JPH10121562A - Bottom plate of inverted u-shaped bottom-opened side ditch and installation method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply and easily form a certain inclination on the bottom of an inverted U-shaped side ditch which is narrow in the width and deep in the depth. SOLUTION: A bottom plate 1 of a side ditch, provided with a specified inclination in advance by adjusting the inclined height through adjusting bolts 3, is installed on a base concrete (b). And an existing inverted U-shaped side ditch (a) body is installed thereon so that the bottom plate 1 of the side ditch is positioned at the bottom, on the bottom plate 1 installed at a specified inclination. Mortar (d) is injected from an injection hole of the bottom plate of the side ditch into the gap between the inclined bottom plate 1 and the base concrete (b) to fill the gap.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique related to the construction of a gutter installed in a side band such as a road, and more particularly to a technique for forming a groove having a narrow width and a deep groove on an inverted U-shaped gutter.
The present invention relates to a method for forming a groove bottom forming plate of an open-bottom inverted U-shaped gutter and a method of forming an open-bottom inverted U-shaped gutter that can easily and easily apply a constant gradient.

[0002]

2. Description of the Related Art In general, a drainage gutter is provided in a side zone portion of a road or the like along the road. Various types of gutters are used depending on installation conditions. In some of these, ready-made concrete gutters may be used. If using a ready-made concrete gutter,
There is an advantage that the construction period is shortened as compared with a gutter which is formed by arranging a formwork and placing concrete, and when the gutter is not so large, a ready-made concrete gutter is generally used.

[0003] The existing concrete gutters include a U-shaped gutter having an open top and an inverted U-shaped gutter having an open bottom.
In the open-top U-shaped gutter, a lid is attached to the upper open part after installation, but every time a tire of a car rides on and passes over the gutter lid, it is closed by the weight of the tire. There is a disadvantage that the end moves slightly up and down on the U-shaped side groove to generate noise, and there is also a disadvantage that the lid is damaged by repeating this.

[0004] On the other hand, in the inverted U-shaped side groove having an open bottom, since the upper surface of the groove on which the tire of the vehicle rides is closed with concrete except that a lid is partially attached, the noise is small and the lid is closed. It has the feature that the number of exchanges can be reduced. The inverted U-shaped gutter having the bottom open type having such a feature is constructed in the following manner.

[0005] First, lay crushed stones, roll it,
The base concrete is cast on it. After the base concrete is hardened, a ready-made concrete inverted U-shaped gutter main body is installed thereon. Then, to prevent water from flowing smoothly in the gutter and prevent water from pooling on a part of the bottom of the gutter,
The bottom concrete is poured into the bottom inside the gutter, and the surface of the poured concrete is finished with a gradient at the bottom using a trowel or the like.

[0006]

However, when the gutter is constructed by using a ready-made concrete inverted U-shaped gutter, the internal width of the ready-made concrete inverted U-shaped gutter used is narrow, and When the groove is deep, the hand of the worker does not reach the bottom inside the gutter, making it difficult to finish the concrete surface cast at the bottom with a slope, and the finishing accuracy of the slope inside the gutter is poor. There was a problem of becoming.

The present invention has been made in view of the above-mentioned problems, and has been made in order to solve the problems. It is an object of the present invention to provide an inverted U-shaped side groove having a narrow groove and a deep groove. It is an object of the present invention to provide a method of forming a bottom groove of a bottom-opened inverted U-shaped gutter and a bottom-opened inverted U-shaped gutter capable of easily and easily applying a constant gradient to the bottom.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, an invention according to claim 1 forms the bottom of an inverted U-shaped groove having an open bottom and is formed separately from the inverted U-shaped groove. A side groove bottom forming plate is provided, an inclined height adjusting nut is provided on the side groove bottom forming plate, and an inclined height adjusting bolt is screwed to the inclined height adjusting nut to adjust the inclined height of the side groove bottom formed plate. Forming a mortar injection hole in the side groove bottom forming plate, screwing the inclined height adjusting bolt to the inclined height adjusting nut, and installing the side groove bottom at the bottom of the inverted U-shaped side groove having an open bottom. A means for adjusting the inclination height of the forming plate to give a constant slope to the side groove bottom forming plate.

