KR20120074489A - Groundwater deep well shielding device and method - Google Patents

Groundwater deep well shielding device and method Download PDF

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Publication number
KR20120074489A
KR20120074489A KR1020100136344A KR20100136344A KR20120074489A KR 20120074489 A KR20120074489 A KR 20120074489A KR 1020100136344 A KR1020100136344 A KR 1020100136344A KR 20100136344 A KR20100136344 A KR 20100136344A KR 20120074489 A KR20120074489 A KR 20120074489A
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KR
South Korea
Prior art keywords
shielding
groundwater
shielding material
injection hole
grouting
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KR1020100136344A
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Korean (ko)
Inventor
조희남
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주식회사 지앤지테크놀러지
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Priority to KR1020100136344A priority Critical patent/KR20120074489A/en
Publication of KR20120074489A publication Critical patent/KR20120074489A/en

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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/127—Packers; Plugs with inflatable sleeve
    • E21B33/1277—Packers; Plugs with inflatable sleeve characterised by the construction or fixation of the sleeve
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
    • E21B33/138—Plastering the borehole wall; Injecting into the formation

Abstract

The present invention relates to a groundwater heart well shielding device and a method for preventing groundwater inflow of the upper groundwater well or conducting a pumping test investigation for each groundwater depth tool and grouting shielding.
More specifically, the balance casing or grouting injection hole and shielding injection hole are perforated using a fabric mill in the inner casing inserted into the groundwater core well, and then the shielding filler and the barrier material injection device are installed to install the gap between the inner casing and the groundwater well wall. The shielding material and the grouting material are injected into and hardened to shield the inner casing and the groundwater core wall, thereby forming a lower surface protection wall. The upper part of the shielding material is injected through the grouting material injection hole to fix the shielding, and then a preliminary packer is installed to allow the pumping test, and the grouting material is filled into the upper part of the hardening material for curing and curing. It is to complete the order protection wall for the lower protective wall.
[Index]
Shielding agent injector, shielding agent indentation device, shielding material, balance hole, spare packer

Description

Groundwater deep well shielding device and method

The present invention relates to a groundwater heart well shielding device and method for preventing groundwater inflow of the upper groundwater well or conducting a pumping test investigation for each groundwater core tool and grouting shielding.

More specifically, the balance casing, grouting injection hole, and shield injection hole are perforated using a fabric mill in the inner casing installed inside the groundwater core well, and then the shielding filler and the barrier material injection device are installed to install the gap between the inner casing and the groundwater well cape wall. The shielding material and the grouting material are injected into and hardened to shield the inner casing and the groundwater core wall, thereby forming a lower surface protection wall. The fastening material is fixed through the grouting material injection hole at the top of the shielding material, and then the pre-packer is installed to allow the pumping test, and the hardening material is cured by filling the grouting material on top of the fastening material. It is to be able to complete the lower protection wall order wall.

In this way, the internal casing, which was essential in the process of water quality recovery for the existing groundwater core, was removed by removing the internal casing to the outside, and a preliminary packer was installed to eliminate the inconvenience of carrying out the pumping test and groundwater without removing the internal casing. Groundwater heart well shielding device and method that secured technology to make groundwater heart well facility improvement more easily and efficiently by allowing pumping test of heart well and pollution water barrier wall facility additionally. .

Groundwater refers to water that fills or fills the gap between underground strata and rocks.In modern times, as the industrialization progresses, environmental pollution intensifies and soil pollution becomes severe. Groundwater formed through permeation is also increasing in pollution rate day by day. The strata are generally composed of soil layers composed of general soil and sand, weathered rock layers with a high permeability of groundwater, and soft rocks, ordinary rocks, and hard rocks. The rock aquifer groundwater formed in the sub-layer of soft rock is not affected by the contaminated groundwater from the soil layer or weathered rock layer in the upper strata, thus maintaining a clear and clean water quality.

However, the soil layer and weathered rock layer may be able to perform some filtration function from various contaminants flowing from the surface of the earth. However, if the time for natural purification is short during the permeation, and the soil layer or weathered rock layer is contaminated, groundwater flowing through this space will also be contaminated. The situation arises. Naturally, in the groundwater development process, the soil layer and the weathered rock layer are perforated, and the perforated sections are formed through the soft rock layer, the common rock, and the hard rock layer. As a result, groundwater that is vulnerable or contaminated is contaminated with uncontaminated rock aquifers without any resistance or filtration, and has been a major factor in rock aquifer groundwater contamination.

