JP5318335B2 - Construction method of the structure above the railway - Google Patents

Description

  The present invention relates to a method for constructing a structure over a track and an apparatus therefor, in which an artificial ground or the like is installed over a track in an existing station such as an existing platform, and a structure such as a promenade or a station building is newly built.・ Applicable when expanding.

  When constructing structures over the railway lines where such trains operate, there are various restrictions, such as prioritizing train operations and having to work outside the operating hours, especially in the suburbs of cities. In the vicinity of the station, there are restrictions on the carry-in route, and it is not uncommon to work in three- and four-way-blocked places and confined spaces, and there was a problem when carrying out construction by lifting and carrying structural components.

  Conventionally, tower cranes, self-propelled hydraulic cranes, etc. have been used for the construction of such structures, and the tower cranes are permanently fixed, so they are very close to the tracks on which the train operates for safety reasons. Can not be installed. For this reason, it must be installed almost outside the railway track, and the place where the structure is actually built is separated from the place where the tower crane is installed, so a large crane with a larger working radius than the lifted object must be selected. There is a problem that it is uneconomical because it has to be carried out, and that it is difficult to secure a pay-in yard necessary for installing a tower crane and a carrying-in path for assembly members of the crane in the railway premises around the station. It was. In addition, it is necessary to design the foundation of the tower crane, construct the foundation etc. through the application and permission procedures, and assemble the tower crane on it, so it takes time from planning to the start of use. there were.

  In addition, even in self-propelled hydraulic cranes, assembly cranes such as crawler cranes need to secure a pay-in yard and a crane member carry-in path, as in the case of the tower crane, and a crane for both road and land use. Then, it is possible to install a crane between the tracks on the track yard by moving the crane near the place where the structure is built by entering the crane from a place with relatively space outside the station premises, Even in that case, because of the construction of hanging components, the problem of having to relocate or replace the trolley wire within the swivel range of the boom, or when replacing the trolley wire, In addition, there was a problem in that it was necessary to further mobilize the person in charge of electrical work and the watchman for each construction work performed at night. In addition, in order to obtain the reaction force of the installation ground by extending the outrigger to the outside of the crane body at the crane installation site, it is necessary to carry out line lining and removal work over a wide range, and time for construction work There was a problem that it took time and effort.

  In order to solve such a problem, the present applicant, as a construction method and apparatus for an over-the-rail structure, installed all the one-node pillars of the steel structure in a standing manner, and constructed the end of the construction constructed on one end side thereof. On the frame, the process of assembling an appropriate length block of the upper structural part, the process of sliding the assembled block to the other end side, and the process of assembling and connecting the next block to the slide block are sequentially repeated. The upper structure protruding from the end frame to the other end side is slid while being supported by the one-node pillar on the other end side. When the upper structure reaches a predetermined installation position, the upper structure is lifted down to We have already proposed a construction method and apparatus for a steel structure in which a 2-node column is joined to a 1-column column, and a 1-node floor slab is lifted down to a proper mounting position and joined to the 1-node column (Patent Literature). 1).

However, even in the construction method and apparatus for steel structures described in Patent Document 1, in the conventional construction of a vertical member directly above the track such as a first column, a tower crane or a self-propelled hydraulic When using a tower crane or a self-propelled hydraulic crane, the work must be done by using a crane or a forklift for running on a track. The conventional problems have not been solved, and when using a forklift, the members to be lifted are limited to relatively light objects, so that the components must be segmented, which is uneconomical, and three-dimensional Since the lifting work cannot be performed efficiently, it takes time to insert the temporary fixing bolts and adjust the erection, and the work takes time and effort.
JP 2005-036485 A

  Therefore, the present invention solves the problems of the prior art, and when constructing an over-the-track structure, it can be constructed in a confined space, and the work of lifting and erection in the immediate vicinity of the construction site of the structure You can install and work with a car, and do not need a paying yard for work vehicles, and there is no preparation period for application procedures. An object of the present invention is to provide a construction method and an apparatus for an over-the-rail structure that can be constructed without refilling work, and that can reduce work time and labor.

