JP2010242391A - Installation method for traveling rail and installation structure for the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an efficient installation method for traveling rails and the installation structure therefor, for eliminating troubles in a work process, such as insufficient adjustment of the height of the traveling rails due to a lack of time, preferably without requiring large-sized heavy machinery beyond necessity. <P>SOLUTION: The installation method for the traveling rail includes: a base-forming process of forming bases 11 and 21 on which a recession 22 for housing the traveling rail 3 therein is formed in the longitudinal direction; a traveling-rail temporary fixing process of housing the traveling rail in the recession and temporarily fixing the traveling rail using a rail temporary-fastening tool 4 for temporarily fixing the traveling rail in the recession; and a traveling rail permanent-fixing process of removing the rail temporary-fastening tool and then adjusting the height of the traveling rail to reset the traveling rail and injecting a curing resin 33. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a method of installing a traveling rail or a method of installing a traveling rail of a new line when removing a track of a business line that is currently in operation and replacing a traveling rail of an existing line, and an installation structure thereof. In particular, the present invention relates to an installation method and an installation structure of a traveling rail of a resin fixed track type that fixes the traveling rail with a cured resin.

  The resin-fixed track is generally fixed by injecting and curing cured resin in a recess formed along the longitudinal direction of the foundation made of reinforced concrete slab. Unlike the case where it is fixed to the sleepers, the running rail is continuously supported by the resin, so that the occurrence of vibration can be suppressed and there are many advantages such that there is no risk of knitting wear of the rail (see Patent Document 1). .

  And this resin fixed track installs the base part of the precast plate in which the concave part is formed along the laying direction of the traveling rail that has been manufactured in advance at the factory after the roadbed construction, and the traveling rail is accommodated in this concave part. Then, by injecting resin, it is possible to use a precast type method to install the running rail, or to place concrete after the roadbed work to install the foundation, and similarly to accommodate the running rail in the recess and inject the resin It can also be constructed by the on-site construction type method of installing the traveling rail.

However, in the former precast method, the load on the foundation is heavy, so large heavy machinery is required when installing the foundation, workability is poor, and schedule adjustment to secure heavy machinery and human resources This requires unnecessary labor.
Further, in the latter on-site construction method, time is required for any of roadbed work, concrete placing and resin hardening. For this reason, even when changing the existing track where the traveling rail is fixed to sleepers with dog nails, etc. that are currently in service, to the resin-fixed track, or when replacing the traveling rail of the existing resin-fixed track, the time of each work process It is necessary to carry out construction in a short time during the operation stoppage at night, for example, by omitting the operation little by little. Therefore, not only does it not take enough time for unevenness correction and tightening during roadbed work, but also for curing the concrete, it also does not leave adjusting the height of the running rail .

JP 2003-268701 A

  Therefore, it eliminates problems in work processes such as insufficient height adjustment of the traveling rail due to lack of time, and efficient installation of the traveling rail, which preferably does not require larger heavy machinery than necessary. It is an object to provide a method and an installation structure thereof.

  That is, in the method for installing the traveling rail according to the first aspect of the present invention, there is provided a base portion forming step for forming a base portion in which a concave portion for housing the traveling rail is formed along the longitudinal direction; A temporary rail fixing step for temporarily fixing the traveling rail by a rail temporary fastener that is housed in the concave portion and temporarily fixes the traveling rail in the concave portion, and after removing the rail temporary fastener, And a running rail main fixing step of fixing the running rail by injecting a cured resin into the recess by adjusting the height and re-installing the running rail.

  According to a second aspect of the present invention, in the base portion forming step, a rectangular column-shaped trough in which a concave portion for accommodating the traveling rail is formed along the longitudinal direction is provided with a groove corresponding to the bottom portion of the trough. It is installed in the groove of the foundation block having the formed block part and the reinforcing bar where concrete is placed in a subsequent process, and is embedded in the trough and suspended from the lower surface in the traveling rail temporary fixing process. An anchor bolt is inserted into a hole formed in the base block to fill the groove with mortar, and then the running rail is housed in a recess, and the temporary rail fastener is protruded into the recess. By fixing with a bolt, the traveling rail is temporarily fixed, and the foundation block is controlled between the traveling rail temporary fixing step and the traveling rail main fixing step. It is characterized by having a concreting step of pouring the door.

