KR0147725B1 - Revetment method for making the sand bed of natural type watercourse - Google Patents

Abstract

The present invention is a natural type revetment method for the four main portion of the river reservoir into the conventional conventional treatment of the reservoir to the reservoir in the reservoir has a drawback to reduce the variety of flora and fauna and cause environmental pollution.

The present invention, as shown in the first drawing of the first figure in the base end portion (1) of the river basin to put a wooden pile (2) and weaving willow branches (3), the upper surface covering (5) on the slope (4) fixed stake ( 6) and the fixed wire (7) is installed, the planting coating (8) is to plant the reed scavenger (10) and pampas grass (11) on the reed gabion (9).

Description

Natural type revetment method of four key part of river reservoir

1 is a perspective view showing a natural relief method according to the present invention

2 is a side view of FIG. 1

3 is a perspective view of another embodiment of the natural relief method according to the present invention

4 is a side view of FIG.

Figure 5 is a perspective view of another embodiment of the natural relief method according to the present invention

6 is a side view of FIG.

* Explanation of symbols for main parts of the drawings

1: base 2: wood pile

3: weaving willow branches 4: slope

5: covering the lichens 6: fixed pile

7: fixed wire 8: food coating

9: reed manta 10: reed reaeration

11: Water Pavement Abandoned 12: 섶 dan 2 stages

13: middle piling 14: stacking green horse

15: Reed root planting 16: Reed planting

17: stacking piles 18: green sack

19: planting reed 20: jute mesh

21: pussy willow

TECHNICAL FIELD The present invention relates to a four-week natural revetment method of a river reservoir. The jujube is a sedimentary topography that is formed inside the grain part in the case of natural rivers. In the case of straightened urban rivers, the head column is formed under the direction of water flow. The water stream of the main column is divergent flow, which has a slow flow rate and continuous deposition, so that the cross section of the bottom is a gentle slope.

In more detail, the present invention relates to a river ecosystem regeneration method that solves all the shortcomings of the concrete revetment by treating the reservoir with a reservoir.

In recent years, the river environment has changed significantly as land use in river basins has increased and urbanization has progressed. Such changes in the river environment were accelerated because the river environment maintenance method was focused on large-scale civil works for watershed and completion, and degraded the unique natural environment function of the river. As well as water pollution of rivers, the density of fish and algae in the river vegetation and rivers as a component of ecosystems has decreased, and the diversity of habitats and animals has been reduced, so the function of ecosystem habitats has declined.

In urban rivers with high density of land use around rivers, the river environment was modified due to the maintenance of reservoirs and reservoirs, linear maintenance of river channels, and construction of river banks. In particular, as the reservoirs were strengthened, the curved lines of natural rivers changed to straight lines, and the lakesides were concreted. Reservoir lakes have high ecological productivity and biodiversity, and are equivalent to ecotones in natural river ecosystems. In addition, the concrete conversion of transition zones primarily inhibits the occurrence of animals and plants inhabiting transition zones, and secondly, greatly affects the entire river ecosystem.

The ripple process of adverse effects on the river ecosystem stems from the removal of vegetation.

The elimination of natural vegetation damages the plant base itself and, in turn, damages the habitats of aquatic insects, fish and algae. Concrete revetment blocks physically prevent river waters from seeping into the soil layer, resulting in the regeneration of natural streams in wetland vegetation. In addition, when the shade provided by the celestial vegetation disappears, the water temperature changes so much that it loses its function as aquatic benthic, fish habitat, and spawning ground. It is damaged.

Therefore, in recent years, as interest in the river environment has increased, attempts have been made to regenerate and restore ecologically damaged river environments.However, the research and development of methods and materials that make them economically and technically feasible have been undermined, resulting in the regeneration of damaged river environments. And recovery efforts are just relief.

Attention to the development of the process in the present invention relates to the vegetation recovery of the coastal rest.

