JP4471211B2 - Variable gutter and its laying method - Google Patents

Description

  The present invention relates to a variable gutter laid on, for example, a side of a road and a laying method thereof.

  Conventionally, as described in JP-A-10-140641, many patent applications have been made for variable side grooves, and many patents have been obtained.

  However, many of the variable gutters are of a type that is constructed by construction at the construction site, particularly for inverted concrete.

  When invert concrete is constructed in the field in this way, the variable side groove is placed on the foundation concrete, and then the mortar for invert concrete is placed through the hole provided in the upper wall of the variable side groove, After the concrete was formed, a grating lid for storing rainwater or a concrete lid was attached to the hole.

  However, the grating lid or concrete lid is damaged and removed due to long-term use, and the hole is exposed, or the mounting location between the grating lid or concrete lid and the variable side groove upper wall is damaged. There was a problem that the lid or the concrete lid rattled.

  Therefore, in recent years, without using a steel grating lid or concrete cover, a variable slit with a slit is used in many cases. ing.

  However, if the variable side groove with a slit is placed on the spot and the variable side groove with a slit is placed after placing the concrete on the spot as described above, there is no hole in the upper wall of the variable side groove with the slit. Cannot be placed.

Therefore, in recent years, the invert concrete is also manufactured in advance in the factory, and the invert concrete manufactured in the factory is fixed on the foundation concrete placed on site, and then the variable groove with slit is fitted between the invert concrete. It was laying down.
However, it is not preferable to transport heavy invert concrete to the site from the viewpoint of cost. Furthermore, when invert concrete is manufactured in advance at the factory, it has a uniform thickness, shape, and width. The problem was that invert concrete suitable for this, and in turn, variable lateral grooves could not be produced.
Japanese Patent Application Laid-Open No. 10-140641

Thus, the present invention was devised to cope with the above-described conventional problems, and even when using a variable side groove with a slit, the invert concrete can be smoothly and surely hit on-site, and each It is an object of the present invention to provide an excellent variable side groove and a variable side groove laying method capable of producing invert concrete suitable for the field, and thus excellent variable side grooves.

