JP2849333B2 - Protective floor block with water purification function - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protective floor block having a water purification function.

[0002]

2. Description of the Related Art Conventionally, in general, a large number of protection blocks are continuously connected and laid downstream of a weir in order to protect a riverbed.

[0003] Then, a cutout portion is provided in each floor protection block to form a cavity surrounded by the floor protection block by each cutout portion, and the cavity portion is opened vertically and sideways. It reduces the resistance from running water and allows it to be used as a fish nest.

[0004]

However, the above-mentioned bed guard block has the following problems.

[0005] Simply forming a cavity in the bedguard block does not accumulate fish, and therefore does not function sufficiently as a fish nest.

In other words, unless the water quality of the river is well maintained as a living environment for aquatic animals and the algae serving as fish feed do not proliferate, fish will not accumulate. It has no function and does not function as a fish nest because algae do not thrive.

[0007] The flowing water flowing into the cavity of the bedguard block may scour the riverbed located immediately below the cavity and damage the bedguard block.

[0008] There is also a risk that children playing in the river while catching fish or the like may fall into the hollow part and drown.

[0009]

Therefore, according to the present invention, a filter material installation space penetrating in the vertical direction is formed in the flat bed protection block main body, and a filter material installation space is formed in a direction orthogonal to the filter material installation space. A bed block in which a flowing water passage that penetrates is formed, and the filter medium is accommodated in a mesh bag and arranged in the filter medium installation space, wherein the filter medium impregnates floating stone and / or pumice stone with carbon. It is an object of the present invention to provide a protective floor block having a water purification function characterized by having been performed.

[0010] Further, the filter material is characterized in that it is a lightweight concrete mass obtained by kneading a lightweight aggregate with a cement paste mixed with carbon to form a mass, and the mesh bag is formed of carbon fiber. Have.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the drawings.

A shown in FIGS. 1 to 3 is a bed guard block according to the present invention. The bed guard block A is attached to a bed guard block main body a by accommodating a filter medium b in a net c. ing.

As shown in FIGS. 1 to 3, the bed protecting block main body a has a sector 2 surrounded by arcs of equal diameter centered on four vertices of a basic square 1 indicated by a dashed line. And a circular section 3 having the same radius as the sector 2 around the center of the square and a semicircular section 4 having a small diameter centered on the midpoint of each of the four sides of the square, and
Based on this planar shape, a three-dimensional structure is formed in the height direction, and a communication portion 5 is formed on the lower surface in a radial direction of the sector portion 2 and communicates from the sector portion 2 to the circular portion 3.

In this way, as shown in FIG. 5, when the bed protection block main body a is laid out orderly in front and rear and left and right, the circular section 3 is formed by the four adjacent sectors 2, 2, 2, 2. And a small circular space 9 is formed by two adjacent semicircular portions 4 and 4. The space in the circular portion 3 and the circular space 8 are Is a filter material disposing space for disposing a filter material b described later.

The communication section 5 is provided with a bed protection block main body a.
Are stacked to form a space between the guard block main bodies a, so that flowing water flows into the circular portion 3 through the space.

In the present embodiment, the radius of the circular portion 3 is made equal to the radius of the sector portion 2. However, it is a matter of course that the two portions may have different radii without being restricted by this.

Further, a reinforcing reinforcing bar 6 is buried inside the bed protection block main body a, and the reinforcing reinforcing bar 6 is formed in an annular shape as shown in FIGS. Projections 7 projecting outward are provided at four locations in the circumferential direction, and projecting pieces 12 are provided at two locations in the circumferential direction so as to face inward.

The projection 7 is exposed to the space in the semicircular portion 4 as shown in FIGS. The exposed protrusion 7 is used for hanging a wire depending on the case and for lifting the floor protection block body a alone or the floor protection block A. Further, the bed protection block main body a can also be transported by hanging a wire on the circular portion 3 or the sector 2.

As shown in FIG. 5, the small circular space 9 is provided with a projection 7 through which the adjacent bed protection block main bodies a can be connected to each other via the connecting tool 10 shown in FIG. The connecting tool 10 is formed into a column having a diameter corresponding to the size of the small circular space 9 and the height thereof is formed to be equal to the height of the bed protection block main body a. . The recess 11 is formed to a height corresponding to the protrusion 7.

In this manner, the connection between the adjacent bed protection block main bodies a is performed as follows using the connecting member 10. That is, after arranging the bed protection block main bodies a as shown in FIG. 5, the connector 10 is inserted into the small circular space 9 formed by the semicircular portion 4. At this time, the protrusion 7 protruding into the small circular space 9 is fitted into the concave portion 11, and the protrusion 7 is arranged at the upper end of the concave portion 11 when the connecting tool 10 is completely housed in the small circular space 9. .

As a result, there is no movement between the bed protection block main bodies a. In addition, the connection of the adjacent floor protection block bodies a in this way fixes the floor protection block group G arranged as shown in FIG. 5 together with the weight of the floor protection block body a itself. .

In the protection block main body a of the present embodiment, simply by inserting the connecting tool 10 into the small circular space 9, the protection of the protection floor group G is performed.
Construction work such as sabo becomes very simple.

