JPH10140641A - Variable side ditch and laying method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a variable side ditch in which the adjustment of its height and inclination can be easily carried out, even if the laying of a foundation is not sufficiently flat and hard, and also the laying work can be easily carried out without waiting the hardening of the foundation concrete. SOLUTION: A variable side ditch 10 is made up of a top plate 11 on which a side ditch cover is placed, and two side walls 12 suspended downward from both sides of the top plate 11, and the sectional shape thereof is made to be nearly in an inverted U-shape. In that case, base fittings 13 are integrated to the lower end parts of the respective side ditch walls 12 at least at two places, and also, height adjustment bolts 14 that are vertically movable are fitted to the respective base fittings 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a variable gutter made of concrete in a factory or the like in advance to form a gutter, and a method of laying the gutter at a place where a gutter is to be formed.

[0002]

2. Description of the Related Art Conventionally, a "U-shaped groove" is used to form a side groove.
This was done by laying concrete products called U-shaped grooves, but the bottom where the water flows was fixed, so the laying position and inclination had to be strictly adjusted. . Therefore, in order to make it easy to adjust the bottom portion using ready-mixed concrete called invert, an inverted U-shaped variable gutter having an open lower portion has been developed.

[0003] This type of variable side groove is very easy to form a drain slope because the upper surface of the above-mentioned invert can be formed freely. Depending on the end face, the overall position must be adjusted. In other words, this type of variable gutter supports the overall weight with a limited small area, the lower surface of the gutter, so that the surface of the underlying base material is sufficiently flat and easily sinks. Unless it is not included, the laying cannot be performed sufficiently and reliably. Therefore, in order to lay this kind of variable gutter, the laying of the foundation material and the placing of the foundation concrete had to be performed very strictly.

In order to construct this kind of variable gutter,
It is performed by placing the foundation concrete on the foundation material, laying the foundation concrete, waiting for a few days, for example, to confirm the curing of the foundation concrete, and then arranging and positioning the variable gutter on the cured foundation concrete. It was. In other words, in order to construct the conventional variable gutter, the hardening time of the foundation concrete was indispensable for the stable installation of the variable gutter, and there was a problem that the construction period was prolonged. .

The inventor of the present invention has made various efforts to facilitate the work of laying the variable side groove and shorten the construction period while taking advantage of the conventionally proposed variable side groove. As a result of repeated studies, the present invention has been completed.

[0006]

SUMMARY OF THE INVENTION The present invention has been made on the basis of the above circumstances, and the problem to be solved is to improve workability and shorten the construction period when laying a variable side groove. .

That is, an object of the first aspect of the present invention is to easily adjust the height and inclination of the foundation material even if the foundation material is not sufficiently flat and rigid. Another object of the present invention is to provide a variable gutter capable of laying work without waiting for the foundation concrete to harden.

Another object of the invention according to claim 2 is to improve the workability in laying the variable side groove according to claim 1, and to simplify the intended laying of the variable side groove. It is an object of the present invention to provide a laying method which can be performed reliably and can shorten the construction period.

[0009]

Means for Solving the Problems In order to solve the above problems, first, means according to the first aspect of the present invention will be described with reference numerals used in the following description of embodiments. "The variable side groove 10 is composed of a top plate 11 on which the side groove lid 20 is placed and two side walls 12 hanging down from both sides of the top plate 11, and having a substantially inverted U-shaped cross section.
At least two base fittings 13 are integrated at the lower end portion of each side groove wall 12, and each base fitting 13
The variable side groove 10 "is provided with a height adjusting bolt 14 which can be moved up and down with respect to.

That is, the variable side groove 10 according to claim 1
As shown in FIG. 1, has a top plate portion 11 on which the gutter cover 20 is placed, and two side walls 12 hanging from both sides of the top plate portion 11, and has a substantially inverted U-shaped cross section. The base member 13 shown in FIGS. 1 to 3 and a height adjusting bolt 14 connected thereto are provided at the lower end of each side wall 12. It had.

The base fitting 13 and the height adjusting bolt 14 need to be formed at at least two places at the lower end of each side wall 12 because the height and inclination of the variable side groove 10 are adjusted. This must be performed at the lower end of the side wall 12, and it is difficult to adjust the entire variable side groove 10 at one location. Of course, each base fitting 13 must be integrated with each side wall 12 of the variable side groove 10. The reason is that this base fitting 13
Is moved up and down by the height adjustment bolt 14, so that the variable side groove 10 itself must be moved up and down.

The base fitting 13 is made of concrete made up of the top plate 11 and the side wall 12 and is made of concrete. Then, as shown in the variable side groove 10 shown in FIG.
2 may be fixed later to the outer surface, or may be inserted into the side wall 12 formed of concrete. In any case, as shown in FIG. 4, the base fitting 13 is fixed to the outer surface of the side wall 12 or the like, or is inserted into the side wall 12 and is integrated with the vertical part 13a. Therefore, it is most simple to construct the horizontal portion 13b having the nut portion 13c that supports the height adjusting bolt 14 so that the height adjusting bolt 14 can be advanced and retracted.

