JPS6151087B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cement concrete pavement formwork and a rail fixing device that can follow changes in pavement thickness during the construction of thin-layer concrete pavement.

To restore surface properties such as flatness and slip resistance of various cement concrete pavements such as airport aprons, wharf container yards, roads, etc. that have been lost due to uneven settlement or damage, as well as to prevent the progression of destruction. When attempting to use the overlay method to construct a road surface, the installation height of the formwork must be changed in accordance with changes in the thickness of the pavement to be constructed, as the road surface is uneven or undulating due to uneven settlement etc. It is necessary to align the top of the formwork by
In addition, in order to ensure the flatness of the construction road surface, the installation height of the rail supporting the paving machine must be changed so that the running surface of the rail is parallel to the top of the formwork.

However, conventionally, no means has been disclosed for adjusting the installation height of the formwork and the installation height of the rails supporting the paving machine by simple operations.

The present invention was made in view of the above circumstances, and its purpose is to reduce the installation height of the formwork and the installation height of the rails that support the paving machine even when the hard field base of cement concrete pavement is used as the support board for the paving machine. To provide a formwork for cement concrete pavement and a fixing device for a rail, which can be adjusted by a simple operation to pave thin-layer concrete pavement with excellent flatness and a predetermined thickness.

In order to achieve this object, the present invention has been developed by driving a hole-in anchor into an existing cement-concrete pavement, etc., inserting a screw member screwed into the hole-in anchor, and allowing the screw member to pass through the pavement. a support plate having an elongated hole extending in a direction intersecting the direction; a nut that is screwed onto the screw member to attach the support plate to the screw member at an arbitrary height and horizontally;
A structure comprising means for fixing a formwork to the support plate along the construction side of the support plate, and means for holding a rail for a paving machine on the support plate at a position remote from the construction side on the support plate. It takes .

The embodiments of the present invention will be described based on the drawings. FIG. 1 is a plan view illustrating the usage of a cement concrete pavement formwork and rail fixing device (hereinafter referred to as "fixing device") 1 according to an embodiment of the present invention. The structure of the fixing device 1 is shown in FIGS. 2 to 4, where FIG. 2 is a plan view, FIG. 3 is a sectional view of FIG. 2, and FIG. 4 is a sectional view of FIG. 3. It is. 2 in the figure represents the field surface of a cement concrete pavement, such as an airport apron, on which the overlay method is to be applied. A plurality of holes 3 are drilled in the field board 2 at a predetermined distance from the position of the joint to be constructed. A hole-in anchor 4 is driven into the hole 3, and a pair of screw members 5 are screwed into the hole-in anchor 4.

A nut 6 is screwed onto the screw member 5 installed in the field panel in this way, and a horizontally long thick plate steel material with the screw member 5 inserted into the elongated hole 8 is placed on the nut 6 via the washer 7. A support plate 9 is placed thereon. The support plate 9
is an arbitrary height T ₁ with respect to the screw member 5 via the washer 11 by the nut 10 screwed into the screw member 5.
and can be mounted horizontally. On the support plate 9, a rail presser 12 made of a pair of angle steel members is provided at an intermediate position between a pair of screw members 5, 5 to which the support plate 9 is attached.
is fixed by welding etc. Both rail presser foot 1
A rail ₁₅ with a height T 2 is placed on the support plate 9 between the two and supports the running wheels 14 of a paver 13, which is schematically represented in FIG. The rail 15 may be placed on the support plate 9 in this way, or the rail 15 may be placed on the support plate 9 and then
As shown in the figure, insert a wedge 17 into the hole 16 of the rail holder 12.
The rail 15 can be fixed by driving in the
Instead of wedges, claws or tie plates may be used to secure the rails. A spacer 18 of an appropriate thickness is interposed between the support plate 9 and the field board 2 at a position directly below the rail 15. Also, the adjacent fixing device 1,
A spacer can be interposed between the rail 15 and the field board 2 at an intermediate position of the rail 15 extending between the rails 15, for example at the position a or b in FIG.

The support plate 9 attached to the pair of screw members 5 as described above extends toward the construction side (left side in FIGS. 2 and 3). A bracket 19 made of angle-shaped steel is fixed on the extended support plate 9 by welding or the like. On the extended support plate 9, a prismatic material 20 such as wood having a length equal to the installation pitch L of the fixing device 1 in FIGS. 1 and 4 and a predetermined height _T3 is placed. The material 20 is placed horizontally so that both ends thereof are located approximately at the center of the brackets 19 of the support plates 9 of the adjacent fixing devices 1. The prismatic member 20 is fixed to the bracket 19 by bolts 21 and nuts 22. A spacer 23 having an appropriate thickness is interposed between the support plate 9 and the field panel 2 at a position below the square columnar material 20. In this embodiment, the prismatic material 20 forms the formwork. 24 is a nail 26 attached to the field plate 2 at a position to edge the lower end of the joint plate 25 that comes into contact with the square column material 20.
It is a crosspiece fixed with etc.

The present invention is constructed as described above in this embodiment. Therefore, a large number of fixing devices 1 are arranged as shown in FIG. 1 while aligning the tops of the rails 15 and the square pillars 20 as formwork, and the joint plates 25 are brought into contact with the inner surfaces of the square pillars 20 and crosspieces 24, and Using the upper surface of the material 20 as a finishing reference surface 29, cut off the upper part of the joint plate 25 that protrudes upward from the reference surface 29, and then use the movable paving machine 13 along the rails 15 on both sides to finish the joints on both sides. A concrete slab 27 can be paved between the base plates 25. Here, as the paving machine, various devices such as a vertical or cross-cutting machine, a spreader, a finisher, a surface finishing machine, an automatic joint cutter, a finishing scaffold, a curing roof, etc. can be used, and the paving machine has two or more of these functions. A comprehensive machine may also be used. This edition 2
After paving 7, one side of the paver is supported by this plate, and the other side of the paver is supported by the fixing device according to the invention, so that adjacent plates can be successively paved. In this case, the fixing device used to cast the paved slab must be removed in advance.
Either leave the screw member 5 screwed to the hole-in anchor 4 and pour concrete, or
Alternatively, by using the screw members 5 left in this way, it is possible to stretch a steel net or reinforcing bars and then perform reinforced concrete pavement.In this way, by using the screw members 5, it is possible to reinforce the newly installed slab and to It is possible to integrate it with the board.