Here, as a preferred embodiment, the front surface side of the side groove bottom forming plate is preferably formed so that its cross section in the width direction is formed in a shallow V-shape in the longitudinal direction and its center is slightly lower. In addition, one end side of the gutter bottom forming plate is formed as a convex end surface whose thickness side end surface is slightly rounded, and the other end side on the opposite side of the gutter bottom forming plate has its thickness side end surface formed as a separate gutter bottom portion. It may be formed on a concave rounded concave end surface which engages with the convex end surface of the forming plate. Further, it is preferable that a downwardly rounded convex protrusion is formed on the lower surface on one end side of the side groove bottom forming plate.

According to a second aspect of the present invention, there is provided a gutter bottom forming plate according to the first aspect, wherein the slope height is adjusted in advance by a slope height adjusting bolt to give a predetermined slope on the base concrete, 2. A ready-made inverted U-shaped side groove main body is installed from above the side groove bottom forming plate on the side groove bottom forming plate according to claim 1, which is installed with a predetermined gradient, and the side groove is inclined. It comprises means for injecting mortar into a gap between the bottom forming plate and the base concrete from a mortar injection hole of the gutter bottom forming plate, filling the gap, and performing construction.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described more specifically based on embodiments of the invention shown in the drawings. Here, FIG. 1 is a plan view of a gutter bottom forming plate, FIG. 2 is a side view of the gutter bottom forming plate, FIG. 3 is a front view of the gutter bottom forming plate, FIG.
FIG. 5 is a front view of a gutter bottom forming plate provided at the bottom of the inverted U-shaped gutter, FIG. 5 is a partially omitted overall side sectional view of the gutter bottom forming plate provided at the bottom of the inverted U-shaped gutter, and FIG. It is a partial enlarged side view of the connection part of side groove bottom part formation plates.

In the drawing, a gutter bottom forming plate 1 is provided with an open bottom inverted U-shaped gutter a installed in a side band such as a road.
And is formed as a separate body separated from the inverted U-shaped side groove a. The gutter bottom forming plate 1 is made of the same material as the inverted U-shaped gutter a, for example, made of concrete.

The side groove bottom forming plate 1 is formed of a rectangular plate having a thickness, and its surface side, that is, the side which becomes the bottom surface of the groove when installed on the bottom of the inverted U-shaped side groove a has a longitudinal direction. The cross section in the width direction is formed in a shallow V-shape toward the center, and the center is slightly lower. This is the reverse U-shaped side groove a
This is to make it easy to flow along this shallow V-shaped bottom central portion when the amount of water flowing through is small.

One end of the groove bottom forming plate 1 is formed as a convex end surface 1a whose thickness side end surface is slightly rounded, and the other end of the side groove bottom forming plate 1 on the opposite side has a different thickness side end surface. It is formed on a concave rounded concave end surface 1b which engages with the convex end surface 1a of the body side groove bottom forming plate 1, so that there is no gap even when the inclination angle of the gradient between adjacent side groove bottom forming plates 1 changes. You can get in touch.

On the lower surface at one end of the side groove bottom forming plate 1, a downwardly rounded convex projection 1c is formed. The convex protrusion 1c is locked by a concave rounded locking groove c formed as necessary in the base concrete b in which the inverted U-shaped side groove a is installed, and is formed on the base concrete b. The function of preventing the gutter bottom portion forming plate 1 installed in the front side from moving in the front-rear direction is achieved.