In order to solve the above-mentioned problem, a construction method for an over-the-rail structure according to the first aspect of the invention is a method for constructing a structure over the track, and is configured to be able to travel on the track and on land. A lower traveling body, an upper revolving body that can swivel with respect to the traveling body, a telescopic arm that can be raised and lowered with respect to the revolving body, and a telescopic arm that is provided at a tip of the arm. and a gripping device for gripping a component has been equipped self-propelled working vehicle, while power is stopped working to feeders without relocation-Sheng Sort the trolley wire of the line over, the distance between the trolley wire In the state where the arm is lying down to be 1.2 m or more, it is allowed to enter on the track and run on the track up to a predetermined construction position, and after completion of the energization stop operation to the feeder, Grip the components one by one with the gripping device of the work vehicle It is lifted and passed under the trolley wire while being gripped substantially horizontally, and is carried to the upper side of a predetermined construction position, and the components are attached to the predetermined position with the predetermined direction. And
According to a second aspect of the present invention, the work vehicle gripping device includes a fixed claw and a movable claw operated by a gripping cylinder, and the fixed claw and the movable claw. Are each provided with a notch for gripping a square member, and when the component member is picked up and lifted by the gripping device, the corner of the component member is engaged with the notch. And

According to a third aspect of the present invention, there is provided a method for constructing an over-the-rail structure according to the first or second aspect , wherein a predetermined amount of the structural member is loaded on a rail-carriage configured to be able to travel on the track and on the land. , Before completion of the operation to stop energization of the feeder, the rail car enters the track from a place with a relatively large space, travels the rail car to near the installation position of the work vehicle, and loads the components . It is characterized by that.

According to a fourth aspect of the present invention, there is provided a method for constructing an over-the-rail structure according to the third aspect , wherein the work vehicle and the railroad carriage are caused to travel on the same track before completion of the operation of stopping energization to the feeder. or placed so as to approach the running direction back and forth Te, or is traveling on the adjacent track, characterized in that disposed so as to approach between lines and.

The present invention is as described above, and according to the construction method for an over-the-rail structure according to the first and second aspects of the present invention, the construction method is for constructing the structure over the track, the on-track and on-land A lower traveling body configured to be able to travel, an upper revolving body that can pivot with respect to the traveling body, a telescopic arm that can be raised and lowered with respect to the revolving body, and a telescopic arm, and a tip of the arm provided with a gripping device and is self-propelled working vehicle which is equipped for gripping the components of the structure, while power is stopped working to feeders without relocation-Sheng Sort the trolley wire of the line over the The arm is put down on the track so that the separation distance from the trolley wire is 1.2 m or more, and it is installed on the track by traveling to the vicinity of a predetermined construction position. After completion of the deenergization operation, the above-mentioned configuration is achieved by the work vehicle gripping device. While picking up the materials one by one and lifting them up, passing them below the trolley wire while holding them approximately horizontally, carrying them up above a predetermined building position, and setting the direction of the constituent members to a predetermined direction Because it is attached to the position, when the work vehicle is made to enter and run on the track, and when the construction member is lifted and built by the work vehicle, the wires such as the trolley wire over the track and the cable There is no need to relocate and replace the work, and the work time and labor can be reduced. In addition, since a structure is constructed using a work vehicle such as that described above, construction is possible even in a confined space without the need for a large work vehicle or large equipment, and a work vehicle assembly yard is required. Even if there is no preparation period such as application procedures, construction is possible. And since the work vehicle can run on the track, it can be run by entering the track from a place with a relatively large space outside the station, and it can be installed near the construction site of the structure inside the station. Therefore, it is possible to construct a structure even with a small work vehicle having a small lifting capacity, which is advantageous in that it is economical.

