Track slab forming formwork and attachments for forming formwork

Abstract

To provide a molding flask for an orbital slab capable of efficiently realizing the production of an end scale slab generated by the deviation of projection intervals, projection positions and projection dimensions of projections in a concrete track bed in a short time at a low cost.SOLUTION: A molding flask 31 for an orbital slab is used for molding a slab 9 having each recessed part 13 fitted with each projection 3 provided at a concrete track bed 5. The molding flask 31 comprises: a pair of first side flasks 33, 33 arranged in a track gauge width direction X; and a pair of second side flasks 35, 35 arranged in a laying direction Y. The molding flask is used by combining these side flasks 33, 33, 35, 35 upon mold assembly. Each second side flask 35 is provided with convex molding part 37 for molding the recessed parts 13, in accordance with differences of projection intervals, projection positions and projection dimensions of the projections 3, capable of adjusting projection ranges, projection positions and projection quantities thereof.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a forming formwork and an attachment for the forming formwork used when forming a track slab having a slab plate, which is a precast concrete plate installed on a concrete track bed having cylindrical protrusions. [Background technology]

[0002] When laying tracks for bullet trains and the like, ballast tracks using track slabs have been developed and are being used in many sites, as they are less likely to sink when trains pass over them, and can significantly reduce maintenance costs. A ballast track using track slabs includes a track slab that is used in combination with a concrete roadbed that has cylindrical protrusions, and the horizontal movement of this track slab is regulated by the frictional force at the bottom of the track slab and the support force of the cylindrical protrusions that fit into the recesses provided at both ends of the track slab in the laying direction.

[0003] A track slab is, for example, configured by having a slab plate, which is a precast concrete plate having recesses on both ends in the laying direction, and a filling layer provided between the slab plate and the concrete track bed (see Patent Documents 1 and 2, etc.). Such track slabs are manufactured so that the size of the track slabs is as uniform as possible by making the projection intervals provided on the concrete track bed constant. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2020-41397 A [Patent Document 2] JP 2019-148120 A Summary of the Invention [Problem to be solved by the invention]

[0005] Although there are set tolerances for the spacing, position and dimensions of protrusions on concrete roadbeds, there are many cases where deviations exceed the tolerances. In such cases, since the slab slab side cannot be cut, the current situation is that minute deviations are dealt with by cutting or reconstructing the protrusion side, or a special formwork is created separately to form a cut slab slab that can accommodate the deviation.

[0006] However, for each location where a deviation exceeding the allowable value has occurred, a separate, dedicated forming formwork must be newly manufactured to fit that particular location, which is a major factor in lengthening the construction period and generating a large amount of material waste.

[0007] The present invention has been made in consideration of the above circumstances, and has an object to provide a forming formwork and an attachment for a forming formwork that enable efficient and economical formation of track slabs even when there is a discrepancy in the projection spacing, projection position or projection dimensions of the projections provided on the concrete track bed. [Means for solving the problem]

[0008] The present invention provides a formwork for a track slab that solves the above-mentioned problems, and is a formwork for forming a slab plate having a recess that fits with a protrusion provided in a concrete track bed, comprising: The forming formwork is a formwork comprising a pair of first side frames arranged in the gauge width direction and a pair of second side frames arranged in the laying direction, and these side frames are combined and used during assembly, The second side frame has ,before A convex molding portion for molding the concave portion is provided. 、 The protruding portion is capable of adjusting a protruding range, a protruding position, and a protruding amount in response to differences in the protruding interval, the protruding position, and the protruding dimension of the protrusions, Furthermore, the convex molding portion has a reference convex frame integral with the second side frame, which corresponds to a standard projection interval, projection position, and projection dimension of the projection of the concrete roadbed; and a plate-shaped adjustment attachment that is attached to the reference convex frame for use. It is characterized by:

[0009] According to the track slab forming form of the present invention, the convex forming part provided on the second side frame is configured so that its protrusion range, protrusion position and protrusion amount can be adjusted in response to the difference in the protrusion interval, protrusion position and protrusion dimension of the protrusion of the concrete track bed, so there is no need to cut or reconstruct the protrusion on site as in the past. Also, there is no need to create a dedicated forming form from scratch corresponding to the site as in the past. Therefore, it can be handled by only partially adjusting the configuration of the convex forming part of the existing standard forming metal frame, and it is possible to shorten the construction period of the track slab installation work and reduce material loss, making it possible to efficiently and economically form and install the track slab.

