the tip end position of the previous temporary roadbed 4. (FIG. 6) As described above, the extension of the temporary line A and the extension of the adjacent line B are repeated to extend the two lines in parallel.

[0015]

The method for laying a temporary roadbed of a plurality of routes according to the present invention is as described above, so that the following effects can be obtained. <A> With a simple member such as a beam, a jack, and wheels, a temporary subbase can be transported and extended to any distance. Therefore, it is most suitable for work on railways in cities with little extra space around. <B> Using a jack having a large expansion and contraction allowance, such as the use of a jack for a shield excavator, makes it possible to increase the distance of ascent and descent of the temporary subbase, and the work is extremely efficient. <C> When extending the roadbed of a plurality of routes, the routes can be extended in parallel using only one of the routes. Therefore, work can be completed quickly and economically even in construction in a city where a work base or work machines cannot be used freely. <D> Although switching to underground has been described above, the method of the present invention can be similarly applied to switching to ground.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram illustrating a method of laying a temporary roadbed on a plurality of routes, the operation of a temporary roadbed laying device

FIG. 2 is an explanatory view of the operation of a temporary roadbed laying device.

FIG. 3 is an explanatory diagram of the operation of a temporary subbase laying device.

FIG. 4 is an explanatory diagram of a method of laying a temporary subbase.

FIG. 5 is an explanatory diagram of a method of laying a temporary subbase.

FIG. 6 is an explanatory diagram of a method of laying a temporary subbase.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E01B 37/00

Claims (1)

(57) [Claims] 1. A method for continuously laying a temporary roadbed on one temporary line and an adjacent adjacent line, comprising: a temporary roadbed for temporarily receiving a rail; a beam for suspending the temporary roadbed; and both ends of the beam. A vertical frame provided by a vertical jack provided on the base, wheels to be mounted on the frame, temporary rails provided on both sides of the site where the temporary roadbed is to be laid, and the temporary rails and the site where the adjacent road is to be installed. The temporary roadbed is attached to the lower surface of the beam, the jack is extended, the gantry is raised, and the gantry is run on the tentative rails with the wheels of the gantry raised. The temporary subbase was connected to the end of the previous temporary subbase, the next temporary subbase was mounted on the crossing rail, and this temporary subbase was moved on the crossing rail and laid on the adjacent line Connected to the distal end of the rotating temporary roadbed, performing Repeat the procedure described above, laying method temporary roadbed multiple lines