According to the construction method of the above-the-track structure according to the third and fourth aspects of the invention, in the first or second aspect , the component member of the structure is attached to the track-rail vehicle configured to be able to travel on the track and on land. was required amount loaded, before energization stop work completion to feeders, this軌陸carriage relatively space of location is advanced on the line, the configuration by running the軌陸carriage to near the installation position of the work vehicle Since the members are carried in, it is possible to carry the construction work of the sky structures on the railroad by transporting the constituent members on the road and the railroad trolley that can travel on the railroad. For this reason, a component can be continuously conveyed by one railroad trolley from a manufacturing factory to the vicinity of a predetermined construction position without performing a transshipment operation of a load, and a carry-in time and a carry-in time can be reduced.

  An embodiment of the present invention will be described with reference to the drawings.

  One embodiment is an example in which a steel column of the first node is erected as a structural member and is joined to an existing foundation pile in order to construct an artificial ground such as a station building as a structure on the platform of an existing station It shows. FIG. 1 is an overall front view of a self-propelled working vehicle or a rail vehicle as a handling machine as viewed along the platform, and FIG. 2 is a self-propelled working vehicle. FIG. 3 is a plan view showing the work vehicle in a state in which the upper turning body turns 90 ° with respect to the lower traveling body from the state of FIG. 1, and FIG. FIG. 5 is a side view showing the working vehicle in the state shown in FIG. 3. FIG. 5 is an enlarged view showing the gripping device extending from the mast erected on the upper swing body of the working vehicle.

  In these drawings, 1 is a self-propelled work vehicle, and 2 is a track-and-dolly truck. The self-propelled work vehicle 1 uses a hydraulic excavator as a base machine, and includes a lower traveling body 5 that can travel on a track and the land, an upper revolving body 6 that can turn with respect to the traveling body, and the turning A telescopic arm 7 that can be raised and lowered relative to the body, and a gripping device 8 that can be rotated about the longitudinal direction of the arm at the tip of the arm and swingable vertically and horizontally. Yes. The lower traveling unit 5 and the upper revolving unit 6 are connected to each other by a revolving device 9 provided at the center of the lower traveling unit 5 so as to be able to turn 360 ° about the vertical direction. The members such as the lower traveling body 5 constituting the work vehicle 1 will be described in more detail below.

  The lower traveling body 5 includes a base frame 11 as a base, a track traveling apparatus 12 configured to be able to undulate vertically on the base frame, and a caterpillar apparatus 13 configured to be able to protrude outward or be stored inside. It is. As shown in FIG. 5, the track traveling device 12 is erected so as to protrude downward from the caterpillar device 13 and is placed on the track when traveling on the track. When the vehicle arrives at the building position, as shown in FIG. 2, the caterpillar device 13 that has fallen upward and is stored is grounded to the ground, and the entire work vehicle 1 is also lowered to work. Installed in place. Further, the caterpillar device 13 is in a position indicated by a chain line in FIG. 2 when the track traveling device 12 is standing, but when the track traveling device 12 is in a lying state, the caterpillar device 13 projects outward as indicated by a solid line. It is designed to be a little away from the location. As described above, when the work vehicle 1 travels on the track by the track travel device 12, the work vehicle 1 can travel with the caterpillar device 13 in a lifted state, and therefore, the work vehicle 1 can be prevented from interfering with anything around the traveled track as much as possible.

  The upper swing body 6 uses the swing body 15 as a base. A mast 16 is erected on the upper surface of the center of the swivel body 15 and an operator room 17 is provided next to it. A counterweight 18 is detachably mounted on the rear side of the turning body 15. By mounting the counterweight 18, it is possible to stably lift and turn even when lifting heavy objects. Further, as is apparent from FIG. 2, the lower surface of the upper swing body 6, that is, the swing body 15, unlike the normal hydraulic power shovel body, the lower surface is set higher than the upper surface of the home. Sometimes it does not interfere with the home.

  As shown in FIG. 4, the mast 16 includes an outer cylinder 16a and an inner cylinder 16b, and is erected on the turning body 15 by the inner cylinder 16b. In the inner cylinder 15b, a mast cylinder 20 is mounted with one end fixed to the inner cylinder 16b and the other end fixed to the outer cylinder 16a. The outer cylinder 16a is vertically moved with respect to the turning body 15 using the inner cylinder 16b as a guide. Slide movement is possible. And the bracket 21 is provided in the upper end part of the outer cylinder 16a, the bracket 22 is provided in the lower end part, and the telescopic arm 7 is pivotally supported by the bracket 21. For this reason, the telescopic arm 7 can also move up and down with respect to the turning body 15.