[0011] By adopting this type of track slab forming formwork, it is possible to use standard existing forming formwork as is, and simply attach a plate-shaped adjustment attachment to the reference convex frame of this forming formwork to easily form an end-of-slab slab that suits the site. This makes it possible to further shorten the construction period for track slab installation work by eliminating the effort and expense of creating a new dedicated forming formwork to form an end-of-slab slab.

[0014] In addition, in the track slab forming form of the present invention, the adjustment attachment To It is also preferable that the projections are manufactured based on the results of measurement of the projection spacing, projection positions, and projection dimensions of the concrete roadbed.

[0015] By adopting a forming form for track slabs of this type, even if work is in progress at the site, for example, the slab plate for the track slab can be produced in a factory in a short time based on instructions from survey results, making it possible to carry out the installation work of the track slab smoothly.

[0016] In addition, in the track slab forming form of the present invention, the adjustment attachment To A number of sets may be manufactured in advance to correspond to expected deviations in the protrusion spacing, protrusion positions and protrusion dimensions of the protrusions on the concrete roadbed, and these may be selected and used as appropriate to suit the conditions on site.

[0017] By adopting the track slab forming form of this type, it is possible to prepare multiple sets of end-of-the-road slab plates corresponding to the deviation before the track slab installation work. Therefore, it is only necessary to select and install the end-of-the-road slab plate suitable for the site, and the track slab can be installed smoothly as in the above-mentioned embodiment. This embodiment is effective when there is a certain tendency in the deviation of the projection spacing, projection position, and projection dimension of the projections of the concrete track bed.

[0018] In addition, the attachment for a forming form for a track slab in the present invention, which solves the above-mentioned object, is an attachment for a forming form for forming a slab slab having a recess that fits with a protrusion provided in a concrete track bed, The attachment is characterized in that it is a plate-shaped adjustment attachment of a predetermined thickness that is attached to the surface of a reference convex frame of a convex molding part that corresponds to the standard protrusion spacing, protrusion position and protrusion dimensions of the protrusions of a concrete roadbed.

[0019] According to the track slab forming form attachment of the present invention, the attachment is composed of a plate-like adjustment attachment of a predetermined thickness that is attached to the surface of the reference convex frame of the convex forming part that corresponds to the standard projection interval, projection position, and projection dimension of the projections of the concrete track bed, so that it is possible to easily form an end-sized slab slab suited to the site by simply using an existing standard forming die as is and attaching the forming form attachment of the present invention. Therefore, it is possible to effectively utilize existing standard forming dies, and to form the desired end-sized slab slab in a short time at less cost.

[0020] In addition, in the attachment for the forming form for track slabs of the present invention, the adjustment attachment may be prepared in advance in a number of different types with gradually differing thicknesses, and the corresponding type of adjustment attachment may be selected and used depending on the deviations in the projection spacing, projection position and projection dimensions of the projections on the concrete track bed.

[0021] By adopting this type of track slab forming formwork attachment, it is possible to roughly adjust the amount of protrusion by selecting and attaching an adjustment attachment with a thickness that is appropriate for the magnitude of the deviation in the projection interval, and further fine-tuning of the amount of protrusion can be handled by the construction tolerance or by fine adjustment during installation. Therefore, by simply preparing several types of adjustment attachments with different thicknesses, it is possible to handle most of the possible deviations in the projection interval.

