KR100302853B1 - Treatment device of underground water closed hole and method thereof - Google Patents

Abstract

PURPOSE: Provided is a treatment device for an underground water closed hole which inserts a shielding tool to close the closed hole easily so that it helps closing work to be done easily. CONSTITUTION: The treatment device for the underground water closed hole comprises the parts of: the shielding tool which is deeply inserted into the closed hole(1) and filled by liquid to expand an expansion tube(24) for closing to an internal wall of the closed hole and shielding the lower space of the closed hole; a support tool which is supported in a location wherein the shielding tool is inserted into the closed hole; a hose for liquid injection(42) which is connected to an injection hole for the shielding tool to fill the expansion tube by liquid; and an adverse tide prevention tool which is selectively placed in the injection hole of the expansion tube or the hose to prevent liquid from being flown adversely.

Description

Groundwater waste hole treatment device and method

The present invention is used for the purpose of preventing the contamination of the groundwater to close the waste pores caused by the failure of groundwater deep well development or the depletion or contamination of ground water due to long-term pumping of the groundwater well. It relates to a groundwater waste hole treatment apparatus and method.

As industrialization progresses, various industrial wastewater and domestic wastewater increase rapidly, and the water quality of the water supply source is rapidly deteriorating. For this reason, enormous costs are invested in purifying water taken from a drinking water source to be suitable for drinking water. Nevertheless, consumers do not believe the quality of tap water invested with huge purification costs as consumers, and most of them use drinking water produced and sold by the development of groundwater as drinking water. However, it is known from the media that some of these bottled waters are commercially available even though they do not meet the standards.

In this way, the development of groundwater in a clean area and the manufacture of bottled water, even if the bottled water is contaminated, is produced and sold. It is caused not only because the surface water flows deep into the underground and pollutes the clean underground vein at once, but also because the contaminated groundwater enters the adjacent heart well by the vein and the groundwater is contaminated.

The development of groundwater is not only distrust of tap water, but also more and more groundwater wells are being developed year by year due to various requests such as agricultural water, drinking water, industrial water, tourism water, and groundwater once again contaminated. Given that it takes a long time, it is urgently needed to treat the waste holes so that they are not contaminated.

Looking at the general construction process for the development of groundwater, there may be differences depending on the geological state, but in general, the soil layer or the weathered rock layer is initially settled and the rock layer below it is settled. The diameter of the landing bit that excavates the soil layer or fossilized rock layer is generally one step larger than the diameter of the bit that lands the rock layer. That is, when the soil layer or the weathered rock layer is met and the rock layer is met, the soil diameter or the weathered rock layer is increased in order to improve the inflow of soil into the lung hole and the discharge of the rock sludge generated when the soil is landed after raising the first installed bit. After the fitting casing is forcibly driven, the excavator is equipped with a bit of a diameter smaller than the landing diameter of the soil layer or the weathered rock layer to continue drilling the rock layer to the depth to secure the required discharge amount.

As mentioned above, in the groundwater development process, the groundwater contamination by the surface water is applied to the soil layer or the bottom layer of the casing by placing the casing in the soil layer or the weathered rock layer without being deeply embedded in the rock layer when the casing is forced. The contaminated surface water that penetrates through the weathered rock is caused by inflow into the rock. In this state, the soil layer or the weathered rock layer falls into the heart well or is lost.

Therefore, in order to prevent such a buried feeling, a so-called grouting construction is required in which the lower end of the casing made of stainless steel is pushed to the rock bed and then the concrete is shielded with concrete by injecting concrete to the outside of the casing, but the lower end of the casing is not stuck to the rock bed. If not, the concrete liquid may seep through the soil layer or weathered rock into the waste hole and contaminate the groundwater. In addition, if grouting is applied after rocking the casing to rock bed, the groundwater can be protected from contamination. If the purpose is not only grouting construction, but also deliberately inadequate construction of the tip of the casing in the soil layer or weathered rock layer when the casing is put to further adversely affect the groundwater quality conservation.

After the development of the heart well, the yield is reduced due to long-term pumping, surface water contaminated with the poorly developed heart well as described above, and the water quality of the groundwater is greatly degraded, or the heart heart is buried or deformed due to the loss of soil or weathered rock layers. In this case, the wells must be disposed of in the air (closed wells for the purpose of preventing groundwater contamination).

