JP2003041552A - Water purifying construction method based on l-shaped block with pot for conservation of ecosystem and landscape in natural environment and for combinational use as revetment of lake or river and fishing bank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing method for an L-shaped block with a pot and a construction method for it capable of conserving an ecosystem and a landscape in a natural environment, purifying water, restoring a lake and a river for cultivation of a large-size carp or crucian. SOLUTION: Willows naturally growing along a natural riverbank spread their roots deep in the ground and extend the roots in the water for forming a shelf, and fish lives in an excavated hole for breeding. In an ordinary L-shaped block, a pot 15 having a plurality of horizontally long through holes 13 formed for planting the willows is installed in imitation of a ledge according to a water depth, a water quantity and a mean water level, and though the through holes, the roots spread in the water. In the back face part of the L-shaped block, the roots spread in the river ground through a cutout formed according to the dimension of the pot. In preparation for a just planted condition or a dry season, a duct 18 with a proper thickness is installed in a proper position in the ground inside the pot in parallel to the L-shaped block with the pot, and underground water is introduced from the upstream side by means of a pump. Consequently, the willows are rooted to grow for forming the fishing bank, and protection of the ecosystem, purification of water, and conservation of the landscape can be accomplished.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The L-shaped block with a pot having a simple structure is used for river switching / widening / renovation for the protection of the natural environment ecosystem and landscape, construction of irrigation canals, revetment of ceiling rivers, and aquaculture and agriculture of seafood. It is a water purification method applicable to and belongs to the field of civil engineering and construction.

[0002]

2. Description of the Related Art A conventional revetment with concrete blocks is a method of solidifying concrete from the riverbed to the slope with concrete and blocks because it is severely cut off from natural riverbanks. There was a drawback that alienation occurred. Recently, various construction methods and revetment blocks have been devised from the perspective of nature conservation, with emphasis on the connection of ecosystems. (For example, JP-A 06-257121, JP-A 07-024442, JP-A 07-34429,
JP-A-09-302642, JP-A-10-10251
No. 6, Special Publication 2001-90045, Special Publication 2001-
73341, JP 2000-328541, JP 2
000-129703, Japanese Patent Publication 11-217816, Japanese Patent Publication 11-131448, Japanese Patent Publication 10-195842
Japanese Patent Publication 10-183571, Japanese Patent Publication 10-11041
9, Special Fair 10-4819, Special Fair 8-81938, Special Fair 7-233515, Special Fair 6-41932, Actual Fair 5-94326, Actual Fair 5-81313, Design Registration 09
74493, Design Registration 0992987, Design Registration 1
See 016260, Design Registration 1035805, Design Registration 1072285. )

[0003]

[Problems to be Solved by the Invention] In order to protect the ecosystem and landscape of the natural environment, it is very important to maintain the connection between the riverbed and the ecosystem between water and animals and plants in the water, and breed and purify the water quality. However, conventional revetment made of concrete and blocks, from the viewpoint of ecosystem connection,
It is not preferable because there is a disconnection with the natural riverbank. Therefore, it is desirable that the present invention is one that can be easily constructed, has excellent strength and durability, is easy to maintain and manage, and can be mass-produced, which is not available in the prior art.

It is an object of the present invention to provide a method for attaching a pot and an underdrain to a general L-shaped block, a method for planting willow trees, and a method for constructing the same.

[0005]

