JP3566850B2 - Floor stop method using pile - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is to prevent scouring of rivers and coastal shallows, about the floor stop construction method and river water system construction method that can preserve the habitat of animals, plants.
[0002]
[Prior art]
Conventionally, concrete blocks have been used to construct embankments, and concrete blocks have been laid on riverbeds and sea surfaces to prevent rivers and coasts from being washed and to protect seawalls. In addition, weirs of the river were also constructed by using cast-in-place concrete with a large head.
In this conventional floor-stopping method / consolidation structure, the height of the embankment and the riverbed surface were not continuous, and the lower end of the embankment was a somewhat deep riverbed / seabed.
For this reason, a shore with continuous beaches, sandy beaches, and wands is not formed from the embankment body, and the habitat of plants vegetating on these shores and living creatures on the shore has been lost. In addition, the embankment block and the embankment block are constructed by arranging concrete blocks with small gaps to form riverbeds, seabeds, and embankments, where there are few voids and spaces suitable for small animals to live, and water flows. There was no stagnation or change, and there was little natural growth of plants.
In addition, a concrete weir cast in place in a river has a large head and it is difficult to move the fish upstream, and when the fish falls, the head is large and the fish is easily damaged. Especially for fry, the conventional concrete weir was a major obstacle to movement.
[0003]
[Problems to be solved by the invention]
The problem to be solved by the present invention is to solve these conventional problems and to protect the natural environment while allowing the survival of various animal and plant organisms, while preserving the rivers, riverbeds, rivers, and pools. An object of the present invention is to provide a method of consolidation using piles and a method of river flood control .
[0004]
[Means for Solving the Problems]
The configuration of the present invention that has solved such a problem includes:
1) Laying a plurality of plate-shaped consolidation blocks with multiple piling holes in shallow waters of rivers or coasts, loosely connecting adjacent consolidation blocks so that tilt and small movement are allowed, and placing stones on the same consolidation blocks Many piles are loaded so that there is a gap, and the pile is driven into the pile hole of the consolidation block at a position that prevents the stone from moving and collapsing and that prevents the rock from moving from the riverbed or sea floor. The floor-stopping method using piles, which prevents the scouring of the riverbed and the seabed and enhances the fish nest effect. Multiple piles are laid and loosely connected to each other to allow for inclination and small movement between the adjacent consolidation blocks.Piles are driven into the pile holes at a height such that the pile head is below the surface of the water, and the consolidation blocks are installed in rivers or seas. Fix to the bottom and scour the bottom The floor stop method 3) river or coastal tabular roots compaction block in which a plurality opened Kuiana in shallow water with a pile, characterized in that to rise to Todokomi water flow Gutotomo plurality laid, adjacent Loosely connect the shoring blocks to allow for tilting and small movement, and drive a long stake into the pile hole at a height where the pile head protrudes slightly above the water surface to fix the shoring blocks to the bottom of the river or sea. prevents the scouring of the bottom surface and the floor sealing method 4 using the pile, characterized in that the stop wood bird with to rise to Todokomi water flow) from the upstream side toward the downstream side of the river, A plurality of plate-shaped consolidation blocks with multiple pile holes are laid out stepwise on a plurality of small steps, and adjacent consolidation blocks are loosely connected to each other so that tilt and small movement are allowed, and stones are placed on the same consolidation blocks. Load many so that there is a gap, Arrange the stones so that weirs are formed at the level of the step of the consolidation block, and place the pile in the pile hole of the consolidation block at a position to prevent the movement and collapse of the stone and to prevent the movement of the consolidation block itself. Driving to form a natural breeze into the flow of water in the river by using piles. 5) Floor-fixing method using piles. 1) or 2) floor-stopping method using a pile according to any one of the above-mentioned 6) Construction of a plurality of the consolidation blocks of the floor-stopping method according to the above 2) or 3) at a predetermined distance in a shallow water near a river, river sediment on the root compaction block and naturally deposited to form a natural Zhou continuous with shore, in river water system construction method <br/> capable as border rivers causes tortured in a serpentine shape.
[0005]
[Action]
In the present invention, a plurality of plate-shaped consolidation blocks are laid on shallow riverbed surfaces of rivers and coasts, and piles are driven into the pile holes to fix the consolidation blocks so that they do not move by water flow. To prevent scouring of riverbeds and seabeds.
Adjacent consolidation blocks are gently connected with a shackle or the like in the concavity provided in the center of the opposing side surface, allowing tilt and small movement, so that the consolidation block is not an accurate flat surface and has irregularities. Or it can be connected even if it is laid on a curved or inclined riverbed or seabed. By being connected, the arrangement of the stiffening blocks does not collapse and the movement can be reduced. In addition, a slight inclination and movement of the stiffening block after laying can be tolerated, thereby preventing major damage and collapse of the stiffening block.
