JPH083457Y2 - Water revetment construction for hydrophilic rivers - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water revetment structure for hydrophilic rivers, and more particularly to a revetment work in which a filling stone is placed on the river bank from the riverbed to the embankment.

[0002]

2. Description of the Related Art In riverbeds and banks of riverbanks, when constructing a seawall to protect against erosion due to running water or waves, flexible gabions and futon baskets are often used. . A gabion is usually a bag-shaped body in which wire mesh is filled with stones, and many of them are installed in parallel from the riverbed near the riverbank to the slope of the embankment. In addition, the futon basket is made by filling a box-shaped wire mesh with stones and stacking it from the riverbed to the slope of the embankment.

[0003]

[Problems to be Solved by the Invention] By the way, the gabion is designed on the premise of the work of filling stones by human power, and the diameter of the charging port for filling the cobblestones is small, resulting in poor work efficiency. Therefore, recently, it is often used only for small-scale revetment work. On the other hand, if a gabion or a futon basket is used for a large-scale revetment work, a great deal of labor will be required not only for the work of the stones but also for the revetment work itself. That is, when a gabion or a futon basket is used, it is difficult to handle the gabion or the futon basket with a backhoe or a bucket, and it is often difficult to perform construction using such a machine. Even if mechanized work is possible, in the case of a futon basket, when a filling stone is put in, the partition wall etc. provided on the revetment work will be significantly deformed, making it very difficult to install the lid net. There is. Therefore, when the seawall construction is large,
It is sometimes called a block revetment, but due to the high cost of materials and the large blocks that require the use of a large-scale crane, it is limited in terms of construction period and cost. There is. In addition, it may damage the landscape of the riverbank, so it is desirable to develop a revetment work with a net structure that can maintain the natural landscape with inexpensive materials. The present invention has been made in view of the above problems, and its purpose is to mechanize the construction of revetment construction work regardless of the size, to enable continuous stone filling work, and revetment construction work according to scale. To be a revetment construction component that has a flexible response so that it can be used, and to be a revetment that can adapt to small ups and downs such as river beds and also maintain a natural landscape The purpose is to provide a revetment structure for hydrophilic rivers that realizes.

[0004]

The present invention is applied to a revetment structure constructed as a revetment for protecting river beds, banks, and levees from erosion due to running water. The feature is that, with reference to the drawings, a plurality of ring-shaped hooks 4a and 4b that are curled at the row line ends 4m and 4n (see FIG. 1) of the diamond-shaped wire mesh are installed in the revetment installation area. You
Insert the bone wire 6 into the ring-shaped hooks 4a and 4b for
Bottom grid 4 is provided et al are to be mutually connected. Ring-shaped hook 7
a to 7d (see FIG. 4) are formed on the edge, and the ring-shaped flap is formed.
Insert the bone wire 6 (see FIG. 6) into the hooks 7c and 7d, and the left and right edges
The parts are connected to each other and the filling stone 9 is placed on the bottom net 4 (see FIG. 8).
Vertically and horizontally and vertically in order to define a ward image section 10 you put
A ring-shaped hook that is placed and formed on the lower edge
7b (see FIG. 4) and the bottom net 4 to insert the bone wire 6 into the bottom net 4
A plurality of concrete partition plates 7 (see FIG. 4) connected to
Is prepared . Their to, diamond wire mesh column line ends 13m, 1
A section in which a plurality of ring-shaped hooks 13a and 13b curled to 3n (see FIG. 1) are provided and the filling stone 9 is put therein
The ring-shaped hooks 13a and 13b are covered with bone lines to cover the part 10.
6 and are connected to each other, and
The bone wire 6 is attached to the ring-shaped hook 7a provided at the upper edge of the wall plate 7.
A lid net 1 which is inserted through and is connected to a concrete partition plate 7.
3 is used. The concrete partition plate 7
Alternatively, an opening 16 (see FIG. 4) for passing running water may be provided. Instead of the concrete partition plate 7 described above, a welded reinforcing bar partition plate 17 shown in FIG. 13 may be used.