[Means for solving the problem] Willows that grow naturally on the waterfront of natural riverbanks have deep roots in the soil and also roots in the water to form shelves, and fish live in the dug holes and breed. is doing.
In order to create the environment and eliminate the disconnection with the natural riverbank, the present invention imitates a general L-shaped block according to the water depth, the water amount, and the average water level, and imitates a rock shelf, like a pot (15). To
(19) Horizontal through hole for planting willow trees (13)
A bowl (15) having a plurality of holes is attached to the through hole (13) so that the root protrudes into the water like (21), and the size of the bowl (15) is set on the back of the L-shaped block. The cutouts (14) formed together are constructed so that roots overhang in the riverbed as shown in (20). This is a construction method that pays attention to the strong vitality of willows, and in preparation for the condition of freshly planted trees and the dry season, at the appropriate depth position in the soil of the pot (15), the underdrain of the appropriate thickness ( 18) is attached in parallel to the L-shaped block with a pot, and groundwater is pumped from upstream to grow rooted to form a fish nest and protect the ecosystem, purify the water quality, and protect the landscape. L-shaped block with attachment 1, 2, 3,
4 type, L type with bowl, concave block 5, 6, 7, 8 type and L with bowl
The mold block convex 9/10/11/12 type block and its construction method are shown.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described based on examples with reference to FIGS. The conventional construction method that stacks a large number of revetment blocks that form slopes and doubles as fish nests is difficult to construct at the curving section of the revetment, and it is possible to eliminate the disconnection with the natural river bank, but It is vulnerable to erosion due to meandering, has poor strength and durability, and has difficulty in forming fish nests. Therefore, considering the connection of the ecosystem, L-type block with pots, 1, 2, 3, 4 type, L-type with pots, which imitates a rock shelf like a willow that grows naturally on the waterfront of a natural riverbank Block concave 5
・ 6,7,8 type and L type block convex with bowl 9 ・ 10 ・ 11
・ Using the 12 type, plant willows (19) in pots and overhang the roots widely in the water like through holes (13) (21).
In order to deepen the roots in the riverbed soil from the notch (14) to (20), groundwater is pumped from upstream (immediately after the planting of willow trees in (19) and during the dry season when the water level drops ( 1
8) Send to the underdrain, help the growth of willows in (19), form fish nests, and eliminate the disconnection with the natural riverbank, protect the ecosystem.
It can be maintained and has a great effect on water purification, and can breed fish and insects. Further, the present invention is easier to construct than the conventional revetment block, the connection by the handle of (16) covers the riverbed without gaps, prevents the erosion due to the meandering of the river, and allows the riverbed to be used more effectively than the conventional construction method. It is easy and can be applied to revetment and renovation of the ceiling river.

[0007]

[Effects of the Invention] Due to the excellent structure and construction method of the L-shaped block with bowl, it is possible to easily revet and repair the ceiling river.
The willows planted in (19) grow and form fish nests, breeding riverbeds and water and underwater flora and fauna, purifying water quality, leading to the cultivation of large trout, carp and salmon, and resuscitation of lakes and rivers. Leads to. Effective use of riverbed leads to landscape protection and agriculture, protects and maintains the ecosystem, and is easy to construct.

[0008]

[Brief description of drawings]

FIG. 1 is a perspective view of an L-shaped block 1 type with a bowl.

FIG. 2 is a perspective view of an L-shaped block 2 type with a bowl.

FIG. 3 is a perspective view of an L-shaped block 3 type with a bowl.

FIG. 4 is a perspective view of an L-shaped block 4 type with a bowl.

FIG. 5 is a perspective view of an L-shaped block concave type 5 with a bowl.

FIG. 6 is a perspective view of an L-shaped block concave 6 type with a bowl.

FIG. 7 is a perspective view of an L-shaped block concave 7 type with a bowl.

FIG. 8 is a perspective view of an L-shaped block concave 8 type with a bowl.

FIG. 9 is a perspective view of a convex L-shaped block 9 with a bowl.

FIG. 10 is a perspective view of an L-shaped block convex 10 type with a bowl.

FIG. 11 is a perspective view of an L-shaped block convex 11 type with a bowl.

FIG. 12 is a perspective view of an L-shaped block convex 12 type with a bowl.

FIG. 13 is a sectional view of an L-shaped block 1 type with a bowl.

FIG. 14 is a sectional view of an L-shaped block 2 type with a bowl.

FIG. 15 is a sectional view of an L-shaped block 3 type with a bowl.

FIG. 16 is a sectional view of an L-shaped block 4 type with a bowl.

FIG. 17 is a sectional view of an L-shaped block with a bowl and a concave 5 type.

FIG. 18 is a sectional view of an L-shaped block with a bowl and a concave 6-type.