Conventionally, as shown in FIG. 10, as shown in FIG. 10, approximately 50% of the inside of the closed hole 91 having the casing 92 embedded therein is filled with gravel 93, and the upper portion thereof contains sand ( 94) to a height of 1 to 2 m, and then injected mortar (95) mixed with bentonite, and then pouring and curing the concrete (96) while applying a high pressure mortar (95) mortar (95) ) And the method for treating the closed hole 91 with concrete (96) has been generally used. If the heart development fails, the work is preferably performed after removing the casing 92 if possible, but the waste air treatment may be performed with the casing 96 intact. In this way, the water vein is blocked by the mortar 95 and the concrete 96 mixed with bentonite, and the inside of the closed hole 91 is closed so that the contaminated surface water does not flow into the closed hole 1.

However, the above-described closed hole treatment method has the following problems.

First, in order to apply grouting pressure to concrete when placing concrete, expensive compression equipment is required, as well as a high-technologist is required, which entails enormous costs for waste disposal.

Second, considerable research and review are required to determine the thickness and composition ratio of each layer of filling material to be filled in the cavity, and considering the structure of the cavity having a narrow aperture, fillers such as gravel, sand, bentonite, mortar, and ready-mixed concrete are needed. It's also hard to see if it's properly charged. As a method, it is possible to consider the method of processing the waste air by checking the inside of the closed air using a closed circuit television, but this is not practical. There is also the hassle of having to prepare various kinds of fillings.

Third, in the process of filling the mortar or concrete into the closed holes, the groundwater is likely to be contaminated by the mortar or concrete liquid already filled under the relatively large voids of sand and gravel. By blocking even the veins, the veins of the rock do not flow and are easily contaminated.

Fourth, after the completion of the waste ball treatment work, it is impossible to confirm whether the waste ball treatment is well performed, and if a pressure is not applied to the concrete until the curing of the concrete is completed, the water vein is formed between the uncured concrete. The effect of the treatment is lost.

Fifth, after the completion of the waste hole treatment work, the concrete is cured without gaps in the waste hole and is completely blocked to the bottom of the waste hole by other fillers, so it is easy to perform water quality tests such as recovery of water quality and increase of flow rate for the waste hole. It is difficult to judge whether the redevelopment of the closed hole is not possible because there is no method, and even when it is necessary to redevelop the closed hole, the closed hole is completely blocked, so it is difficult to reach and the cost of the landing is high.

The present invention has been made in view of the above-described problems, and aims to safely process waste air, that is, waste air, so that the contaminated surface water does not flow into the waste air.

Another object of the present invention is to make it easy to determine the water quality in the waste hole to easily know whether to recycle, and also to facilitate the redevelopment of the waste hole.

1 is a schematic cross-sectional view showing a closed hole treated by the groundwater closed hole treatment apparatus according to a first embodiment of the present invention.

Figure 2 is a schematic cross-sectional view showing the closed hole treated by the groundwater waste hole treatment apparatus according to a second embodiment of the present invention.

Figure 3 is a schematic cross-sectional view showing the waste hole treated by the groundwater waste hole treatment apparatus according to a third embodiment of the present invention.

4 is an enlarged cross-sectional view of the main portion of FIG. 3;

Figure 5 is a schematic cross-sectional view showing the closed hole treated by the groundwater waste hole treatment apparatus according to a fourth embodiment of the present invention.

6 is an enlarged cross-sectional view of the main portion of FIG. 5;

7 is an enlarged perspective view of main parts of FIG. 5;

8 is a cross-sectional view showing an example of another closed hole treated by the groundwater closed hole treatment apparatus according to the third embodiment of the present invention.

Fig. 9 is a partially enlarged cross-sectional view showing an example of another closed hole treated by the groundwater closed hole treating apparatus according to the fourth embodiment of the present invention.

Figure 10 is a schematic cross-sectional view showing the closed hole treated by the conventional groundwater waste hole treatment apparatus and method.