It is an object of the present invention to replace the concrete revetment with natural revetment as the damage of the river ecosystem originates from the removal of vegetation of the retreat, so that the revetment function as a transition zone of the river ecosystem to regenerate the river ecosystem.

The natural river plan through the introduction of the natural remodeling method is based on the stability of river dimensions and the reflection of Korean river characteristics. To be.

The present invention will be described in detail with reference to the accompanying drawings.

The present invention is a wooden pile (2) and willow branches weaving (3) on the base end (1) and the slopes (4) to the lattice covering (5) to be fixed with a fixed pile (6) and a fixed wire (7), Planting coating (8) is planted from the bottom of the reed mango (9), reed aeration (10) or a turf, pampas grass (11).

The above-mentioned natural relief method is depth: about 0.1m, flow rate: about 0.14m / sec, four weeks: straight lagoons that are not concerned about scour, bottom quality: sand or historical place is suitable, proximal end (1) The stakes used are made of stems or tree trunks of young trees. Round wooden stakes sharpen the ends of trees and trim heads.

It is desirable to install wood piles at intervals of 0.3 to 0.8 m and weave hardwoods (willow wood) that can be easily bent in three stages with a height of about 0.3 to 0.8 m.

WATTLING of slopes can use various kinds of branches of willows as materials, and the fixed piles (6) are driven into the ground in two or several rows on the flat surface to be 0.1 ~ 0.2m above the ground. The spacing between piles is determined between 0.7 m and 1 m depending on the slope of the dike, the soil and the type of river.

Water pike, reed turf of planting cover (8) is directly planted at 0.5m interval in narrow pit after sediment is removed and lightly pressed with stone.

Loosen the wire mesh at the bottom, fill the coarse gravel and reed bundle, and connect it tightly through the wire.

The linked cylindrical reed turf should be 0.05 to 0.07 m high above the water. For fixation, 1m long wooden stakes are driven deep and 0.02 ~ 0.03m on the surface.

Lath cover is a method that has been frequently used as a protector of the surface, and is easy to construct and bends easily, so it is particularly suitable for riverbeds where the riverbed material is sand. As the willow grows after construction, it can achieve a good natural forest landscape. In addition, it is possible to plant other kinds of wet plants, and to create diverse habitats by living organisms. However, if the forest is dense, the hydrophilicity is lowered, so that the hydrophilicity can be secured by appropriate logging and pruning.

3 and 4 illustrate another embodiment of the present invention, wherein the proximal end 1 is provided with two end stages 12 and a middle piling 13, and the slope 4 is a green lap stacking ( 14), the planting coating (8) is a reed root neck planting (15) and reed aeration planting (16).

This method is suitable for water depth: 0.15m, flow rate: 0.2m / sec, sand column, bottom quality: silt or sand. Lie down.

Drive wooden stakes to secure each tier.

GREEN BAG is filled with sand or coarse soil in a pocket made of natural fibers. Drive wooden stakes to secure pockets. Reed neck root planting of food regeneration coat collects the root part with two nodes that are not injured. Under the protection of young shoots, put it in a pit 0.2-0.3m deep and fill it with soil, sand and gravel.

After removing the sediment, the reed turf is planted directly in a narrow hole at 0.5m intervals and lightly pressed with stones.

According to this method, when the roots of the reeds and the roots of the roots are active, erosion and scour prevention effect of the lakeside appear, and the formation of water plant community plays a role in regeneration of the river ecosystem.

Exemplary Figures 5 to 6 are still another embodiment of the present invention, the pile pile juncture 17 on the proximal end 1, the green lap pile 18 on the slope 4, the reed planting planting 19, Planting coating (8) is made with jute netting 20 and pussy willow (21).

The method is about 0.3m / depth, flow rate: 0.3m / sec, bottom quality: suitable for silt or sand, the base of the wooden pile is about 0.3 ~ 0.5m when aligning like a bundle crosswood.

The slope is filled with sand or coarse soil in a bag made of natural fiber, and wedged weeping willow branches and weeping willow piles to fix the bag.