The present invention
A variable side groove main body having a substantially gate-shaped cross section, and an in-situ cast invert concrete laid at the bottom of the variable side groove main body,
On the upper wall of the variable groove main body, a slit that penetrates in the vertical direction at the approximate center in the width direction is provided in the longitudinal direction, and the both ends of the longitudinal direction are connected while maintaining the interval between the slits. The variable side groove body is a variable side groove formed with an interval holding part and a water introduction path in which the cross-sectional shape of the water guide channel forms a substantially concave shape when cut in the vertical direction toward the upper wall width direction of the main body.
In the upper wall, a rectangular work hole penetrating in the vertical direction and formed in such a size that the side leg upper surfaces 9, 9 of the variable side groove main body can be seen is formed in advance. The upper wall partial constituent block that closes the hole is fitted after invert concrete placement from the working hole, and is integrated with the upper wall,
The upper wall portion constituting block is provided with a slit located on the substantially same straight line as the slit provided on the upper wall of the variable side groove main body, and is connected while maintaining the interval of the slit. When cut in the vertical direction toward the block width direction, the interval holding part and water introduction path is formed in which the cross-sectional shape of the water conduit is substantially concave,
On the outer peripheral surfaces on both sides in the width direction of the upper wall partial constituent block, an adhesive injection groove capable of injecting an adhesive from the outside is provided by cutting the outer peripheral surface in the vertical direction, and communicates with the adhesive injection groove. Adhesive application groove was provided in the groove toward the outer peripheral surface longitudinal direction,
It is characterized by
Or
The adhesive application groove communicating with the adhesive injection groove and the adhesive injection groove is an outer surface on the working hole side of the variable side groove opposed to the outer peripheral surface of the upper wall partial constituent block instead of the upper wall partial constituent block. provided it is in,
Alternatively, both the adhesive injection groove and the adhesive application groove are provided in the upper wall portion constituting block, and are also provided on the outer surface of the variable side groove on the working hole side,
Alternatively, either one of the adhesive injection groove and the adhesive application groove communicating with the adhesive injection groove is provided on the upper wall portion constituting block, and the other is provided on the outer surface of the variable side groove on the working hole side,
It is characterized by
Or
A variable side groove main body having a substantially gate-shaped cross section, and an in-situ cast invert concrete laid at the bottom of the variable side groove main body,
On the upper wall of the variable groove main body, a slit that penetrates in the vertical direction at the approximate center in the width direction is provided in the longitudinal direction, and the both ends of the longitudinal direction are connected while maintaining the interval between the slits. The variable side groove body is a variable side groove formed with an interval holding part and a water introduction path in which the cross-sectional shape of the water guide channel forms a substantially concave shape when cut in the vertical direction toward the upper wall width direction of the main body.
In the upper wall, a rectangular work hole penetrating in the vertical direction and formed in such a size that the side leg upper surfaces 9, 9 of the variable side groove main body can be seen is formed in advance. The upper wall partial constituent block that closes the hole is fitted after invert concrete placement from the working hole, and is integrated with the upper wall,
The upper wall portion constituting block is provided with a slit located on the substantially same straight line as the slit provided on the upper wall of the variable side groove main body, and is connected while maintaining the interval of the slit. When cut in the vertical direction toward the block width direction, the interval holding part and water introduction path is formed in which the cross-sectional shape of the water conduit is substantially concave,
The outer peripheral surface of the working hole is formed in a steeply descending slope so that the hole becomes larger from the upper surface side to the lower surface side of the upper wall, and the outer peripheral surface of the upper wall partial constituent block is also the working surface. The hole is formed so as to have an inclination parallel to the inclination of the outer peripheral surface of the hole, and the length in the width direction of the upper wall part constituting block is such that a gap is formed between the work hole and the upper wall part constituting block. Formed shorter than the length in the width direction of the hole ,
The upper wall portion constituting block is placed close to one side of the working hole, and a gap block is fitted into the gap formed on the other side, and the work hole and the upper wall portion constituting block are bonded. The agent is injected into a mortar wedge,
It is characterized by
Or
A variable side groove main body having a substantially gate-shaped cross section, and an in-situ cast invert concrete laid at the bottom of the variable side groove main body,
On the upper wall of the variable groove main body, a slit that penetrates in the vertical direction at the approximate center in the width direction is provided in the longitudinal direction, and the both ends of the longitudinal direction are connected while maintaining the interval between the slits. The variable side groove body is a variable side groove formed with an interval holding part and a water introduction path in which the cross-sectional shape of the water guide channel forms a substantially concave shape when cut in the vertical direction toward the upper wall width direction of the main body.
In the upper wall, a rectangular work hole penetrating in the vertical direction and formed in such a size that the side leg upper surfaces 9, 9 of the variable side groove main body can be seen is formed in advance. The upper wall partial constituent block that closes the hole is fitted after invert concrete placement from the working hole, and is integrated with the upper wall,
The upper wall portion constituting block is provided with a slit located on the substantially same straight line as the slit provided on the upper wall of the variable side groove main body, and is connected while maintaining the interval of the slit. When cut in the vertical direction toward the block width direction, the interval holding part and water introduction path is formed in which the cross-sectional shape of the water conduit is substantially concave,
Grooves that are continuous in the longitudinal direction are formed on the outer peripheral surface of the working hole, and convex lines that are continuous in the longitudinal direction corresponding to the grooves of the working hole are formed on the outer peripheral surface of the upper wall partial constituent block. And the length in the width direction of the upper wall portion constituting block is shorter than the length in the width direction of the work hole so that a gap is formed between the work hole and the upper wall portion constituting block ,
The upper wall portion constituting block is moved to one side of the working hole, and the protruding strips are opposed to the grooves leaving a gap, and an adhesive is formed in the gap and the gap formed on the other side. Injected into a mortar wedge,
It is characterized by
Or
After placing the foundation concrete at the excavated location, the variable side groove according to claim 1, 2, 3, or 4 is placed on the foundation concrete, and then on the upper wall of the variable side groove. Concrete for invert concrete was placed from a work hole formed in advance, and then the upper wall part constituting block was fitted into the work hole and fixed and integrated.
It is characterized by this.