Next, large and small stones are loaded on this consolidation block, creating gaps between the stones that allow small flow of water, stagnation of water, passage of small animals, dwellings, etc., and prepare habitat for various small animals, The fish nest effect increases. On land, the effect of vegetation return is brought about.
The stones on the consolidation block are held by the piles driven into the pile holes of the consolidation block so as not to move or collapse. The piles of the stiffening blocks can also slow down the flow of water, improve the habitat of fish and aquatic organisms, and become a perch for birds and the like if the pile heads protrude above the water surface.
In the river, laying a stiffening block with small steps in a step-like manner, and loading stones on the stiffening block to create small currents, weirs and pools, making it easier for small animals to inhabit, and from downstream to upstream The movement of the fish and the movement from the upstream to the downstream also reduce the damage to the fish due to the fall and facilitate the movement of the fry. In addition, the natural purification action by the contact oxidation between the waterfall and the gravel due to the head is promoted.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
In the present invention, a concrete block having a size of about 1.5 mx 1.5 mx 0.25 m is practically used as the plate-like compacting block. It is point symmetrical to form a hole at the position, provide a recess with a semicircular cross section on the outer peripheral side face at the center of the side face, and provide a concave section with a 1/4 circle cross section at the corner. Even if they are arranged on the left and right sides, a semicircular concave portion and a quarter circular concave portion can be combined to form a circular pile hole, which is desirable.
It is practical to attach a U-shaped connecting fitting as a loose connecting means to the recess at the center of the side face of the shoring block, and to shackle the pair of connecting fittings in the opposing recess of the adjacent shoring block. It is.
As the pile, a pine pile or a concrete pile having a length of about 1 to 4 m that does not corrode in water can be used.
[0007]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of a stiffening block used in the embodiment.
FIG. 2 is a side view of the stiffening block used in the embodiment.
FIG. 3 is a front view of a stiffening block used in the embodiment.
FIG. 4 is a plan view illustrating an example of an arrangement state of the rooting blocks according to the embodiment.
FIG. 5 is an explanatory view showing an embodiment of the method of consolidation of the maintenance of the edge.
FIG. 6 is an explanatory view showing an example of a method for embedding the piles.
FIG. 7 is an explanatory diagram showing the arrangement of the rivers at the water contact portion in the embodiment of FIG.
FIG. 8 is an explanatory diagram showing a transition at the edge of the embodiment of the construction in FIG. 7.
FIG. 9 is an explanatory diagram showing an embodiment in which weirs are formed by laying step-by-step blocks of a consolidation block.
FIG. 10 is a perspective view of the embodiment of FIG.
FIG. 11 is an explanatory view showing a construction method according to an embodiment of a flood control in which stones are stacked above the water surface.
FIG. 12 is a plan view illustrating an example of the floor stopping method using the pile according to the embodiment.
FIG. 13 is a sectional view taken along line XX of FIG.
FIG. 14 is a plan view showing the laid state of the stiffening block of the embodiment in FIG.
FIG. 15 is a sectional view taken along line YY of FIG.
In the drawing, reference numeral 1 denotes a concrete stiffening block containing a reinforcing bar according to the embodiment of the present invention. Reference numeral 1a denotes a 250 mm diameter pile hole of the block 1; 1b, a semicircular recess in the center of the side face of the block 1; 1c, a U-shaped connection fitting mounted in the recess 1b; The length is slightly different from side to side and back and forth, and it projects slightly from the side. 1d is a 1/4 circular recess formed in the corner of the stiffening block 1, 1e is a shackle, 2 is a pine stake, 3 is a stone, 4 is a riverbed, 5 is a river rivet, 6 is Designed riverbed height, 7 is a river, 8 is a stepped portion, 9 is a weir, 10 is an abyss, 11 is an embankment, 12 is sedimentary sand, and 13 is a plant. The embodiment shown in FIGS. 5 and 6 is an example in which two rows of the stiffening blocks 1 shown in FIGS. 1 to 3 are laid at three locations of the water contacting section 5 of the river 7 and a plurality of stones 3 are stacked thereon. . In this embodiment, the group of the consolidation blocks 1 and the stones 3 thereon prevent the riverbed 4 from being scoured by the water flow. In addition, there is a gap between the stones 3 and the stones 3 and the pine stakes 2 form a current and a deep pool, so that a fish run-up and a fish nest effect can be obtained.
Also in this embodiment and other embodiments, the recesses 1b on the side surfaces of the adjacent consolidation blocks 1 face each other to form a space of a substantially circular hole, and the connection of each block is formed in the space. The brackets 1c are vertically overlapped so as not to come into contact with each other and are connected to each other by a shackle 1e. ing.