[0005]

[Function] A large number of bottom nets 4 are temporarily placed in an area targeted for revetment work. Then, the bone wire 6 is inserted and connected to the ring-shaped hooks 4a and 4b formed at the column line ends 4m and 4n of the adjacent bottom nets 4A and 4B. The concrete partition plate 7 is installed vertically and horizontally on the upper surface of the laid bottom net 4 (see FIG. 9). Then, a plurality of ring-shaped hooks 7b attached to the lower surface of each concrete partition wall plate 7 and the bottom net 4
The ring-shaped hooks 4a and 4b are overlapped (see FIG. 6) and the bone line 6 is inserted. Further, ring-shaped hooks 7c and 7d provided on the side edge portions of the adjacent concrete partition walls 7A and 7B are overlapped with each other, and the bone line 6 is also inserted therein. In this way, the partition 10 is formed by the concrete partition plates 7 and 7 fixed to the bottom nets 4 and 4 (see FIG. 9).
reference). Next, the filling stone 9 is put into each partition 10 with the bucket 12 (see FIG. 8). At that time, the rigidity of the concrete partition wall plate 7 surrounding the partition 10 is high, and even if the concrete partition plate 7 receives a shock due to the throwing of the filling stone 9 or the pressing force of the thrown filling stone 9, Does not deform like a futon basket. A plurality of lid nets 13 are placed on the upper surface of the concrete partition plate 7 in order to prevent the outflow of the filling stones 9 put into the compartment 10. And the adjacent lid nets 13A, 13B
The bone wire 6 is connected through the ring-shaped hooks 13a and 13b (see FIG. 1). Where the concrete partition plate 7 is located, the ring-shaped hook 7a attached to the upper edge of the concrete partition plate 7 and the ring-shaped hooks 13a, 13 of the lid net 13 are provided.
The bone wire 6 is inserted through b and the lid net 13 is fixed to the concrete partition plate 7 (see FIG. 7). In the revetment completed in this way, if the concrete partition plate 7 having the opening 16 shown in FIG. 4 is erected on the bottom net 4 of the river bed 2 or the like, it will flow between the filling stones 9, 9. The movement of running water can be promoted. Even if a welded reinforcing bar partition plate 17 (see FIG. 13) is used instead of the concrete partition wall plate 7 described above, it is possible to realize a water revetment structure for hydrophilic rivers in the same manner as when the concrete partition wall plate 7 is adopted. it can.

[0006]