[0016] A total of four inclined height adjusting nuts 2 are provided on the side groove bottom forming plate 1 in a state of being integrally embedded on the left and right sides of both ends in the longitudinal direction of the rectangle, respectively. Each inclined height adjusting nut 2 is arranged so that the axial direction of the shaft hole of the nut is perpendicular to the surface of the side groove bottom forming plate 1, that is,
It is provided so that the surface of the side groove bottom forming plate 1 may be directed vertically in a horizontal state.

The upper end of the inclined height adjusting nut 2 is buried slightly below the upper surface of the side groove bottom forming plate 1.
A hole 2 a having an inner diameter larger than the inner diameter of the nut 2 is formed between the upper end of the tilt height adjusting nut 2 and the upper surface of the side groove bottom forming plate 1. The hole 2a is adapted to receive a bolt head of an inclination height adjusting bolt 3 described later.

The tilt height adjusting bolt 3 is screwed to the tilt height adjusting nut 2 to adjust the tilt height of the side groove bottom forming plate 1. That is, the lower end of the tilt height adjusting bolt 3 screwed to the tilt height adjusting nut 2 is adjusted by the amount of protrusion from the lower surface of the side groove bottom forming plate 1.

The inclination height adjusting bolts 3 screwed to the left and right inclination height adjusting nuts 2 on the same end have the same amount of protrusion from the lower surface of the side groove bottom forming plate 1, and the opposite inclination angles. The projecting amount of the height adjusting bolt 3 is generally different,
By making the amount of protrusion of each of the height adjusting bolts 3 on both ends in the longitudinal direction of the side groove bottom forming plate 1 different from each other, the height of the side groove bottom forming plate 1 in the longitudinal direction is adjusted. A constant gradient is applied to the surface.

A mortar injection hole 4 is formed in the surface of the side groove bottom forming plate 1. Mortar injection hole 4 has shallow V
A total of two are formed on both sides in the longitudinal direction of the lowest center of the character. The mortar pouring hole 4 is used for pouring, for example, a superfluid non-shrinkable mortar d into an inclined gap between the base concrete b and the gutter bottom forming plate 1 installed obliquely thereon. It is used as a hole.

Next, a construction method based on the configuration of the embodiment of the present invention will be described below. A base concrete b for installing an inverted U-shaped gutter a with an open bottom is constructed on the ground where a gutter is laid in a side band portion of a road.

For the construction of the base concrete b, a construction site is excavated, crushed stones are laid on the site, and this is compacted. The base concrete b is constructed by casting concrete on it and hardening it, or installing a plate-like concrete board.

Next, on the constructed base concrete b, a plurality of side groove bottom forming plates 1 are successively placed in the groove length direction. At this time, the protrusion 1c at one end of the side groove bottom forming plate 1 is fitted and locked in the locking groove c of the base concrete b to prevent the side groove bottom forming plate 1 from moving back and forth. An inclined height adjusting bolt 3 is screwed to an inclined height adjusting nut 2 on each gutter bottom forming plate 1 installed on the base concrete b, and the amount of protrusion from the lower surface of the gutter bottom forming plate 1 is adjusted. Have been.

The inclination height of each gutter bottom forming plate 1 is adjusted by the amount of projection of the inclination height adjusting bolt 3 from the lower surface thereof, and each gutter bottom forming plate 1 installed on the base concrete b. 1 is supported in a state where it has a predetermined inclination by an inclination height adjusting bolt 3 protruding from its lower surface.

Then, on each of the side groove bottom forming plates 1 which are successively installed in the longitudinal direction of the groove with a predetermined gradient, a ready-made groove bottom forming plate 1 is formed such that each side groove bottom forming plate 1 becomes the bottom of the groove. The main body of the inverted U-shaped side groove a is installed and mounted from above. Each gutter bottom portion forming plate 1 enters between the open lower portions of the inverted U-shaped gutter a to form the bottom surface of the inverted U-shaped gutter a.