Therefore, how to protect the groundwater in the rock aquifer from the contaminated upper groundwater and block the inflow during the groundwater development process is the main purpose and research project so far.

Moreover, in recent years, interest in clean drinking water has increased due to the increase in income level and the increase in outdoor leisure and travel, and the absolute amount of the requirement is supplied through rock groundwater.

On the other hand, the groundwater pollution problem is becoming an important social problem due to accidents caused by various groundwater pollution such as AI and norovirus. Therefore, the severity of social repercussion and the increase of groundwater pollution rate are necessary for the development of groundwater pollution prevention technology. It is not only the fact that it is becoming a factor to have a stronger and more research on the device and method for developing uncontaminated groundwater, but also the plan or legislative application of this facility to the groundwater pollution prevention device during the groundwater development process. It is expected to arrive until the time when it must be forced through

The problem is that, for newly developed groundwater, measures to improve the water quality of groundwater wells already contaminated with water are just as important as the necessary measures for the conservation of groundwater due to these pollutants. Of course, it was a general measure for the underground water core contaminated with water quality to be buried. However, the application of patent No. 10-0299417 (Invention: Groundwater Drilling Equipment and Water Collection Method), which was invented by the present inventors, is performed as a general process in the field. In this process, the majority of the groundwater of the contaminated water quality is confirmed to be caused by the confluence of the upper contaminated groundwater into the rock groundwater, which is caused by the undersurface protection wall configured to prevent the inflow of the upper contaminated groundwater. It has been found to be due to poor construction or old age.

However, in the case of the existing groundwater wells, all internal casings inserted inside the groundwater wells must be removed and removed, and after the groundwater wells are formed into hollows, the lower water barrier casing is reinserted to reconstruct the water barrier or improve the facility. In addition to the complexity of the work due to the ability to carry out the subsequent process, in many cases, when the inner casing is broken or the drawing itself becomes impossible in the process of removing the inner casing, the water quality recovery work itself has to be abandoned. Therefore, there is a need for a technology capable of constructing a subsurface lower protective wall while eliminating this inconvenience and easily installing a preliminary packer to enable a pumping test.

20-2006-0012687 (utility model registration name: groundwater feeling packer) 10-1998-0033636 (Patent name: Water collection device and water collection method by underground water depth tool) 10-2007-0111415 (Patent name: Internal casing cutting device for water collection by groundwater core tool and groundwater deepwater tool method using it) 10-1998-0033646 (Patent Name: Groundwater Gutter Grouting Pipe Apparatus and Grouting Method)

The present invention is to solve the above problems,

Through the invention patent registration No. 10-0460127 (patent registered name: hole perforation and freeze shielding film forming device for grouting injection), perforation is performed to penetrate the inner casing inner wall installed inside the groundwater core well to reach the groundwater core well wall. Has developed a fabrication plant that can be used to clean the groundwater by cutting the inner casing in Patent No. 10-2007-0111415 (Patent name: Internal casing cutting device for the collection of groundwater core tools) We have developed a technology that can secure a certain section of empty walls in the hollow state.

Formed by processing the balance hole, grouting material injection hole and shielding material injection hole by using the punching device or cutting device thus secured, and discharges the shielding upper packer and lower packer respectively on the upper and lower sides of the shielding material injector with the pressure cylinder. The inner casing can be removed by providing a shielding device and a method of forcing the shielding material filled in the shielding material injector to be filled between the inner casing and the groundwater core wall through the shielding material discharge pipe by using the shielding press-injector. It is an object of the present invention to recover the function of the existing lower surface protection wall order wall even in the absence of state or failure, as well as to install a preliminary packer to enable a pumping test for each section.

In particular, the balance hole is formed at the bottom of the natural water level so that the groundwater can naturally move between the inner casing and the groundwater core wall even after being shielded by the shielding material so that the groundwater level in the two spaces can be kept the same. It is an object of the present invention to ensure a technology that the ointment shielding material does not lose the shielding function in accordance with the pressure formed by the pressure.

