JPH0565648B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a technique for covering a wall surface with a decorative board for beautifying a riverbank. This invention relates to a method for covering river banks with concrete decorative boards and precast concrete decorative boards for the decoration of river banks.

[Conventional technology]

Traditionally, the method of beautifying riverbank walls has been to cast concrete on the existing riverbank surface, but in the case of cast-in-place concrete, the finished surface is monotonous and lacks interest. As a method of creating a surface effect such as masonry or mosaic, a method of pasting natural stones or decorative blocks on the surface of an existing pile-type concrete revetment is often used. In other words, these beautification construction methods for riverbank walls require concrete to be poured on-site as shown in FIG. The pile type concrete revetment 50 is installed in parallel and drained by the drainage pump 52.
The cast-in-place concrete forms 53 were constructed along the lines.

[Problem that the invention seeks to solve]

Therefore, according to the above-mentioned construction method, the process of attaching or removing the temporary cofferdam sheet pile 51 to exclude river water from the construction area is required during construction, which increases the number of man-hours and, in the case of cast-in-place concrete, reduces the finish quality. The surface becomes monotonous and lacks taste, while the method of pasting natural stones or decorative blocks has the problem of requiring a great deal of labor.

The present invention has been developed in view of the above problems, and can be constructed in a short time and easily by taking advantage of the tidal difference in the water surface. The purpose of the present invention is to provide a concrete decorative board for the beauty of a riverbank wall that can be formed, and at the same time to propose a method for covering a riverbank wall with a precast concrete decorative board.

[Means for solving problems]

The decorative concrete board for riverside walls according to the present invention is formed by pasting a natural stone board on the surface or forming a decorative surface portion expressing a desired pattern, and is an appropriate unit formed by arranging reinforcing bars within the thickness of the board. On the back side of the concrete plate constituting the surface shape, a band-shaped groove extending in the width direction is formed in at least one place, and the upper edge of the band-shaped groove is fixed to the existing pile-type concrete revetment surface or the concrete filling in between. It has a structure in which a locking rod, which constitutes an engagement edge that engages in the vertical direction with an angle-shaped mounting bracket that extends in the horizontal direction, is fixedly attached.

In addition, the method of covering a river bank wall using a precast concrete decorative board of the present invention involves drilling an anchor hole in the existing pile-type concrete revetment surface or the concrete filling in between, and attaching an angle shape extending laterally to the anchor hole. Fix the metal fittings at predetermined intervals via anchor metal fittings, attach a natural stone plate to the surface or form a decorative surface section expressing the desired pattern, and install reinforcing bars within the thickness of the plate as appropriate. Engaging a hanging rod protruding from the back side of a pre-manufactured concrete decorative board for riverside wall decoration with a surface shape,
After the concrete decorative board for beautifying the river bank wall is installed in parallel to cover the existing pile-type concrete revetment surface vertically and horizontally, mortar is filled into the gap between the existing packed pile-type concrete revetment surface and the concrete decorative board for the beautification of the river bank wall. The purpose is to solidify the water and cover the riverbank walls.

[Effect]

Therefore, in the river bank wall covering method using precast concrete decorative board according to the present invention, anchor holes are drilled in the existing pile-type concrete revetment surface or infill concrete, and mounting brackets are fixed to the anchor holes. work, and work of suspending a concrete decorative board for riverside wall beautification from the mounting bracket;
On-site construction is completed by filling mortar into the gap between the existing pile-type concrete revetment surface and the decorative concrete panel for river wall decoration, so this is especially important for river banks where the water level fluctuates quickly depending on the tide. In wall covering construction, there is no need to drive temporary cofferdam sheet piles to exclude river water, and the work can be completed in a short time according to the tide level.

In addition, the decorative concrete board for riverside walls of the present invention can not only be configured to have various tastes, such as having a natural stone board attached to the decorative surface portion of the surface or expressing a desired pattern, but also Since it is manufactured in a factory, production costs can be reduced.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 3 show an embodiment of a concrete decorative board for beautifying a river bank wall.

This embodiment is constructed based on the image of "stone masonry", and reinforcing bars 3 are provided within the thickness of a concrete plate 2 having a predetermined vertical and horizontal unit length, and a welded wire mesh 4 is attached to the reinforcing bars 3. This is a welded precast decorative board 1. Band-shaped grooves 5, 5 extending laterally are formed on the back surface of the concrete plate 2, and each upper edge of the band-shaped groove 5 has a downward engaging edge whose inner end is welded to the welded wire mesh 4. It is formed by protruding a hanging rod 6 with a holder 7, and a decorative surface part 9 in which a large number of natural stone thin plates 8, 8, . . . are arranged in parallel is formed on the front side of the concrete plate 2.

Moreover, FIGS. 4 to 6 show an embodiment of the mounting bracket 10, and a supporting rod 12 that is erected and fixed to the midsection of an angular vertical rod 11 has an angular shape of an appropriate length extending in the horizontal direction. Attach the latch arm 13 to the bolt/nut 1
4, and an anchor insertion hole 15 is bored in the center of the upper part of the vertical rod 11.