[0022] In addition, in the attachment for the forming formwork of a track slab of the present invention, the adjustment attachment may be prepared in advance in multiple types to be attached to all or a portion of the surface of the reference convex frame to be attached, and the corresponding type of adjustment attachment may be selected and used depending on the deviations in the protrusion spacing, protrusion position and protrusion dimensions of the protrusions of the concrete track bed.

[0023] By adopting such an attachment for the forming formwork of a track slab, rough adjustment of the position and range can be made by selecting and attaching an adjustment attachment for position and range that is suitable for the deviation of the protrusion position or protrusion dimension, and further fine adjustment of the position and range can be made by using construction tolerances or fine adjustments at the time of installation. Effect of the Invention

[0024] According to the present invention, cutting or rebuilding of protrusions, which was previously done on-site, and the creation of new dedicated molding dies to deal with the misalignment are no longer necessary, and the molding of end-sized slab plates to deal with the misalignment can be done with relatively simple work in a short time at low cost. This shortens the construction period for track slab installation work and reduces material loss, enabling efficient and economical molding and installation of track slabs. [Brief description of the drawings]

[0025] [Figure 1] FIG. 2 is a perspective view showing the installed state of the slab track. [Diagram 2] FIG. 2 is a plan view showing the installation state of a track slab on a concrete track bed. [Diagram 3] FIG. 2 is a schematic cross-sectional side view showing a state in which a track slab is installed on a concrete road bed. [Figure 4] FIG. 2 is a plan view showing a mold assembly state of a track slab forming formwork according to an embodiment of the present invention. [Diagram 5] FIG. 2 is a plan view showing a state in which a forming form for a track slab according to an embodiment of the present invention has been removed. [Figure 6] FIG. 2 is a plan view showing a master mold and an adjustment attachment used to mold the adjustment attachment. [Figure 7] FIG. 7 is an enlarged view of part A in FIG. [Figure 8] 7 is a cross-sectional view taken along line BB in FIG. [Figure 9] 1A to 1C are plan views showing various aspects of the adjustment attachment. [Figure 10] 1A and 1B are a front view and a rear view, respectively, showing a full-surface type adjustment attachment. [Figure 11] 1A and 1B are right side and left side views showing a full-surface type adjustment attachment. [Figure 12] 1A and 1B are a plan view and a bottom view, respectively, showing a full-surface type adjustment attachment. [Figure 13] FIG. 13 is a perspective view showing a full-face type adjustment attachment. [Figure 14] FIG. 11 is a cross-sectional view taken along line CC in FIG. 10(a) showing a full-face type adjustment attachment. [Figure 15] FIG. 13 is a reference perspective view showing the use state of a full-face type adjustment attachment. [Figure 16] FIG. 11 is a perspective view showing a forming form for a track slab according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] Hereinafter, an embodiment of the present invention will be specifically described with reference to the drawings. In the following description, the configuration of the slab track and the installation state of the track slab will be described first with reference to Figs. 1 to 3. Next, the basic configuration of the forming form for the track slab according to the embodiment of the present invention will be described with reference to Figs. 4 and 5.

[0027] Next, the configuration of the master mold used when manufacturing the attachment for the forming form for track slabs of the present invention and the procedure for manufacturing the attachment for the forming form for track slabs using this master mold will be described with reference to Figures 6 to 8. Next, taking the embodiment shown in Figures 10 to 15 as an example, the specific configuration of the attachment for the forming form for track slabs of the present invention, which is a main part of the forming form for track slabs of the present invention, will be described, and further various aspects of the attachment for the forming form for track slabs will be mentioned with reference to Figure 9. Finally, with reference to Figure 16, a forming form for track slabs according to another embodiment of the present invention, which has a partial configuration different from that of the above embodiment, will be briefly described.