Explanation of symbols for the main parts of the drawings

1: Closed hole 1a: End

2 shield 3 observation pipe

5: rope 6: concrete

7: sand 11: casing

12 cover 21 support tube

22: upper plate 23: lower plate

24: expansion tube 41: air compressor

42: air injection hose 81: ground surface

82: water vein

Groundwater waste hole treatment apparatus according to the present invention for achieving the above object, the lower plate 23 having a support tube 21 protruding upwards, and is fitted to the support tube 21 of the lower plate with a clearance to the lower plate An expansion tube interposed between the fixed upper plate 22 and the upper and lower plates 22 and 23 around the support tube 21 to expand as the fluid is injected and close to the wall surface of the closed hole 1. A shielding opening 2 which is composed of 24 and is inserted into the closed hole at a predetermined depth; Support means (3) (5) (7) for supporting the shield opening inserted into the closed hole; A fluid injection hose 42 connected to the expansion tube inlet 241 protruding upward through the upper plate 22 of the shield so that fluid can be injected into the expansion tube 24 of the shield from the outside of the closed hole 1. )Wow; A backflow prevention means, such as a backflow prevention valve 43, which is selectively installed in the inlet 241 or the hose 42 of the expansion tube to prevent the backflow of the fluid injected into the expansion tube 24; It is made of a concrete (6) that is supported by the inner wall of the closed hole (1) on the shield (2) as it is cured after being poured in the upper portion of the shield opening in the closed hole (1) It features.

The shield 2 is formed in the form of a general shielding plate 20 having an outer circumference, such as an inner wall of the closed hole, while the sand 7 inserted into the closed hole 1 and injected into the bottom of the closed hole 1 or the cover of the closed hole. Observation which enables observation of the water quality of the lower part of the closed hole 1 while fixing the rope 5 which hangs and supports the shield 2 by the 12, or the said shield 2 with respect to the said cover 12. It is preferable to be supported by supporting means such as the pipe 3.

The observation pipe 3 and the rope 5 are preferably used together so that they can further enhance the bearing capacity for the shield 2.

On the other hand, the shielding opening 2 is preferably made of a rubber tube expansion tube 24 which can be completely in contact with the inner wall surface of the closed hole is expanded by the injection of air after being inserted into the closed hole (1). In particular, the expansion tube 24 is preferably embedded in the outer diameter of the upper plate and the lower plate in a state in which no fluid is injected so as not to be damaged when inserted into the closed hole 1, and the upper plate (from one side of the outer peripheral surface thereof) 22, the compressed air, the gas or the liquid is injected through the injection hole 241 protruding upwardly to expand.

In addition, the support tube 21 may be further coupled to the stopper 212 to open and close it.

On the other hand, the closed-hole treatment method using a closed-hole treatment device composed of the configuration as described above, the shield consisting of the upper and lower plates 22, 23 and the expansion tube 24 interposed between the upper and lower plates with a clearance. The sphere 2 is connected to and fixed with the rope 5 and the hose 42 to the upper plate 22 and the expansion tube 24, respectively, and then inserted into the closed hole 1, and the top of the rope 5 is A shield opening step of fixing to the outside of the closing hole (1) so that the shielding hole (2) is supported by the rope (5) at a predetermined depth of the closing hole; Inject and fill fluid into the expansion tube 24 through the hose 42 to expand the expansion tube 24 so that the outer circumferential surface of the expansion tube 24 adheres to the inner wall surface of the closed hole 1 so that the expansion tube ( And a shielding fixture fixing step of sealing the lower portion of the closed hole 1 with the shielding hole 2 by fixing the shielding hole 2 in the closed hole 1 by the friction force between the inner wall 24 and the closed hole 1. It features.

In addition, preferably, the method further comprises a concrete curing step of closing the closed hole once again by injecting and curing concrete into the closed hole 1 above the shielding hole 2 after the shielding fixing step.

In addition, in the shield support step, by coupling the observation pipe (3) to the hollow support pipe (21) for coupling the upper and lower plates (22, 23) of the shield (2) with a gap to the hose ( It is more preferable to insert together the 42 and the rope 5 into the closed hole 1, and fix the upper end of the observation pipe 3 to the cover 12 covering and shielding the inlet 1 of the closed hole 1.

According to the groundwater waste hole treatment apparatus and the method according to the present invention configured as described above, by inserting the shield (2) at a predetermined depth position inside the waste hole, the image of the closed hole (1) based on the shield opening (2), Since the lower part can be completely isolated, the surface water contaminated by the shield 2 is blocked and does not flow into the closed hole 1. In addition, when the observation pipe 3 is employed, the groundwater under the shield 2 can be easily confirmed through the observation pipe 3 and the support pipe 21, so that the quality of the groundwater can be accurately measured. When the red hole is redeveloped, if the concrete 6 in the upper portion of the shielding hole 2 is excavated and discharged, the sand 7 in the lower portion of the shielding hole 2 can be easily discharged.