EFFECTS OF THE INVENTION According to the present invention, a large number of lozenge-shaped wire nets can be easily laid and connected to each other over the entire surface of the riverbank in the vicinity of the riverbank, which is the target area for revetment work, and the bank.
Highly rigid concrete partition plates are installed vertically and horizontally on the top surface of the bottom net, and they can be easily fixed to the bottom net by connecting to each other with bone lines, and quickly form compartments for filling filling stones. be able to. Even if the scale of revetment works is different, if the number of bottom nets, concrete partition plates and lid nets to be used is appropriately selected, the construction work can be performed in the same manner, and the commonization and mass production of the components can be achieved. To be Then, by using a machine such as a backhoe or a bucket, the filling stones can be continuously and efficiently loaded into each compartment, and the mechanized loading work can speed up the revetment work. The concrete partition plate of each partition where the filling stones are thrown in does not deform due to the impact at the time of throwing in and the pressing force of the filling stones unlike the conventional futon basket, and is extremely strong as a revetment structure. , It will not lose its shape. The concrete partition plate forming each partition part has less deformation during construction than the partition plate of the futon basket, and the lid net for preventing the outflow of the filling stone can be easily fixed. Since the bottom net and lid net are rhombic metal nets, they can adapt to small undulations such as riverbeds and the ground of levees without losing the flexibility required for revetment structures, and their erosion is sufficiently suppressed. In this way, the overall work of the revetment work can be simplified, labor-saving, and speeded up, the construction period can be greatly shortened, the construction cost can be reduced, and the natural landscape of the river by the revetment work can be maintained. In addition, if an opening is provided in the concrete partition plate, the running water between the filling stones can be smoothly circulated, and the erosion due to running water or waves can be further prevented,
Also, the fresh water condition is maintained. Even if a welded reinforcing bar partition plate is used in place of the above concrete partition plate, the same effect as when the concrete partition plate is adopted is exhibited.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on its embodiments. A bottom net 4 is laid along a bank 3 that rises diagonally from a river bed 2 near the riverbank 1 shown in FIG. 3. The bottom net 4 has a large number of row lines 5 twisted as shown in FIG. Combined diamond-shaped wire mesh is used. One piece of bottom net 4 has an appropriate area, and column line ends 4m and 4n of the bottom nets 4A and 4B are curled to form ring-shaped hooks 4a and 4b composed of, for example, two turns. Is forming. Therefore, the adjacent two bottom nets 4A and 4B face each other by inserting the rod-shaped bone wire 6 after the ring-shaped hooks 4a and 4b are aligned so as to match at the connection position as shown in FIG. The column line ends 4m and 4n are easily connected. That is, if the bottom net 4 is sequentially connected in four directions, as shown in FIG. 3, it can be expanded to cover the construction area of the revetment work. FIG. 4 shows a single rectangular concrete partition plate 7 with reinforcing bars, for example, a height of 0.
It is molded to have a length of 7 m, a length of 2.5 m, and a thickness of 0.2 m, and is fixed in an upright position on the upper surface of the bottom net 4 laid as shown in FIG. Therefore, the ring-shaped hooks 7a, 7 shown in FIG.
b is projected so as to face upward or downward. Then, as shown in FIG. 6, when the bone wire 6 is vertically passed through the ring-shaped hook 7b and the ring-shaped hooks 4a, 4b of the bottom net 4, the concrete partition plate 7 is fixed to the bottom net 4, The bone net 6 can be fixed to the concrete partition plate 7 by vertically passing the bone wire 6 between the circular hook 7a and the ring-shaped hooks 13a and 13b of the lid net 13 described later (see FIG. 7). In addition, when the concrete partition plate 7 is fixed to the bottom net 4 and the filling stone 9 is put in as shown in FIG. 8, the weight of the concrete partition plate 7 and the weight of the filling stone 9 make the bottom net 4
Never move attached press, such as the slope 3a of the bed 2 and the embankment 3. Ring-shaped hooks 7c and 7d shown in FIG. 4 are also integrated at the left and right edges of the concrete partition plate 7. As shown in FIG. 6, if the ring-shaped hooks 7c and 7d of two adjacent concrete partition walls 7A and 7B are overlapped and the bone line 6 is inserted in the vertical direction, both concrete partition walls 7A and 7B can be connected. Therefore, the partition 10 shown in FIG. 9 can be formed. Due to the connection, the vertical positions of the ring-shaped hook 7c and the ring-shaped hook 7d are slightly displaced (see FIG. 6).
If the ring-shaped hooks 7c and 7d themselves are not large in thickness, the connection work will not be impossible due to the construction even if the deviation is not provided. In forming the partition portion 10, as shown in FIG. 10, the ground bent portion 11 that is predetermined between the riverbed 2 and the slope 3a.
When A is present, one edge portion 7m of the concrete partition plate 7C on the slope side is formed so as to be perpendicular to the river bed 2, and the two adjacent concrete partition plates 7C and 7D are The bone wire 6 can be inserted vertically also in connection. Although not shown, the concrete partition plate 7 installed on the slope 3a is arranged so that the bone line 6 is vertically inserted also in the ground break portion 11B on the slope 3a and the flat top surface 3b (see FIG. 9) of the embankment 3. It is considered that one edge is perpendicular to the top surface 3b.
By doing so, the bone line 6 can be inserted vertically even at the intersections P, Q, R, S of the respective rows of the concrete partition plate 7 shown in FIG. It is possible to install the concrete partition wall plate columns 7M and 7N arranged in a vertical posture. In addition, in the case where a concrete partition wall plate column (not shown) is provided in the middle of the slope 3 a,
If the shape of the edge shown by the two-dot chain line 7n is set in the inside,
Similar ideas can be applied.