  The telescopic arm 7 has a fixed outer arm 7a and a movable inner arm 7b. A bracket 23 and a bracket 24 are provided at the base end of the outer arm 7a. The bracket 23 is pivotally supported by the bracket 21 of the mast 16. Yes. The bracket 24 is connected to the bracket 22 of the mast 16 by an arm hoisting cylinder 26. For this reason, the telescopic arm 7 can be raised and lowered with respect to the mast 16, that is, the turning main body 15, and can move up and down. The outer arm 7a and the inner arm 7b are connected by an arm telescopic cylinder 27 provided in the arm, and the inner arm 7b can be expanded and contracted with respect to the outer arm 7a by operation of the cylinder.

  The gripping device 8 is pivotally attached to the tip of the telescopic arm 7, that is, the tip of the inner arm 7b, and is connected via a link 31 by a vertical swing cylinder 30 pivotally supported by the inner arm 7b. For this reason, the gripping device 8 can swing up and down. The gripping device 8 includes left and right swinging portions 33, a rotating portion 34, and a gripping portion 35.

  The left / right swinging portion 33 includes a bracket 39 attached to the bracket 37 so as to be able to swing left and right around a pin 38, and a pair of left and right swing cylinders 41, 42 attached to the left and right of the brackets 37, 39. Then, by extending one of the left and right swing cylinders 41 and 42 and simultaneously contracting the other, the bracket 39 swings and swings left and right.

  The rotating part 34 includes an outer ring 44 attached to the bracket 39, an inner ring (not shown) which is rotatably attached to the inner periphery of the outer ring 44 and has an internal gear, a rotation motor 46 attached to the bracket 39, A pinion (not shown) is attached to the output shaft of the rotary motor 46 and meshes with the internal gear of the inner ring, and a turning frame 47 fixed to the inner ring.

  The grip portion 35 is fixedly attached to both sides of the revolving frame 47, a fixed plate 49 attached to the lower portion of each side plate 48, and a movable portion attached to the top of each side plate 48 via a link mechanism 50. The claw 51 and the opening / closing gripping cylinder 52 of the movable claw 51 are configured. Then, by operating the gripping cylinder 52, the structural members of the structure can be gripped one by one by the fixed pawl 49 and the movable pawl 51. The link mechanism 50 is rotatably connected to the side plates 48 by pins 54 and 55, and is rotatably connected to the tips of the links 56 and 57 by pins 58 and 59, respectively. Further, the fixed claw 49 and the movable claw 51 are provided with a notch 61 for gripping a square material, and an adapter 63 for H steel which is a gripping jig can be attached. For this reason, both the steel pillar and the beam can be reliably gripped. If the adapter 63 is adapted to the type of constituent member that holds the adapter 63, the adapter 63 can be reliably held regardless of the type of constituent member.

  Specific values for the vertical length of the mast 16, the arm undulation angle of the telescopic arm 7, the arm telescopic length, the left / right swing angle, the vertical swing angle, and the rotation angle in the gripping device 8 are as shown in FIG. 4. Yes.

  A method for constructing a structure using the work vehicle 1 and the track running vehicle 2 described above will be described. First, the installation process of the work vehicle 1 will be described. As described above, since the work vehicle 1 can travel on the track by using the track traveling device 12, the work vehicle 1 is not located in the station premises where the track is dense and the work vehicle 1 is difficult to unload. The work vehicle 1 is positioned so that the caterpillar device 13 straddles the track from a place with a relatively large space such as a little away. Thereafter, the track traveling device 12 is erected so as to protrude downward from the caterpillar device 13 as shown in FIG. In this way, the work vehicle 1 enters the track, and from there, the track traveling device 12 self-travels to a predetermined position, and stops when it reaches the predetermined position.