  The invention according to claim 3 is the method for installing the traveling rail according to claim 2, wherein the block portion has a longitudinally-reverse inverted taper shape in which a boundary with the reinforcing bar portion is inclined. It is said.

  According to a fourth aspect of the present invention, in the method for installing the traveling rail according to the second or third aspect, the trough is mounted in the foundation portion forming step in a state where the frame bodies are respectively installed on both sides of the foundation block. It is characterized in that the concrete is placed and placed in the concrete placing step.

  The invention according to claim 5 is a traveling rail installation structure installed by the traveling rail installation method according to any one of claims 2 to 4, wherein the trough is installed in a groove of the foundation block. The trough and the base block are fixed together with the fixture by the mortar filled in the groove, and the traveling rail adjusted in height is fixed by the cured resin injected into the recess of the trough. It is characterized by having.

  According to the traveling rail installation method according to claims 1 to 4, since the traveling rail temporary fixing step is provided between the base portion forming step and the traveling rail main fixing step, the rail temporary fastener in the traveling rail temporary fixing step. By stopping the work at the stage where the running rail is temporarily fixed by the above and restarting the work again, the running rail can be permanently fixed in the running rail main fixing process. For this reason, even when an existing track that is currently in operation is constructed at night, for example, the traveling rail is temporarily fixed on the first day and the traveling rail is permanently fixed on the second day. This can be done separately. As a result, a sufficient amount of time can be taken to adjust the height of the traveling rail in the roadbed work or the traveling rail main fixing process, and it is possible to prevent problems due to time constraints in each process. Furthermore, even if the road surface or the like sinks due to the foundation part formed in the foundation part forming process, the height of the traveling rail is surely adjusted by adjusting the height of the traveling rail in the traveling rail main fixing process. Can be adjusted.

In particular, according to the traveling rail installation method according to claim 2, in the foundation portion forming step, the trough in which the concave portion for accommodating the traveling rail is formed along the longitudinal direction corresponds to the bottom portion of the trough. Since it installs in the groove | channel of the foundation block which has the block part in which the groove | channel was formed, and the reinforcement arrangement | positioning part where concrete is laid in a post process, the load of the foundation block at the time of installation can be reduced. In addition, since the troughs can be installed and connected to the grooves of the foundation block, alignment between the troughs is easy, and it is sufficient if the troughs can accommodate the traveling rails, so that the weight can be easily reduced. . In other words, the pre-cast trough and the pre-cast basic block are used in combination, and the basic block is configured by the block portion and the reinforcing bar portion, so that the maximum weight can be reduced.
Therefore, the traveling rail can be installed efficiently without requiring a heavy machine larger than necessary.

Further, in the running rail temporary fixing step, the fixing tool can be fixed together with the trough and the basic block by filling the mortar after inserting the rod-shaped fixing device for fixing the temporary rail fastener from the recess into the basic block. Therefore, the traveling rail can be stably fixed by the rail temporary fastener fixed by the fixing tool, and the vehicle or the like can be stably driven after the traveling rail temporary fixing step.
In addition, since the concrete placing step is provided between the traveling rail temporary fixing step and the traveling rail main fixing step, the curing of the concrete can be performed without time constraints.

  Further, according to the method for installing the traveling rail according to claim 3, since the block portion has a vertical cross-section inverse taper shape in which the boundary with the reinforcing bar portion has an inclination, each reinforcing bar portion positioned between the block portions has After the cast concrete has hardened, compressive stress acts on the boundary surface between the block part and the reinforcing bar part due to the load received by the foundation block part consisting of the block part and the reinforcing bar part. Can be prevented, and the load can be distributed to the concrete in the reinforcing bar.