Other features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

Example 1

1 is a closed hole is closed by the groundwater waste hole treatment apparatus according to a first embodiment of the present invention is shown. In this embodiment, a simple flat shielding plate 20 as a shield, a sand 7 deposited on the bottom of a closed hole as a means for supporting the shielding plate 20, and an upper space of the closed hole 1 are put into curing. Using the concrete (6) to be closed hole (1) will be closed.

As shown, reference numeral 1 denotes a closed hole in a state in which a pump and a pump pipe are removed to close the closed hole, and a casing 11 is embedded in an upper portion of the closed hole 1 in contact with the ground surface 81, and the casing 11 is disposed. The top of is blocked by a cover 12. The casing 11 is preferably inserted to the upper end of the soil layer or weathered rock layer. When development of the closed hole 1 fails, it is preferable that the casing 11 is removed, but when it is not easy to remove, you may leave it as it is.

In order to close the closed hole 1 as described above, the groundwater closed hole treatment apparatus according to the first embodiment supports the shielding plate 20, which is a shield for blocking a predetermined position of the closed hole, and the shielding plate 20. It comprises a rope (5) as a support means for.

The shielding plate 20 has an outer circumferential surface (usually circular), such as a cross-sectional shape of the closed hole 1, and blocks the inside of the closed hole 1 up and down based on the shielding plate 20 when inserted into the closed hole 1. Done. The shielding plate 20 inserted in the closed hole 1 is supported by the rope 5 as a supporting means. That is, the eye bolt 221 is fastened to one side of the upper surface of the shielding plate 20 and the rope 5 is fixed at the upper end to the cover 12 covering the inlet of the closed hole 1 exposed on the ground surface 81 and the lower end thereof. By being connected to the eye bolt 221, the shield plate 20 inserted into the closed hole 1 may be supported with respect to the rope 5. The rope 5 may be supported by a structure other than the cover 12.

When the closed hole 1 is to be closed by the apparatus according to the first embodiment, it is preferable to first fill the bottom of the closed hole 1 with sand 7 to the upper end of the rock layer. Next, the shield plate 20 to which the rope 5 is connected is inserted into the closed hole 1 so that the shield plate 20 is placed on top of the sand 7, and then the rope 5 is fixed to the cover 12. do. Subsequently, when the concrete 6 is discharged through the cover 12 while placing the concrete 6 on top of the shielding plate 20 while the concrete injection hose is inserted into the closed hole 1 through the cover 12. After curing to cure. The cured concrete 6 is more firmly supported by the closed hole 1 by being caught by the end portion 1a formed on the inner wall surface of the closed hole 1. On the other hand, when the concrete (6) is poured, when the concrete (6) is completely filled in the closed hole (1) by pressurizing using a pump for injecting concrete, the fine vein 82 of the soil layer or weathered rock layer existing on the shield pipe 20 It is desirable to ensure that the water vein 82, which is a passage through which concrete is injected until the surface is introduced, is reliably shielded. In the case of temporarily closing the hole, it is desirable to lower the height of the concrete in order to be able to easily excavate the concrete when redeveloping the hole.

Example 2

Figure 2 shows an example in which waste holes are closed by the groundwater waste hole treatment apparatus according to a second embodiment of the present invention.

In the groundwater waste hole treatment apparatus according to the second embodiment, a hollow support tube 21 is provided at the center of the shielding plate 20 in the above-described first embodiment, and the support tube 21 has a closed hole exposed to the ground surface ( The lower end of the observation pipe 3 whose upper end is fixed to the cover 12 covering the inlet of 1) is connected and fixed. Although not shown on the inner circumferential surface of the support tube 21, as shown in FIG. 4 showing the third embodiment, the female thread portion 211 is preferably formed, and a stopper 212 is formed on the female thread portion 211. The support tube 21 can be opened and closed by being detachably fastened. Therefore, when the observation pipe 3 is connected to the support tube 21, the stopper 212 is connected to the support tube 21 in a state in which it is separated from the support tube 21. That is, the shielding tube 20 may be inserted into and supported in the closed hole 1 by the observation pipe 3. In the apparatus according to the second embodiment, the shielding plate 20 may be dually supported by the observation pipe 3 and the rope 5.

