KR20060005330A - The installing method of an intake pipe with double strainer and its apparatus - Google Patents

Abstract

The present invention relates to a double strainer and a method for installing a groundwater fruit permanent collection pipe using the same, and more specifically, when a plurality of horizontal wells are started radially from the ground vertical wells, a double strainer is inserted into the horizontal thrust casing. After excavation at the ground and completely grounding the horizontal well, the method of installing a permanent intake pipe by removing only the horizontal thrust casing, and a double strainer as a device used in the method.

According to the present invention, a first step of drilling a vertical well and installing a vertical pipe thereto; A second step of installing a sleeve in the vertical pipe at a predetermined interval to perforate the horizontal tablet radially from the vertical tablet; Inserting a horizontal propulsion head into the sleeve, spraying high pressure water into an input water pipe, and drilling a horizontal well while discharging the excavated soil to the outside; In the underground permanent fruit intake pipe installation method comprising a fourth step of installing a valve in each of the horizontal well sleeve, the third step is to connect the horizontal propulsion casing to the horizontal propulsion head, the double strainer inside the horizontal casing Integrally inserting and starting work with the input water pipe and the earth and sand discharge pipe being inserted into the double strainer; The process of drawing and removing the input water pipe, the earth and sand discharge pipe, and the horizontal propulsion casing after the construction of the horizontal well is completed. There is provided a double strainer composed of a small diameter inner strainer, a large diameter outer strainer having a porous plate formed in a cylindrical shape, and a water quality improving material filled in a space between the inner strainer and the outer strainer.

Vertical well, horizontal well, double strainer, horizontal thrust casing

Description

Double strainer and installation method of underground underground fruit intake pipe using the same {The installing method of an intake pipe with double strainer and its apparatus}

Figure 1 is an installation state of the underground fruit tree permanent intake pipe constructed by the present invention

2 is a state in which the sleeve is installed to start the horizontal well

3 is a state diagram to start the horizontal well

4 is a state in which one horizontal well is completely grounded

5 is a state diagram for removing the horizontal propulsion casing

6 is a state in which the permanent intake pipe is completely installed

Figure 7 is a detailed view of the inside of the horizontal propulsion casing in the process of starting the horizontal well

8 is a detailed operation state diagram of part "A" of FIG.

9 is a state diagram removed the input water pipe and the soil discharge pipe

10 is a state in which the horizontal thrust casing is removed

11 is a coupling and action state diagram of the double strainer

12 is a perspective view of a double strainer;

※ Explanation of codes for main parts of drawing

1: vertical tablet 2: vertical pipe

3: leveling 4: sleeve

5: horizontal propulsion head 6: input water pipe

7: soil discharge pipe 8: valve

9: Horizontal Propulsion Casing 10: Double Strainer

11: inner strainer 12: outer strainer

13: filter material for water quality improvement 14: fastening hole

15: tightening flange 16: permanent intake pipe

17: propulsion device 18: through hole

19: fastener 20: packing

The present invention relates to a double strainer and a method for installing a groundwater fruit permanent collection pipe using the same, and more specifically, when a plurality of horizontal wells are started radially from the ground vertical wells, a double strainer is inserted into the horizontal thrust casing. After excavation at the ground and completely grounding the horizontal well, the method of installing a permanent intake pipe by removing only the horizontal thrust casing, and a double strainer as a device used in the method.

For the production of tap water, vertical wells are drilled at lakes or riversides, and a number of horizontal wells are radially drilled from the bottom of vertical wells to collect the required water from them. This method aims to reduce the pollution of raw water by utilizing the functions of natural filtration and midnight by the geological structure of the underground part of the lake or riverside.

Such a conventional method consists of the following steps. First, drilling a vertical well at an appropriate position on a lake or riverside, installing a sleeve in the perforation part to drill a horizontal well in the radial direction of the vertical well, installing a horizontal propulsion head in the center of the sleeve, and horizontally in the horizontal propulsion head. Installing an input water pipe and a soil discharge pipe in the propulsion casing and the inside thereof; Injecting high pressure water into the input water pipe and starting the horizontal well while discharging the excavated soil to the soil discharge pipe; When the horizontal well is completely started, removing the input water pipe and the earth and sand discharge pipe, inserting the strainer into the horizontal propulsion casing and filling the water quality improvement medium in the space formed between the strainer and the horizontal propulsion casing; Removing the horizontal thrust casing; And installing the valve in the sleeve installed at the beginning of the horizontal well.