FIG. 19 is a cross-sectional view of a concave L-shaped block 7 type with a bowl.

FIG. 20 is a cross-sectional view of a concave L-shaped block 8 type with a bowl.

FIG. 21 is a cross-sectional view of a convex L-shaped block 9 with a bowl.

FIG. 22 is a sectional view of an L-shaped block convex 10 type with a bowl.

FIG. 23 is a cross-sectional view of an L-shaped block convex 11 type with a bowl.

FIG. 24 is a sectional view of an L-shaped block convex 12-type with a bowl.

FIG. 25 is a construction drawing showing a state in which willows planted through an underdrain in L-shaped block type 3 and 4 type with pots have rooted and grown.

FIG. 26 is a construction drawing showing a state in which willows planted through an underdrain in an L-shaped block type 4 with a pot have grown rooted.

[Fig. 27] L-shaped block 2/4 type with bowl and concave 7
・ Construction drawing showing the state where the willows planted through the underdrain in type 8 have grown rooted

FIG. 28: L-shaped block convex 10/12 with bowl
Construction drawing showing the state in which the willows planted through the underdrain have rooted and grown in the mold type 4, type 4 and concave type 7 and 8 type

[Explanation of symbols]

1 L-shaped block with bowl 1 2 L-shaped block with bowl type 2 3 L-shaped block with bowl 3 4 L-shaped block with bowl 4 type 5 L-shaped block with bowl, concave type 5 6 L-shaped block with bowl, concave 6 7 L-shaped block with bowl, concave type 7 8 L-shaped block with bowl, concave 8 type 9 L-shaped block with bowl, convex type 9 10 L-shaped block with bowl, convex type 10 11 L-shaped block with bowl, convex type 11 12 L-shaped block with bowl, convex type 12 13 through holes 14 notches 15 bowls 16 patterns 17 Foundation bottom 18 Underdrain 19 Willows planted 20 Roots overhanging in riverbed soil 21 Roots overhanging in water

Claims (5)

[Claims] 1. A bowl (15) having a free shape suitable for a construction purpose is manufactured on a general L-shaped block having a size that matches a water depth, a water amount, and an average water level of a target river or lake.
The plurality of horizontally elongated through holes (13) having a necessary size suitable for the pot (15) are formed at predetermined positions, and the pot (1
5) L-shaped block with pot 1, 2, 3 and 4 type, L-type block with pot concave type 5, 6, 7 and 8 type, in which a notch (14) suitable for the purpose of construction is freely formed on the back surface of 5) And a method for manufacturing an L-shaped block convex 9/10/11 / 12-type block with a bowl. 2. A hole (13) is carefully transplanted into a pot (15) as shown in (19) without cutting the roots of willows of an appropriate thickness and length that grow naturally on the riverbed, and the through hole (13) is formed. From (21)
The L-shaped block with pots 1, 2, 3 according to claim 1, wherein roots are deeply laid in the riverbed soil as in the cutouts (14) to (20) so that the roots can be widely spread in the water.・ Type 4 with bowl L
Construction method for concave block 5,6,7,8 type and convex L-shaped block with bowl 9/10/11/12 block. 3. An underdrain (18) having an appropriate thickness is installed at a position of an appropriate depth in the soil of the pot (15) in parallel with the L-shaped blocks 1 to 12 with a pot, and is pumped from underground upstream. The L-shaped block with bowl 1, 2, 3, 4 type and the L-shaped block with bowl 5, 6.
Construction method of 8 type and L type block convex 9/10/11/12 type block with bowl. 4. The L-shaped block with pot 1, 2, 3, 4 type and L-shaped block with pot recess according to claim 1, 2 or 3, wherein a handle (16) is provided on a side surface and is laterally connected to each other. 5, 6, 7
・ Construction method of 8 type and L type block convex 9/10/11/12 type block with bowl. 5. A curved L-type block concave 5, 6, 7, 8 type with a bowl and an L-shaped block convex 9/10, 11/12 type block with a bowl according to claim 1, 2, 3 and 4 are curved. How to construct.