When performing paving work in this way, the rail 15
And each top end alignment of the square column material 20 as a formwork is,
It is only a simple task of adjusting the mounting height _T1 of the support plate 9 to the screw member 5 according to the irregularities or undulations of the field panel 2, and moreover, it is necessary to adjust the top end of the rail 15 and to adjust the mounting height T1 of the support plate 9 to the screw member 5. 20 top end alignments can be performed at the same time. Moreover, on the support plate 9, a square column material 20 and a rail 15 as a formwork are placed.
Since the mounting height T ₁ of the support plate 9 relative to the screw member 5 is adjusted with the screws attached, the difference T ₄ between the height of the running surface 28 of the paving machine such as a concrete finisher and the height of the finishing reference surface 29 is adjusted. is the rail 15 regardless of the mounting height T ₁ of the support plate 9.
It is constant and equal to the difference between the height T ₃ of the prismatic material 20 and the height T ₂ of the prismatic material 20, and therefore, an accurately flat finished surface can be obtained. In addition, since a hole-in anchor is used to install the screw member 5, the hard field ground can be used as it is as a support board for the paving machine, and if necessary, it can be used in conjunction with a spacer inserted under the support plate 9 or rail 15. The rail 15 and the prismatic member 20 can be stably supported by the action. Since the crosspiece 24 is provided at a position that abuts the lower end of the joint plate 25, it is possible to hold the joint plate 25 in the correct posture by working together with the prismatic material 20, and the joint plate 25
Concrete can be prevented from flowing out from between the base plate 2 and the field plate 2. Furthermore, since the mounting position of the support plate 9 can be adjusted in the horizontal direction within the range allowed by the elongated hole 8, the installation position of the side surface of the prismatic material 20 and the joint plate 25 can be aligned on a predetermined line. .

FIGS. 5 and 6 show a fixing device 31 in which the formwork can be adjusted up and down relative to the support plate as another embodiment of the present invention. The installation structure of the support plate and the structure for holding the rails for the paving machine on the support plate can be the same as those explained in the embodiments from Fig. 1 to Fig. 4, so the explanation thereof is as follows. omitted. The support plate 9 is attached to the pair of screw members 5 with its height adjusted, and extends toward the construction side.
On the extended support plate 9, there is a bent part 3 of the mounting plate 32 as a formwork formed by bending the central lower part of the steel plate at right angles.
3 is fixed by welding or the like. The mounting plate 32 is provided with two left and right pairs of vertically oriented elongated holes 34, one above the other. The joint plate 35 has the long hole 3 of the mounting plate 32.
Bolt 3 at the same installation pitch l as the arrangement pitch of 4.
6 has been planted. 37 is a nut, 38 is a washer, and 39 is a spacer.

This fixing device 31 can be installed in the same arrangement as the fixing device 1 of FIG. Fixing device 31
When installing, after attaching the support plate 9 to the screw member 5 at a predetermined height and laying the rail 15 on the support plate 9, the joint plate 35 is fixed to the mounting plate 32 with nuts 38, and then the joint plate A spacer 39 is inserted under the joint plate 35 to maintain the posture of the joint plate 35 and to prevent poured concrete from flowing out along the field plate 2. Since the mounting height with respect to the mounting plate 32 can be adjusted, it is possible to finely adjust the top end alignment of the joint plate 35, and the flatness of the finished surface can be further improved.

Since the present invention has the above configuration, when the road surface is uneven and an overlay method is used on hard ground such as cement concrete, the installation height of the support plate can be adjusted according to the unevenness of the road surface, and the formwork and pavement can be used. Since the tops of the machine rails can be aligned at the same time, it is possible to simplify the work of installing formwork and rails, and to obtain a highly flat paved surface, which can be used for airport aprons, pier container yards, It exhibits excellent practical effects in repair work for various roads, tennis and other stadiums, etc.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing the use state of a fixing device according to an embodiment of the present invention, FIG. 2 is a plan view of the fixing device of FIG. 1, FIG. 3 is a cross-sectional view of FIG. 2, and FIG.
The figure is a sectional view of FIG. 3 with the rail omitted, FIG. 5 is a longitudinal sectional view similar to FIG. 3 of a fixing device according to another embodiment, and FIG. 6 is a sectional view of FIG. 5. . DESCRIPTION OF SYMBOLS 1, 31... Fixing device, 2... Field board, 5... Screw member, 6, 10... Nut, 8... Long hole, 9... Support plate,
12...Rail holder, 15...Rail, 17...Wedge, 1
9...Bracket, 20...Prismatic material, 25, 35...Joint plate, 32...Mounting plate.

Claims (1)

[Claims] 1 Hole-in anchors are driven into existing cement concrete pavement, etc., and screw members screwed onto the hole-in anchors and elongated holes that allow insertion of the screw members and extend in a direction intersecting the paving direction are formed. a support plate having a nut, a nut that is screwed onto the screw member to attach the support plate to the screw member at an arbitrary height and horizontally, and fixing the formwork to the support plate along the construction side of the support plate; and means for holding a rail for a paving machine on the support plate at a position remote from the construction side of the support plate.