When the closed hole 1 is to be treated by the apparatus according to the second embodiment, it may be performed in the same manner as described in the first embodiment. On the other hand, when the observation pipe 3 is provided, in order to close the closed hole 1, the sand 7 is first filled in the lower part of the closed hole 1. When the sand 7 is filled, it is preferable to fill the rock layer to the upper end. Next, the observation pipe 3 or the shield 20 connected with the rope 5 together with the observation pipe 3 is inserted into the closed hole 1 so that the shield 20 is placed on top of the sand 7 and then the observation pipe. (3) (Also, when the rope 5 is applied) is fixed to the lid 12 to support the shielding plate 20, and after that, the same method as in Example 1 is performed.

Example 3

3 and 4 illustrate an example in which waste holes are closed by the groundwater waste hole treatment apparatus according to the third embodiment of the present invention.

In the groundwater waste hole treatment apparatus according to the third embodiment, a shield tube 2 having an expansion tube 24 is inserted into the waste hole 1 and supported by a rope 5 so that the shield hole 2 is closed. Is made to prevent.

That is, the shielding tube (2), the support tube 21, the upper and lower plates 22 and 23 to base the gap between the support tube 21 and the coupling, and the support tube 21 circumference The expansion plate 24 is interposed between the upper and lower plates 22 and 23.

The support tube 21 preferably has a structure in which a lower end thereof is enlarged. Therefore, the support tube 21 has, in turn, a lower plate 23 having the largest inner diameter, an expansion tube 24 having an intermediate inner diameter, and a smallest inner diameter. When the upper plate 22 is inserted in turn, these can be inserted and supported around the support tube 21, and the expansion tube 24 can also be protected from being damaged.

In addition, a female screw portion 211 is formed on the inner circumferential surface of the support tube 21, and the support tube 21 may be opened and closed by further fastening a stopper 212 to the female screw portion 211. The support tube 21, the upper plate 22 and the lower plate 23 is made of a corrosion-resistant material for the protection of water quality, but will be described later to a material that can be easily closed when an impact is applied to redevelop the closed air holes. It is preferable to make. In addition, the diameter of the upper plate 22 and the lower plate 23 is preferably made slightly smaller than the diameter of the closed hole (1) to facilitate the insertion of the shield (2).

In addition, the expansion tube 24 is inflated in the radial direction between the upper plate 22 and the lower plate 23 by the injection of compressed air so that the outer circumferential surface is in close contact with the wall surface of the closed hole 1 to close the shielding opening 2. As a reference, the closed hole 1 is blocked up and down. Expansion of the expansion tube (24) of the air compressor 41 (see Fig. 3) installed outside the closed hole 1 inlet 241 protruding upward through the upper plate (1) from one side of the expansion tube (24) It is possible by connecting with the hose 42 and injecting compressed air. In the figure, only the method of injecting compressed air into the expansion tube 24 is shown, but besides, the expansion tube 24 may be expanded by injection of a fluid such as gas or water.

The inlet 241 and the hose 42 of the expansion tube 24 is preferably provided with a non-return valve 43 to prevent the compressed air, gas or other fluid injected into the expansion tube 24 to leak out. Do. As described above, when the compressed air is injected into the expansion tube 24, the air compressor 41 and the hose 42 may be removed, but the hose 42 may be left as it is.

In addition, an eye bolt 221 is fastened to one side of an upper surface of the upper plate 22, and the eye bolt 221 has an upper end fixed to a cover 12 in which an earth surface 81 covers an entrance to a closed hole 1. The lower end of (5) is connected. Therefore, the shielding opening 2 is supported by the rope 5 and injects compressed air into the expansion tube 24 so that the outer circumferential surface of the expansion tube 24 is between the upper plate 22 and the lower plate 23. By expanding through and close to the wall surface of the closed hole 1, the support state of the shielding opening 2 is further improved by this close contact force. Therefore, the shielding hole 2 can secure a predetermined fixed strength only by the frictional force against the inner wall of the closed hole 1 of the expansion tube 24. When the closed hole 1 is temporarily closed, the shielding hole 2 Closed hole (1) can be sealed using only.