  Furthermore, according to the method for installing the traveling rail according to claim 4, the trough and the foundation are installed by installing the trough in the foundation forming step in a state in which the frames are respectively installed on both sides of the foundation block. The load acting area of the block can be widened, the load per unit area acting on the road surface can be reduced, and the road surface can be prevented from sinking. Furthermore, it is possible to prevent the entire load from acting on only the concrete placed in the concrete placing step and to increase the strength of the foundation portion.

  According to the traveling rail installation structure described in claim 5, since the trough is installed in the groove of the foundation block, each member is reduced in weight so that the traveling rail can be efficiently installed without requiring a larger heavy machine than necessary. Since the trough and the base block are fixed by mortar and the traveling rail is fixed by the cured resin, the vehicle can travel stably.

It is explanatory drawing of one Embodiment of the installation method of the traveling rail which concerns on this invention, Comprising: After driving | running | working roadbed work, such as rail removal of an existing business line, excavation, and before moving to a foundation formation process It is a cross-sectional schematic diagram of the installation structure of a rail. It is a cross-sectional schematic diagram of the traveling rail installation structure after the foundation part formation process is completed. FIG. 6 is a schematic cross-sectional view of a traveling rail installation structure after the traveling rail temporary fixing step is completed. It is a cross-sectional schematic diagram of the installation structure of the traveling rail after a concrete placement process is completed. It is sectional drawing of the installation structure of a traveling rail before pavement by concrete is completed and it transfers to a traveling rail main fixing process. FIG. 5 is a cross-sectional view of the traveling rail installation structure after the traveling rail main fixing step is completed. It is a top view which shows tomographically the installation method of the said embodiment toward the left side from the right side in a figure. It is the alpha-alpha sectional view of FIG. It is sectional drawing of the principal part seen by the (beta) -beta line of FIG. It is a principal part sectional drawing of the installation structure of a traveling rail after a traveling rail temporary fixing process is completed similarly. It is the elements on larger scale of FIG. It is a top view of FIG. The trough height adjustment jig | tool of FIG. 10 is shown, (a) is a longitudinal cross-sectional view, (b) is a cross-sectional view. The rail temporary fastener of FIG. 11 is shown, (a) is a longitudinal cross-sectional view, (b) is a cross-sectional view. FIG. 4 is a longitudinal sectional view in a recess 22 when pipes 20 are installed on both sides of a running rail 3.

  Next, an embodiment of the traveling rail installation method according to the present invention, in which the track of the currently operating business line is removed and the traveling rail of the existing line is installed will be described with reference to FIGS.

  First, before the installation work of the running rail is started, a rectangular column-shaped trough 21 in which a recess 22 for storing the running rail 3 is formed in advance along the longitudinal direction, and a block portion 11a made of concrete with reinforcing bars installed therein. And a foundation block 11 in which reinforcing bars 11b where the reinforcing bars 17 are exposed are alternately provided in the longitudinal direction.

  The basic block 11 is formed in a longitudinal cross-section reverse taper shape in which the block portion 11a is larger in the longitudinal direction along the boundary with the reinforcing bar portion 11b and on the surface side than the bottom surface side, and on the surface of the block portion 11a in the longitudinal direction Grooves 12 for inserting the bottom of the trough 21 are formed in two places at intervals in the width direction, and on both sides of the base block 11, a grooved steel (for connecting the block portion 11a and the reinforcing bar portion 11b, respectively) A frame body 14 is fastened by bolts. Thus, the installation time is also shortened by assembling the foundation block 11 in advance with the channel steel 14.

  In addition, notch grooves 23 that are one step shallower than the recesses 22 are fixed along the recesses 22 in order to place the rail temporary fasteners 4 that temporarily fix the traveling rails on both side walls of the recesses 22 of the troughs 21. It is formed at intervals. The trough 21 is embedded with an anchor bolt 40 having an upper end portion projecting into each notch groove 23 and a lower end portion depending from the bottom surface of the trough 21. On the other hand, a hole 15 into which each anchor bolt 40 is inserted is formed in the block portion 11 a of the foundation block 11. Further, on both sides of the trough 21, screw cylinders 26 each having a hole cut in a horizontal direction are embedded.