In the present invention, the groundwater heart well shielding device invented to prevent the groundwater inflow of the upper layer of groundwater heart wells or to conduct a pumping test investigation for each groundwater core tool and grouting shielding,

Groundwater excavation excavated to extract rock groundwater;

An internal casing inserted into the groundwater well;

A balance hole or grouting injection hole formed through the inner casing at the lower end of the natural water level using a punching device or a cutting device;

A shielding material injection hole formed through the inner casing of the shielding section by using a punching device or a cutting device;

A shielding material injecting device configured to pressurize and supply the shielding material to the shielding material injector;

A shielding material injector connected to the shielding material injection device and installed to inject the shielding material into the shielding material injection hole;

A shielding material injected by the shielding material injector and shielding between the inner casing and the groundwater well cavity wall;

From the top of the shielding material through the balance hole or grouting material injection hole using a shielding material injection device and a shielding material injector is characterized by consisting of the ordered wall filled with the grouting material between the inner casing and the groundwater well hole wall.

Moreover, in the method of irradiating pumping test using the apparatus of this invention,

Drilling a balance hole or grouting material injection hole and a shielding material injection hole in the inner casing by using a drilling device or a cutting device;

A shielding filler injector is positioned in the shielding filler injection hole, and a large amount of shielding material is injected between the inner casing and the groundwater well hole by using a shielding filler injector to form a shielding secondary wall;

Forming a fast rigid order wall for injecting the hard hard grouting material through the balance hole or the grouting material injection hole to cure the hard hard material;

Installing a prepacker inside the inner casing;

The submersible motor pump was characterized in that it consists of a process for the pumping test.

In addition, in the method of performing grouting by shielding between the inner casing and the groundwater well wall using the apparatus of the present invention,

Drilling a balance hole or grouting material injection hole and a shielding material injection hole in the inner casing by using a drilling device or a cutting device;

Installing the shielding material injector to be located in the shielding material injection hole and injecting the shielding material between the large amount of the inner casing and the groundwater well hole by using the shielding material injection device to form a shielding water repellent wall;

Injecting a hard grouting material through a balance hole or a grouting material injection hole to form a fast hardening wall;

Injecting a general grouting material through a balance hole or grouting material injection hole to form a grouting order wall;

It was characterized in that the process was made to install the pumping facilities in the inner casing of the groundwater core well to enable pumping.

According to the groundwater heart shield and the method,

In the case of the existing groundwater wells, the inner casing inserted inside the groundwater wells must be drawn out and removed, and after the groundwater wells were formed into perforations, a preliminary packer could be installed to conduct the pumping test by depth of the groundwater wells. In addition to grouting casing and packer installation to block the inflow of contaminated groundwater, there have been many cases in which the water quality recovery work itself has to be abandoned when the internal casing is broken or the drawing itself becomes impossible during the removal of the internal casing draw.

As an effect according to the present invention

By processing the balance hole and the shield injection hole only without drawing and removing the inner casing inserted inside the groundwater well, it is possible to construct a barrier wall for shielding and the lower surface protection wall as well as a pre-packer in the initial shielding state. The pumping test was used to separate the upper water quality and the amniotic fluid volume, the lower water quality and the amniotic fluid volume by the boundary of the section covered by the shielding material.

In addition, the shielding material uses an ointment gel-type material due to its working characteristics, so when the shielding is completely shielded between the inner casing and the groundwater core wall, the water level between the inner casing of the upper portion of the shielding section and the inner casing and the groundwater core wall. As a result of this difference, the shielding material is pushed out of the fixed position and then detached, and the balance hole is processed to solve the problem of losing the shielding function. Even with this weak shielding material, the shielding function can be efficiently secured.

1 is a cross-sectional view of the groundwater core well according to the present invention.
Figure 2 is a cross-sectional view of the groundwater heart shield device installed in Example 1 according to the present invention
Figure 3 is a cross-sectional view of an embodiment using the shield member cylinder of the present invention as a shield material injection device.
Figure 4 is a cross-sectional view of the pumping test using a pre-packer after shielding according to the present invention.
5 is a cross-sectional view showing a state injecting the shielding or grouting material of Example 2 according to the present invention.
Figure 6 is a cross-sectional view of the shielding material injector of Example 2 according to the present invention.
7 is a cross-sectional view of a support cylinder having an opening according to the present invention composed of a shielding injection hole;
[Description of the major symbols in the drawings]
1: groundwater core 2: submersible motor pump 10: groundwater 11: upper shielding packer
12: lower shielding packer 14: shielding discharge pipe 21: balance hole 22: grouting injection hole
23: shielding injection hole 26: pressurizing device 27: pressurized hose 30: shielding cylinder 32: piston
33: shielding material 37: upper pollution groundwater 38: rock groundwater 41: shielding barrier wall
42: fast-hard order wall 43: grouting back wall 44: pressure injector 47: pressure cylinder
50a, 50b: Shield injection material 53: Fixing bolt 60a, 60b: Shield injection material

