JPH10266162A - Vegetation structure for revetment and execution method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stably set a preventive mat against suction to prevent scouring of a slope by the mat, by arranging a bottomless concrete frame on a preventive mat against suction laid on the slope at the water's edge to press down the mat. SOLUTION: A preventive mat 2 against suction is made of a water resistant fiber material or the like. A concrete frame body 3 put on the mat 2 is provided with two square containing portions with a partition wall 31 at the center. And adjacent concrete frame bodies 3,... are mutually fixed by bolts and nuts provided on respective side walls 32, 33. A soil conditioner, a water-retaining material, and fertilizer necessary for growing plants are contained in the vegetation mat 4 put in the concrete frame body 3. And a base board for growing plants is put thereon. In this way, the mat 2 can be stably anchored even on an inclined slope face 1 at the water's edge by arranging these concrete frame bodies 3,... on the mat 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a revetment vegetation structure for protecting and greening a waterside, and a method for constructing the structure.

[0002]

Conventionally, in order to protect the waterside of rivers and the like and to make it green, seeds have been conventionally filled together with a growth base material into a special bag-like mat made of a highly durable fiber material. The construction method of fixing the vegetation block on the slope of the waterside is adopted.

[0003] Such vegetation blocks are often
In addition to fixing with anchors and pegs, the ground is fixed to the slope using holding steel bars or concrete blocks, but the growth base material and seeds are sucked out by water currents and waves, and the slope itself is scoured ( Erosion)
The measures were required.

On the other hand, a method of laying a concrete structure on a slope of a riverbank has been popular in order to secure a river channel and protect the riverbank, but the construction is troublesome and a simpler construction method is required. It is required, and from the viewpoint of emphasizing the scenery, it is said that it is desirable to also perform greening work so that the ground of concrete is not visible.

The present invention has been made in view of such circumstances,
It is an object of the present invention to provide a seawall vegetation structure that can stably grow plants even in a place where there is a water flow and that can prevent scouring of a slope, and that is easy to construct and a construction method thereof.

[0006]

According to the present invention, means for solving the above-mentioned problems are constituted as follows. That is, according to the first aspect of the present invention, a suction-prevention mat made of a durable fiber material laid on the slope of the waterside, and a bottomless concrete placed on the suction-prevention mat It is characterized by comprising a frame, a vegetation mat with a pocket hole stored in the concrete frame body, and a pot seedling planted in the pocket hole of the vegetation mat.

According to a second aspect of the present invention, in the first aspect of the present invention, the vegetation mat covers an opening corresponding to a pocket hole of the vegetation mat housed in the concrete frame. Is provided with a lid mounted on the concrete frame.

According to the third aspect of the present invention, a suction-prevention mat made of a durable fiber material is laid on the slope of the waterside, and a bottomless concrete frame is placed on the suction-prevention mat. Are placed and arranged, a vegetation mat is stored in the concrete frame body, and a pot seedling is planted in a pocket hole formed in the vegetation mat, thereby revetment and greening of the waterside are characterized.

[0009] Even when the suction-prevention mat laid on the slope of the waterside is pressed down by the concrete frame and fixed on the slope, and the water is increased, the scouring of the slope is prevented by the suction-prevention mat. Can come off.

[0010] Since the vegetation mat is housed in the concrete frame, the growth base material filled in the mat is stably held, and the pot seedling planted in the pocket hole is also stably held. Grows healthy. In addition,
If the lid is placed on the vegetation mat, the growth base material and the potted seedling in the vegetation mat can be more effectively protected.

By placing and arranging a concrete frame on a suction-prevention mat laid on a slope, an effective revetment can be easily provided and the concrete can be provided by growing pot seedlings. Because the frame is covered with plants, a natural landscape can be obtained.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of a seawall vegetation structure and a method for constructing the same according to the present invention will be described in detail. FIG. 1 is an assembling correspondence diagram showing a main part configuration of a seawall vegetation structure (hereinafter referred to as a structure), FIG. 4 is a perspective view of a structure constructed on a slope of a waterside, and FIG. 5 is a cross-sectional view thereof. In these figures, reference numeral 1 denotes a slope of a waterside to be constructed, 2 denotes a suction-prevention mat laid on the slope 1, and 3 denotes a mat placed and arranged on the suction-prevention mat 2. The bottomless concrete frame, 4 is a vegetation mat with a pocket hole 5 housed in the concrete frame 3, 6 is a pot seedling planted in the pocket hole 5, and 7 covers the vegetation mat 4. Thus, a concrete lid (see FIG. 3A) mounted on the concrete frame 3 as described above, and 71 is an opening corresponding to the pocket hole 5.

The above-mentioned mat for preventing suction (hereinafter referred to as a mat) 2 is made of a durable vegetable fiber such as coconut mat or felt-based vegetable fiber, or a synthetic fiber material or a non-woven fabric having corrosion resistance and durability. It may be made of a water-resistant fiber material or the like, so that the slope 1 can be prevented from being scoured after the water is increased, and the roots can be sufficiently passed through with the growth of the pot seedlings 6,. It is preferable to use a material having the desired weight and flexibility and having sufficient strength.

The concrete frame 3 (see FIGS. 2 and 3B) mounted on the mat 2 has a length × width × height ×
For example, the thickness is about 1,000 × 500 × 150 × 50 mm, a partition wall 31 is provided in the center, and two square mat storage parts are provided. Bolts 8,. The adjacent concrete frames 3,... Are fixed to each other by fastening nuts (not shown). Steps 132 and 133 for fitting the lid 7 are formed on the upper edges of the side walls 32 and 33.