Next, the traveling rail installation method of this embodiment will be described in sequence. First, the concrete pavement of the existing business line is excavated during the first day.
Next, as shown in FIG. 1, the existing traveling rail is removed at night after passing the last train, and the crushed stone 82 is spread on the chestnut 81 exposed by excavating the roadbed, and then tightened. The roadbed work is performed by spreading the sand 83 and tightening it.

  Next, as shown in FIG. 2, the base block 11 is transferred to the foundation forming step, and the foundation block 11 assembled by the grooved steel 14 is suspended and installed on the road surface on which the roadbed construction is performed. The troughs 21 are respectively suspended in the two grooves 12 and the anchor bolts 40 are inserted and installed in the holes 15 of the foundation block 11 (the foundation section forming process).

  Next, as shown in FIGS. 3 and 10 to 15, the process proceeds to the traveling rail temporary fixing step, and the rail temporary fastener 4 for temporarily fixing the traveling rail 3 to the trough 21 is cut by the anchor bolt 40. While fixing to the notch groove 23, the trough height adjusting tool 5 is attached between the both sides of the trough 21 and the reinforcing bar 11b of the foundation block 11, respectively.

  Here, the trough height adjuster 5 is composed of an angle steel 51 and two pairs of bolts 52, 53. The bolt 52 is screwed into the screw cylinder 26 from the horizontal through hole of the angle steel 51. Then, the bolt 53 is screwed into a nut 53 a welded to the angle steel 51 in accordance with the vertical through hole of the angle steel 51. Then, by rotating the bolt 53, the trough 21 is lifted from the groove 12 and fixed at a desired height (horizontal level).

  Next, after the positioning of the trough 21 is completed, the trough 21 is placed on the block portion 11a provided at intervals in the base block 11 by injecting the super-hard mortar 31 into the groove 12 and curing for several hours. Installed.

  Therefore, next, a base plate 61 made of a steel plate and a height adjustment pad 62 are laid on the recess 22 of the trough 21, and the traveling rail 3 is suspended on the height adjustment pad 62. Further, wedges 49 are driven into both sides of the traveling rail 3, and the nut 44 is screwed and fastened to the anchor bolt 40 through the rail temporary fastener 4. As shown in FIG. 14, each rail temporary fastener 4 is formed by integrally forming a U-shaped bracket 41 including a bottom plate 41 a and both side plates 41 b and a back plate 42, and the bottom plate 41 a is used for anchor bolts 40. A through hole 410 is formed. And the traveling rail 3 is temporarily fixed by arrange | positioning each round steel 43 between each rail temporary fastener 4 and the traveling rail 3 (above, traveling rail temporary fixing process), daytime of the 2nd day Can pass through the vehicle.

  Next, as shown in FIG. 4, during the second day, concrete 71 is placed on the reinforcing bar 11 b between the block parts 11 a of the foundation block 11 (concrete placing process), and after curing, the grooved steel 14. , And wire mesh 74 (see FIG. 7) is arranged between the troughs 21 and around both sides of the trough 21, and as shown in FIG. 5, paved so as to be equal to the height of the upper surface of the trough 21, as shown in FIG. To do. At that time, when the pavement with the concrete 75 has a connecting portion for connecting the traveling rail 3 in the longitudinal direction, the pavement is performed excluding the connecting portion.

  Next, on the night of the second day, the process proceeds to the traveling rail main fixing process, the rail temporary fastener 4 and the wedge 49 are removed, and the traveling rail 3, the base plate 61, and the height adjustment pad 62 are removed, and the trough 21 The recess 22 is cleaned and an adhesive is applied to the bottom surface of the recess 22. As this adhesive, an epoxy resin to which a curing agent is added is preferably used. When a polyamine is added as a curing agent to a liquid prepolymer containing two or more epoxy groups, it cures at room temperature and exhibits a strong adhesive force. If present, there is a characteristic that it hardly shrinks even after curing, does not crack even if the thickness of the adhesive layer is large, and does not decrease the adhesive force. The bottom surface of the recess 22, a vibration absorbing plate 63 and a height adjusting pad 64 described later. Can be securely bonded to each other.