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

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

1 is a cross-sectional view of a groundwater well, which is generally installed for intake and use of groundwater 10. Underground water well excavated below the surface of the ground (1) is inserted into the inner casing (3) consisting of oil pipes and non-pipes inside the core water submersible motor pump (2) is connected to the pump pipe (5) installed therein. . Pumping pipe (5) is supplied to the place of use via the flow meter (8) and the shut-off valve (9) in the ground portion. Submersible motor pump is powered by the power cable (6) through the controller (7) is made to operate. In order to prevent the water pollution phenomenon of the groundwater 10 caused by the inflow of the upper groundwater 37, the lower surface protection wall 4 is installed on the soft rock layer of the groundwater core 1.

The inner casing (3) is typically installed to protect the pumping facilities, such as submersible motor pump (2) and pumping pipe (5) from the depression of the empty wall 40 of the groundwater core well (1) rock groundwater (38) Is inserted into the deep hole (18) formed in the opening portion 20 so that the rock groundwater 38 can be introduced into the inner casing (3) and the upper layer is composed of a non-perforated tube (19) have. When the underground water well (1) having such a facility is introduced into the groundwater well (1) due to the aging or failure of the water barrier wall composed of the lower surface protective wall (4), the groundwater (10) It gets worse.

In this case, conventional internal casing (3) has been removed by removing all, and then the facility improvement has been carried out while the empty wall is exposed. Inner casing (3) In order to remove inconvenience and inefficiency caused by drawing process, shielding is carried out while the inner casing (3) remains intact, and a preliminary packer is installed to carry out a pumping test. It is the main technical content of the present invention that the water quality can be improved by allowing the facility to be installed.

As described above, the drilling device developed by Patent Registration No. 10-0460127 (patent registration name: hole perforation and freeze shielding film forming device for grouting injection) or Patent No. 10-2007-0111415 (patent name: groundwater core tool) Through the inner casing cutting device for the water harvesting and the grounding method according to the groundwater core tool using the same), the inner casing (3) is perforated the balance hole 21, grouting injection hole 22, shielding injection hole 23, respectively . The holes thus drilled through the inner casing 3 are connected to the empty wall 40 of the groundwater core 1 and the inner casing 3 space, and the groundwater 10 can flow without clogging each other.

When the cutting device is used, it is possible to process the groove-shaped opening grooves with a constant width in the horizontal direction and the vertical direction, respectively, as well as to process the entire inner casing 3 in the circumferential direction. In the present invention, the opening groove of this type, which is processed by the cutting device, is also referred to collectively as a punching hole and the cutting device is also included in the drilling device. Therefore, the balance hole 21 or the grouting material injection hole 22 and the shielding material injection The holes 23 are all circular or have a cutting opening shape having a predetermined width. Of course, if necessary, the inner casing 30 may be cut, and then the support cylinder 55 having the perforated opening 56 may be inserted into the inner circumferential surface of the inner casing 3 to have the same function as the shielding injection hole 23. would.

Here, the balance hole 21 serves to maintain the same water level between the inside and outside of the inner casing 3 and may be formed of one or more, and may be configured to increase the quantity while varying the depth. . The balance hole 21 is also used as a grouting material injection hole 22 for injecting grouting material after shielding between the inner casing 3 and the vacant wall 40 of the groundwater core well 1 with the shield reordering wall 41. Naturally, the grouting injection hole 22 may also be included in the range of the balance hole 21 and may be used without any difference in function.

When both the balance hole 21 or the grouting injection hole 22 and the shield injection hole 23 are completed, the shield injection injectors 60a and 60b are installed inside the inner casing 3, and the shield injection material It is connected to 50a and 50b and installed.