  When the work vehicle 1 stops at a predetermined position, the caterpillar device 13 is protruded in the direction of the arrow in FIG. 2 and the track traveling device 12 is laid down and separated upward from the track. As a result, the caterpillar device 13 is grounded to the ground as shown in the figure, so that the work vehicle 1 is installed and fixed in the grounded state. In addition, as shown in FIG. 2 etc., if the work of line lining is performed in advance, and sleepers, thick corners, etc. are spread and cured under the caterpillar device 13 which is the ground contact surface, a uniform reaction force will be generated during lifting. It is preferable because it is easy to obtain and safe against turning operation and the like and does not damage the track.

  Next, the carrying-in process of the structural member of a structure is demonstrated. A structural member such as a steel column C is loaded on the rail car 2 at a production factory or the like. As with the work vehicle 1, the gauge land carriage 2 also enters the gauge land carriage 2 on a track adjacent to the track on which the work vehicle 1 travels from a place with a relatively large space outside the station, and from there, the work vehicle 1 The vehicle travels to a predetermined position near the installation position and stops when it reaches the predetermined position. When the track carriage 2 stops at a predetermined position, the track traveling device 12 is laid down and separated upward from the track as shown in FIG. As a result, the track carriage 2 is grounded with tires as shown in the figure, and is installed and fixed in the grounded state. During train operation, the trolley line is energized from the power transmission station via a feeder and the like, and is transmitted to the train via a pantograph or the like. It takes about 30 minutes each to stop or start energization of this feeder, and when working in an area where the train stoppage time is only about 3 hours like the metropolitan area, There is a problem of loss of time required to stop or start energization. However, the process so far, which is the preparation stage of the construction work, can be performed without stopping the electricity transmitted to the feeder, as will be described in detail later.

  Next, the steps from the loading of the structural members to the mounting will be described with reference to the operation diagram shown in FIG. (1) shown in FIG. 1 shows a lifting process of structural members of the structure. The gripping cylinder 52 of the gripping device 8 of the work vehicle 1 is operated to fix the steel column C to the fixing claw 49 of the gripping portion 35. Grip directly with the movable claw 51. Then, the mast cylinder 20 is actuated to slide the outer cylinder 16a of the mast 16 upward, the arm hoisting cylinder 26 is actuated to raise the telescopic arm 7, and the vertical swing cylinder 30 is actuated to actuate the grip 35. Shake and lift. (2) shows a moving process in which the component member is moved to a position just above the position where the component member is attached. By turning the upper swing body 6 while holding the steel column C substantially horizontally by the fixed claw 49 and the movable claw 51, The steel column C is moved horizontally. In this way, since it can be carried from the lifting place under the trolley line through the bottom of the trolley line, as described in the background art, unlike the case where the steel frame is suspended and moved by a crane etc. There is no need to relocate or replace the trolley wire. (3) shows a mounting process of the constituent members. In a state where the steel column C is gripped, the rotary motor 46 of the rotating unit 34 is operated to rotate the gripping portion 35, and the direction of the steel column C is changed from the horizontal direction to a predetermined direction. Change to the vertical direction (vertical member changes to vertical direction, horizontal member changes to horizontal direction), and the arm telescopic cylinder 27 is operated to expand and contract the telescopic arm 7 or the rotary motor 46 is operated to grip. Rotating the part 35 or operating the up and down swing cylinder 30 and the left and right swing cylinders 41 and 42 to swing the left and right swing part 33 to constitute a component on a foundation pile previously set at a predetermined position Installed with vertical adjustment (vertical adjustment) and horizontal adjustment (horizontal adjustment), and fixed with bolts.

  As described above, the steel column C of the first node is erected and joined to the existing foundation pile. If necessary, the steps (1) to (3) are repeated a predetermined number of times in the same manner as described above to The pillar of the 1st node which is a direction member is built. After that, a structure is constructed by a laminating method so that it is bridged between the pillars where the first joint beam, which is a transverse member, is built. Alternatively, it may be constructed by a built-in escape construction method or folding screen construction method so that two pillars are built and a beam is passed between them, and a longitudinal member and a transverse member are installed. The order of going is arbitrary. FIG. 6 shows an example in which the first node pillar is built on the foundation pile across the platforms by the above-described work, and the first node beam is built thereon.