With the variable side groove and the variable side groove laying method according to the present invention, even when using a variable side groove with a slit, the invert concrete can be hit in place smoothly and surely, so that it is suitable for each site. It has an excellent effect that concrete and, in turn, excellent variable side grooves can be produced.

  Embodiments of the present invention will be described below with reference to the drawings.

  The variable side groove 1 according to the present invention includes a concrete variable side groove main body 2 having a substantially gate-shaped cross section, and an on-site cast-in type invert concrete 3 laid under the variable side groove main body 2.

  The upper wall 4 of the variable groove main body 2 is provided with slits 5 that extend linearly at the center in the width direction and penetrate in the vertical direction. Is provided with an interval holding part / water introduction path 6 for holding and connecting the gaps of the slits 5 and holding the strength of the variable groove main body 2 so as not to bend from the slits 5 part.

In addition, the gap holding part / water introduction path 6 is formed to have a substantially concave cross section so that rainwater from the outside can be smoothly introduced into the slit 5 and further introduced into the variable side groove.
Here, the slit 5 is configured to communicate with the outer side of the upper wall 4 of the variable side groove main body 2 and the inner side of the upper wall 4, and from the upper slit opening on the surface of the upper wall 4 toward the lower slit opening. The slit opening width is provided in an expanded form.

  By the way, in the present invention, a large rectangular work hole 7 penetrating in the vertical direction in the upper wall 4 of the variable side groove main body 2 is formed in advance.

  The method for forming the working hole 7 is not limited at all, but in general, a mold for forming the working hole 7 is added by improving the mold for forming the variable side groove main body 2, and this addition It is conceivable to use the formed mold of the variable groove main body 2 with the working hole forming mold.

  As can be seen from the figure, the working hole 7 is formed to have a considerable size from the center of the upper wall 4 to the outside, and is particularly located on the width direction end side of the working hole 7. The side legs 8 and 8 upper surfaces 9 and 9 of the variable side groove main body 2 are sized so as to be visible on the lower side. .

  In addition, the outer peripheral surface 10 of the work hole 7 is formed to have a steep downward slope from the upper part to the lower part of the upper wall 4.

  Then, an upper wall portion constituting block 11 that closes the working hole 7 is fitted into the working hole 7 after being placed with invert concrete, and is connected and integrated.

  Here, the upper wall portion constituting block 11 is provided with a slit 12 communicating with the slit 5 provided on the upper wall 4 of the variable side groove main body 2, and is connected while maintaining an interval between the slits 12. In addition, an interval holding part / water introduction path 13 is also formed so as to maintain the strength of the upper wall part constituting block 11 so as not to bend from the slit 5 part.

  Moreover, the gap holding part / water introduction path 13 is formed in a substantially concave shape in cross section so that rainwater from the outside can be smoothly introduced into the variable side groove.

Here, an adhesive injection groove 14 is provided on the outer peripheral surface of the upper wall partial constituent block 11 so that the adhesive can be easily injected from the outside. An adhesive application groove 15 communicating with the adhesive injection groove 14 is provided over the entire outer peripheral surface.
Thus, the detailed attachment position of the adhesive injection groove 14 or the adhesive application groove 15 is not limited at all, and various patterns are conceivable as shown in the figure.

  Further, the adhesive injection groove 14 or the adhesive application groove 15 may be formed not on the upper wall portion constituting block 11 side but on the variable side groove body 2 side.

  In the above, the construction method of the variable side groove | channel by this invention is demonstrated.

  First, a site where the variable gutter 1 is to be laid is excavated on site. Next, after placing the foundation concrete 16 in the excavated portion, the variable side groove 1 with slits according to the present invention is placed on the foundation concrete 16 that has been placed.

  Thereafter, concrete for the invert concrete 3 is placed from the working hole 7 formed in the upper wall 4 of the variable side groove 1 with slit.