Example 1

As shown in FIG. 2, the shielding material injector 60a includes an upper pack 11 and a lower pack 12 having a shielding discharge tube 14 having an outlet 13 interposed therebetween, and a shielding cylinder 30 at the upper end thereof. Is installed connected. The outer periphery of the upper pack 11 and the lower pack 12 is provided with an expansion tube 16 which expands according to the injection of compressed fluid, respectively. The shielding material injection pipe 17 is connected to the upper end of the shielding material discharge pipe 14 and the shielding material 33 is supplied. In the expansion of the expansion tube 16, a nitrogen gas filled in a high pressure gas container (not shown), or compressed water supplied by a hydraulic pump (not shown) is used.

Installing the underwater camera 15 on the side of the shielding discharge pipe 14 and checking the monitor 25 installed on the ground through the camera cable 24 so that the shielding discharge pipe 14 is correctly positioned in the shielding injection hole 23. Work to make it work. When the setting position is determined, when the compressed fluid is injected into the expansion tube 16 of the upper pack 11 and the lower pack 12, the shielding material injector 60a and the shielding material indentation device 50a are provided inside the inner casing 3. It will be fixed.

Shielding material indentation device (50a) is made of a shielding material cylinder 30, the piston 32 is embedded therein and the ointment shielding material 33 is filled. In order to advance the piston 32, it was possible to supply a high pressure compressed fluid from the pressurizing device 26 through the pressurizing hose 27. The pressurization device may be used in various forms and sizes of pressure, such as hydraulic pressure, hydraulic pressure, compressed gas pressure, and may also configure the shielding cylinder 30 to utilize the lowering and the rising as well as the lowering.

The shielding material cylinder 30 connects the pull string 29 to the connecting ring 36 so that it can be installed and lifted by a crane 28 or a winch (not shown) from the ground, and also by an extension pipe (not shown). Of course, installation, lifting and height adjustment are possible.

When the shielding material 33 needs to be filled in a dissolved state by maintaining a predetermined temperature or more through heat supply, such as molten agar or melted synthetic resin pool, it is possible to supply power to the electric heater 34 through the heater cable 35. And the outside was covered with a heat insulating material (31) so that the cooling is not made easily.

The shielding material 33 is filled into the shielding material cylinder 30 in a kneaded state that is kneaded as kneaded cement or mud, bentonite, cement and bentonite mixed dough, that is, not well released in the groundwater 10 water. Shielding material cylinder 30 is to install a cover (not shown) that can be assembled using a bolt and nut on the top to facilitate the filling of the kneaded shielding material (33).

On the other hand, the shielding material 33 may use agar dissolved by heating in a state immersed in water, or may use a synthetic resin pool used for labeling or the like normally dissolved when heated. In the case of agar heated and melted with water, coagulation occurs at about 25 degrees Celsius, and the synthetic resin pool is also solidified at room temperature when cooled in a heated state, and thus, the inner casing (3) and the hollow wall through the shielding discharge pipe (14). While filling between the 40 and at the same time around 17 degrees Celsius of the groundwater 10 is cooled due to the solidification proceeds to effectively complete the shield reorder wall 41.

In addition, even if the shielding material 33 is kneaded mud, cement, bentonite, etc., a high-pressure compressed fluid is produced by the pressurizing device 26 and the piston 32 inside the shielding material cylinder 30 through the pressurizing hose 27. The piston 32 is applied to the upper portion and is discharged through the shielding material discharge pipe 14 in a large amount at the time of the lowered and kneaded ointment shielding material 33 through the shielding injection hole 23 through the inner casing 3 and the empty wall ( 40) is filled in to complete the shield reorder wall (41).

At this time, the shield reorder wall 41 is generally stiffness, so that even if the differential pressure is formed due to a slight level difference, leakage or malfunction of the shield reorder wall 41 may occur, thereby injecting the balance hole 21 or grouting material. The water level difference was not caused by the holes 22.

Thereafter, the injection hole 48 is inserted into the balance hole 21 or the grouting material injection hole 22 using the shielding material injector 60b, and then the fastening material such as fast cement or epoxy material is applied to the shielding material injection device 50b. By using the injection hose 51 may be filled between the inner casing (3) and the cavity wall 40 to form a fast rigid order wall 42.

In this way, when the fast rigid ordered wall 42 is completed, a prepacker 62 is installed inside the fast rigid ordered wall 42 section of the inner casing 3 to expand and expand the expanded rubber tube 61 as shown in FIG. 4. Then, when the submersible motor pump 2 is operated, the amount of water and the water quality of the rock groundwater 38 flowing from the lower side of the fast hard water order wall 42 can be examined.