The strainer used in the above serves as a manure tube for taking in only raw water except earth and sand, and a single tube is formed in a cylindrical shape, and a flange protruding outwards at both ends of the pipe so that a plurality can be connected to each other. It is formed and is used by connecting a plurality of fasteners to the flange.

Looking at the above method, the horizontal propulsion casing and the strainer is inserted into the horizontal well in a separate process, the water quality improvement media is also injected into a separate process. And strainer has a single sieve forming the tube.

As described above, the conventional case consists of many processes, and the strainer and the above processes have the following problems. That is, since a plurality of strainers are connected to each other, and flanges are formed at both ends to fill the water quality mediator, inserting the strainer into the horizontal thrust casing forms a space portion at the outside of the strainer and the inside of the horizontal thrust casing. do.

Conventional methods are intended to improve the water quality of raw water taken by filling the water quality improvement media in such a space, but if the horizontal promotion casing is removed after the water quality improvement media is filled, the quality improvement media has a density. Is low and flows down by gravity, creating an empty space in the upper shaft. Therefore, the problem arises that the top soil of the horizontal well collapses and sinks in the empty space part, and the filling effect of the water quality improvement media is lost, and the permanent intake pipe is gradually blocked by the soil.

An object of the present invention is to solve the problems shown in the conventional method, to simplify the process by performing a state in which the strainer is integrally inserted into the interior of the horizontal propulsion casing when starting the horizontal well, the strainer is internal and external The structure of double strainer with two pipes is formed, and the filling material for improving water quality is filled between the inner and outer strainers, which simplifies the process and prevents the sedimentation of horizontal wells, thereby improving water intake and raw water quality. To provide a groundwater permanent intake pipe installation method using a double strainer to obtain a double strainer used for this.

The present invention comprises a first step of drilling a vertical well (1) having a predetermined width and depth around a river or lake and installing a vertical pipe (2); A second step of installing a sleeve (4) in the vertical pipe (2) at regular intervals to perforate the horizontal tablet (3) radially from the bottom of the vertical tablet (1); Excavate the ground through the sleeve (4) to insert the horizontal propulsion head (5), injecting high pressure water into the input water pipe (6) and discharge the excavated earth and sand to the earth discharge pipe (7) to the horizontal well ( A third step of drilling 3); It is an improvement of the method of installing the underground fruit permeable intake pipe including the fourth step of installing the valve 8 in the sleeve 4 of each horizontal well 3, which has a great feature in the third step.

That is, the third step of the characteristics of the present invention is to connect the horizontal propulsion casing (9) to the horizontal propulsion head (5), inserting the double strainer (10) integrally inside the horizontal propulsion casing (9), A process of grounding with the input water pipe 6 and the earth and sand discharge pipe 7 inserted into the double strainer 10; After completely grounding the horizontal well 3, the process of drawing and removing the input water pipe 6, the earth and sand discharge pipe 7 and the horizontal propulsion casing (9).

The double strainer 10 of the present invention used in the above method is a small diameter inner strainer 11 having a porous plate in a cylindrical shape, a large diameter outer strainer 12 having a porous plate in a cylindrical shape, and the inner strainer. (11) and the outer strainer (12) is characterized in that it consists of a water quality improvement material (13) filled in the space.

And as a structure for the connection of the double strainer 10, the fastening flange 15 is formed on each side end of the inner strainer 11 and the outer strainer 12, the fastening hole 14 is formed.

The water quality improvement medium 13 is selected from one type of mineral, activated carbon, plastic, elvan, talc, fluorite, jade, mica, zeolite, and pearlite.

Referring to the method of installing the underground fruit tree permanent intake pipe using the double strainer 10 as described above in detail as follows.

