KR20140111776A

KR20140111776A - Seawater penentration prevention structure for well

Info

Publication number: KR20140111776A
Application number: KR1020130026080A
Authority: KR
Inventors: 김윤중; 김원태; 곽동근; 김정주; 남해욱; 김현배
Original assignee: 주식회사 포스코건설
Priority date: 2013-03-12
Filing date: 2013-03-12
Publication date: 2014-09-22

Abstract

The present invention comprises a well (10) installed to receive groundwater in a coastal area; (100) for supplying fresh water to the lower part of the well (10) so as to prevent seawater from penetrating into the well (10) It prevents seawater penetration phenomenon of groundwater so that fresh water can be collected stably.

Description

[0001] SEAWATER PENENTRATION PREVENTION STRUCTURE FOR WELL [0002]

Field of the Invention The present invention relates to the field of environment, and more particularly to the structure of wells.

Groundwater is generally used to secure water resources in coastal areas such as Jeju Island and islands and the East Coast.

In coastal aquifers, the freshwater layer and seawater entering the sea from land are balanced by density, which is known to be governed by Ghyben-erzberg's law.

When the groundwater is taken in excess of the amount available in the area, the groundwater (a) is lowered and seawater penetrates, making the groundwater unavailable. When the sea water surface (c) rises and seawater intrudes into the aquifer , The water quality of the well 10 has not recovered for many years and, in severe cases, it may lose its value as a water source (Fig. 1).

In recent years, the use of seawater as a source of water has been increasing in order to reduce the amount of groundwater as a freshwater source in island and coastal areas. However, seawater desalination facilities have caused a great increase in water treatment costs, In the region, it is difficult to produce water in winter with low water temperature.

Therefore, the maintenance of freshwater aquifers in the coastal region is a very important problem in the area where island and coastal groundwater are used as a source of water.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a structure for preventing seawater infiltration of groundwater by preventing low- And to provide a method of prevention.

In order to solve the above problems, the present invention provides a water treatment system comprising: a well (10) installed to receive groundwater in a coastal area; (100) for supplying fresh water to the lower part of the well (10) so as to prevent seawater from penetrating into the well (10).

It is preferable that the supporting structure 100 is installed on the inland side of the well 10.

The cultivation structure 100 includes a central pipe 110 supplied with the fresh water; And a plurality of pores 120 extending from the lower part of the main pipe 110 to the shore side so as to supply the fresh water to the lower part of the well 10.

The plurality of pipe tubes 120 may be installed to face each other.

It is preferable that the uplifting structure 100 is formed so that the perforated pipe 120 supplies the fresh water to an area below the groundwater a.

Preferably, the feeding structure 100 is formed to supply the fresh water to the oil level pipe 120 in an altitude area below the sea level b.

The method of preventing seawater infiltration of a well using the seawater infiltration preventing structure according to the present invention comprises the steps of: installing the uplifting structure (100) around the well (10) installed in a coastal area; And supplying the fresh water to the submerged structure (100) to supply fresh water to the lower part of the well (10).

It is preferable to use heavy water as the fresh water.

The cultivation step is preferably carried out during the tide.

The present invention proposes a structure for preventing seawater infiltration of a well and a method for preventing seawater infiltration using the same, which can prevent seawater infiltration phenomenon of groundwater at low cost in the island and coastal area, thereby stably obtaining fresh water.

1 is a cross-sectional view of a conventional well structure;
2 shows an embodiment of the present invention,
2 is a sectional view of a seawater infiltration preventing structure.
3 is a plan view of the building structure.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 2 and subsequent drawings, the structure for preventing seepage of a well according to the present invention basically comprises a well 10 installed to receive groundwater in a coastal area; (100) for supplying fresh water to the lower part of the well (10) so as to prevent seawater from penetrating into the well (10).

When fresh water is supplied to the lower part of the well 10 by supplying the fresh water to the surrounding building 10 in the vicinity of the coastal area 10 and the fresh water is supplied to the lower part of the well 10, So that the seawater underground water surface (c) is lowered naturally and seawater intrusion into the groundwater around the well 10 is prevented.

It is preferable that the uplifting structure 100 is installed on the inland side rather than the beach side of the well 10 for efficient cultivation.

The feeding structure 100 specifically includes a central pipe 110 supplied with fresh water; It is preferable for the effective penetration of the fresh water to the ground to have a configuration including a plurality of pipe tubes 120 extending from the lower part of the main pipe 110 to the beach side so as to supply fresh water to the lower part of the well 10.

For the same reason, it is preferable that the plurality of the pipe tubes 120 are installed so as to face different directions (FIG. 3).

It is preferable that the uplifting structure 100 is formed so that the perforated pipe 120 supplies fresh water to the area below the groundwater level a so that the perforated pipe 120 supplies fresh water to the altitude area below the sea level b It is possible to obtain a more satisfactory effect of cultivation.

Although it is possible to use a constant water as the fresh water, it is more preferable to utilize the same water as the sewage reuse water, because the water permeated into the ground is collected through the well 10 while being purified.

On the other hand, the sea water underground water surface (c) varies in height according to the difference of the tide water level. It is effective to perform the upwelling work in the tide where the sea water underground water surface (c) is the highest.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It is to be understood that both the technical idea and the technical spirit of the invention are included in the scope of the present invention.

10: well 100: building structure
110: central pipe 120:

Claims

A well (10) installed to receive groundwater in a coastal area;
(100) for supplying fresh water to the lower part of the well (10) so as to prevent seawater from penetrating into the well (10);
Containment prevention structure of wells containing seawater.

The method according to claim 1,
The deposition structure 100 may include
Is installed on the inland side of the well (10).

3. The method of claim 2,
The deposition structure 100 may include
A central pipe (110) supplied with the fresh water;
A plurality of pipe tubes 120 extending from the lower part of the main pipe 110 to the shore side so as to supply the fresh water to the lower part of the well 10;
Wherein the seawater infiltration prevention structure of the well is characterized by comprising:

The method of claim 3,
Wherein the plurality of holes (120) are oriented in different directions.

The method of claim 3,
The deposition structure 100 may include
Wherein the porous pipe (120) is formed to supply the fresh water to an area below the groundwater level (a).

6. The method of claim 5,
The deposition structure 100 may include
Wherein the foraminous pipe (120) is formed to supply the fresh water to an altitude area below the sea level (b).

A method for preventing seawater infiltration of a well using the seawater permeation preventive structure according to any one of claims 1 to 6,
Installing the lifting structure (100) around the well (10) installed in a coastal area;
Supplying fresh water to the bottom of the well (10) by supplying the fresh water to the growing structure (100);
Wherein the method comprises the steps of:

8. The method of claim 7,
Wherein the deionized water is used as the fresh water.

8. The method of claim 7,
Wherein the cultivation step is performed during tide.