  At this time, as described above, the working hole 7 is considerably large, so that the inside of the variable side groove 1 can be seen well from above, and the concrete placing work for the invert concrete 3 can be easily performed.

Further, depending on the location of the variable side groove 1, the thickness of the invert concrete 3 to be formed in the variable side groove main body must be changed at both ends in the width direction, or a water channel groove must be formed at the center in the width direction. In some cases, the work can be done smoothly.
After the placing work of the invert concrete 3 is finished, the upper wall partial constituting block 11 is fitted into the working hole 7.

  Instead of attaching an iron grating lid or concrete lid to the working hole 7 as in the prior art, the upper wall 4 has a variable side groove 1 with a slit in which only a normal slit 5 is provided.

  Therefore, after the upper wall portion constituting block 11 is fitted into the working hole 7, an adhesive such as slurry mortar is injected from the adhesive injection groove 14.

  As can be understood from the figure, an adhesive application groove 15 provided over the outer peripheral surface of the upper wall portion constituting block 11 communicates with the adhesive injection groove 14. For example, when an adhesive such as slurry mortar is injected, the adhesive is applied over the entire adhesive application groove 15.

  In addition, both the adhesive injection groove 14 and the adhesive application groove 15 or either the adhesive injection groove 14 or the adhesive application groove 15 communicating with the adhesive injection groove are opposed to the outer peripheral surface of the upper wall part constituting block 11. It can also be provided on the outer peripheral surface of the variable side groove 1 on the working hole 7 side.

  7 to 18 will be described with reference to another embodiment of the present invention.

  As can be understood from FIGS. 7 and 8, the working hole 7 is formed in a so-called reverse taper shape so as to increase in size from the upper surface side toward the lower surface side, and is fitted into the working hole 7. The outer peripheral surface of the partial component block 11 is also formed to have a taper from the upper surface side toward the lower surface side.

  As a result, an adhesive such as a slurry mortar injected into the gap functions as a so-called mortar wedge, and can prevent the upper wall portion constituting block 11 from being detached upward. As shown in FIG. 8 and the like, the present invention is also applied to a variable side groove of a type in which the upper wall 4 does not have the slit 5.

  Further, if the adhesive injection groove 14 and the adhesive application groove 15 having the shapes as shown in FIGS. 9 and 10 are formed, an adhesive such as a slurry mortar also functions as a so-called mortar wedge, and the upper wall portion configuration. The upper separation of the block 11 can be prevented.

  Further, in FIGS. 11 and 12, the upper wall portion constituting block 11 is firmly engaged with the working hole 7 so that the upper wall portion constituting block 11 is not further separated upward. That is, in the example shown in FIG. 11, similarly to FIG. 8, the work hole 7 is formed in a so-called reverse taper shape so as to become larger from the upper surface side toward the lower surface side, and is fitted into the work hole 7. The outer peripheral surface of the upper wall partial component block 11 is also formed to have a taper from the upper surface side toward the lower surface side.

  However, the difference from FIG. 8 is that the upper wall portion constituting block 11 is formed to be short in the width direction and is placed close to one side of the working hole 7 and, as understood from FIG. The gap block 17 is fitted into the large gap generated in the above or a gap mortar is injected to form a strong engagement.

  Next, the outer peripheral surface of the working hole 7 and the outer peripheral surface of the upper wall partial constituent block 11 are formed in the shapes shown in FIGS. 15 to 18, respectively, and gap mortar is injected into these gaps, and FIGS. As in the example shown in FIG. 2, the upper wall portion constituting block 11 is formed so as not to be separated upward as a firm engagement.

Further, as a variation of FIGS. 9 and 10, it is conceivable to form the adhesive injection groove 14 as shown in FIGS. 13 and 14.