The first step is to drill the vertical well (1) and to install the vertical pipe (2). This is illustrated in Figs. 1 and 2, to drill the vertical well (1) on the lake side or riverside for water intake, to prevent the collapse of the vertical well (1) and to easily start the construction of the horizontal well (3) and future water intake The vertical pipe (2) is installed on the wall of the vertical well for management.

The second step is the step of installing the sleeve 4 in the vertical pipe 2 at regular intervals in order to drill the horizontal tablet 3 radially from the vertical tablet 1, as shown in FIG.

In order to take in a large amount of water, a plurality of horizontal wells 3 must be drilled, and each horizontal well 3 is inserted with a horizontal thrust casing 9 to face the perforation. The sleeve 4 is installed on the vertical tube 2 at the beginning of the horizontal well 3 radially perforated so as to be in close contact with the outer surface so that the soil does not leak into the vertical tube 2.

The third step is to start the horizontal well 3 in earnest and install the permanent intake pipe 16, which is the step of achieving the features of the present invention. First, the permanent intake pipe 16 is defined as consisting of a horizontal propulsion head (5) and a plurality of double strainers (10) connected in turn.

In order to start the horizontal well 3, the horizontal thrust head 5 is inserted into the sleeve 4 so that the excavation can be carried out, and the horizontal thrust casing 9 is sequentially connected to the horizontal thrust head 5 to excavate. Propulsion device 17 is installed as shown in FIG.

Then, as shown in FIG. 3, the horizontal propulsion casing 9 is connected to the rear end of the horizontal propulsion head 5 to be propelled. The double propeller 10 is integrally inserted into the horizontal propulsion casing 9 as shown in FIG. 7. Propelled in a state that is, and the inside of the double strainer 10, the input water pipe 6 and the soil discharge pipe (7) is installed. The installation relationship between the input water pipe 6 and the horizontal propulsion head 5 of the earth and sand discharge pipe 7 is shown in FIGS. 7 and 8, wherein one end of the input water pipe 6 and the earth and sand discharge pipe 7 is the horizontal propulsion head. In communication with the inside of (5), a plurality of through holes 18 are formed in the horizontal propulsion head (5).

Therefore, when the excavation while spraying high-pressure water into the input water pipe (6), water is injected into the through hole 18 of the horizontal propulsion head (5), through which the excavated soil is moved into the horizontal propulsion head (5) It is introduced, which is discharged to the outside through the soil discharge pipe (7) by the water pressure again.

As the horizontal tablet 3 is deeply excavated, a plurality of horizontal propulsion casings 9 and double strainers 10 are required. In this case, each end portion may be used as a fastener.

Having a double strainer 10 structure of the present invention for use in this step, a perspective view is shown in FIG. That is, the double strainer 10 has a small diameter inner strainer 11 having a porous plate in a cylindrical shape, a large diameter outer strainer 12 having a cylindrical shape in a porous plate, and the inner strainer 11 and an outer strainer ( 12) and a structure for connecting the plurality of water to each other, the fastening holes 14 are formed at both ends of the inner strainer 11 and the outer strainer 12, respectively. The formed fastening flange 15 is attached.

As described above, each horizontal well 3 is excavated with the double strainer 10 integrally inserted into the horizontal thrust casing 9. More details are shown in FIG. 7, wherein the connection of the plurality of input water pipes 6 is simply made by screwing, and the horizontal thrust casing 9 is shown to be joined by a fastener 19. Of course, the connection structure of the double strainer 10 is shown in Figs. 11 and 12, by inserting the packing 20 between the fastening flange 15 can be prevented from entering the external soil.

As described above, the present invention connects the horizontal propulsion casing 9 to the horizontal propulsion head 5, inserts the double strainer 10 into the interior of the horizontal propulsion casing 9, and internally the double strainer 10. In the state in which the input water pipe (6) and the earth and sand discharge pipe (7) is inserted into the construction, the high pressure water is injected into the input water pipe (6) and the excavated soil is discharged to the outside to the earth and sand discharge pipe (7).