Regarding the structure and function of the preliminary packer 62, Patent No. 10-1998-0033636 (Patent Name: Water collection device and collection method for each groundwater depth tool) and Patent No. 10-2007-0111415 (Patent name: Internal casing cutting device for the collection of each groundwater core tool and the method of collecting the groundwater core tool using the same) has been described in detail. As a result of the investigation, if the amount of pumping of the groundwater 10 is small and it is decided to use a water treatment device (not shown), and even the amount of the original upper groundwater groundwater 37 is required, the balance hole already processed by the drilling device ( 21) Alternatively, the ground water 10 may be introduced into the pumping amount and the water quality before the irradiation by maintaining the grouting injection hole 22 as it is or increasing the amount thereof.

In addition, when the pumping test results after the installation of the preliminary packer 62, if the pumping amount and the water quality is suitable, the grouting material through the balance hole 21 or the grouting material injection hole 22 in the same manner as the fast hard water order wall 42 was performed. Injection filling is performed to form the grouting order wall 43 up to the ground level. In this process, when the grouting injection hole 22 or the balance hole 21 is higher than the grouting injection hole 22 and the grouting material injected through these holes may leak, Balance tube 21 or grouting injection hole inside the inner casing (3) using a shielding packer (not shown) that expands according to the injection of compressed air by installing an expansion tube at the outer periphery of the casing. 22) After filling and curing by injecting grouting material in the shielded state, shrink the expansion tube of the tea packer and remove it to the outside.

As a result, the lower surface protection wall 4 blocking the inflow of the upper pollution ground water 37 is completed by the fast hardening order wall 42 made of fast hard material and the grouting order wall 43 made of general cement.

[Example 2]

FIG. 5 illustrates a case in which the shielding material 33 or the grouting material is injected using the shielding agent injector 60b and the shielding material injection device 50b.

The shielding agent injector 60b is connected to the shielding material injection device 50b installed on the ground and an injection hose 51 for injecting the shielding agent 33 or grouting material, and an injection hole 48 is attached to the tip portion thereof, and an injection hole 48 is provided. On the outer periphery of the zero ring packing 52 installed to be in close contact with the inner circumferential surface of the inner casing 3 so as not to leak the shield 33 or grouting material, and the shield 33 or grouting material injected by the injection hose 51. It is composed of an injection angle 49 of the structure that can be modified to give an injection angle of 90 degrees.

On the rear of the injection angle 49, a compression cylinder 47 of a general type in which the forward piston 45 is operated by a compression fluid such as hydraulic pressure or air pressure is integrally attached. The operation of the forward piston 45 is connected to a pressurized tube. By supplying the high pressure compressed fluid formed in the pressure injector 44 to (46). Of course, when the compressed fluid is injected through the pressure tube 46 instead of the pressure cylinder 47, it is natural that an expansion tube (not shown) may be used, which should also be included in the construction technology of the shielding injector 60b. something to do.

Meanwhile, between the injection angle 49 and the inner circumferential surface of the inner casing 3, the forward piston 45 of the pressure cylinder 47 is contracted while the injection hole 48 is inserted into the shielding material injection hole 23 and finished. In this case, the injection hole 48 may be operated by installing a compression spring (not shown) so that the injection hole 48 can be easily discharged from the shielding material injection hole 23. A separate discharge cylinder may be installed on the opposing surface of the pressure cylinder 47 to operate. It may be.

Installing the underwater camera 15 at the top of the injection angle 49 and checking the image transmitted through the camera cable 24 with the monitor 25 installed on the ground while the injection hole 48 is exactly in the shielding injection hole 23 Work so that it can be inserted.

In the second embodiment, the shielding agent 33 for forming the shielding reordering wall 41 may have a material different depending on the performance of the shielding agent injecting device 50b and the diameter and quantity of the injection hose 51. As well as general cement, two-component epoxy or urethane series divided into main and hardeners that can be formulated and operated to control the curing time and hardness after injection, or agar or synthetic resin pool melted at high temperature as in Example 1 Can be used.