When closing the closed hole 1 using the apparatus according to the third embodiment according to the above configuration, as shown in Figures 3 and 4, the shield (2) connected to the rope 5 and the hose 42 Is inserted into a predetermined position of the closed hole (1) and then the rope (5) is fixed to the cover (12). Then, a fluid such as compressed air is injected into the expansion tube 24 through the hose 42, and then the hose 42 is pulled out to remove it. In this way, the closed hole 1 is blocked by close contact with the wall surface of the expansion tube 24. In addition, the shield 2 is supported not only by the rope 5 but also by the adhesive force with the wall surface of the expansion tube 24. This waste hole treatment method is a method of preventing surface water from flowing under the waste hole (1) only by using a shield (2). good.

As a preferred method for treating waste holes using the apparatus according to the third embodiment, a method further comprising the step of curing the concrete 6 by pouring the upper portion of the shield 2 installed as described above may be applied.

In addition, as another method for treating waste holes using the apparatus according to the third embodiment, as shown in FIG. 8, the waste holes 1 are filled with sand 7, and then the shielding holes 2 are supported thereon. In the upper part of the shielding opening 2, the concrete 6 may be poured and cured, and the method of waste air treatment may be employ | adopted. When the sand 7 is filled under the shield 2, the supporting state of the shield 2 can be made more secure.

The above two closed hole treatment methods using the apparatus according to the third embodiment are constructed in a double blocking structure by the concrete 6 as well as the expansion tube 24 of the shield 2, so that the surface water into the closed hole 1 It can be applied when it is necessary to protect the groundwater more reliably since it can be almost completely blocked from entering, as well as the water vein 82 of the soil layer or weathered rock layer is almost blocked by the concrete 6. In addition, the concrete 6 is injected to the upper end position of the rock layer, and the cured concrete 6 is supported by the end portion 1a generated as the diameter of the rock layer portion is smaller than the diameter of the soil layer or weathered rock layer portion, so that the concrete 6 and The phenomenon that the shielding opening 2 is pushed down the closed hole 1 can be prevented.

Example 4

5 to 7 illustrate an example in which waste holes are closed by the groundwater waste hole treatment apparatus according to the fourth embodiment of the present invention.

The apparatus according to the fourth embodiment is the same as that described in the apparatus according to the third embodiment, except that the lower end of the observation pipe 3 is connected to the support tube 21 from which the stopper 212 is removed. It is the same as the structure and operation of Example 3. In addition, it is preferable that the observation pipe 3 also be made of a material that can be easily broken when an impact is applied, similarly to the components of the shield 2.

In the method for closing the closed hole 1 by the apparatus according to the fourth embodiment, the shielding hole 2 to which the rope 5, the hose 42, and the observation pipe 3 are connected is disposed at a predetermined position of the closed hole 1. After inserting into the rope (5) and observation pipe (3) to the cover 12, a method of pouring concrete (6) to the upper portion of the shield (2), as shown in Figure 9, A method of filling sand under the shield 2 may be employed.

When the closed hole 1 is closed by another apparatus according to the fourth embodiment, the inside of the closed hole 1 below the shielding opening 2 is closed through the center through portion of the observation pipe 3 and the support tube 21. Since it is in a state of communicating with the outside, the water quality can be easily grasped by easily observing the inside of the closed hole 1 below the shield 2 through the observation pipe 3, for example through an endoscope. In addition, the groundwater can also be easily collected through the observation pipe 3, so that the quality of the groundwater can be more accurately understood. In addition, the support state of the shielding opening 2 is further improved by the observation pipe 3.

Reference numeral 81 denotes the ground surface and 82 denotes the water vein.

According to the groundwater waste hole treatment apparatus and the method according to the present invention configured as described above, since the shield opening (2) is inserted into a predetermined depth position inside the waste hole (1) the closed hole (1) is based on the shield opening (2) Can be completely isolated up and down. When concrete 6 is poured and cured on top of the shield 2, the contaminated surface water is blocked by the concrete 6 as well as the shield 2 and closed holes 1 below the shield 2. ) It is not introduced into the inside, and the concrete liquid is blocked by the shielding port 2 during the concrete 6 pouring so that it does not flow into the lower shield 2. In addition, since the water vein 82 existing in the soil layer or the weathered rock layer is blocked by the concrete 6, the inflow prevention effect of the surface water is increased. When the observation pipe 3 is applied, not only the inside of the closed hole 1 can be easily confirmed through the observation pipe 3 but also the groundwater can be collected. In addition, when it is necessary to redevelop the waste holes treated by the groundwater waste hole treatment apparatus and the waste hole treatment method 1 according to the present invention, the waste holes 1 are disposed by the shielding holes 2 without the concrete 6. If it is, only the shield 2 can be damaged by applying a shock, so the work can be done very easily. If the observation pipe 3 is closed by the concrete 6 as well as the shield 2, the shield 2 And damaging the observation pipe 3 and then digging the concrete 6 through the hole in which the observation pipe 3 is installed, thereby easily crushing and discharging the cured and dried concrete 6. In addition, when the sand 7 is filled in the lower portion of the shielding opening 2, the sand 7 may be easily discharged to the outside of the waste hole 1 through a ground water cleaning process called so-called surging method.