Planting cover is planted with reed turf at 0.5m intervals after removing sediments. JUTE NET, a decomposable natural fiber 4cm thick, 0.6m wide and 1m ² wide, is laid and pinned.

At the upper end, the willow branches are deeply inserted into the ground so that they remain on the ground surface about 3 to 4 high. The interval between the hooks is 0.3 ~ 0.5m. After the hooks, the space of the hole is filled with soil and filled.

In planting purified plants (reeds, moon-roots) and increasing the diversity of the environment from the lower part to cilantro sites, purified plants are relatively easy to plant, but care should be taken to prevent the destruction of native plants by over gathering. There is a need. Until planting to some extent after planting, resistance to water and blue is low, so prevention of seedling prevention is necessary. However, when the plant stalks and forms a colony, a relief effect is obtained.

The concrete revetment method that is conventionally applied to the reservoir water reservoir is a method that is not environmentally sound because it has good river dimension function but low ecosystem support function for flood drainage. It is being evaluated. However, the natural relief method according to the present invention is an environmentally friendly eco-technology that compensates for the disadvantages of the concrete relief method and promotes the regeneration of the ecosystem.

The artificially reclaimed riverside retreat is an ecological spatial structure that corresponds to the transition zone. When ecologically evaluating the environment, the transition zone (the point of contact with another environment spatially adjacent to a particular environment) is a place with high ecological productivity and species diversity. In particular, the Haan-Chuidae is a place where the ecological characteristics of the transitional zone are prominent as water and water are in contact with each other. Therefore, if the concrete riverside of the existing river is replaced by natural lakeside, the function of ecological trend can be restored.

The ecosystem of natural rivers is an ecosystem with outstanding dynamism due to the fluvial system. Conventional large-scale civil engineering works that have been carried out in rivers have reduced the dynamics of river ecosystems, but natural retreats promote the generation of animals and plants inhabiting riversides and waters, thereby restoring the dynamics of river ecosystems.

The point source generated from conventional riverside land use flows to sewage treatment plant through the drainage facility, but the sewage treatment is carried out, but the non-point source flowing into the stream from the riverside surface runoff is not controlled. It is not easy and is a major cause of river water pollution. The vegetation community of a certain width formed by the natural relief method can function as a vegetation filtration band so that nonpoint pollution can be effectively controlled.

With the introduction of the natural protection method, the damaged ecosystem is regenerated, and the cycle of production and decomposition is smoothed, and economic benefits can be obtained by reducing the environmental pollution and saving of maintenance costs due to the river's self-cleaning action. It is possible to prevent budget waste caused by unnecessary large-scale river maintenance projects, and to restore the damaged ecosystem to not only enhance the value of land use, but also to create a sound river ecosystem or pleasant river space through the development and application of natural river methods. Work is inexpensive in terms of opportunity cost compared to creating additional public open spaces.

In addition, with the rapid development of the national economy and the growing awareness and demand of the people's environment, the rivers that remain as natural spaces to enjoy nature in the existing high-density urban framework Turning to the city is an effective way to enhance the quality of the urban landscape.

Claims (3)

Wood pile (2) and willow branch weaves (3) on the base end (1) of the river basin, and a slope (4) on the slope (4) is fixed with a fixed pile (6) and a fixed wire (7), Planting coating (8) is the four-way natural revetment method of the river reservoir, characterized in that to plant the reed mango (9), reed aeration (10) or turf, water plows (11) from the bottom. According to claim 1, wherein the proximal end (1) is a two-stage stage (12) and the middle pile 13, the slope 4 is a green bale stack (14), the planting coating (8) to the reed root neck Four-way natural revetment method of the river reservoir characterized by planting (15) and reed planting (16). The method according to claim 1, wherein the pile ends (17) on the base end (1), the green sack stack (18), the reed planting (19), the planting coating (8) jute manure (20) on the slope (4) 4) natural shogunate method of stream water reservoir, characterized in that the willow barb (21).