As a result, the riverbed, the seabed, and the consolidation block are changed and displaced by the water current, the ground deformation, the force of the wave, and the like. While maintaining the connection state of the consolidation block 1. In addition, the loose connection prevents a large movement and inclination of the stiffening block 1, prevents a large collapse of the arrangement state of the blocks, and maintains the function of the floor stopper for many years. Next, the pine pile 2 is screwed into the female screw hole through a bolt (not shown), and is fixed to the block 1. The pine pile 2 fixes the block 1 to the riverbed 4 so as not to move. In addition, the upper stone 3 is kept from moving.
The stone 3 also resists the flow velocity of water due to its own weight. Correspondence to the flow velocity of water is made by the self-weight of the consolidation block 1, the self-weight of the stone 3, the resistance of the pine pile 2, and their connection. It is not possible to cope with the weight of the stiffening block 1 alone. In addition, the self-weight of the stone 3 and the resistance of the pine stake 2 can reduce the self-weight of the stiffening block 1 and facilitate the installation work of the stiffening block 1. The features of this block are that the weight is reduced to improve the workability and that the weight of the pile and the packing stone correspond to the flow velocity. This can be dealt with by installing a large-grained stone or increasing the weight of the block itself.
Also, if the pile head of the pine pile 2 is set on the water surface as shown in FIG. 6, it becomes a perch for birds and insects.
In the embodiment shown in FIG. 7, which is installed in a shallow water near the shore of the river 7, a number of stiffening blocks 1 are laid, and a pine pile 2 is driven into the pile hole 1 a and fixed to the riverbed 4, and the pine pile 2 is fixed. This is an example of projecting above the water surface higher than the planned riverbed height of 6.
In the example of FIG. 7, the pine pile 2 generates a vortex in the water flow to weaken the flow of the water, facilitates sediment deposition thereon, forms a bank connected to the embankment, and forms a natural shore with meandering irregularities. Nature can be restored. FIG. 8 (a) shows a state immediately after the construction of the embodiment of FIG. 7, and after several years, as shown in FIG. 8 (b), a large amount of sediment is deposited on the consolidation block 1 of the embodiment, and sandbanks enter and exit. Comes up. In addition, vegetation grows on this, and some sandbars become Nakasu, and the terrain becomes complicated, and the variety of plants and animals also becomes diverse, and diverse natural waterfronts and biotopes appear. The pine pile 4 serves as a perch for birds such as ducks, herons, and shorebirds. As fish, Ayu, Koi, Funa and Medaka are easy to inhabit.
In the embodiment shown in FIGS. 9 and 10, the consolidation blocks 1 are laid out stepwise with small steps in the river, and a large number of stones 3 are loaded on the consolidation blocks 1. Many have formed. The pine pile 4 is driven into the pile hole 1 a of the stiffening block 1 to stop the movement of the stiffening block 1 and prevent the movement of the stone 3. In the embodiment shown in FIGS. 9 and 10, since the head of the water flow is small, it is easy to move the fish or the larvae having no swimming ability to the upstream, and to reduce the damage to the fish by falling when descending. In addition, create an environment in which small fish can live in small pools and weirs and pools. Also, the voids in the stone 3 can provide a safe place for small fry.
The embodiment shown in FIG. 11 is an example of a water control in which stones 3 are stacked above the group of the consolidation blocks above the water surface, and the stones 3 are small below and large above. This example creates voids of various sizes between the stones 3 to provide habitat for small fish, fry and insects. The upper large stone 3 reduces the movement of the lower small stone 3.
The embodiment shown in FIGS. 12, 13, 14, and 15 is an example of a method of retaining a river bed, in which the shoring blocks 1 are arranged in an H shape on an inclined riverbed, and the stones 3 of the shoring blocks 1 in the center of the river. When the river 3 is piled low and piled up with the stone 3 of the embankment block 1 on the levee side, water is collected in the center of the river to secure a predetermined water depth even if the amount of water in the river is small, so that a fish movement channel is secured. In addition, the water flow on the consolidation block 1 on the levee side is slow, and the water flow is fast in the river center to create a stream S, thereby enabling segregation of fry / small animals / insects from adult / large fish. In the middle of the river, a scouring pit is formed downstream of the consolidation block 1, which increases the penetration of oxygen due to the fall of the water flow and creates a deep water region.
[0008]
【The invention's effect】
As described above, according to the present invention, the stiffening blocks are laid out on the riverbed / seabed and loosely connected to each other, and the piles are driven into the pit holes and fixed, thereby allowing a slight inclination of the blocks to move. Prevents movement / tilt and keeps the block arrangement for a long time, prevents scouring of the riverbed / sea bottom, and changes the flow of water by stacking stones on it, improving the habitat of fish by the gap between the stones, In addition, the pile can prevent the stone from moving and falling. In addition, the stones and piles make it possible to keep the weight of the stiffening block low, facilitating installation and transportation.
