KR20120106215A - Groundwater filling and management system - Google Patents

Abstract

PURPOSE: An underground water filling and a management system is provided to reduce the damage caused by drought by using a first filling reservoir filled with underground water. CONSTITUTION: An underground water filling and a management system comprises a dam(110), a first filling reservoir(120), and a first water channel(152). The dam or a reservoir is constructed in the hilly sections of the valley of mountain regions. The first filling reservoir is constructed around a reservoir or the dam. The first water channel connects the reservoir and the first filling reservoir. Underground water is filled in the strata around the first filling reservoir through the first water channel.

Description

Groundwater Filling and Management System {GROUNDWATER FILLING AND MANAGEMENT SYSTEM}

The present invention relates to a groundwater charging system for securing water resources in preparation for drought, and more specifically, by allowing groundwater to be sufficiently charged in the ground, it is possible to use water resources in abundance in everyday times, and reduce damage due to lack of water resources during dry season or drought. To groundwater filling and operation systems.

Drought has had a big impact on Korean history. In 1901, just over 100 years ago, the annual precipitation amounted to only 394 mm and drought lasted 29 years. This eventually resulted in the collapse of the Korean Empire and its destruction. Such droughts have occurred periodically even before, and are known to have great relations with the nationalities of Goguryeo, Baekje, Bohai and Goryeo.

Dams and reservoirs are structures built in mountain valleys or rivers. Such dams and reservoirs are for flood control and drought prevention, and recently, large dams for power generation are being built in addition to the above-mentioned purposes. However, in the case of large dams, it is difficult to find suitable topographical conditions, and even if the topographical conditions are suitable, it is not easy to implement in terms of environmental and cost. In particular, in the case of large dams or large reservoirs, the amount of evaporated water stored reaches 1,000 mm per year based on the central region, which is inefficient because it corresponds to the amount of water that Seoul citizens use in a year.

On the other hand, when the water stored in dams or reservoirs is depleted due to long-term drought, there is no suitable water resource except for groundwater. Therefore, the government dug over 20,000 wells to use groundwater during drought. However, recently, as winter farming using vinyl houses has prevailed, the groundwater level has decreased year by year due to the rapid increase in the amount of groundwater using the wells, which causes the groundwater to be depleted.

Currently used groundwater has been charged over tens of millions of years since similarity. As groundwater usage increases, restoring groundwater levels that are lowered may vary from region to region but can take thousands of years. Nevertheless, research on groundwater filling is rarely carried out.

Currently used groundwater filling methods include direct injection method and indirect absorption guide method. Among them, the direct injection method is a method of directly injecting water into the groundwater layer through a well, and the indirect absorption method is a method of allowing the surrounding water to naturally penetrate into the groundwater layer. However, the above two methods have the following problems.

First, in the dry season, there is a lack of water around the river or well, so groundwater filling does not occur. This problem is particularly acute for South Korea, which has climatic conditions where precipitation is concentrated during the summer months.

Second, because the water flows to a low place, there is a problem that the groundwater layer higher than the river is not properly charged even if there is enough storage space and time. That is, since most of the rivers are located in a lower area than the surrounding area, the groundwater layer of the highlands, which can serve as a water reservoir, is dead.

Third, during the Flood season, water is abundant around rivers or wells, so the opposite phenomenon occurs. If the dam keeps raining because the dam is full of water and can no longer store water, it is necessary to drain the already stored water to improve its flood preparedness. In other words, there is a lack of surface water to be filled with groundwater during the dry season, and abundant surface water flows during the flooding season.

Conventional applications for groundwater filling include "manhole structures for groundwater inflowing water (Korean Patent No. 10-0930723)", "rainwater storage tank equipped with a siphon type overflow device (Korean Patent No. 10-0918320) And a sidewalk block assembly (Korea Patent Publication No. 10-2010-0040171) that enables surface cooling or heat transfer through underground supply and evaporation of rainwater.

However, the “Manhole Structure for Groundwater Inflow” and “Rainwater Reservoir with Siphon Overflow System” are only described for the method of purifying and sending the inflow of rainwater to the ground. Not listed. In addition, “walkway block assemblies capable of surface cooling or heat transfer through underground supply and evaporation of rainwater” are devices that send rainwater to groundwater, but are small and rather than aspects of groundwater filling. It provides enough moisture to prevent or grow trees.

The present invention is to solve the above-mentioned problems of the prior art to create a structure to store the surplus surface water separately without discarding to increase the flood protection function, and to increase the amount of underground filling by expanding the time and space for introducing the surface water resources underground Its purpose is to provide groundwater filling and operation systems.

Groundwater filling and operating system according to the present invention for achieving the above object is a dam or reservoir built upstream of the mountain valley, the first charging reservoir built around the dam or the reservoir, and the dam or And a first channel connecting the reservoir and the first rechargeable reservoir.

According to the above configuration, a portion of the water discharged from the dam or the reservoir may be supplied to and stored in the first rechargeable reservoir through the first channel, thereby filling the groundwater in the surrounding strata of the first rechargeable reservoir. .