The vegetation mat 4 stored in the concrete frame 3 includes, for example, soil improvement materials, water retention materials, fertilizers, and the like necessary for growing peat moss, vermiculite, zeolite, coconut fiber, kanuma soil, organic fertilizer, and the like. The growth base material containing is filled.

As the pot seedlings 6 to be planted in the pocket holes 5 of the vegetation mat 4 described above, seedlings raised in a vinyl house or the like may be separately brought to the site. And various seedlings such as waterside plants such as cat willow, other ground cover plants, root stocks and trees.

In the greening by the pot seedlings 6, early greening can be surely realized in addition to the ease of construction, and the concrete frames 3,... And the lids 7,. As a result, the ground of the concrete is not exposed, and the waterside can be greened with a natural scenery.

As described above, by placing and arranging the concrete frames 3,... On the mat 2, the mat 2 can be stably fixed even on the slope 1 where the waterside is inclined, and The mat 4 can be stably held without running off, and its construction is extremely easy. That is, as a construction procedure, a mat 2 is laid on the slope 1 that has been leveled, and a concrete frame 3, 3,.
After the vegetation mats 4,... Are accommodated in each concrete frame 3, the lid 7 is attached to the concrete frame 3 so as to cover the vegetation mats 4,. After loading and closing the lid, place the pot seedlings 6,.
You just have to plant it in ...

The arrangement pattern of the concrete frames 3,... May be appropriately selected and set. For example, an arrangement pattern as shown in FIG. 4 can be formed. in this way,
The concrete frames 3,... Fixed to each other with bolts 8,... And nuts have good fixation to the slope 1, and can stably hold the mat 2 on the slope 1 even when the river water increases. And scouring of the slope 1 can be prevented.

Also, even if the water level of a river or the like rises and water infiltrates into the concrete frames 3, a mat 2 having excellent water permeability and a high suction-preventing effect is laid on the slope 1. Therefore, while the water permeates the slope soil, even if the water level is lowered, the slope soil is not sucked out by the descending water and can be kept in a stable state. The vegetation mat 4 held by the concrete frames 3,... Is stably held without running off.

Also, even if water enters the concrete frames 3,..., The drainage is drained onto the slope 1 from the joint of the mat 2, the drainage is good, and the vegetation mat 4 is stable without running off. The fertilizer base required for vegetation is preserved, and the roots are fixed on the slope 1 through the mat 2 so that the tree can be stably greened at an early stage, and the revetment and greening of the waterside can be realized at low cost. it can.

FIG. 6 shows a different embodiment of the structure according to the present invention. In this case, the lid 17 is formed by a wire mesh having an opening 171 subjected to rust prevention treatment, and the stoppers 9,. .. Can be easily fixed to each concrete frame 3, but plant seeds other than the potted seedlings 6 can be vegetated therearound. By mixing plant seeds, a variety of greening can be performed. The cover 17 may be made of an expanded metal or a punched metal that has been subjected to a rust-proof treatment.

[0023]

As described above, according to the revetment vegetation structure of the present invention, a bottomless concrete frame is placed and arranged on a suction-prevention mat laid on the slope of the waterside. Since the mat for preventing suction is held down by the concrete frame, the mat is stably fixed on the slope and the scouring of the slope is prevented by the mat for preventing suction.

Since the vegetation mat is housed in the concrete frame, the fertilizer base required for vegetation is not lost even when immersed in water, and the plant can be planted in a place where there is a water flow without running off waterside plants. In addition, if the lid is placed on the vegetation mat, it is possible to more effectively prevent the growth base material and the pot seedling from being washed away.

In addition, the concrete frame can use both vegetation and seawalls, is easy to construct, and can realize greening and protection of the waterfront at a low cost at an early stage.

[Brief description of the drawings]

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a view showing an assembling of a main part in an embodiment of a seawall vegetation structure of the present invention.

FIG. 2 is a sectional view of the concrete frame in the closed state.

FIG. 3A is a plan view of a lid, and FIG. 3B is a plan view of a concrete frame.

FIG. 4 is a perspective explanatory view showing an example of construction of the seawall vegetation structure.

FIG. 5 is a cross-sectional view of a revetment vegetation structure constructed on a slope of the waterside.

FIG. 6 is a perspective view showing a different embodiment of a seawall vegetation structure.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Slope, 2 ... Suction prevention mat, 3 ... Concrete frame, 4 ... Vegetation mat, 5 ... Pocket hole, 6 ... Pot seedling, 7, 17 ... Lid.

Claims (3)

[Claims] 1. A suction-prevention mat made of a durable fiber material laid on a slope of a waterside, a bottomless concrete frame placed on the suction-prevention mat, and the concrete A vegetation structure for revetment, comprising: a vegetation mat having a pocket hole stored in a frame body; and a pot seedling planted in a pocket hole of the vegetation mat. 2. A lid having an opening corresponding to a pocket hole of a vegetation mat stored in the concrete frame, and a lid mounted on the concrete frame so as to cover the vegetation mat. The revetment vegetation structure according to claim 1. 3. A suction-prevention mat made of a durable fiber material is laid on the slope of the waterside, and a bottomless concrete frame is placed and arranged on the suction-prevention mat. A method for constructing a vegetation structure for revetment, comprising storing a vegetation mat in a frame body and planting pot seedlings in pocket holes formed in the vegetation mat to revet and revegetate the waterside.