Since the bottom surface of the inverted U-shaped side groove a formed by the side groove bottom forming plate 1 has a predetermined slope,
There is no need to make the groove bottom slope after attaching the inverted U-shaped side groove a. As described above, it is not necessary to cast concrete on the bottom of the inverted U-shaped side groove a as in the related art and finish the surface with a trowel or the like, so that the groove width that is difficult to finish the surface with a trowel or the like is narrow. Moreover, it is very effective in the case of the inverted U-shaped side groove a having a deep groove.

Further, since the gutter bottom forming plate 1 is manufactured in a factory or the like, the surface thereof is finished to be flat and has no unevenness, so that the flat surface is more accurate than the case where the surface is finished with a trowel or the like on site. Surface can be obtained. Furthermore,
There is no need to perform surface finishing using a trowel or the like on the site, which requires time and labor, and can eliminate the need for skilled workers and shorten the construction period.

Thereafter, for example, a superfluid non-shrink mortar d is injected into the gap between each inclined side groove bottom forming plate 1 and the base concrete b to fill the gap. The injection operation of the superfluid non-shrink mortar d is performed from the mortar injection holes 4 formed on the surface of each side groove bottom forming plate 1.

The gap between each inclined groove bottom forming plate 1 and the base concrete b is filled with, for example, superfluid non-shrinkable mortar d, thereby closing the inclined groove forming plate 1. Even if the height adjustment bolt 3 is loosened due to corrosion or the like and comes off from the inclination height adjustment nut 2, the side groove bottom forming plate 1 can be prevented from sinking from a predetermined gradient state to a horizontal state. . Also,
By filling the gap with the superfluid non-shrink mortar d, it is possible to prevent water flowing in the inverted U-shaped side groove a from flowing into the gap.

It should be noted that the present invention is not limited to the above embodiment of the present invention, and it is needless to say that various modifications can be made without departing from the spirit of the present invention. In the above embodiment, the convex end face 1 is provided on one end side of the gutter bottom forming plate 1.
a and the convex protrusion 1c are formed, and the side groove bottom forming plate 1 is formed.
Although the case where the concave end face 1b is formed on the other end side of the above has been described, it may be omitted as necessary.

[0031]

As is apparent from the above description, according to the first and second aspects of the present invention, the base is adjusted by adjusting the inclined height adjusting bolt partially projecting from the lower surface of the side groove bottom forming plate. A predetermined slope can be easily attached to the gutter bottom forming plate installed on the concrete. And
Since it is not necessary to make the groove bottom slope after attaching the inverted U-shaped gutter, there is no need to cast concrete at the bottom of the inverted U-shaped gutter and finish the surface with a trowel, etc. Even in the case of an inverted U-shaped side groove having a narrow groove and a deep groove, which is difficult to finish the surface with a trowel or the like, an accurate gradient can be provided, which is very effective.

Further, since the gutter bottom forming plate is manufactured in a factory or the like, the surface is finished to a flat surface without any irregularities, and the flat surface is more accurate than when the surface is finished by a trowel or the like on site. Can be obtained. Furthermore, since it is not necessary to perform surface finishing using a trowel or the like on the site, which requires time and labor and skill, skilled workers can be eliminated and the construction period can be shortened.

As described above, according to the first and second aspects of the present invention, it is possible to easily and easily apply a constant gradient to the bottom of the inverted U-shaped side groove having a narrow groove width and a deep groove. It has a very novel and beneficial effect.

Also, the cross section in the width direction of the front surface side of the side groove bottom forming plate is shallow toward the longitudinal direction.
If it is shaped like a letter and the center is slightly lower,
When the amount of water flowing through the inverted U-shaped side groove is small, this shallow V
It can flow along the central part of the character, and can be prevented from stagnating as a water reservoir in the middle of the groove bottom.