[0028] (1) Structure of slab track and installation condition of track slab (see Fig. 1 to Fig. 3) The slab track 1 is a new type of track that does not use ballast or sleepers, and is widely used for Shinkansen and other trains. The slab track 1 is characterized in that it is less susceptible to settlement of the track caused by trains passing through it, and maintenance costs can be significantly reduced. Specifically, the slab track 1 is basically composed of a concrete trackbed 5 with a protrusion 3 on its upper surface, a slab slab 9 with recesses 13, 13 formed at both ends of the rail 21 in the laying direction Y, a filling layer 15 interposed between the upper surface of the concrete trackbed 5 and the bottom surface of the slab slab 9, and a pair of rails 21 installed on the slab slab 9 with a predetermined gauge width W.

[0029] The track slab 7 is composed of a slab slab 9 and a filling layer 15. The slab slab 9 is a precast rectangular flat concrete plate with structural steel bars (not shown) arranged inside. As an example of both ends of the slab slab 9 in the laying direction Y, recesses 13, 13 that fit with the protrusion 3 of the concrete track bed 5 are formed in the center as described above. Note that FIG. 3 is a schematic side cross-sectional view in which the structural steel bars arranged in the slab slab 9 and the concrete track bed 5 are omitted.

[0030] In this embodiment, as an example, the protrusions 3 are short cylindrical with a diameter of 520 mm and a height of 240 mm, and the recesses 13 are semicircular in plan view with a radius of 300 mm fit into them across a space 25 with a resin thickness of 40 mm into which resin is injected. Note that in this embodiment, as an example, rectangular flat slab slabs 9 with a width of 2220 mm, a length of 4900 mm, and a thickness of 190 mm (160 mm may be used inside tunnels) are installed at a pitch of 5000 mm in the laying direction Y.

[0031] The filling layer 15 is formed, for example, by filling a belt-shaped nonwoven fabric bag called a long tube 17 with cement asphalt mortar (hereinafter referred to as CA mortar) 19. The thickness of the filling layer 15 filled with the CA mortar 19 is 50 mm, and the height of 240 mm obtained by adding the thickness of the slab 9 (190 mm) to the thickness of the slab 9 is set to be approximately the same as the height of the protrusions 3 provided on the concrete roadbed 5 described above (260 mm).

[0032] In addition, the slab slab 9 formed by the track slab forming formwork 31 of the present invention is based on the above-mentioned dimensions, but in reality, there may be deviations in the protrusion spacing, protrusion position and protrusion dimensions of the protrusions 3 provided on the concrete track bed 5, and if these deviations exceed the construction tolerances, the size and shape of the recesses 13 must be adjusted. When distinguishing a slab slab whose size and shape of the recesses 13 have been adjusted in this way from the standard slab slab 9 of the above-mentioned standard dimensions, it is called an end-of-cut slab slab 11.

[0033] (2) Basic structure of the track slab forming formwork (see Figures 4 and 5) The track slab forming formwork 31 of the present invention is a forming formwork for forming a slab slab 9 having recesses 13 that fit with protrusions 3 provided on a concrete track bed 5. Specifically, the track slab forming formwork 31 is configured by including a pair of first side frames 33, 33 arranged in the gauge width direction X, and a pair of second side frames 35, 35 arranged in the laying direction Y. The second side frames 35 are sometimes referred to as end frames.

[0034] As a characteristic configuration of the forming formwork 31 of the track slab of the present invention, the second side frame 35 is provided with a convex forming portion 37 for forming the recess 13, the protrusion range, protrusion position and protrusion amount of which can be adjusted in response to differences in the protrusion spacing, protrusion position and protrusion dimension of the protrusions 3.

[0035] In addition, in this embodiment, the convex molding portion 37 is configured by including a reference convex frame 39 integral with the second side frame 35 which corresponds to the standard protrusion spacing, protrusion position and protrusion dimensions of the protrusions 3 of the concrete roadbed 5, and a plate-shaped adjustment attachment 41 which is attached to the reference convex frame 39 for use.