By the way, the above-mentioned cross-shaped intersections P and Q
In FIG. 10, as shown in FIG. 10, a joint between two concrete partition boards 7A and 7B adjacent in a column indicated by a chain double-dashed line and two concrete partition boards 7 adjacent in a row indicated by a solid line.
The ring hooks 7c, 7d, 7c, 7d of C and 7D are overlapped. On the other hand, T-shaped intersections R and S (see FIG. 9)
In such a case, the ring-shaped hooks 7c, 7d, 7c are overlapped, and only one bone wire 6 is inserted therethrough to achieve mutual connection. Further, such a connection can also maintain the standing state of the concrete partition plate 7. And
After that, as shown in FIG. 8, when the filling stone 9 is thrown into each division 10 by a machine such as a backhoe or a bucket 12, the pressing force of the filling stone 9 causes a concrete partition wall that does not form an intersection. Also in the plate 7, the independence of the plate 7 is promoted by alternately charging the adjacent blocks. A lid net 13 for covering the filling stones 9 packed in the partition 10 as shown in FIG. 11 is fixed to the upper edge of the concrete partition plate 7. The lid net 13 is for preventing the filling stone 9 from being swept away by the flow in the direction of the arrow 14. Then, it has the same structure as the bottom net 4, and as shown in FIG. 1, its column line ends 13m and 13n are curled to form ring-shaped hooks 13a and 13b.
It should be noted that one lid net 13 does not have to have the same area as the bottom net 4, but concrete partition plates 7 and 7 are erected at the locations where the ring-shaped hooks 4a and 4b of the bottom net 4 are located. Since the lid net 13 is put on the ring-shaped hooks 4a and 4b and the ring-shaped hook 1
3a and 13b are preferably at the same position on the construction site. However, in both the bottom net 4 and the lid net 13 which are made of diamond-shaped wire netting, the column lines 5 cross three-dimensionally vertically and leave a space 15 as shown in FIG.
where a, 4b, 13a, 13b do not exist,
Ring-shaped hook 7 of concrete partition plate 7 shown in FIG.
The bone wire 6 may be inserted between a and the space 15 and between the ring-shaped hook 7b and the space 15, respectively. By the way, as shown in FIG. 9, the concrete partition plate rows 7K, 7 located in the riverbed 2 and extending in the lateral direction.
L is susceptible to the force applied in the flowing direction 14 of the river. Therefore, in order to make it difficult for the concrete to be swept away and to allow the flowing water between the filling stones 9 and 9 to flow smoothly, a large number of openings 16 as shown by the chain double-dashed line in FIG. Good. The opening 16 is not limited to a circular shape and may have various shapes such as a rectangular shape and a triangular shape. In short, the opening 16 may have any size and shape so that the filling stone 9 does not flow out from the partition portion 10.