  Thereafter, as shown in FIGS. 6 and 9, a vibration absorbing plate 63 is laid on the bottom of the recess 22, and the upper portion of the traveling rail 3 is elastic on the vibration absorbing plate 63 so that the height is a predetermined level. A height adjustment pad 64 made of a resin plate is laid. Note that the height adjustment pad 64 is formed in a rectangular plate shape with the vibration absorbing plate 63 extending over the entire length in the longitudinal direction of the recess 22, and a plurality of the height adjustment pads 64 are arranged in the longitudinal direction of the recess 22. It is laid with a certain gap between them.

  In the present embodiment, the height dimension of the level that should be the upper surface of the traveling rail 3 from the upper surface of the vibration absorbing plate 63 is measured at an appropriate interval in the laying direction of the rail 3 to obtain the height dimension of the measurement location. The corresponding height adjustment pads 64 are placed on the vibration absorbing plate 63 at intervals along the lower surface laying position of the traveling rail 3. At that time, as the height adjustment pad 64, a plurality of ones having a thickness of 1 mm, 2 mm, 3 mm and 5 mm are prepared and combined to be stacked at a predetermined height.

  Thereby, the thickness adjustment pad 64 need not be processed each time, and the positioning of the rail 3 can be adjusted accurately and easily. Further, since the height adjustment pad 64 is made of an elastic resin plate, it not only has vibration absorption characteristics and sound absorption characteristics, but is easily compatible with polyurethane described later.

  Next, the traveling rail 3 is laid on the height adjustment pad 64. At that time, a pipe 20 made of vinyl chloride is placed on both sides of the web 3a of the traveling rail 3 by a spacer / horizontal position adjusting ring 37 and a wire or plastic band 38 wound at an appropriate interval (see FIG. 15). Install in the attached state. Next, a plastic wedge 39 is driven between the horizontal position adjusting ring 37 attached to the pipe 20 and the side wall of the recess 22 to adjust the horizontal position of the traveling rail 3. Take away. Thereafter, wedges 49 are driven into both sides of the lower flange 3 b of the traveling rail 3. The pipe 20 can be used as a storage pipe for electric wires and optical fibers necessary for vehicle operation.

  Next, cork powder is mixed with 1 to 10% by mass of cork powder in the recesses 22 of each trough 21, and the polyurethane 33 having self-leveling properties to which a curing agent is added, preferably a mixture of a polyisocyanate prepolymer and an amine. The polyurethane 33 mixed with 1 to 10% by mass is injected. At that time, as a pretreatment for injecting the polyurethane 33, a primer is sprayed to increase the adhesive strength of the polyurethane 33. The primer is used by dissolving polyisocyanate in a solvent in order to increase the adhesive strength of the polyurethane 33 on the wall surface of the concave portion 22, the vibration absorbing plate 63, the height adjusting pad 64 and the rail 3, and more preferably methylene, What dissolved about 20 mass% of 4,4'-diphenylmethane diisocyanate in methylene chloride etc. is used.

  Also, the polyurethane 33 is injected from the wall surface of the recess 22 located outside the base block 11 in the width direction, that is, from between the wall surface of the recess 22 located outside the travel rail 3 and the travel rail 3. Then, it is located on the opposite side of the traveling rail 3, that is, on the inner side of the traveling rail 3, through a gap formed between the bottom lower surface of the traveling rail 3 and the vibration absorbing plate 63 or the height adjustment pad 64. It enters even between the walls of the recess 22.

  At that time, the polyurethane 33 is injected until the surface level of the polyurethane 33 between the wall surface of the recess 22 located outside the traveling rail 3 and the traveling rail 3 becomes the same height as the upper surface of the trough 21. Even in this case, the surface level of the polyurethane 33 entering between the traveling rail 3 and the wall surface of the recess 22 located inside the traveling rail 3 can enter only to a position considerably lower than the upper surface of the trough 21. Therefore, polyurethane 33 is added also between the traveling rail 3 and the wall surface of the recess 22 located inside the traveling rail 3 so that the surface level of the polyurethane 33 is positioned at the lower end of the head of the traveling rail 3. Thus, the polyurethane 33 is filled so as to function as a wheel flange way.

