KR20010017258A - Underground water deep well incasing pipe cutting apparatus - Google Patents

Abstract

PURPOSE: An underground water deep well incasing pipe cutting apparatus is provided to newly install an additional incasing pipe for grouting purposes, to prevent pollution of underground water in a bedrock aquifer, and to exclude the inflow of polluted surface water during restoring. CONSTITUTION: In an underground water deep well incasing pipe cutting apparatus which comprises a cylindrical pipe (28) provided with an expansion tube (3), an underwater motor (15), a splitting plate fastening cylindrical body (21), a cutter blade (24), an underwater motor (15); a cutter blade (24) is installed an underwater motor (15) aligned and fixed by an expansion tube (3) and a splitting plate (22) is installed on the outer surface of a cylindrical body; an expansion tube (2) of a cylinder shape fixes a cylindrical pipe (28) by a tube band (14) after installing to the outer surface of a cylindrical pipe (28) and a fluid pouring tube (29) is installed inside a cylindrical pipe (28); a splitting plate (22) installed on the outer surface of the underwater motor (15) is in a structure to set a leg (23) apart outward by hydraulic pressure and can use an expansion tube to be expanded on a part of the outer surface; an expansion pipe (42) is inserted through the center of a disk cover (37), where an arc (41) indicated equally to the diameter of an incasing pope (2) of an underground water deep well is described, and connects a handle (43) rotating an expansion pipe (42) to move a contact surface of a cutter blade (24).

Description

Groundwater Well Encased Pipe Cutting Machine

The present invention cuts and lifts the in casing pipe inserted to maintain a constant gap with the groundwater core wall and groundwater core to prevent the sinking of the inner wall of the groundwater and to maintain the fillers such as gravel and sand in the core excavated to collect the groundwater. The present invention relates to a groundwater core incineration pipe cutting device.

As industrialization progresses in recent years, environmental pollution is intensifying and interest in clean drinking water is increasing. Therefore, in recent years, researches on devices for purifying tap water or surface water and devices for developing uncontaminated groundwater have been intensified.

Groundwater harvesting apparatus generally preferred in the groundwater core well is a large diameter installed to prevent the collapse of the weathered rock layer 10 after excavating the rock of the surface to the rock layer (11) by using a rocker of a predetermined thickness as shown in FIG. Out casing (1),

After driving the outcasing (1) and excavating the rock bed layer 11 again to penetrate through the veins of the groundwater 13, to prevent the sinking of the inner wall of the groundwater, and to maintain a constant flow rate of the groundwater in the rock vein An encasing pipe installed to maintain a predetermined gap between the inner wall of the groundwater well and the groundwater well, which is installed to secure a space for filling the filler such as gravel and sand for

A pipe for a strainer (strainer) which is installed at the lower portion of the encasing (2) to prevent the inflow of soil or foreign matter from the ground water (13) at a position where the ground water (13) is moved, and to maintain a proper flow rate;

Concrete 4 that is injected and cured to prevent inflow of foreign substances such as surface water 12 into the space between the encasing pipe 2 and the groundwater core inner wall;

Heart pump (5) installed in the casing (2),

It is installed to be connected to the heart pump (5) and consists of a pumping pipe (6) to move the ground water 13 is pumped by the heart pump (5).

The cardiac well pump 5 is heat-set by the upper level sensor 8 and the lower level sensor 9 provided in the pumping pipe 4.

In addition, the encasing (2) is provided with a water level measuring tube (7) capable of monitoring the level of the groundwater to a certain depth.

Conventionally, in order to meet a contracted amount by collecting a large amount of groundwater, the insertion depth of the out casing 1, which is to be pushed up to a part of the rock layer 11, is often pushed only to the middle of the weathered rock layer 11, and even out casing. In some cases, a perforation was formed in (1) to deliberately induce surface water (12), and the encasing pipe (2) for grouting has not been constructed with a large number of groundwater cores, and some synthetic resin inks In the case of the seam where the yising pipe (2) is embedded, the grouting construction to prevent the inflow of surface water (12) is often not carried out, and even if it is properly constructed, it is naturally caused by cracking of the grouting section after a long time. Contaminated surface water enters the groundwater well without any obstruction and is mixed with clean rock groundwater. The case of the enemy to spread the overall pollution of groundwater (13) occurred much.