By placing concrete in the small circular space 9, it is also possible to fix the group G of protective floor blocks without using the connecting tool 10.

In addition, in the stable state,
Are stacked in several stages, the overall stability does not deteriorate at all, and in a state in which the bed protection block main body a is vertically stacked, the communication portion 5 becomes a passage for guiding the flowing water to the circular portion 3, Resistance can be kept small. In addition, in this stacking, the first floor protection block main body a is shown in FIG.
When the second floor protection block main body a is disposed upside down, the communication section 5 of the floor protection block main body a adjacent in the vertical direction is formed by one communication section 5. Since the space twice as large as the space formed is formed, the flowing water resistance is further reduced. Further, by forming the corners of the communication portion 5 to be round, it is possible to prevent abrasion when the human body touches the corners.

Further, since the protective floor block A of the present invention and the protective floor block main body a as a single body have a stable shape, they can be constructed into a structure such as a revetment, a sabo, or a pile. Excellent safety when stored in

The bed protection block main body a constructed as described above
As described above, the filter medium b is housed and attached in the mesh bag c, and the filter medium b and the mesh bag c will be described below.

That is, the filtering material b is used by impregnating carbon with a lightweight material that easily floats in water, for example, a floating stone or a pumice stone.

In this manner, carbon neutralizes chemical substances such as uric acid and nitric acid in the water, prevents oxidation and chemical change of organic substances in the water, and purifies the water by the filter medium b and water quality. We are trying to improve it.

Further, as the filter material b, a material obtained by kneading a lightweight aggregate mainly composed of pumice stone with a cement paste mixed with carbon and molding it into a mass can be used.

Here, the weight ratio of the lightweight aggregate to the cement may be, for example, 4: 1, and the amount of carbon mixed may be 0.5 to 5% of the weight of the cement.

Further, as the filter medium b, microorganisms can be propagated on a microorganism carrier such as barley stone and the purification of running water can be carried out using a biofilm formed by the proliferation of the microorganisms.

Instead of barley stone, Mino activated stone, Mino ceramic ball, mineral hardened with cement binder, diatomaceous earth raw material, three-dimensional network structure ceramic foam, or fibrous material May be used as a filtering material.

The mesh bag c is formed of carbon fiber and is designed to have a tension that can withstand the dynamic pressure received from flowing water of a river or sea.

The size of the mesh bag c is as shown in FIGS.
As shown in the figure, the mesh bag c is placed in the vertical direction in a state in which the filter medium b is accommodated and arranged in the circular portion 3 or the circular space 8 formed in the protective floor block main body a as the filter medium installation space. The size is such that it can float and settle.

As shown in FIGS. 5 and 8, connecting wires c1 and c1 formed of carbon fiber are connected to the net c, and the above-mentioned protective floor block is connected via the connecting wires c1 and c1. The mesh bag c can be connected to the mesh connecting projections 12, 12 provided on the main body a, and the adjacent mesh bags c, c can be interconnected.

Thus, the net bag c and the connecting wire c1 are
By forming with carbon fiber, algae can easily adhere to the net bag c and the connecting wire c1, and microorganisms can be easily propagated, so that the fish collecting function of the protection floor block A is enhanced and the function as a fishing reef is improved. Can be.

Next, with reference to FIGS. 7 to 11, the function of improving the water quality of a river by the protection floor block A according to the present invention will be described.

FIG. 7 shows the protection bed main body “a”
3 shows that a flow condition in the block when the filter material is laid, and that an upward flow and a vortex flow from below to above are generated in the circular portion 3 serving as a filter material installation space. W is running water.

In the circular portion 3, a substantially horizontal water surface w1
However, in order to intermittently change to an upwardly bulging water surface w2,
What is arranged in the circular portion 3 is levitated upward.

FIG. 8 shows a state of the bed protection block A at a normal water level, in which the filter medium b floats and the upper part protrudes from the upper surface of the floor protection block main body a.

Therefore, the gravel that has slid from the upstream to the downstream together with the running water collides with the protruding portion of the floating filter medium b and is scattered. Or in the circular space 8 can be prevented.

FIG. 9 shows a state of the protection floor block A in the flood level, in which the filter medium b floats and sinks in the vertical direction by receiving the dynamic water pressure, the lifting pressure, and the natural buoyancy of the flowing water. The water in the space where the filter material is provided is stirred, and the sliding gravel s is scattered.

As described above, when the flowing water in the filter material disposing space is agitated, DO (dissolved oxygen concentration) is increased by aeration, so that degassing can be promoted.

Therefore, BOD (Biochemical Oxygen Demand)
Microorganisms such as bacteria, and adherent algae and mosses grow, bacteria decompose dirt, and aquatic plants such as aquatic algae that absorb the decomposed soil grow, and diatom plankton that absorbs aquatic plants. By breeding and gathering fish that eat the diatom plankton etc., the circulation of the food chain ecosystem of the river can be activated, the water quality of the river can be improved, and the environment of the river can be improved.

FIG. 10 shows the state of the bed protection block A at the dry water level. In this case, the filter medium b is placed on the riverbed K to filter and purify the flowing water.