Furthermore, one end of the gutter bottom forming plate is formed as a convex end surface with a slightly rounded thickness end surface, and the other end of the gutter bottom forming plate is opposite to the other end of the gutter bottom forming plate. When the thickness side end face is formed on a concave rounded concave end face which engages with the convex end face of a separate side groove bottom forming plate, the inclination angle of the gradient between adjacent side groove bottom forming plates is Even if it changes, it can touch without gap.

Further, in the case where a convex protrusion which is slightly rounded downward is formed on the lower surface on one end side of the side groove bottom forming plate, the inverted U-shaped side groove is formed. To be locked in the concave rounded locking groove formed as required in the base concrete to be installed, to prevent the gutter bottom forming plate installed on the base concrete from moving in the front-back direction Can be.

[Brief description of the drawings]

FIG. 1 is a plan view of a gutter bottom forming plate showing an embodiment of the present invention.

FIG. 2 is a side view of a gutter bottom forming plate showing the embodiment of the present invention.

FIG. 3 is a front view of a gutter bottom portion forming plate showing the embodiment of the present invention.

FIG. 4 is a front view of a gutter bottom forming plate provided at the bottom of the inverted U-shaped gutter showing the embodiment of the present invention.

FIG. 5 is a partially omitted overall side sectional view of a gutter bottom forming plate provided at the bottom of the inverted U-shaped gutter showing the embodiment of the present invention.

FIG. 6 is a partially enlarged side view of a connecting portion between side groove bottom forming plates according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Side groove bottom forming plate 1a Convex end face 1b Concave end face 1c Convex protrusion 2 Inclined height adjustment nut 2a Hole 3 Inclined height adjustment bolt 4 Mortar injection hole a Reverse U-shaped side groove b Base concrete c Lock groove d Mortar

Claims (5)

[Claims] 1. A side groove bottom forming plate which forms the bottom of an inverted U-shaped side groove having an open bottom and is formed separately from the inverted U-shaped side groove, and an inclined height adjusting nut is provided on the side groove bottom forming plate. Providing a slope height adjusting bolt screwed to the slope height adjusting nut to adjust the slope height of the side groove bottom forming plate, forming a mortar injection hole in the side groove bottom forming plate, Is screwed into the inclination height adjusting nut to adjust the inclination height of the side groove bottom forming plate installed at the bottom of the inverted U-shaped side groove of the open bottom so that a constant gradient is formed on the side groove bottom forming plate. Characterized by an open bottomed inverted U
Side groove bottom forming plate for the U-shaped side groove. 2. The gutter bottom forming plate according to claim 1, wherein the slope height is adjusted in advance by a slope height adjusting bolt and a predetermined slope is provided on the base concrete, and the slope is provided with a predetermined slope. 2. A ready-made inverted U-shaped gutter main body is installed from above on the gutter bottom forming plate of claim 1 so that the gutter bottom forming plate becomes the bottom, and the inclined gutter bottom forming plate and the base concrete are inclined. Characterized in that mortar is injected from a mortar injection hole of the gutter bottom forming plate into the gap between the groove and the gap, and the gap is filled to perform the work.
Construction method of the letter-shaped gutter. 3. The open-bottomed inverted U of claim 1, wherein the front side of the side groove bottom forming plate has a shallow V-shaped cross section in the width direction and a slightly lower center in the longitudinal direction.
Side groove bottom forming plate for the U-shaped side groove. 4. One end of the side groove bottom forming plate is formed as a convex end surface whose thickness side end surface is slightly rounded, and the other end side of the opposite side of the side groove bottom forming plate has a separate thickness side end surface. 2. The side groove bottom forming plate of the open bottom inverted U-shaped side groove according to claim 1, wherein the side groove bottom forming plate is formed on a concave rounded concave end surface engaging with the convex end surface of the side groove bottom forming plate. 5. A side groove bottom formation of an open bottom inverted U-shaped side groove according to claim 1, wherein a downwardly rounded convex protrusion is formed on a lower surface on one end side of the side groove bottom formation plate. Board.