  In addition, the construction of the structure above the first-node beam may be performed by the steel structure construction method described in Patent Document 1 described in the background art.

  Then, the components such as one column are segmented due to the weight and length, for example, the first column is segmented into 0 and 1 sections, and the 0th column is built on Continuing to build the first pillar, you can build the structure by repeating steps (1) to (3) regardless of the building order of the structural components. Good.

  In the construction method of the structure as described above, the work vehicle 1 has a total height of 1.2 m or less below the trolley wire when the arm 7 is lying down as shown in FIG. Even when the current stop operation is in progress, the work vehicle 1 can be made to enter the track, travel to the vicinity of a predetermined construction position, and the work to be installed there can be performed very easily. Even work with limited operation stop time can be done with little time loss. Further, as shown in FIG. 2, the work vehicle 1 has a lower surface of the upper swing body 6 that is higher than the height of the home floor surface. This eliminates the need for the watchman to check the back and saves work and time.

  As described above, the work vehicle 1 and the rail vehicle 2 as members used in the construction of the structure according to the embodiment of the present invention show a preferable configuration to the last. The configuration can be arbitrarily changed and modified as appropriate within the scope of the claims. In the above-described embodiment, the track carriage 2 is run on adjacent tracks so as to be close to each other. However, it is also possible to run on the same track and approach the front and rear in the running direction. Good. Furthermore, the structure constructed over the track and its constituent members are also examples, and are not necessarily limited to those illustrated.

1 is an overall front view of a self-propelled work vehicle, a rail-carriage truck, and the like viewed along a platform according to an embodiment of the present invention. It is an enlarged front view which shows a self-propelled work vehicle same as the above. It is an enlarged plan view which shows a self-propelled work vehicle same as the above. It is an enlarged view which shows the holding | gripping apparatus of the front-end | tip direction from the mast erected in the upper revolving body of a self-propelled work vehicle same as the above. It is an enlarged side view which shows a self-propelled work vehicle same as the above in the state of FIG. It is an operation explanatory view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Self-propelled work vehicle 2 Railroad trolley 5 Lower traveling body 6 Upper turning body 7 Telescopic arm 8 Gripping device C Steel column

Claims (4)

A method of constructing a structure over a track,
A lower traveling body configured to be able to travel on the track and on land, an upper revolving body that can swivel with respect to the traveling body, a telescopic arm that can be raised and lowered with respect to the revolving body, and can be expanded and contracted; Stops energization of feeders for a self-propelled work vehicle provided with a gripping device that is provided at the tip of the arm and grips structural members without moving or replacing the trolley wire over the track During the work , the arm is put down on the track so that the separation distance from the trolley wire is 1.2 m or more, and it is installed on the track until it reaches a predetermined construction position. After completion of the operation to stop energization of the feeder, the components are picked up and lifted one by one by the gripping device of the work vehicle, and passed under the trolley wire while being gripped substantially horizontally. Carry in to the top of the position and Method for constructing a track over the structure, characterized in that attaching the can to a predetermined position in the predetermined direction.   The gripping device of the work vehicle has a fixed claw and a movable claw that operates with a gripping cylinder, and each of the fixed claw and the movable claw is provided with a notch for gripping a square material. The construction method of an over-the-rail structure according to claim 1, wherein a corner portion of the structural member is engaged with the notch when the structural member is lifted by lifting the structural member.   Load the required amount of structural components on a track rail truck that is configured to be able to run on the track and on the land. The construction method of an over-the-rail structure according to claim 1, wherein the construction member is carried in by moving the railroad carriage to near the installation position of the work vehicle.   Before completion of the operation to stop energization of the electric wire, the work vehicle and the rail vehicle are installed on the same track so that they approach the front and rear in the running direction, or run on the adjacent tracks. The construction method of an over-the-rail structure according to claim 3, wherein the construction is performed so as to approach each other.

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