When the base fitting 13 is to be inserted into the side wall 12, as shown in FIG.
It is preferable to form a concrete connection hole 13d in the vertical portion 13a. The concrete connection hole 13d can be formed by connecting the concrete located on both sides of the vertical portion 13a to each other by putting the concrete therein, thereby integrating the base metal 13 with the side wall 12. This is because it can be performed more reliably. In addition, if an anchor bar is inserted into the concrete connection hole 13d of the vertical portion 13a inserted into the side wall 12, and the anchor bar is inserted into the side wall 12, together with the anchor bar, the side wall 12 of the base fitting 13 can be formed. Can be more reliably integrated into the device.

Further, the base fitting 13 may have a form as shown in FIG. That is,
Since the base bracket 13 mainly lifts the entire variable side groove 10, the lower end surface of the side wall 12 is supported by the horizontal portion 13b, and the vertical portion 13a is used for positioning with respect to the side wall 12, and the horizontal portion 13b is used. The height adjustment bolt 14 may be screwed and retracted with respect to the upper nut portion 13c to perform the adjustment.

The means according to the second aspect of the present invention in which the variable side groove 10 as described above is specifically laid at a place where the side groove is to be formed is similarly described as follows. A method of laying the gutter 10 through the following steps: (1) laying a base material 31 such as a crusher run at a place where a gutter is to be formed; A step of arranging the support pillows 32 in the direction orthogonal to the positions of the base fittings 13 of the variable side grooves 10; (3) the variable side grooves while the base fittings 13 correspond to the respective support pillows 32; (4) The height adjusting bolts 14 of the variable side grooves 10 are screwed or screwed back to adjust the amount of protrusion of the base metal 13 from the lower surface, so that the top plate 11 Adjust the position so that it is Step; (5) which is on the 31 basic material the foundation concrete 33 and the inverter 34 the step of pouring. "

That is, in the laying method according to the second aspect, it is necessary to dispose the support pillow 32 on the base member 31 because the variable side groove 10 is placed on the support pillow 32. This is to make it possible to easily lay the variable side groove 10 regardless of the state of the base material 31. In other words, by mounting the variable side groove 10 on the support pillow 32,
Even if one surface is not so flat or hardened, the variable side groove 10 can be laid and its position can be adjusted.

With respect to the support pillow 32, the variable side groove 10 is adjusted by screwing and retreating the height adjustment bolt 14 on the variable side groove 10 side. Needless to say, it must be positioned above. Further, as shown in FIG. 2, the respective base fittings 13 and the height adjustment bolts 14 are located on the support pillows 32 and are located slightly higher than the surface of the base material 31. The work of rotating the bolt 14 is facilitated.

Since the variable gutter 10 laid by this laying method does not have a bottom surface through which drainage flows, the base concrete 33 and the invert 34 must be cast on the base material 31. In this case, as shown in FIG. 3, the variable gutter 10 has an opening 11a for mounting the gutter cover 20 on the top plate 11, so that the base concrete can be removed from the opening 11a. 33 and the invert 34 may be cast, and even after the variable side gutter 10 is laid in the base material 31, the base concrete 33 and the invert 34
Can be easily formed.

In other words, in this laying method, the support pillow 3
After adjusting the variable side groove 10 with respect to 2
Since the foundation concrete 33 and the invert 34 are cast on the foundation material, there is no need to set a hardening period for the foundation concrete 33 and the invert 34. Therefore,
In the conventional laying method, the adjustment of the variable gutter can be performed only at least after the foundation concrete has hardened, but in the laying method of the present invention, these can be performed at the same time. Can be shortened.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A description will now be given of a variable side groove 10 according to an embodiment shown in the drawings and a method of laying the same. Since the embodiment is performed for the side groove 10, both embodiments will be described simultaneously and in parallel.

FIG. 1 shows a side surface of the variable side groove 10 according to the first aspect when the laying is completed by the laying method according to the second aspect. It is in the direction of drainage flow, that is, in the direction of the gutter.

As shown in FIG. 3, the variable side groove 10 has a top plate portion 11 having a large opening 11a for accommodating the side groove cover 20, and, as shown in FIGS.
It has a pair of left and right side walls 12 that hang down integrally from both sides of the top plate part 11, and is formed in advance in a factory or the like as a concrete with a substantially inverted U-shaped cross section by concrete. . As shown in FIGS. 1 to 3, the top plate 11 located on both sides of the opening 11 a has
Needless to say, a mounting portion 11b for mounting 0 is formed.

As shown in FIGS. 2 and 3, one base fitting 13 is integrated with the lower end of each side wall 12 forming the variable side groove 10, as shown in FIGS. As shown in FIG. 4 or FIG. 5, a height adjusting bolt 14 is attached to the base metal 13 so as to be able to advance and retreat. In this case, each height adjusting bolt 1
As described in the section of the means of the present invention, the base 4 has the respective base fittings 13 so as to be movable in the vertical direction.