  As a result, not only both side portions of the traveling rail 3 but also the lower portion of the traveling rail 3 between the height adjustment pads 64 is filled with the polyurethane 33. Therefore, the polyurethane 33 is cured and cured to vibrate in the recess 22. While the absorption plate 63 and the height adjustment pad 64 are fixed, the entire surface of the web 3a and the lower flange 3b is also firmly fixed by polyurethane over the entire length of the concave portion 22, and the traveling rail 3 itself is firmly fixed. The vibration and noise generated in the are effectively suppressed. After that, by removing the trough height adjuster 5, the main fixing of the traveling rail is completed (the traveling rail main fixing step), and the vehicle can pass through the day on the third day.

  Further, if necessary, the traveling rail 3 is connected by welding, the connecting portion is paved with concrete 75, and the connecting portion of the traveling rail 3 is also fixed to the trough 21 in the same manner as the main fixing step of the traveling rail described above.

  In the traveling rail installation structure according to the present invention constituted by the above-described method, the crushed stone 82 is spread and compacted on the chestnut 81, and the sand 83 is spread and compacted via a polypropylene sheet thereon. A foundation block 11 is installed on the roadbed builder in the direction in which the traveling rail 3 is laid.

  A trough 21 is suspended in each of the foundation blocks 11 in two grooves 12 formed in the longitudinal direction thereof, and at the joint portion between the trough 21 and the foundation block 11, the troughs 21 are provided on both sides of the trough 21. The trough 21 is installed in a state where the trough 21 is floated from the groove 12 of the foundation block 11 by attaching the height adjusting tool 5.

  Then, the mortar 31 is filled between the trough 21 and the groove 12 in a state where the anchor bolts 40 are suspended from the bottom surface of the trough 21 and inserted into the holes 15 formed in the foundation block 11, thereby 21 is fixed to the foundation block 11 at a desired horizontal level, and the anchor bolt 40 is firmly fixed to the trough 21 and the foundation block 11.

  Further, in the foundation block 11, the block portion 11a and the concrete 71 placed on the reinforcing bar portion 11b are alternately arranged in the direction in which the traveling rail 3 is laid. Each of the reinforcing bars 11b has an inclined boundary surface with the concrete 71 of the reinforcing bar 11b by being formed in a cross-section inverse taper shape having a larger surface side than the bottom surface side in the laying direction.

  In addition, a vibration absorbing plate 63 is continuously attached to the recess 22 of the trough 21 in the rail laying direction. On the vibration absorbing plate 63, the height adjustment pad 64 is mutually attached in the laying direction of the traveling rail 3. A plurality of pieces are laid with a certain gap between them, and the running rail 3 is installed on both sides of the height adjusting pad 64 with the pipes 20 made of vinyl chloride. In the state where the wedges 49 are driven into the recesses 22, the recesses 22 are filled with polyurethane 33 having self-leveling properties. Thereby, the polyurethane 33 is filled not only on both sides of the traveling rail 3 and around the pipe 20 but also between the lower surface of the traveling rail 3 and the vibration absorbing plate 63 between the height adjustment pads 64. For this reason, the height adjustment pad 64 is fixed to the bottom surface of the recess 22, and the traveling rail 3 itself is also firmly fixed by the entire surface of the web 3 a and the lower flange 3 b being continuously restrained by polyurethane over the entire length of the recess 22. In addition, vibrations and noises generated during the traveling of the vehicle are effectively suppressed, and there is no risk of uneven wear of the traveling rail 3.

  As described above, according to the traveling rail installation method and the installation structure of the present embodiment, the traveling rail temporary fixing step is provided between the foundation forming step and the traveling rail main fixing step. When the traveling rail is temporarily fixed by the rail temporary fastener, the operation is interrupted and the operation is resumed again, whereby the traveling rail can be permanently fixed in the traveling rail main fixing step. For this reason, even when an existing track that is currently in operation is constructed at night, these processes can be performed in a plurality of stages. As a result, it is possible to adjust the height of the traveling rail 3 in the roadbed work or the traveling rail main fixing process over a sufficient amount of time, and it is possible to prevent the occurrence of problems due to time restrictions in each process. Furthermore, even if the roadbed sinks due to the foundation block 11 and the trough 21 formed in the foundation portion forming process, the height of the traveling rail 3 can be reliably adjusted in the traveling rail main fixing process.