FIG. 11 shows a state in which the floor protection blocks A are stacked in a plurality of stages. By arranging a large number of filter media b in the depth direction of the water, the above-mentioned river is protected by the floor protection block group G. The effect of improving water quality can be further enhanced.

In this embodiment, the case where the protection block A is used by laying it on the riverbed K of a river has been described. However, the present invention is not limited to this case. Can also.

At the time of a large flow at the time of flood, the filter medium b
Deposits such as suspended matter adhering to the filter are washed away and wiped off, but there is a possibility that the deposited matter such as suspended matter may cause clogging of the filter medium b at a dry water level. In this case, the net bag c
The filter material b can be replaced every time.

The filter material b to which the adhering matter such as suspended matter adheres is buried together with the net bag c in soft ground such as mud, and can be used as waste as a ground improvement material.

In this case, since suspended matter and the like are attached to the filter medium c, the adherent bacteria are liable to grow in the soil and become fertilizer. Suitable for survival.

[0051]

According to the present invention, the following effects can be obtained.

[0052] Since the filter medium is accommodated and arranged in the net bag in the filter medium installation space formed by vertically penetrating the bed guard block main body, the flow of the river is controlled by the filter medium. Filtration can reduce SS (water suspended solids).

At this time, since a floating stone, a pumice stone, or a lightweight concrete block is used as a filtering material, the filtering material in the net bag is subjected to the dynamic pressure of flowing water and the lifting pressure at a normal water level or a flood level. Floating upward in the filter material installation space,
The upper side of the mesh bag protrudes upward from the filter media installation space, and the gravel that has slid from upstream to downstream along with the running water collides with the protrusion and is dispersed. Accumulation can be prevented.

Then, by the dynamic pressure and the lifting pressure of the running water,
Since the filter medium in the net bag repeatedly floats and settles and stirs the flowing water in the filter medium installation space, it is possible to increase DO (dissolved oxygen concentration) by aeration and promote degassing.

Therefore, BOD (Biochemical Oxygen Demand)
Microorganisms such as bacteria, and adherent algae and mosses grow, bacteria decompose dirt, and aquatic plants such as aquatic algae that absorb the decomposed soil grow, and diatom plankton that absorbs aquatic plants. The food chain ecosystem of the river changes, for example, the fish that breed and eat the diatom plankton gather, so that the water quality of the river can be improved and the environment of the river can be improved.

Here, the filter medium has an adsorbing power, and the carbon (carbon) neutralizes chemical substances such as uric acid and nitric acid in water and prevents oxidation and chemical change of organic substances in water. Therefore, water quality can be improved from this point.

When the net is made of carbon fibers, algae are easily attached to the net and microorganisms are easily propagated, so that the function as a fish reef is improved.

Since the filter medium is provided in the filter medium installation space formed by vertically penetrating the bed protection block main body, a portion of the riverbed located immediately below the filter medium installation space by running water. Can be prevented from being scoured, and breakage of the bed guard block can be prevented.

Since the filter medium is provided in the space where the filter material is provided, it is possible to prevent children who fish in the river from falling into the space where the filter material is provided and drowning. it can.

During a dry season or a drought season, the atmosphere of the river becomes high in temperature, but the net bag containing the filtering material performs the heat-insulating function of the protective floor block, thereby making it possible to completely protect the ecosystem.

[Brief description of the drawings]

FIG. 1 is a perspective view of a bed guard block according to the present invention.

FIG. 2 is a front view of the guard block.

FIG. 3 is a plan view of the guard block.

FIG. 4 is a perspective view of a reinforcing reinforcing bar incorporated into the main body of the guard floor block.

FIG. 5 is a plan view showing a state in which the guard block is laid.

FIG. 6 is a perspective view of a connector inserted into a connection portion.

FIG. 7 is an explanatory cross-sectional view showing a flow state in the guard floor block.

FIG. 8 is an explanatory diagram showing a floating state of a filter medium.

FIG. 9 is an explanatory view showing a floating / sedimentation operation state of the filter medium.

FIG. 10 is an explanatory diagram of a state of a filter medium at a dry water level.

FIG. 11 is an explanatory view of a state where the floor protection blocks are stacked.

[Explanation of symbols]

 2 Fan-shaped part 3 Circular part 4 Semicircle part 5 Communication part 6 Reinforcing reinforcing bar 7 Projection 8 Circular space 9 Small circular space 10 Connector 11 Concave part

Claims (3)

(57) [Claims] 1. A flat bed protection block main body, wherein a filtering material disposing space penetrating vertically is formed, and a flowing water passage penetrating in a direction orthogonal to the filtering material disposing space is formed. A protective floor block in which a filtering material is accommodated in a net bag in a material disposing space, wherein the filtering material is obtained by impregnating a floating stone and / or a pumice stone with carbon. Protective floor block with water purification function. 2. The protective floor block having a water purification function according to claim 1, wherein the filter material is a lightweight concrete block formed by kneading a lightweight aggregate with a cement paste mixed with carbon to form a block. . 3. The protective floor block having a water purification function according to claim 1, wherein the mesh bag is formed of carbon fiber.