[0036] The forming formwork 31 of the track slab of the present invention constructed in this manner has a pair of first side frames 33, 33 and second side frames 35, 35 connected to a base plate 43 which forms the bottom surface of the slab slab 9 as shown in Figures 4 and 5, via a slide unit (not shown) that slides rails 45 in a slidable state so that the formwork can be set between the form-assembled state shown in Figure 4 and the form-disassembled state shown in Figure 5.

[0037] (3) Configuration of the master mold and manufacturing procedure for attachments for the track slab forming formwork (see Figs. 6 to 8) 6 to 8 show a master mold 61 used when producing a plate-shaped adjusting attachment 41 having a predetermined thickness t, and a full-surface type adjusting attachment 41A produced using the master mold 61. The full-surface type adjusting attachment 41A is an example of the adjusting attachment 41, and is used by attaching it to the entire inner surface of the recess 13.

[0038] For example, the master mold 61 is manufactured by using the second side frame 35, and using as a base material a portion cut out around the reference protruding frame 39 of the second side frame 35. The master mold 61 is composed of an upper plate 63, a front plate 65, a lower plate 67, and a side plate 69, and as an example, a 45° tapered surface 64 and a tapered surface 68 are formed at the tip portions of the upper plate 63 and the lower plate 67. In addition, the tip portion of the lower plate 67 is not necessary for the master mold 61, and is cut at a position with a protrusion amount of, for example, 20 mm.

[0039] When manufacturing the adjusting attachment 41 using such a master die 61, a steel plate of a predetermined thickness t is prepared according to the projection intervals, projection positions and projection dimensional deviations of the projections 3, and is bent to fit the master die 61 as shown in the figure, and cut to a predetermined size. Also, the left and right end faces in the circumferential direction of the adjusting attachment 41A are cut obliquely by fitting to the radius of the corners of the master die 61, as shown in Fig. 7. Furthermore, the upper and lower end faces of the adjusting attachment 41A are also cut at 45° to fit the tapered surface 64 of the upper plate 63 and the tapered surface 68 of the lower plate 67 of the master die 61, as shown in Fig. 8.

[0040] (4) Specific configuration of attachment for track slab forming formwork (see Figures 10 to 15) The track slab forming form attachment 51 of the present invention is an attachment for a forming form 31 for forming a slab slab 9 having recesses 13 that fit with protrusions 3 provided on a concrete track bed 5. In this embodiment, the track slab forming form attachment 51 is configured by a plate-like adjustment attachment 41 of a predetermined thickness t that is attached to the surface of a reference convex frame 39 of a convex forming part 37 that corresponds to the standard protrusion interval, protrusion position and protrusion dimension of the protrusions 3 of the concrete track bed 5.

[0041] In addition, Figures 10 to 15 show an adjustment attachment 41A having a thickness t = 5 mm as an example of a full-surface type that is attached to the entire surface of the reference convex frame 39 of the second side frame 35, with Figure 10(a) being its front view, Figure 10(b) being its back view, Figure 11(a) being its right side view, Figure 11(b) being its left side view, Figure 12(a) being its plan view, Figure 12(b) being its bottom view, Figure 13 being its oblique view, Figure 14 being a CC cross-sectional view in Figure 10(a), and Figure 15 being a reference oblique view showing the state of use.

[0042] The adjustment attachment 41A thus constructed is a curved plate-like member having a semicircular shape in a plan view, and the left and right end faces and the top and bottom end faces in the circumferential direction are cut obliquely at the above-mentioned predetermined angle. The thickness t of the adjustment attachment 41A is the amount of protrusion from the surface of the reference convex frame 39, and this amount of protrusion is used to fine-tune the shape of the recess 13 and absorb deviations in the protrusion spacing, protrusion position, and protrusion dimensions of the protrusions 3 of the concrete track bed 5. The adjustment attachment 41A thus constructed is a relatively light plate-like member, and can be sufficiently attached to the reference convex frame 39 even using simple attachment means such as double-sided tape.