The revetment structure having such a structure is constructed as follows. The running water near the riverbank 1 that is the target of the revetment work is temporarily dammed to expose the riverbed 2. A large number of bottom nets 4 and 4 are brought in and temporarily placed on the river bed 2 and the dyke 3 having a slope following it. At locations where the concrete partition plate 7 is not erected, the ring-shaped hooks 4a and 4b (see FIGS. 1 and 2) of the end portions 4m and 4n of the respective column lines are overlapped with each other, and the bone line 6 is horizontally arranged on the hooks. It is inserted and connected, and the bottom net 4 covers the entire target area of the revetment work.
To lay. Next, a large number of concrete partition plates 7, 7 are brought in and sequentially installed on the upper surface of the bottom net 4. The ring-shaped hook 7b on the lower surface is superposed on the ring-shaped hooks 4a and 4b of two adjacent bottom nets 4A and 4B which are not yet connected. Then, the ring-shaped hooks 4a, 4b, 7
When the bone wire 6 is inserted into b, the concrete partition plate 7 as a partition wall is fixed to the upper surface of the bottom net 4 (see FIG. 7). This fixing work is sequentially continued in the vertical direction along the river and in the horizontal direction toward the embankment 3. Together with the connection at the intersections P, Q, R, S (see FIG. 9), the self-supporting concrete partition plate 7 is maintained. In addition, when each concrete partition wall plate 7 is likely to fall down when connecting the concrete partition wall plate 7 to the bottom net 4, a support may be provided as needed. The concrete partition board columns 7M and 7N and the concrete partition board rows 7K and 7 installed vertically and horizontally in this manner.
Due to L, a large number of partition portions 10 for filling the filling stones 9 are formed on the upper surface of the bottom net 4 (see FIG. 9). Further, using the bucket 12, the filling stones 9 such as cobblestones carried in by a truck or the like are sequentially loaded into each partition 10 (see FIG. 8). In addition, the partition portion 10 filled with the filling stone 9
Is surrounded by concrete partition plates 7 and 7 with high rigidity,
Moreover, the concrete partition plate 7 is maintained in an upright state by the pressing force of the filling stones 9 and is in a firmly laid state with each other.
Therefore, it does not deform like the futon basket conventionally used. In addition, if it is made to throw in sequentially from the division part 10 located in the upper part of the bank 3, the bucket 12 will move on the completed division part 10 and the river bed 2
Up to this, the filling stone 9 can be sequentially introduced by mechanical work. Finally, the lid net 13 is placed on the filling stone 9 and the concrete partition plate 7, and the ring-shaped hooks 13a and 13b formed at the end portions 13m and 13n of the row lines are overlapped with each other. If the ring-shaped hook 7a is aligned at the position, and the bone wire 6 is inserted and sequentially connected, the lid net 13 can be fixed securely (see FIGS. 6 and 7). The lid net 13 prevents the filling stones 9 from being washed away by a muddy flow at the time of flood. If the concrete partition plate 7 is provided with the opening 16 shown by the chain double-dashed line in FIG. 4, running water can be smoothly circulated, and erosion due to running water or waves can be further reduced. In addition, when the bone line 6 described above is inserted into each ring-shaped hook or the like, the end of the bone line 6 may be bent if necessary so that the bone line 6 does not shift its position. It is also possible to prevent spillage due to.

FIG. 13 shows a single piece of a planar welded reinforcing bar partition plate 17 in which reinforcing bars are arranged vertically and horizontally and welded, and can be used in place of the concrete partition wall plate 7 described above. This is formed into a rectangle with a grid spacing of 0.1 m, a height of 0.5 m, and a length of 2.0 m by using, for example, a rebar having a diameter of 16 mm, and, like the case of FIG. It is fixed in an upright position. Therefore, ring-shaped hooks 17a and 17b also shown in FIG. 14 are provided on the upper and lower edge portions of the welded reinforcing bar partition plate 17 so as to face upward or downward, and the left and right edge portions also have ring-shaped hooks. Hooks 17c, 17
d is integrated. Then, in the same manner as in the case shown in FIG. 6, the ring-shaped hooks 17c and 17d of two adjacent welded reinforcing bar partition plates 17 and 17 are overlapped with each other, and the bone wire 6 can be connected by being inserted in the vertical direction. . In forming the partitioning portion 10, as shown in FIG. 15, when a predetermined ground bent portion 11A is present between the river bed 2 and the slope 3a, the welded reinforcing bar partition plate 17C on the slope side is provided. One edge portion 17m of the one is formed to be perpendicular to the river bed 2, and two adjacent welded reinforcing bar partition plates 17C,
Even in the connection of 17D, the bone line 6 can be inserted vertically. Then, also at the intersections P, Q, R, and S shown in FIG. 9, as shown in FIG.
Through 17D are connected to maintain their independence. Any connection work including such connection work is no different from the case of the concrete partition plate 7. By the way, a row of welded reinforcing bar partition plates located in the river bed 2 and extending in the lateral direction (in the case of the concrete partition plate 7 in FIG.
By changing the lattice spacing of the reinforcing bars, the columns corresponding to K and 7L are less likely to be washed away by the force applied in the flowing direction 14 of the river, and the flowing water between the filling stones 9 and 9 also flows smoothly. Can be made. Therefore, it goes without saying that the size and shape of the lattice in which the filling stone 9 does not flow out from the partition portion 10 may be set.