In addition, the most conventional construction method is to simply inject only the casing pipe (2) without grouting the existing groundwater wells. This can only be limited due to the curved heart shape in which the encasing pipe 2 is embedded and can not fundamentally prevent contamination due to the inflow of surface water 12.

In the case of the groundwater core well in which the encasing pipe 2 is constructed, when the grouting section is to be reconstructed to obtain only the clean aquifer rock mass 13 in which the contaminant index water 12 is not introduced, the encasing pipe inserted into the groundwater core well After lifting (2) as a whole, grouting was required after reinsertion, but it was difficult because there was no proper method.

The grouting liquid is filled only inside the casing pipe (2) and the space between the outer circumferential surface of the casing pipe (2) and the inner wall of the groundwater core is not filled with grouting liquid. ) Is continuously introduced into the rock aquifer groundwater (13) is difficult to restore the original waste hole completely there is a problem that can not block the underlying groundwater contamination.

The present invention has been made in order to solve the above-described conventional problems, by cutting the pre-inserted in casing pipe (2) at a predetermined depth to facilitate the lifting and encapsulating the inner wall of the groundwater core wells of some sections, By forming it into a free space, it is easy to insert and install a new grouting encasing pipe 2 and retry grouting construction, thereby preventing contamination of the rock aquifer groundwater 13 due to the inflow of the contaminated surface water 12. And it is an object of the present invention to provide a groundwater heart casing pipe cutting device that can improve the healing and fundamentally shield the inflow of contamination surface water (12) in the process of rehabilitation of the closed hole.

1 is a schematic cross-sectional view of a general groundwater collection device,

Figure 2 is a cross-sectional view of the groundwater deep well encasing pipe cutting device of the first embodiment according to the present invention

Figure 3 is a perspective view of the groundwater heart well encasing pipe cutting device of a second embodiment according to the present invention.

Figure 4 is a perspective view of the disc cover according to the present invention.

<Explanation of symbols about main part of drawing>

1 .... out casing 2 ...... in casing pipe 3 ...... expansion tube

5 ....... Heart pump 14 ....... Tube band 16 ...... Hydraulic hose

17 ........ Power Cable 20 ....... Shaft 22 ....... Hydraulic Separator

24 ...... Catanal 28 .... Cylindrical pipe 29 ......... Connection socket

31 ........ Hydraulic Cylinder 36 ....... Cutting Position Indicator 39 ...... Hydraulic Hose Outlet

40 ........ Power cable outlet

The present invention provides an incasing pipe inserted to maintain a constant gap with the groundwater core inner wall and groundwater core to prevent the sinking of the inner wall of the groundwater and to maintain the fillers such as gravel and sand in the core excavated in the underground to collect groundwater. As the groundwater core casing pipe cutting device for cutting and lifting the

The caterpillar 24 is attached to the submersible motor 15 in which the centering and fixing are performed by the expansion tube 2, and the spacer 22 is provided in the cylindrical outer peripheral surface side.

In addition, the expansion tube 3 has a cylindrical shape and is inserted into the outer circumferential surface of the cylindrical pipe 28 of a predetermined length, and then fixed with a tube band 14, and the fluid injection tube 29 is installed inside the cylindrical pipe 28. It is characterized by.

In addition, the separation plate 22 installed on the outer circumferential surface of the submersible motor 15 is characterized in that the leg 23 is opened to the outside by hydraulic pressure, the separation plate 22 is expanded to be formed only to expand on a portion of the outer circumferential surface It is characterized in that the tube can also be used.

Further, the extension pipe 42 is inserted through the extension pipe 42 in the center of the disc cover 37 drawn with the arc 41, which is the same as the diameter of the encasing pipe 2 of the groundwater core, and rotates the extension pipe 42. It is characterized in that the handle 43 can be connected to move the contact surface of the cutter blade 24.

In addition, a cutter blade 33 is attached to an upper portion of the piston rod 32 protruding by the hydraulic pressure of the hydraulic cylinder 31, which is centered and fixed by the expansion tube 3, and the cutter blade 34 on the opposite side thereof. Characterized in that attached.

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

[First Embodiment]

First, referring drawings, Figure 2 is a cross-sectional view of the entire installation of the submersible motor casing enameling pipe cutting device of the first embodiment according to the present invention, Figure 4 is a perspective view of the upper disc cover of the first and second embodiments of the present invention. .