In addition, the method of forming the fast rigid ordered wall 42 or the grouting ordered wall 43 is also the same as the method of forming the shielded ordered order wall 41, and when the primary shielded ordered ordered wall 41 is completed, the balance hole 21 or the grouting material is completed. Injecting hose (22) in the injection hole 22 is installed by inserting the injection hole 48 of the injection angle (49) in the state of fast-hardening material such as fast cement using the shielding material injection device (50b) Filling between the inner casing (3) and the vacant wall 40 through the (51) to form a fast rigid order wall 42 and proceeds the injection operation sequentially.

In addition, the method of performing the pumping test using the preliminary packer 62 after the fast hard water order wall 42 is completed is similarly carried out as in Example 1.

On the other hand, while forming the shielding order wall 41, after applying the technique of Example 1, in the process after the fast rigid order wall 42, it is natural that the technique of Example 2 may be applied or the two embodiments may be used in combination. something to do.

In addition, in the case where the fast hard order wall 42 or the grouting order wall 43 is formed by applying the second embodiment, the shielding material press-fitting device 50b is usually used to forcibly inject the fast cement solution or the general cement solution. It is also natural to use a grouting pump (not shown) for cement injection.

In addition, when performing the mixing of Example 1, Example 2, or these examples, the process of implementing the water-repelling wall is completed, and curing is sufficiently performed. It may be.

On the other hand, the present invention may be variously modified and may take various forms in applying the above configuration.

And, it is to be understood that the invention is not limited to the specific forms referred to in the above description, but rather includes all modifications, equivalents, and substitutions within the spirit and scope of the invention as defined by the appended claims. It should be understood as

Claims (16)

In the groundwater deep well shielding device to prevent the groundwater inflow of the upper groundwater wells or to carry out a pumping test investigation for each groundwater core tool,
Groundwater excavation excavated to extract rock groundwater;
An internal casing inserted into the groundwater well;
A balance hole or grouting injection hole formed through the inner casing at the bottom of the natural water level using a cloth mill;
A shielding material injection hole formed through the inner casing of the shielding section using a fabric mill;
A shielding material injecting device configured to pressurize and supply the shielding material to the shielding material injector;
A shielding material injector connected to the shielding material injection device and installed to inject the shielding material into the shielding material injection hole;
A shielding material injected by a shielding material injector to shield between the inner casing and the groundwater core wall;
An underground water well screening device comprising a grouting material filled from a top of a shielding material between an inner casing and an underground water well cavity by using a shield material injection device and a shield material injector through a balance hole or a grouting material injection hole to form a water repellent wall. The method according to claim 1,
The balance hole is drilled at the bottom of the groundwater level and is composed of one or more places, and the groundwater core shielding device, which can be used as a grouting injection hole. The method according to claim 1,
The shielding material press-in device is a groundwater heart shield device characterized in that the piston is built into the cylinder by injecting a pressurized fluid using a hydraulic or pneumatic or hydraulic pressure to the piston built-in to discharge the shielding material filled in the cylinder. The method according to claim 1,
The shielding material press-fitting device is groundwater core shielding device, characterized in that it is composed of a grouting pump capable of forcibly injecting a hard cement solution or a cement solution. The method according to claim 1,
The shielding filler injector is configured such that the upper shielding packer and the lower shielding packer shielding the inner casing are connected to the shielding material discharge pipe and the shielding material pressurized from the shielding material injection device is introduced into the shielding material injection hole from the shielding material discharge pipe. Shield. The method according to claim 1,
The shielding agent injector is a ground water core shielding device, characterized in that the injection hole is installed in the injection angle is configured to be inserted into the shielding material injection hole formed in the inner casing and the forward compression device is installed at the rear. The method according to claim 1,
An underground water well shield device comprising an underwater camera in a shielding agent injector. The method according to claim 1,
The shielding material is ground water heart protection device, characterized in that made of kneaded mud, kneaded bentonite, kneaded cement or kneaded mixtures thereof. The method according to claim 1,
The shielding material is ground water core shielding device, characterized in that by mixing with water infused with agar dissolved in high temperature. The method according to claim 1,
The shielding material is groundwater core shielding device, characterized in that it is configured by using a synthetic resin pool that is softly dissolved when heated to a high temperature. The method according to claim 1,
The shielding material is groundwater core shielding device, characterized in that the epoxy or urethane series operating by allowing the liquid to be mixed. The method according to claim 1,
A groundwater barrier shield comprising a grouting barrier wall made of a hard cement material and a cementitious wall made of a general cement. The method according to claim 1,
The shielding material injection hole is ground water core shielding device, characterized in that by inserting a support cylinder having a perforated opening in the inner circumferential surface of the inner casing after cutting the inner casing. In the groundwater deep well shielding method,
Drilling a balance hole or grouting injection hole and a shielding material injection hole in the inner casing using a fabric mill;
Placing the shielding agent injector in the shielding material injection hole so as to inject the shielding material;
Injecting a shielding material between the inner casing and the groundwater core well wall through the shielding material injection hole using a shielding material press-in apparatus to form a shielding material order wall;
A groundwater core shielding method comprising a step of forming a water barrier wall by injecting a grouting material through a balance hole or a grouting material injection hole to cure. In the groundwater deep well shielding method,
Drilling a balance hole and a shielding material injection hole in the inner casing using a cloth mill;
Shielding the upper and lower ends of the shielding injection hole in the inner casing by arranging the shielding injection hole between the upper and lower packers of the shielding injection machine;
Injecting a shielding material filled by using a shielding material injection device between the inner casing and the groundwater core wall through the shielding material injection hole to form a shielding order wall;
Forming a hard hard order wall by injecting and curing a hard hard grouting material through a balance hole or a grouting material injection hole;
Installing a prepacker inside the inner casing;
Groundwater core well shielding method characterized in that consisting of a process for performing a pumping test by operating the submersible motor pump. In the groundwater deep well shielding method,
Lifting the submerged motor pump inside the groundwater core well to form a pore;
Irradiating the inside of the inner casing with an underwater camera;
Drilling a balance hole or grouting injection hole and a shielding material injection hole in the inner casing using a fabric mill;
Arranging the shielding material injector to be located in the shielding material injection hole;
Injecting a shielding material between the inner casing and the groundwater core hole wall through the shielding material injection hole using a shielding material injecting device to form a shielding material order wall;
Injecting and curing a hard hard grouting material through a balance hole or a grouting material injection hole to form a fast hard ordering wall;
Installing a prepacker inside the inner casing;
Performing a pumping test by operating the submersible motor pump;
Shielding the balance hole or grouting material injection hole punched in the upper portion using a shielding packer;
Injecting and curing the grouting material to form a grouting order wall;
Washing and cleaning the inside of the groundwater core;
An underground water well shielding method, comprising a process of pumping ground water by installing a pumping facility inside an underground water well.
KR1020100136344A 2010-12-28 2010-12-28 Groundwater deep well shielding device and method KR20120074489A (en)