On the other hand, the groundwater filling and operation system according to the present invention, the second charging reservoir built in the vicinity of the first charging reservoir, and the second channel for connecting the first charging reservoir and the second charging reservoir. It may be configured to include more.

According to the present invention of the above-described configuration, the surplus water resources caused by the summer heavy rain is stored in the filling reservoir without flowing to the river and used for groundwater filling. This reduces the risk of flooding because surplus water does not flow into the stream. In particular, when the reservoir for charging is located in the highlands than the dam or reservoir, when the water is charged by using a pump or the like, the underground space, which was not normally stored in the groundwater, may be used as a warehouse for storing water resources.

In addition, when the summer stored in the reservoir for heavy rains and slowly flowing to the low water can be filled with groundwater even in the dry season, such as water was not possible because there is no water other than the river. The groundwater thus charged can reduce the damage caused by lack of water resources during dry seasons and droughts.

In addition, it can be effective in preventing dry season during dry season, protecting inland fish species, diversifying ecosystem, etc., and because water resources are charged underground, the loss due to evaporation can be reduced as much as possible. Can be.

1 is a schematic diagram of the groundwater filling and operation system according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the accompanying drawings, embodiments of the present invention will be described in detail. In the following description of embodiments according to the present invention, and in adding reference numerals to the components of each drawing, the same reference numerals are added to the same components as much as possible even though they are shown in different drawings.

1 is a schematic diagram of a groundwater filling and operation system according to an embodiment of the present invention.

The groundwater filling and operating system according to the present embodiment includes a dam 110 constructed in an upstream highlands of the mountain valley, a first rechargeable reservoir 120 constructed in a valley lower than the dam 110, and a first reservoir. It includes a second and third rechargeable reservoirs 130 and 140 built in the valley of the lower zone than the rechargeable reservoir 120.

This embodiment of the above-described configuration by using a plurality of filling reservoirs (120, 130, 140) to store the water and then slowly flows slowly by a small amount of water (內 水) can flow to the sea through the river can be minimized. Therefore, as the domestic water stays on land for a long time and more time penetrates into the strata, more water resources may permeate the surrounding strata and downstream layers of the reservoirs 120, 130, and 140 to be filled with groundwater.

Looking at each component of the groundwater charging and operating system according to this embodiment with reference to Figure 1 in more detail.

Dam 110 is constructed in the upstream of the mountain valley. The dam 110 may be a dam currently constructed or a dam to be newly constructed.

The first to third rechargeable reservoirs 120, 130 and 140 are means for storing ground water to fill the surrounding strata of the reservoirs 120, 130 and 140. These filling reservoirs (120, 130, 140) is preferably installed in the high ground so that the groundwater can be naturally charged around and downstream. However, when located in the highlands than the dam 110, since energy must be used to store the water discharged from the dam 110, it is preferable to be located in the lowlands than the dam 110 possible. In addition, it is preferable that the water flows from the surrounding valleys, but since the water can be supplied from the dam 110, it is preferable to install the water to the terrain to send the supplied water to the strata.

The water supplied to the filling reservoirs 120, 130, and 140 uses water stored in the dam 110, which is relatively abundant in quantity. To this end, between the dam 110 and the first charge reservoir 120, between the first charge reservoir 120 and the second charge reservoir 130, and the second charge reservoir 130 and the third charge Waterways 152, 154, and 156 are installed between the discharging resins 140. In particular, when the dam 110, the first rechargeable reservoir 120, the second rechargeable reservoir 130 and the third rechargeable reservoir 140 are sequentially constructed from the upstream highlands of the mountain valley, as in the present embodiment, Water stored in the dam 110 can be easily supplied to the third charging reservoir 140 constructed in the lowest zone.

At this time, the water supplied to the first to third rechargeable reservoirs (120, 130, 140) is preferably an idle water resource of the dam (110). Such idle water is typically stored in the rainy season during the rainy season and used for power generation before the fall rainy season to increase flood control. For example, when excess water is generated by the heavy rain, the discharge may be immediately stored in the first to third rechargeable reservoirs 120, 130, and 140 without being discharged immediately, thereby reducing the risk of downstream flooding.

Waterways 152, 154, and 156 for supplying the water stored in the dam 110 to the filling reservoirs 120, 130, and 140 may include a first channel 152 connecting the dam 110 and the first filling reservoir 120, and a first charge. The second channel 154 connecting the solvent reservoir 120 and the second rechargeable battery 130 and the third channel 156 connecting the second rechargeable resin 130 and the third rechargeable battery 140. It includes. The channel 15, 154, 156 is preferably a culvert of an open top only, but the side or the bottom is partially open at a predetermined distance so that water flowing along the channel 152, 154, 156 can seep into the surrounding strata of the channel 152, 154, 156. It may also be in the form.

The dam 110 and the filling reservoirs 120, 130, and 140 are provided with discharge passages 112, 122, 132, and 142 for discharging the stored water as necessary. And on the discharge path (112, 122, 132, 142), the filling beams (114, 124, 134, 144) for filling the ground water by using the water discharged from the dam 110 and the filling reservoir (120, 130, 140). The filling beams 114, 124, 134, 144 is preferably constructed at a higher position than the surroundings, and since water is supplied from the dam 110, it is not necessary to be installed in a valley where water flows.