As can be seen from the above description, since the bottom net and the lid net of the diamond-shaped wire net are adopted on the upper and lower surfaces of the revetment structure, it is cheaper than the generally used block revetment structure. It will be The machine can be used for the construction of the seawall, and the construction period can be shortened. Since the number of bottom nets, lid nets, concrete partition plates or welded reinforcing bar partition plates may be adopted according to the scale of the revetment work, this structure can be applied regardless of the scale. Therefore, the components forming the seawall can be standardized and mass-produced. In addition, bottom nets, etc. have the flexibility required for revetment structures, and are well adapted to small ups and downs of the ground on river beds and levees, and their protective effect is further exerted. Furthermore, this revetment construction structure has an advantage that the natural landscape of the river can be maintained as compared with the case where blocks are adopted.

[Brief description of drawings]

FIG. 1 is a partial plan view of a mutual connecting portion of a bottom net or a lid net.

FIG. 2 is a view taken along the line AA of FIG.

FIG. 3 is a perspective view of a bottom net laid on a river bed and an embankment.

FIG. 4 is a front view of a concrete partition plate for defining a partition.

5 is a left side view of the concrete partition plate taken along the line BB of FIG.

FIG. 6 is an explanatory view of the connection between the bottom net and the lid net and the concrete partition plate.

7 is a cross-sectional view taken along the line CC of FIG.

FIG. 8 is an explanatory diagram of how the filling stone is put into the compartment.

FIG. 9 is a state diagram before charging the filling stones into the partition section fixed to the bottom net and defined by the concrete partition plate.

FIG. 10 is an explanatory view of a connection state at a cross-shaped crossing position of concrete partition plates in a ground break portion.

FIG. 11 is a perspective view of a seawall in which the entire upper surface of the partition is covered with a lid net.

FIG. 12 is an explanatory view when concrete partition plates are connected without using ring hooks of a bottom net and a lid net.

FIG. 13 is a front view of a welded reinforcing bar partition plate for defining a partition.

14 is a left side view of the welded reinforcing bar partition plate taken along the line DD in FIG.

FIG. 15 is an explanatory view of a connection state at a cross-shaped crossing position of the welded reinforcing bar partition plate in the ground bent portion.

[Explanation of symbols]

1 ... Riverbank, 2 ... Riverbed, 3 ... Levee, 4, 4A, 4B ... Bottom net, 4m, 4n ... Row line ends, 4a, 4b ... Ring hook, 6 ... Bone line, 7, 7A-7D ... Concrete Partition plate,
7a to 7d ... Ring-shaped hook, 9 ... Inner stone, 10 ... Partition, 13, 13A, 13B ... Lid net, 13m, 13n ...
Column line ends, 13a, 13b ... Ring hooks, 16 ... Openings, 17, 17C, 17D ... Welded reinforcing bar partition plates, 17a ...
17d ... Ring-shaped hook.

Claims (3)

[Scope of utility model registration request] 1. The riverbed, riverbank, and levees are invaded by running water.
Seawall construction constructed as a seawall protection to protect from food
In the structure, a plurality of ring-shaped curls at the end of the row line of the diamond-shaped wire mesh
Equipped with hooks and laid in the revetment installation areaIn order to do the phosphorus
Insert the bone wire into the hook and connect to each otherThe bottom net and the ring-shaped hook are formed on the edge,The ring-shaped hook
The bone wire is inserted into theThe bottom net
Standing up to define a compartment to put the filling stones on
Arranged vertically and horizontallyAlong with the ring shape formed on the lower edge
The bone wire is inserted through the hook and the bottom net and is connected to the bottom net.
RuMultiple concrete partition plates and multiple ring-shaped curls at the ends of the row lines of the diamond wire mesh
It is equipped with a hook to cover the compartment where the above filling stone is put.
MeThe bone wire is inserted into the ring-shaped hook and connected to each other.
And provided on the upper edge of the concrete partition plate.
Insert the bone wire into the ring-shaped hook to insert the concrete partition wall.
Connected to the boardWith a lid net, To A water revetment structure for hydrophilic rivers, which is characterized by being provided. 2. The hydrophilic river bank protection structure according to claim 1, wherein the concrete partition plate is provided with an opening for allowing running water to pass therethrough. 3. The water revetment structure for hydrophilic rivers according to claim 1, wherein the concrete partition plate in claim 1 is a welded reinforcing bar partition plate.