FIG. 3 is a configuration explanatory view (part 1) illustrating a variable side groove according to the present invention with a partial cross section. FIG. 5 is a configuration explanatory diagram (part 2) illustrating the variable side groove according to the present invention with a partial cross section. It is the structure explanatory view (the 1) explaining the composition of an upper wall part composition block. It is explanatory drawing explaining the fitting state of the upper wall partial structural block to a variable side groove | channel main body. It is a structure explanatory view (top view) explaining the structure of the variable side groove | channel by this invention. It is the structure explanatory view (the 2) explaining the composition of an upper wall portion composition block. It is the structure explanatory view (the 1) explaining other composition of the variable side slot by the present invention. FIG. 6 is a configuration explanatory view (No. 2) illustrating another configuration of the variable side groove according to the present invention. FIG. 6 is a configuration explanatory view (No. 3) illustrating another configuration of the variable side groove according to the present invention. FIG. 10 is a configuration explanatory view (No. 4) illustrating another configuration of the variable side groove according to the present invention. FIG. 10 is a configuration explanatory view (No. 5) illustrating another configuration of the variable side groove according to the present invention. FIG. 6 is a configuration explanatory view (No. 6) illustrating another configuration of the variable side groove according to the present invention. FIG. 10 is a configuration explanatory view (No. 7) illustrating another configuration of the variable side groove according to the present invention. FIG. 12 is a configuration explanatory view (No. 8) illustrating another configuration of the variable side groove according to the present invention. FIG. 9 is a configuration explanatory view (No. 9) illustrating another configuration of the variable side groove according to the present invention. It is a structure explanatory view (the 10) explaining other composition of a variable side slot by the present invention. It is a structure explanatory view (the 11) explaining other composition of a variable side slot by the present invention. It is structure explanatory drawing (the 12) explaining other structures of the variable side groove | channel by this invention.

1 Variable side groove
2 Variable side groove main body 2 Invert concrete 3 Slit 4 Upper wall 5 Slit 6 Spacing holding rod / introduction path 7 Work hole 8 Side leg 9 Side leg upper surface 10 Work hole outer peripheral surface 11 Upper wall partial component block 12 Slit 13 Spacing Grain and introduction path 14 Adhesive injection groove 15 Adhesive application groove 16 Basic concrete 17 Gap block

Claims (5)