Each of the variable side grooves 10 configured as described above is
In order to lay at a place where a side groove is to be formed, first, a base material 31 such as a crusher or the like is spread as shown in FIGS. 1 and 2. In this case, the surface of the base material 31 need not be flat at all. This is because each of the variable side grooves 10 is installed on at least two support pillows 32 which are to be arranged on the base material 31 in a state orthogonal to the direction of the side grooves. This is because if the upper surface of the base material 31 is at a predetermined position, it is not necessary to level the other base material 31.

After the support pillows 32 are arranged on the base material 31, the variable side grooves 10 are placed on the support pillows 32 so that the respective base fittings 13 are respectively located. Since each support pillow 32 is often not in a sufficiently horizontal state, it is not possible to form a side groove capable of sufficiently draining if the height or the inclined state of the variable side groove 10 remains unchanged. The predetermined state of the variable side groove 10 is adjusted by screwing and retracting the attached height adjusting bolt 14. This adjustment can be performed only by rotating the respective height adjustment bolts 14, and there is no need to lift and adjust the entire variable side groove 10. Therefore, the adjustment can be performed very easily.

When the adjustment of the height and the inclination of each variable side groove 10 is completed as described above, in the present embodiment, as shown in FIG. 1 and FIG. The formwork 40 is assembled, and the foundation concrete 33 is poured into the formwork 40. This foundation concrete 33
Is also installed on the upper surface of the foundation concrete 33 with each variable gutter 10
Is not placed, so it is OK to go roughly.

If the foundation concrete 33 has hardened to a certain degree or more, or together with the foundation concrete 33, an invert 34 for forming the drainage surface of the gutter is then placed. This invert 34
The upper surface of the variable side groove 10 needs to be brought into a predetermined state.
As described above, it is very easy to perform the process from a.

[0028]

As described in detail above, first, in the invention according to the first aspect, as illustrated in the above embodiment, "the top plate portion 11 on which the gutter cover 20 is placed, and the top plate portion 11 Consisting of two side walls 12 hanging from both sides of
A variable side groove 10 having a substantially inverted U-shaped cross section. The base metal fittings 13 are integrated with at least two places at the lower end of each side groove wall 12 and are vertically movable with respect to each of these base metal fittings 13. The height adjustment bolt 14 is mounted "has a structural feature, whereby the height and inclination of the base material can be easily adjusted even if the laying of the base material is not sufficiently flat and rigid. It is possible to provide the variable side groove 10 with a simple configuration that can perform the laying operation without waiting for the foundation concrete to harden.

According to the laying method of the second aspect,
The variable side groove 10 according to claim 1 is described as follows: “(1) laying a base material 31 such as a crusher run at a place where a side groove is to be formed; (2) substantially perpendicular to the side groove direction on the base material 31. Arranging the support pillows 32 at the positions corresponding to the base brackets 13 of the variable side grooves 10 in the direction in which the base brackets 13 correspond to the variable side grooves 10. (4) The height adjustment bolts 14 of the variable side grooves 10 are screwed or screwed back to adjust the amount of projection of the base metal 13 from the lower surface, so that the position of the top plate portion 11 is adjusted. (5) 31. Placing the foundation concrete 33 and the invert 34 on the foundation material "has a feature in its configuration. 1
In laying the variable side groove 10, the workability can be improved, the desired laying of the variable side groove can be performed easily and reliably, and the construction period can be shortened.

[Brief description of the drawings]

FIG. 1 is a side view of a variable side groove according to claim 1 laid by a laying method according to claim 2;

FIG. 2 is a front view of the same.

FIG. 3 is a plan view of the variable gutter without a gutter cover;

FIG. 4 is a perspective view showing an example of a base fitting used in the variable side groove of the present invention.

FIG. 5 is a side view showing another example of the base fitting.

DESCRIPTION OF SYMBOLS 10 Variable side groove 11 Top plate part 11a Opening 11b Placement part 12 Side wall 13 Base fitting 13a Vertical part 13b Horizontal part 13c Nut part 13d Concrete connection hole 14 Height adjustment bolt 20 Side groove cover 31 Foundation material 32 Support Pillows 33 Foundation concrete 34 Invert 40 Formwork

Claims (2)

[Claims] 1. A variable side groove having a substantially U-shaped cross section, comprising a top plate on which a gutter cover is placed, and two side walls hanging down from both sides of the top plate. A variable side groove in which base metal fittings are integrated into at least two places at the lower end of the side wall, and height adjusting bolts that can move up and down are attached to each of these base metal fittings. 2. A method for laying the variable side groove according to claim 1 through the following steps. (1) a step of laying a base material such as a crusher run at a place where a side groove is to be formed; (2) a base metal of the variable side groove corresponding to a direction on the base material substantially perpendicular to the direction of the side groove. (3) placing the variable-side groove on each of the support pillows so that the base fittings correspond; (4) adjusting the height of the variable-side groove Adjusting the amount of protrusion of the bolt from the lower surface of the base metal by screwing or retreating the bolt to adjust the position of the top plate to a predetermined position; (5) On the base material The process of placing the foundation concrete and invert in the building.