Meanwhile, in the present embodiment, the dam 110 is illustrated as a means for supplying water to the filling reservoirs 120, 130, and 140, but is not necessarily limited thereto, and may be a large-capacity reservoir capable of supplying water to a drought or dry season. In addition, when the water purification system (not shown) is installed in the filling reservoirs (120, 130, 140) receiving the water discharged from the dam 110 and the filling beams (114, 124, 134, 144) receiving the water discharged from the filling reservoirs (120, 130, 140) Can be prevented from contamination. In addition, the surroundings where the reservoirs 120, 130, 140, the filler beams 114, 124, 134, 144, and the water channels 152, 154, and 156 are installed are preferably soils where water can naturally penetrate into the ground.

Groundwater permeated into the surrounding reservoirs of the filling reservoirs 120, 130, 140 and the filling beams 114, 124, 134, and 144 of the present embodiment flows toward the lowland at a speed of about 100 to 1500 m per year. This is much slower than the rate of flow to the sea through rivers, increasing the time that the domestic water stays on land, that is, the time that humans can use it. The groundwater thus filled has almost no consumption due to evaporation, so the spring water in the lowlands does not dry out for a long time. Therefore, if the groundwater is charged using the filling reservoirs 120, 130, 140 and the filling beams 114, 124, 134, and 144, the water resources can be stored in large quantities without constructing a large dam, which is effective in controlling drought and flood control.

In terms of cycles, it is expected that large droughts will continue for more than 10 years around 2025 (Byun Hee-ryong et al., 2008, Asia Pacific Journal of Atmospheric Sciences). As a countermeasure against such a drought, the groundwater charging system according to the present embodiment is determined to be the best, because the groundwater charged using the present embodiment may exist as a water resource for a long time and there is no fear of evaporation. In addition, although there are some differences depending on the region, if there is no rain, even if the groundwater is consumed within two years, if the groundwater charging system according to the present embodiment is applied, the area where the groundwater does not stop even if it does not rain for 10 years is expected to increase. do. That can be at least one safeguard against a 10-year drought.

In addition to the effects described above, it has the following side effects.

First, the groundwater level rises. Due to global climate change and the expansion of vinyl house farming methods, the groundwater level is decreasing every year. When the present embodiment is applied, the groundwater level can be raised again by solving the above problems. This is expected to increase the arable land using vinyl houses.

For reference, the plastic house uses groundwater for cooling and heating devices, so that the groundable crops are significantly reduced without groundwater. Therefore, it can be regarded that the area where the plastic house is located is a geological area where groundwater penetrates. The groundwater thus infiltrated stays in place or flows very slowly, unless necessary, so that it can be pumped through the well if necessary. However, if it is a layer that enters the groundwater and flows to the sea, like Jeju Island, you should take different measures.

Second, it is easier to control the quality of the groundwater. When using the water purification device (not shown) installed in the filling reservoir 120 and the filling beam 130 can maintain a constant water quality flowing into the groundwater. In particular, when the maintenance for water quality protection is necessary, even if only the reservoir for filling 120 and the filling beam 130 can be seen a great effect.

Third, during the dry season, there will be a lot of dry springs, which will be reduced, resulting in a variety of ecosystems such as abundant fish in the inner waters.

While the present invention has been particularly shown and described with reference to preferred embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Those skilled in the art will understand. Therefore, the scope of protection of the present invention should be construed not only in the specific embodiments but also in the scope of claims, and all technical ideas within the scope of the same shall be construed as being included in the scope of the present invention.

110: dam 120: first reservoir for charging
130: second rechargeable reservoir 140: third rechargeable reservoir
112,122,132,142: Gout 114,124,134,144: charging beam
152,154,156: channel

Claims (6)

Dams or reservoirs built upstream of mountain valleys;
A first charging reservoir constructed around the dam or the reservoir; And
A first water channel connecting the dam or the reservoir with the first charging reservoir, wherein a portion of the water discharged from the dam or the reservoir is supplied to and stored in the first charging reservoir through the first channel; Groundwater charging and operating system, characterized in that for filling the groundwater in the surrounding strata of the first rechargeable reservoir. The method according to claim 1,
A second charging reservoir constructed around the first charging reservoir; And
And a second channel connecting the first rechargeable reservoir and the second rechargeable reservoir, wherein a portion of the water discharged from the first rechargeable reservoir is supplied to the second rechargeable reservoir through the second channel. And stored in the groundwater to fill the surrounding strata of the second rechargeable reservoir. The method according to claim 2,
Groundwater filling and operation system further comprising a filling beam installed on the dam or the discharge passage of the reservoir. The method according to claim 2,
Groundwater filling and operation system further comprising a filling beam installed on the discharge path of the first charging reservoir. The method according to claim 2,
Groundwater filling and operation system further comprising a filling beam installed on the discharge passage of the second charging reservoir. The method according to any one of claims 3 to 5,
Groundwater filling and operation system further comprises a water purifying device for purifying the water supplied to the first reservoir for charging, the second reservoir for charging and the filling beam.

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