A variable side groove main body having a substantially gate-shaped cross section, and an in-situ cast invert concrete laid at the bottom of the variable side groove main body,
On the upper wall of the variable groove main body, a slit that penetrates in the vertical direction at the approximate center in the width direction is provided in the longitudinal direction, and the both ends of the longitudinal direction are connected while maintaining the interval between the slits. The variable side groove body is a variable side groove formed with an interval holding part and a water introduction path in which the cross-sectional shape of the water guide channel forms a substantially concave shape when cut in the vertical direction toward the upper wall width direction of the main body.
In the upper wall, a rectangular work hole penetrating in the vertical direction and formed in such a size that the upper surface of the side leg of the variable side groove main body is visible is previously drilled, and the work hole is closed. The upper wall part constituting block is fitted after invert concrete placement from the work hole, connected to the upper wall and integrated,
The upper wall portion constituting block is provided with a slit located on the substantially same straight line as the slit provided on the upper wall of the variable side groove main body, and is connected while maintaining the interval of the slit. When cut in the vertical direction toward the block width direction, the interval holding part and water introduction path is formed in which the cross-sectional shape of the water conduit is substantially concave,
On the outer peripheral surfaces on both sides in the width direction of the upper wall partial constituent block, an adhesive injection groove capable of injecting an adhesive from the outside is provided by cutting the outer peripheral surface in the vertical direction, and communicates with the adhesive injection groove. Adhesive application groove was provided in the groove toward the outer peripheral surface longitudinal direction,
A variable lateral groove characterized by that.
The adhesive application groove communicating with the adhesive injection groove and the adhesive injection groove is an outer surface on the working hole side of the variable side groove opposed to the outer peripheral surface of the upper wall partial constituent block instead of the upper wall partial constituent block. provided it is in,
Alternatively, both the adhesive injection groove and the adhesive application groove are provided in the upper wall partial constituent block, and are also provided on the outer surface of the variable side groove on the working hole side,
Alternatively, either one of the adhesive injection groove and the adhesive application groove communicating with the adhesive injection groove is provided on the upper wall portion constituting block, and the other is provided on the outer surface of the variable side groove on the working hole side,
The variable side groove according to claim 1, wherein:
A variable side groove main body having a substantially gate-shaped cross section, and an in-situ cast invert concrete laid at the bottom of the variable side groove main body,
On the upper wall of the variable groove main body, a slit that penetrates in the vertical direction at the approximate center in the width direction is provided in the longitudinal direction, and the both ends of the longitudinal direction are connected while maintaining the interval between the slits. The variable side groove body is a variable side groove formed with an interval holding part and a water introduction path in which the cross-sectional shape of the water guide channel forms a substantially concave shape when cut in the vertical direction toward the upper wall width direction of the main body.
In the upper wall, a rectangular work hole penetrating in the vertical direction and formed in such a size that the upper surface of the side leg of the variable side groove main body is visible is previously drilled, and the work hole is closed. The upper wall part constituting block is fitted after invert concrete placement from the work hole, connected to the upper wall and integrated,
The upper wall portion constituting block is provided with a slit located on the substantially same straight line as the slit provided on the upper wall of the variable side groove main body, and is connected while maintaining the interval of the slit. When cut in the vertical direction toward the block width direction, the interval holding part and water introduction path is formed in which the cross-sectional shape of the water conduit is substantially concave,
The outer peripheral surface of the working hole is formed in a steeply descending slope so that the hole becomes larger from the upper surface side to the lower surface side of the upper wall, and the outer peripheral surface of the upper wall partial constituent block is also the working surface. The hole is formed so as to have an inclination parallel to the inclination of the outer peripheral surface of the hole, and the length in the width direction of the upper wall part constituting block is such that a gap is formed between the work hole and the upper wall part constituting block. Formed shorter than the length in the width direction of the hole ,
The upper wall portion constituting block is placed close to one side of the working hole, and a gap block is fitted into the gap formed on the other side, and the work hole and the upper wall portion constituting block are bonded. The agent is injected into a mortar wedge,
A variable lateral groove characterized by that.
A variable side groove main body having a substantially gate-shaped cross section, and an in-situ cast invert concrete laid at the bottom of the variable side groove main body,
On the upper wall of the variable groove main body, a slit that penetrates in the vertical direction at the approximate center in the width direction is provided in the longitudinal direction, and the both ends of the longitudinal direction are connected while maintaining the interval between the slits. The variable side groove body is a variable side groove formed with an interval holding part and a water introduction path in which the cross-sectional shape of the water guide channel forms a substantially concave shape when cut in the vertical direction toward the upper wall width direction of the main body.
In the upper wall, a rectangular work hole penetrating in the vertical direction and formed in such a size that the upper surface of the side leg of the variable side groove main body is visible is previously drilled, and the work hole is closed. The upper wall part constituting block is fitted after invert concrete placement from the work hole, connected to the upper wall and integrated,
The upper wall portion constituting block is provided with a slit located on the substantially same straight line as the slit provided on the upper wall of the variable side groove main body, and is connected while maintaining the interval of the slit. When cut in the vertical direction toward the block width direction, the interval holding part and water introduction path is formed in which the cross-sectional shape of the water conduit is substantially concave,
Grooves that are continuous in the longitudinal direction are formed on the outer peripheral surface of the working hole, and convex lines that are continuous in the longitudinal direction corresponding to the grooves of the working hole are formed on the outer peripheral surface of the upper wall partial constituent block. And the length in the width direction of the upper wall portion constituting block is shorter than the length in the width direction of the work hole so that a gap is formed between the work hole and the upper wall portion constituting block ,
The upper wall portion constituting block is moved to one side of the working hole, and the protruding strips are opposed to the grooves leaving a gap, and an adhesive is formed in the gap and the gap formed on the other side. Injected into a mortar wedge,
A variable lateral groove characterized by that.
After placing the foundation concrete at the excavated location, the variable side groove according to claim 1, 2, 3, or 4 is placed on the foundation concrete, and then on the upper wall of the variable side groove. Concrete for invert concrete was placed from a work hole formed in advance, and then the upper wall part constituting block was fitted into the work hole and fixed and integrated.
A variable gutter laying method characterized by this.

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