Next, a method of covering a river bank wall with a precast concrete decorative board will be explained in the order of steps with reference to FIGS. 7 to 10.

The precast decorative board 1 is installed by engaging the engaging edge 7 of the retaining rod 6 fixed on the back side with the retaining arm 13 of the mounting bracket 10. First, as shown in FIG. 7 or FIG. 8, Existing concrete pile type revetment 3
An anchor hole 16 is bored in the compacted concrete 31 or the concrete revetment 30, and an anchor fitting such as a hole-in anchor 17 is inserted into the anchor hole 16, and an epoxy resin adhesive 18 is applied.
An anchor insertion hole 15 formed in the vertical rod 11 of the mounting bracket 10 is fastened and fixed through the hole-in anchor 17. At this time, the locking arm 13 is installed so as to be approximately horizontal.

In this state, as shown in FIG. 9, the precast decorative board 1 is lowered while suspended from the river bank so that the engaging edge 7 of the hanging rod 6 of the precast decorative board 1 is hooked to the locking arm 13. After they are engaged, mortar 19 is filled in the gap G between the existing pile type concrete revetment 30 and the precast concrete decorative board 1, and the mortar 19 is solidified and fixedly coated.

In addition, when suspending the precast concrete decorative board 1, as shown in FIG. The dedicated gondola 20 has a workbench 21 suspended from the construction surface of the existing pile-type concrete revetment 30.
It is configured to be movable in the lateral direction of the revetment surface by a plurality of casters 23, 23, etc. mounted on the upper and lower parts of the column 22, and a lifting device such as a chain block (not shown) attached to the top of the column 22 ), the precast concrete decorative board 1 can be suspended and moved to a predetermined position.

〔Effect of the invention〕

As mentioned above, in the river bank wall covering method using precast concrete decorative board according to the present invention,
Even when covering a river bank wall where the water level fluctuates in a short time depending on the tide level, there is no need to install temporary cofferdam sheet piles to exclude river water, and the work can be done in a short time according to the tide level. In addition, the decorative concrete board for riverside walls of the present invention not only can be configured to have various tastes by changing the decorative surface portion of the surface, but also can be manufactured in a factory. Therefore, the practical effects of implementing the present invention are extremely large.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an example of the concrete decorative board for riverbank wall decoration, Fig. 2 is a rear view of the same precast concrete decorative board, and Fig. 3 is an enlarged sectional view of the main part in Fig. 2. Figure 4 is a front view showing one embodiment of the mounting bracket, Figure 5 is a plan view of the same, Figure 6 is a right side view of the same, and Figures 7 and 8 are plan views of main parts showing an example of fixing the mounting bracket. Figure 9 is an enlarged cross-sectional view of the main part showing the precast concrete decorative board in a hooked and covered state, Figure 10 is a side view of a construction gondola, and Figure 11 is an explanatory diagram showing the conventional construction method. . 1... Precast decorative board, 2... Concrete board, 3... Rebar, 4... Welded wire mesh, 5... Band-shaped groove, 6... Hanging rod, 8... Natural stone thin plate, 9... Decorative surface part, 10...Mounting bracket, 11...Vertical rod, 12
... Support rod, 13 ... Hanging arm, 15 ... Anchor insertion hole, 16 ... Anchor hole, 17 ... Hole-in anchor, 20 ... Special gondola, 30 ... Existing pile type concrete revetment.

Claims (1)

[Claims] 1. A natural stone plate is pasted on the surface or a decorative surface portion expressing a desired pattern is formed, and reinforcing bars are arranged within the thickness of the plate to form an appropriate unit surface shape. On the back side of the concrete plate, a band-shaped groove extending in the width direction is formed at least in one place, and at the upper edge of the band-shaped groove, it is fixed to the existing pile-type concrete revetment surface or the filling concrete and extending in the horizontal direction. A concrete decorative board for beautifying a river bank wall, characterized in that a hanging rod is fixed along the side of the board, and the hook constitutes an engaging edge that engages in the vertical direction with an angle-shaped mounting bracket. 2. Drilling anchor holes in the existing pile-type concrete revetment surface or the concrete filling between them, and fixing angle-shaped mounting fittings extending laterally to the anchor holes at predetermined intervals via the anchor fittings, Pre-manufactured concrete decorative concrete for beautifying riverside walls, consisting of natural stone slabs pasted on the surface or a decorative surface section expressing a desired pattern, and reinforcing bars arranged within the thickness of the slab to form an appropriate unit surface shape. After engaging the hanging rods protruding from the back side of the board and installing the concrete decorative board for river wall beautification vertically and horizontally on the existing pile-type concrete revetment surface, A method of covering a river bank wall using precast concrete decorative boards, which is characterized by filling gaps between decorative concrete boards for river bank walls with mortar and solidifying it.