[0043] In addition, the adjustment attachment 41A thus configured can be manufactured based on the survey results (which may be actual deviation data of the projection interval, projection position, and projection dimension of the projection 3 of the concrete track bed 5). In this way, even if the site is in progress, for example, it is possible to manufacture the slab slab 9 in a short time at a factory according to the instructions of the survey results. In addition, the adjustment attachment 41A thus configured can be manufactured in advance in a plurality of sets corresponding to the deviations expected in the projection interval, projection position, and projection dimension of the projection 3 of the concrete track bed 5, and these can be appropriately selected and used according to the situation at the site. In addition, in this way, it is possible to manufacture and prepare a plurality of sets of end-of-the-track slab slabs 11 corresponding to the deviations in advance prior to the installation work of the track slab 7. Therefore, it is only necessary to select and install the end-of-the-track slab slab 11 suitable for the site, which can contribute to the smooth installation work of the track slab 7 as described above.

[0044] (5) Various forms of attachments for track slab forming forms (see Figure 9) When using the adjustment attachment 41 as the attachment 51 for the track slab forming form of the present invention, it is possible to prepare in advance a plurality of types of adjustment attachments 41 with stepwise different thicknesses t, and select and use the corresponding type of adjustment attachment 41 according to the deviation of the projection interval, projection position, and projection dimension of the projection 3 of the concrete track bed 5. In this embodiment, for example, four types of adjustment attachments 41 with thicknesses t of 3 mm, 5 mm, 10 mm, and 15 mm are prepared. Note that these four types of adjustment attachments 41 are merely examples set based on data from recent installations, and it is assumed that the adjustment attachments 41 with thicknesses of 3 mm, 5 mm, and 10 mm are particularly often used. In addition, it is possible to prepare in advance a plurality of types of adjustment attachments 41 to be attached to the entire surface of the reference convex frame 39 to be attached or a portion thereof, and select and use the corresponding type of adjustment attachment 41 according to the deviation of the projection interval, projection position, and projection dimension of the projection 3 of the concrete track bed 5.

[0045] Figure 9 shows various aspects of adjustment attachments 41 that correspond to expected deviations in the projection spacing, projection position, and projection dimensions of the projections 3 of the concrete track bed 5. Specifically, Figure 9(a) shows a full-surface type adjustment attachment 41A of a specified thickness t that is attached to the entire surface of the reference convex frame 39 described above, while Figures 9(b) and (c) show partial-attachment type adjustment attachments 41B and 41C, respectively, that are attached within a range of 90° and a range of 120° and can be used to accommodate deviations in the laying direction Y.

[0046] 9(d) and (e) show partial-mounting type adjustment attachments 41D and 41E, respectively, which are attached in a range of 45° and a range of 90° and can be used to accommodate a deviation to the left in the gauge width direction X. Also, FIG. 9(f) and (g) show partial-mounting type adjustment attachments 41F and 41G, respectively, which are attached in a range of 45° and a range of 90° and can be used to accommodate a deviation to the right in the gauge width direction X. Furthermore, as mentioned above, four types of adjustment attachments 41 shown in FIG. 9(a) to (g) are prepared as examples, with thicknesses t of 3 mm, 5 mm, 10 mm, and 15 mm, and the attachment with the optimum thickness t is used according to the conditions at the site where it is used.

[0047] The track slab forming form 31 and forming form attachment 51 of the present invention thus constructed eliminate the need for cutting or reconstructing the protrusions 3, or creating a new forming form to accommodate the misalignment, which was previously done on-site, and allows the end-sized slab slab 11 to be formed in a short time at low cost with relatively simple work. This shortens the construction period for the track slab 7 installation work and reduces material loss, enabling efficient and economical forming of the track slab and installation of the slab track 1.