  Further, the precast plate trough 21 manufactured in advance is suspended in the groove 12 of the block portion 11a formed at a distance from the base block 11 of the precast plate manufactured in advance, and the trough height adjuster 5 is interposed therebetween. By mounting, the trough 21 is positioned at a horizontal level in a state where the trough 21 is floated from the groove 12, and then mortar is injected into the groove 12 between the trough 21 and the foundation block 11 to install the trough 21 on the foundation block 11. In the subsequent process, by placing concrete in the reinforcing bar portion 11b between the block portions 11a and integrating the base portion and the trough 21, a base portion that can accommodate the traveling rail 3 can be formed. Therefore, when the foundation is formed on the road surface on which the roadbed work has been performed, the work can be efficiently performed without requiring an unnecessarily large heavy machine.

  Furthermore, the foundation block 11 is constituted by a precast block portion 11a and a reinforcing bar portion 11b made of a reinforcing bar 17 embedded in advance between the block portions 11a, and concrete is placed in the reinforcing bar portion 11b in a subsequent process. The anchor bolt 40 projecting downward is also embedded in the precast trough 21, and the anchor bolt 40 is inserted into the hole 15 formed in the foundation block 11 to place concrete. It is integrated. For this reason, while being able to obtain the performance equivalent to the conventional construction method which made the whole precast, the ratio of a precast member can be reduced in a base part, the load at the time of installation can be reduced, and work efficiency can be raised further.

  In addition, the base block 11 is connected in advance to a plurality of block portions 11a formed on both sides of the base block 11 with a gap steel 14 at intervals. For this reason, the installation time of the foundation block 11 can be shortened, the load acting area of the trough 21 and the foundation block 11 can be widened, the load per unit area acting on the roadbed can be reduced, and the roadbed subsidence can be suppressed.

  In addition, since the trough 21 is installed in the groove 12 of the foundation block 11, the trough 21 can be connected in the groove 12 of the foundation block 11, so that the alignment between the troughs 21 is easy. The trough 21 is also sufficient if it has a width that can accommodate the traveling rail 3, and can be easily reduced in weight. Similarly, a plurality of foundation blocks 11 can be provided and connected in the direction in which the traveling rail 3 is laid.

  In addition, the foundation block 11 has an inclined boundary surface between the block portion 11a and the concrete 71 of the reinforcing bar portion 11b by forming the block portion 11a in a reverse cross-tapered shape on the surface side from the bottom surface side in the laying direction of the rail 3. And the reinforcing bar 17 embedded at the time of manufacturing the block portion 11a is protruded from the reinforcing bar portion 11b. Therefore, after the concrete 71 of the reinforcing bar portion 11b is hardened, the inclination due to the load acting on the foundation block 11 is described above. By generating a compressive stress on the boundary surface by the boundary surface and the reinforcing bar 17 to prevent boundary surface peeling and increasing the shear strength, the load can be distributed also to the concrete 71 of the reinforcing bar 11b.

  Further, on the vibration absorbing plate 63 laid continuously in the recess 22 for accommodating the traveling rail 3 of the trough 21, the height adjusting pad 64 has a gap between each other in the laying direction of the traveling rail 3. By laying a plurality of sheets and filling polyurethane 33 having self-leveling properties, the polyurethane 33 is not only on both sides of the traveling rail 3 and around the pipe 20 but also on the lower portion of the traveling rail 3 between the height adjustment pads 64. Filled. For this reason, the height adjustment pad 64 can be fixed to the bottom of the recess 22, and the traveling rail 3 itself is also firmly fixed by the entire surface of the web 3 a and the lower flange 3 b being continuously restrained by the polyurethane 33 over the entire length of the recess 22. In addition, vibration and noise generated during the traveling of the vehicle can be effectively suppressed, there is no fear of uneven wear of the traveling rail 3, the life can be extended, and the ride comfort is high and the safety is high. Can be.