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KR101394171B1 (en) * 2013-07-01 2014-05-14 한국지질자원연구원 Sample gather apparatus and method of borehole
CN105954464A (en) * 2016-04-21 2016-09-21 北京中地泓科环境科技有限公司 Method for constructing soil gas and underground water monitoring wells
KR102157125B1 (en) * 2019-05-28 2020-09-17 주식회사 정이노베이션 Water quality improvement apparatus for underground water well
KR102403495B1 (en) * 2021-11-23 2022-05-30 강산기술단 주식회사 Multipurpose total inspection device and digital construction method of reinforced structure underground using the same

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Publication number Priority date Publication date Assignee Title
KR101337610B1 (en) * 2013-01-18 2013-12-06 주식회사 지앤지테크놀러지 Shielding device for underground water excavation inner casing and method thereof
KR101394171B1 (en) * 2013-07-01 2014-05-14 한국지질자원연구원 Sample gather apparatus and method of borehole
US9765616B2 (en) 2013-07-01 2017-09-19 Korea Institute Of Geoscience And Mineral Resources Apparatus for sampling water in borehole, and method thereof
CN105954464A (en) * 2016-04-21 2016-09-21 北京中地泓科环境科技有限公司 Method for constructing soil gas and underground water monitoring wells
KR102157125B1 (en) * 2019-05-28 2020-09-17 주식회사 정이노베이션 Water quality improvement apparatus for underground water well
KR102403495B1 (en) * 2021-11-23 2022-05-30 강산기술단 주식회사 Multipurpose total inspection device and digital construction method of reinforced structure underground using the same
WO2023096110A1 (en) * 2021-11-23 2023-06-01 강산기술단 (주) Multi-purpose total inspection device for underground measurement, with which underground safety management and post-inspection are possible, and digital construction method for underground reinforcement structures by using same

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