Groundwater waste hole treatment apparatus and the method according to the present invention configured as described above are as follows.

First, since the closed hole (1) is simply closed hole treatment (closed) by inserting the shield (2), the closed hole work is easily made, and when the concrete (6) is poured and cured on top of the shield (2), the closed hole (1). Since the upper part of the structure is double-blocked, the contaminated surface water is hardly introduced under the shield 2, so the effect of protecting the groundwater from being contaminated is much increased.

Second, in the process of pouring the concrete (6) is that the concrete flows into the bottom of the closed hole (1) is blocked by the shield (2) is not introduced into the closed hole (1) below the shield (2) of the ground water In addition to increasing the antifouling effect, the upper vein of the shield 2 is also blocked by the concrete 6, thereby further increasing the antifouling effect of the groundwater.

Third, when the observation pipe (3) is applied, it is possible to easily check the water quality of the groundwater and the water quality inspection through the observation pipe (3), so that it is easy to maintain the waste hole and redevelop the waste hole. You can also see easily.

Fourth, the temporary coverage of the closed holes is also possible by using only the shielding openings (2), so that the application range of the closed holes is expanded, and in this case, only the shielding openings (2) need to be removed. It becomes easy.

Fifth, when it is necessary to redevelop the closed hole, the impact pipe is damaged by the observation pipe 3 and the shielding hole 2, and the concrete 6 is excavated through the hole where the observation pipe 3 is installed. Since it can be easily crushed and discharged, and only to the upper portion of the shielding opening 2, redevelopment of the closed holes is very easy and the redevelopment cost of the closed holes can be reduced.

Sixth, in the case of redeveloping the closed holes, only the concrete 6 in the upper portion of the shielding opening 2 may be fixed and discharged. In addition, when the sand 7 is filled in the lower portion of the shielding opening, the sand may be filled by the surging method. Since (7) can be easily discharged out of the closed hole, the closed hole can be redeveloped to maintain the diameter and depth of the first closed hole.

Claims (14)