  Furthermore, since the polyurethane 33 is injected from one direction from between the wall surface of the recess 22 located on the outer side of the traveling rail 3 and the traveling rail 3, it is possible to suppress air contamination and the like. In addition to this, since the polyurethane 33 having self-leveling properties is used, the work efficiency can be increased because a horizontal surface can be obtained without leveling the upper surface separately. By mixing it, it is possible to effectively suppress vibrations and noises generated during traveling of the vehicle in combination with the height adjustment pad 64.

  In addition, since the pipes 20 are installed on both sides of the web 3a of the traveling rail 3, the traveling rail 3 can be fixed without using a large amount of polyurethane 33 resin, and wires and optical fibers necessary for vehicle operation can be accommodated. You can also

  In addition, this invention is not limited to the above-mentioned embodiment at all, For example, the reinforcement part 11b of the base block 11 may be comprised with raw materials other than the reinforcing bar 17, and also the trough 21 of the precast version The foundation block may not be formed by the trough 21 and the foundation block 11. Furthermore, in the above-described embodiment, the operation is interrupted between any of the basic part forming process, the traveling rail temporary fixing process, and the traveling rail main fixing process, although the work was performed on day and night on the 3rd. Is sufficient. Moreover, you may use for the installation method of the running rail of a new line, and in this case, although the removal of an existing line becomes unnecessary, a roadbed is excavated as needed and a roadbed construction is performed.

INDUSTRIAL APPLICABILITY The present invention can be used when removing a track of a business line that is currently in operation and replacing a traveling rail of an existing line, or when installing a traveling rail of a new line.

DESCRIPTION OF SYMBOLS 3 Running rail 4 Rail temporary fastener 5 Trough height adjuster 11 Foundation block 12 Groove 21 Trough 22 Recessed part 31 Super hard mortar 33 Polyurethane 40 Anchor bolt (fixing tool which fixes rail temporary fastener 4)

Claims (5)

A base portion forming step for forming a base portion in which a recess for storing the traveling rail is formed along the longitudinal direction;
A traveling rail temporary fixing step of temporarily fixing the traveling rail by a rail temporary fastener that houses the traveling rail in the recess and temporarily fixes the traveling rail in the recess;
After removing the rail temporary fasteners, adjusting the height of the traveling rail, re-installing the traveling rail, and fixing the traveling rail by injecting a cured resin into the recess, A running rail installation method comprising: In the foundation forming process,
A rectangular column-shaped trough in which a recess for storing the traveling rail is formed along the longitudinal direction, a block portion in which a groove corresponding to the bottom of the trough is formed, and a concrete placement in a post process Installed in the groove of the foundation block having
In the travel rail temporary fixing step,
Anchor bolts embedded in the trough and hanging from the lower surface thereof are inserted into holes formed in the base block to fill the grooves with mortar, and then the running rail is housed in the recesses, and the rail temporary By temporarily fixing the traveling rail by fixing the fastener with the anchor bolt protruding into the recess,
2. The traveling rail installation method according to claim 1, further comprising a concrete placing step of placing concrete on the foundation block between the traveling rail temporary fixing step and the traveling rail main fixing step.   The travel rail installation method according to claim 2, wherein the block part has a longitudinally tapered reverse taper shape in which a boundary with the reinforcing bar part has an inclination.   4. The concrete according to claim 2, wherein the trough is installed in the foundation forming step and the concrete is placed in the concrete placing step in a state where frames are respectively installed on both sides of the foundation block. Installation method of traveling rail as described in 4. A traveling rail installation structure installed by the traveling rail installation method according to any one of claims 2 to 4,
The trough is installed in the groove of the foundation block, the trough and the foundation block are fixed together with the fixture by a mortar filled in the groove, and the cured resin injected into the recess of the trough A traveling rail installation structure characterized in that a traveling rail having an adjusted height is fixed.

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