In order to cut the encasing pipes (2) for rehabilitation or reconstruction of closed holes, the facilities installed primarily inside the groundwater core wells, such as the well pumps and power cables, and the water level measuring pipes, pumping pipes and level switch lines All of their backs should be lifted to the outside and grounded inside the groundwater wells.

Then, using the cardiac camera, determine the shape of the groundwater core by depth and the installation form of the encasing pipe (2), and then connect and connect the wire rope (26) to the connecting ring (18) attached to the upper portion of the cylindrical pipe (28). The cutting device is lowered into the groundwater core while connecting the extension pipe 42 to the socket 27.

The cutting device is largely composed of a cylindrical pipe 28 on which the expansion tube 3 is mounted, a submersible motor 15, and a spacer plate 21 having a spacer plate 22 attached thereto, and a cut canal 24.

The expansion tube (3) has a cylindrical shape and is inserted into the outer circumferential surface of the cylindrical pipe (28) of a predetermined length and fixed with a tube band (14). The cylindrical pipe (28) is used to expand the expansion tube (3) therein. When the expansion tube 3 is fixed underwater even when the injection tube 29 is embedded and the extension pipe 42 penetrates into the connection socket 27 to rotate the extension pipe 42 from the outside. The motor 15 and the cylindrical body 21 are integrated with the extension pipe 42 so as to rotate naturally, and supply power to the connecting ring 18 and the underwater motor 15 for connecting the wire rope 26. A hydraulic hose outlet for supplying hydraulic pressure to the outlet of the power cable, and the connecting socket 27 for fastening the extension pipe 42 and the separation plate 22 may be configured at the upper portion thereof and may be connected to the submersible motor 15 at the lower portion thereof. To install the coupling device 44.

The rotating shaft 20 of the submersible motor 15 extends long so as to penetrate through the center of the small diameter sleeve pipe 45 formed inside the fixed cylinder 21 of the separation plate 22 to be exposed downward. The male thread was machined to the site to fix the cut canal 24 using the fixing knot 25.

The outer surface of the cylinder 21 is partially cut and fixedly attached to the hydraulic separation plate 22. The hydraulic separation plate 22 has two plate legs 23, and when the hydraulic plate is applied, other plate legs other than the fixed legs ( 23) was produced in the structure that opens.

In addition, the expansion tube manufactured to be expanded only on the outer circumferential surface of the cylindrical body 21 rather than the hydraulic separation plate 22 may be installed on the cylindrical body 21.

In addition, the extension pipe 42 connected to the outside is drawn through the through hole 35 formed in the center of the disc cover 37, the circular arc represented the same as the diameter of the encasing pipe 2 of the groundwater core The cutting position display plate 36 is fixed to the extension pipe 42 and the handle 43 capable of rotating it to the disc cover 37 on which the plate 41 is drawn moves the contact position of the cutter blade 24. The cutting position can be displayed and confirmed from the outside.

The cutting device of the present invention configured as described above,

The cutting device of the present invention is lowered using the wire rope 26 and the extension pipe 42 at the position determined by the cardiac camera, and then the compressed fluid is supplied to the expansion tube 3 and installed in the cylindrical pipe 28. The tube 3 is inflated.

At this time, the expansion tube (3) is inflated between the inner casing (2) inner surface and the outer peripheral surface of the cylindrical pipe (28) to obtain a strong compressive force and by this force the cutting device is naturally centered and the underwater motor ( Even when 15) is operated, perfect fixing can be achieved without shaking.

After that, the power supply to the submersible motor 15 is made to allow the cutter blade 24 to rotate, and then the hydraulic pump is gradually operated to open one plate leg 23 of the hydraulic separation plate 22 fixed to the cylindrical body. Let it go.

As the hydraulic pressure is supplied, the plate-shaped leg 23 of the hydraulic separation plate 22 becomes wider, and the rotating cutter column 24 comes into contact with the inner circumferential surface of the incasing pipe 2 to be cut, and some cutter blades 24 are formed. ) May extend beyond the outer circumferential surface of the encasing pipe (2) to a part of the inner wall surface of the groundwater core.

In this state, the cutting position display plate 36 is slowly rotated along the marking circle 41 marked on the disc cover 37, and when the returning position is returned to the initial starting position, the encasing pipe 2 is cut.