[0048] [Other embodiments] The track slab forming form 31 and the forming form attachment 51 of the present invention are not limited to the above-mentioned embodiment, and various modifications can be made within the scope of the claims. For example, the convex forming portion 37 provided on the second side frame 35 of the track slab forming form 31 may be constituted by a separate convex attachment 47 that is attached to the second side frame 35A without the reference convex frame 39 and is manufactured in advance taking into account deviations in the projection intervals, projection positions, and projection dimensions of the projections 3 of the concrete track bed 5.

[0049] FIG. 16 shows an example of a convex attachment 47, in which the convex attachment 47 is made of steel, and a plurality of sets of attachments with different radii R and shapes are prepared in response to the deviation of the projection interval, projection position, and projection dimension of the projection 3 of the concrete track bed 5. The convex attachment 47 corresponding to the deviation is selected and attached to the second side frame 35A without the reference convex frame 39, for example, by bolting from the rear side of the figure. In addition, the material of the adjustment attachment 41 and the convex attachment 47 is not limited to steel, and other materials such as resin materials and rubber materials can be used as long as the required mechanical strength is obtained. In addition, the means for attaching the adjustment attachment 41 to the reference convex frame 39 is not limited to double-sided tape, and other attachment means such as adhesives and screws can be used. [Explanation of symbols]

[0050] 1. Slab track 3 protrusions 5 Concrete track bed 7 Track slab 9 Slavic Edition 11 End slab plate 13 Recess 31 (Railway slab) Formwork 33 First side frame 35 Second side frame 37 Convex molding part 39 Reference frame 41 Adjustment attachment 47 Convex attachment 51 (Railway slab) Formwork attachment 61 Master Mold X Gauge width direction Y Laying direction W Gauge width t Thickness R radius of action

Claims

1. A forming form for forming a slab slab having a recess that fits with a protrusion provided in a concrete roadbed, The forming formwork is a formwork including a pair of first side frames arranged in the gauge width direction and a pair of second side frames arranged in the laying direction, and is used by combining these side frames when assembling the formwork, The second side frame is provided with a convex molding portion for molding the concave portion, The protruding portion is capable of adjusting a protruding range, a protruding position, and a protruding amount in response to differences in the protruding interval, the protruding position, and the protruding dimension of the protrusions, Furthermore, the convex molding portion has a reference convex frame integral with the second side frame, the reference convex frame corresponding to the standard projection interval, projection position, and projection dimension of the projection of the concrete roadbed; and a plate-shaped adjustment attachment that is attached to the reference convex frame for use.

2. The forming formwork for a track slab as described in Claim 1, characterized in that the adjustment attachment is manufactured based on the surveying results of the protrusion spacing, protrusion position and protrusion dimensions of the protrusions on the concrete track bed.

3. The forming formwork for a track slab as described in Claim 1, characterized in that the adjustment attachments are pre-fabricated in multiple sets to correspond to expected deviations in the protrusion spacing, protrusion position and protrusion dimensions of the protrusions of the concrete track bed, and are used by selecting appropriately these according to the conditions on site.

4. An attachment for a forming form for forming a slab slab having a recess that fits with a protrusion provided in a concrete roadbed, The attachment for a forming formwork of a track slab is a plate-shaped adjustment attachment of a predetermined thickness that is attached to the surface of a reference convex frame of a convex molding part that corresponds to the standard protrusion spacing, protrusion position and protrusion dimensions of the protrusions of a concrete track bed.

5. An attachment for a forming formwork for a track slab as described in Claim 4, characterized in that the adjustment attachment is prepared in advance in multiple types with gradually differing thicknesses, and the corresponding type of adjustment attachment is selected and used depending on the deviations in protrusion spacing, protrusion position and protrusion dimensions of the protrusions on the concrete track bed.

6. An attachment for a forming formwork of a track slab as described in Claim 4 or 5, characterized in that the adjustment attachment is prepared in multiple types to be attached to all or part of the surface of the reference convex frame to be attached, and a corresponding type of adjustment attachment is selected and used depending on the deviations in protrusion spacing, protrusion position and protrusion dimensions of the protrusions of the concrete track bed.

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