The use of pile-based consolidation blocks creates a favorable environment for fish habitation while preventing scouring of the pools and ponds, and also forms a river that extends continuously from the embankment to the river that is continuously connected. A lot of waterside conditions can be created. In addition, the pile head projecting from the water surface can provide a place for birds to stop.
Furthermore, by laying the consolidation blocks step by step with small steps, a large number of small pools and small weirs and deep pools can be created to facilitate the movement of fry and benthic organisms to the upstream and to prepare their habitat. It will be.
[Brief description of the drawings]
FIG. 1 is a plan view of a stiffening block used in an embodiment.
FIG. 2 is a side view of a shoring block used in the embodiment.
FIG. 3 is a front view of a stiffening block used in the embodiment.
FIG. 4 is a plan view showing an example of an arrangement state of the rooting blocks according to the embodiment.
FIG. 5 is an explanatory view showing an embodiment of a method for consolidating the depth of a pool.
FIG. 6 is an explanatory view showing an example of a method for embedding a pile for pile mounting.
FIG. 7 is an explanatory diagram showing an arrangement of rivers at a water colliding section in the embodiment of FIG . 6;
FIG. 8 is an explanatory view showing a transition at the edge of the embodiment of the construction in FIG. 7;
FIG. 9 is an explanatory diagram showing an embodiment in which a weir is formed by laying a stiffening block stepwise with a step.
FIG. 10 is a perspective view of the embodiment of FIG. 9;
FIG. 11 is an explanatory view showing a construction method according to an embodiment of a flood control in which stones are stacked above the water surface.
FIG. 12 is a plan view showing an example of a floor stopping method using a pile according to the embodiment.
FIG. 13 is a sectional view taken along line XX of FIG. 12;
FIG. 14 is a plan view showing a laid state of the stiffening block of the embodiment in FIG. 12;
FIG. 15 is a sectional view taken along line YY of FIG. 12;
FIG. 16 is an explanatory view showing an embodiment of the method of the present invention for consolidating a rock near a shore.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rooting block 1a Pile hole 1b Depression 1c Connection fitting 1d Depression 1e Shackle 2 Pine pile 3 Stone 4 Riverbed 5 Flood contact part 6 Planned riverbed height 7 River 8 Stepped part 9 Weir 10 Depth 11 Embankment body 12 Sediment sand 13 plant

Claims (6)

Plural flat-type reinforced blocks with multiple pile holes are laid in shallow waters of rivers or coasts, and adjacent reinforced blocks are loosely connected to each other so that tilt and small movement can be allowed. A large number of piles are loaded, and piles are driven into the pile holes of the block to prevent movement and collapse of the stone and the position of the block to prevent movement of the block from the riverbed / sea floor. A floor-stopping method using piles, characterized by preventing scouring of the riverbed and seabed and enhancing the fish nest effect. A plurality of flat slabs with multiple pile holes are laid in the riverbed or shallows of the coast, and the adjacent stake blocks are loosely connected to each other so that tilt and small movement are allowed. bed with piles, characterized in that to rise to Todokomi water flow together when preventing scour the bottom to fix the roots compaction block on the bottom of the river or sea by implanting pile height to be lower Stopping method. A plurality of plate-shaped consolidation blocks with multiple pile holes opened in shallow waters of rivers or coasts, and adjacent consolidation blocks are gently connected to each other so that tilt and small movement are allowed. root compaction block prevents the scouring of the bottom surface is fixed to the bottom of the river or sea slightly by implanting long pile height projecting from above, be a stop wood bird with to rise to Todokomi water flow Floor stopping method using piles characterized by the following. From the upstream side to the downstream side of the river, flat slabs with multiple piled holes are laid out stepwise with multiple small steps so that adjacent stakes can be allowed to tilt and move slightly. Loosely connected, pile a large number of stones on the solidification block so that there is a gap, and arrange stones so that weirs are formed at the position of the step of the solidification block, and position to prevent movement and collapse of the stone The pile is used to drive the pile into the pile hole in the pile to prevent movement of the pile itself, so that the water and the river flow form a stream and a ridge in a natural style. Floor stop method. The floor-stopping method using a pile according to any one of claims 1 and 2, wherein a consolidation block is laid at a position of a water collision part of a river. The floor consolidation block of the floor stopping method according to claim 2 or 3 is constructed at a plurality of locations at a predetermined distance in a shallow water near the edge of a river, and natural sediment of the river is naturally deposited on the consolidation block to form a natural continuity with the shore. A river flood control method that forms a river and makes the water's edge bend in a meandering manner .

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