When the horizontal well 3 is completely grounded as described above, the input water pipe 6 and the soil discharge pipe 7 are drawn and removed. Thus, the state in which the input water pipe 6 and the soil discharge pipe 7 are removed is shown in FIG. The horizontal thrust casing 9 is also drawn and removed, which is shown in FIGS. 5 and 10.

In the above, when the horizontal thrust casing (9) is drawn and removed, the surrounding soil is collapsed by the thickness of the horizontal thrust casing (9). In the present invention, the double strainer (10) of the horizontal thrust casing (9) Since the horizontal well (3) was grounded after being integrally inserted into the inside, the collapse of the soil has no effect on the intake.

On the contrary, in the conventional case, after the horizontal well 3 is completely ground with the horizontal propulsion casing 9, the strainer is finally inserted, and then the horizontal propulsion casing 9 is drawn out and removed, in particular, the horizontal circumference of the strainer and the horizontal propulsion. After the water quality improvement media 13 are filled between the inner circumferential surfaces of the casing 9, the horizontal thrust casing 9 is removed, so that the water quality media 13 is placed in the space between the strainer and the earth and sand. After gravity and horizontal thrust casing 9 were removed, it flowed down by the space part, so that the soil of the upper part collapsed into the larger space part and could not perform the role of the strainer.

However, in the present invention, the water-improving medium 13 is densely packed between the inner strainer 11 and the outer strainer 12, and the double strainer 10 having such a structure is horizontally fixed (3). As the excavation proceeds in the state inserted into the horizontal thrust casing 9 at the time of excavation, even if the horizontal thrust casing 9 is removed after completion of the excavation of the horizontal well 3, the water-improving media 13 can be removed from the space. There is no problem of falling down by this. In addition, the process is much simpler than in the prior art.

The state in which the horizontal thrust casing 9 is removed is shown in FIG. 6, and the working state of the double strainer 10 is shown in FIG. 11. That is, as shown in FIG. 11, the double strainer 10 allows the water-improving medium 13 to function perfectly, and there is no degradation of the function due to the collapse of the soil. Therefore, the natural water purified by the underground soil structure of the lakeside or riverside is purified and filtered again while passing through the water-improving media 13 as shown in FIG.

The fourth step is the step of installing the valve 8 in the sleeve 4 of the horizontal well 3 after the grounding of the horizontal well 3 is completed.

Thus, the present invention by using the double strainer 10, it is possible to easily install the ground fruit permanent intake pipe, and even after the grounding of the horizontal well (3) to maintain the function of the strainer even if the soil is partially collapsed natural purification By filtering the raw water again, you can take good quality raw water.

Claims (3)

A first step of drilling a vertical well (1) and installing a vertical pipe (2) thereto; A second step of installing a sleeve (4) in the vertical pipe (2) at regular intervals to drill the horizontal tablet (3) radially from the vertical tablet (1); Inserting the horizontal propulsion head (5) into the sleeve (4), and sprays the high pressure water into the input water pipe (6) and punctures the horizontal well (3) while discharging the excavated soil to the earth discharge pipe (7) The third step; In a method of installing a permanent fruit intake pipe for underground fruit, including the fourth step of installing the valve (8) in the sleeve (4) of each horizontal well (3), the third step is the horizontal propulsion casing on the horizontal propulsion head (5) (9) connected, the double strainer 10 is integrally inserted into the horizontal propulsion casing (9), the input water pipe (6) and the soil discharge pipe (7) is inserted into the double strainer (10) A process of starting work in a state; After the construction of the horizontal well (3) completely, the process of drawing and removing the input water pipe (6), the earth and sand discharge pipe (7) and the horizontal propulsion casing (9); underground permanent fruit intake pipe using a double strainer, characterized in that consisting of How to install. A small diameter inner strainer 11 formed in a cylindrical shape with a porous plate, a large diameter outer strainer 12 formed in a cylindrical shape, and filled in a space between the inner strainer 11 and the outer strainer 12. Double strainer used in the underground water permeable pipe installation method, characterized in that consisting of a filter for improving the water quality (13). The double strainer according to claim 2, wherein both sides of the inner strainer (11) and the outer strainer (12) are provided with fastening flanges (15) having fastening holes (14), respectively.

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