It includes an expansion tube (24) interposed with an injection hole between the upper and lower plates (22) and (23) and the upper and lower plates (22) and (23) that are coupled to each other with upper and lower clearances. A shielding port (2) inserted into the depth of the shielding hole and shielding the lower space of the waste hole (1) by expanding the inflating tube (24) in close contact with the inner wall of the waste hole according to the fluid filling through the injection hole; Support means for supporting the shield at a position inserted into the closed hole; A fluid injection hose 42 connected to the inlet of the shield expansion tube 24 to fill the expansion tube 24 of the shield from the outside of the closed hole 1; Groundwater waste ball treatment apparatus comprising a backflow prevention means that is selectively installed in the inlet or the hose of the expansion tube (24) to prevent the backflow of the fluid filled in the expansion tube (24). The method of claim 1, The support means, Groundwater waste hole treatment apparatus, characterized in that the rope (5) end is fixed to the shield (2) to support the shield (2) outside the closed hole. The method of claim 1, The support means, Groundwater waste ball treatment apparatus, characterized in that the sand (7) is put in the waste hole (1) prior to the shielding hole (2) deposited on the lower portion of the waste hole. The method of claim 1, The support means, A cover 12 covering the inlet of the closed hole 1 to seal an inner space of the closed hole; It is fixed to the cover 12 and the lower end is screwed to the support tube 21 for coupling the upper and lower plates 23, to support the shield 2 against the cover 12, at the same time the shield Observation pipe (3) for communicating a closed space below the sphere (2) to the ground surface (81) through the support pipe (21) Groundwater waste hole treatment apparatus comprising a. The method according to any one of claims 2 to 3, A cover 12 covering the inlet of the closed hole 1 to seal an inner space of the closed hole; It is fixed to the cover 12 and the lower end is screwed to the support tube 21 for coupling the upper and lower plates 23, to support the shield 2 against the cover 12, at the same time the shield Observation pipe (3) for communicating a closed space below the sphere (2) to the ground surface (81) through the support pipe (21) Groundwater waste ball treatment apparatus further comprises a. The method according to any one of claims 1 to 4, After the shielding opening 2 is inserted into the closing hole 1, it is poured over the shielding opening 2 supported by the supporting means, and then cured to close the closing hole 1 with the shielding in a double weight. Concrete Groundwater waste ball treatment apparatus further comprises a. The method of claim 5, After the shielding opening 2 is inserted into the closing hole 1, it is poured over the shielding opening 2 supported by the supporting means, and then cured to close the closing hole 1 with the shielding in a double weight. Concrete Groundwater waste ball treatment apparatus further comprises a. The method according to any one of claims 1 to 4, The backflow prevention means, Groundwater waste hole treatment apparatus, characterized in that the non-return valve is selectively installed in the inlet 241 of the hose 42 or the shield. A shield 2 consisting of upper and lower plates 22 and 23 coupled to each other with a clearance and an expansion tube 24 interposed between the upper and lower plates is attached to the upper plate 22 and the expansion tube 24. After connecting and fixing the ropes 5 and the hoses 42, respectively, the ropes 5 and the hoses 42 are inserted into the closed holes 1, and the upper ends of the ropes 5 are fixed to the outside of the closed holes 1 so that the shielding holes 2 are fixed to the closed holes. A shield support step of being supported by the rope (5) at a depth of; Inject and fill fluid into the expansion tube 24 through the hose 42 to expand the expansion tube 24 so that the outer circumferential surface of the expansion tube 24 adheres to the inner wall surface of the closed hole 1 so that the expansion tube ( 24) and the groundwater closed hole treatment method comprising the step of fixing the shielding hole to seal the lower portion of the closed hole (1) by fixing the shielding opening (2) in the closed hole (1) by the friction force between the inner wall (1) . The method of claim 9, In the shield support step, the hose 42 by coupling the observation pipe (3) to the hollow support pipe 21 for coupling the upper and lower plates (22, 23) of the shield (2) with a gap. And inserting into the closed hole (1) together with the rope (5), and fixing the upper end of the observation pipe (3) to the cover (12) covering and shielding the inlet of the closed hole (1). The method according to claim 9 or 10, After the shielding fixing step, by placing concrete in the upper portion of the shielding hole in the closed hole, the concrete water placing step further comprises a concrete pouring step of further sealing the closed hole (1) to the concrete portion (6) Waste hole treatment device. A sand input step of depositing and depositing sand (7) in the lower portion of the closed hole (1); The hose 2 is connected to the expansion tube 24 by a shielding opening 2 formed of the upper and lower plates 22 and 23 coupled to each other with a clearance and the expansion tube 24 disposed between the upper and lower plates. A shield support step of inserting the closed hole (1) so that the shield (2) is supported on the sand (7) deposited in the sand injection step; By injecting a fluid through the hose 42 to expand the expansion tube 24, the outer circumferential surface of the expansion tube 24 is in close contact with and fixed to the inner wall surface of the closed hole (1) to the lower portion of the closed hole (1) Groundwater waste hole treatment method comprising the step of fixing the shield closure. The method of claim 12, After the shielding fixing step, by pouring the concrete in the closed hole curing the ground water further comprises a concrete pouring step of further sealing the closed hole (1) closed by the shield (2) with concrete (6) Waste hole treatment method. A shielding opening (2) consisting of upper and lower plates (22) and (23) joined with a gap by a hollow support tube (21) and an expansion tube (24) interposed between the upper and lower plates, and the support tube (21). ) And the observation pipe 3 and the hose 42 are respectively connected to the expansion tube 24 and inserted into the closed hole 1, and the upper end of the observation pipe 3 is supported from the outside of the closed hole 1. A shield support step of causing the shield hole 2 to be supported by the observation pipe 3 at a predetermined depth of the closed hole; By injecting fluid through the hose 42 to expand the expansion tube 24, the shielding opening 2 is fixed in close contact with the inner wall surface of the closed hole 1 on the outer circumferential surface of the expansion tube 24 so that the closed hole ( Groundwater waste hole treatment method comprising the step of fixing the shield to seal the lower part of 1).

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