In this case, if the thickness of the cut blade 24 is used, the cutting gap can be widened, thereby increasing the convenience of the grouting work. When the cutting is completed, the hydraulic pressure supplied to the hydraulic separation plate 22 is removed. Then, the plate-shaped leg 23 is returned to its original position by the force of the return spring in the hydraulic separation plate 22, and the cut blade 24 is again positioned at the center of the incasing pipe 2. The pipe 2 is in a crimped state supported by the expansion tube 3. Pulling the wire rope 26 connected to the connecting ring 18 on the upper portion of the cylindrical pipe 28 in this state to draw the encasing pipe 2 to the outside, it is easily cut to the outside when not fixed by concrete The drawn casing pipe 2 is drawn out.

If the encasing pipe (2) is fixed by concrete, operate the cut canal (24) deeply to reach the inner wall of the groundwater core and then rework the grouting to get the perfect grouting effect. The same applies to the cutting of the yising pipe.

In addition, the hydraulic separation plate 22 can obtain the same effect as the plate-shaped legs by causing the piston rod which protrudes by supplying hydraulic pressure to the hydraulic cylinder fixed to the cylindrical body to push the inner peripheral surface of the casing pipe 2.

Second Embodiment

First, referring drawings, FIG. 3 is a cross-sectional view showing the entire installation of the hydraulic cylinder-type casing pipe cutting device of the second embodiment according to the present invention, and FIG. 4 is a perspective view of the upper disc cover of the first and second embodiments of the present invention.

In order to cut the encasing pipes (2) for rehabilitation or reconstruction of closed holes, the facilities installed primarily inside the groundwater wells, such as the well pumps (5) and power cables, and the water level measuring pipe (7), Pumping pipes (6), level switch lines (8), etc. (9) should all be lifted to the outside and the groundwater core inside should be formed.

Then, using the cardiac camera, grasp the inner shape of the groundwater core by depth and the installation form of the encasing pipe (2), and then connect and connect the wire rope (26) to the connecting ring (18) attached to the upper portion of the cylindrical pipe (28). The cutting device is lowered into the groundwater core while connecting the extension pipe 42 to the socket 27.

The cutting device is largely composed of a cylindrical pipe 28 equipped with an expansion tube 3 and a hydraulic cylinder 31 cut.

The expansion tube (3) has a cylindrical shape and is inserted into the outer circumferential surface of the cylindrical pipe (28) of a predetermined length and fixed with a tube band (14). The cylindrical pipe (28) is used to expand the expansion tube (3) therein. The expansion tube (3) even when the injection tube (29) is built and the extension pipe (42) penetrates into the upper and lower connection sockets (27) and (29) to rotate the extension pipe (42) from the outside. The hydraulic cylinder 31 is naturally rotated in the fixed state, and the connection socket 27 and the hydraulic cylinder 31 for fastening the connecting ring 18 and the extension pipe 42 for connecting the wire rope 26. A hydraulic hose outlet 16 for supplying hydraulic pressure to the upper portion was configured at the upper portion thereof, and a coupling connection socket 29 for connecting with the hydraulic cylinder 31 was mounted at the lower portion thereof.

The hydraulic cylinder 31 has a cut blade 33 attached to an upper portion of the piston rod 32 protruding by hydraulic pressure, and a cut blade 34 is attached to the opposite side thereof.

In addition, the connecting socket 30 for connecting with the connecting socket 29 of the lower portion of the cylindrical pipe 28, the expansion tube 3 is installed on the side of the connector attachment position for connecting the hydraulic hose 16 to the hydraulic cylinder 31. ) Was installed.

The cut blades (33) and (34) were made to have a sharp triangular shape with a sharp tip to cut the inner circumferential surface of the casing pipe (2).

In addition, the extension pipe 42 connected to the outside is drawn through the through-hole formed in the center of the disc cover 37, the circular arc 41 represented the same as the diameter of the encasing pipe 2 of the groundwater core wells The cutting position display plate 36 is fixed to the extension pipe 42 by connecting the handle 43 which can rotate it to the disc cover 37 drawn thereon to move the contact position of the cut blade 33 and change the cutting position thereof. It can be displayed and checked externally.

The cutting device of the present invention configured as described above,

The cutting device of the present invention is lowered using the wire rope 26 and the extension pipe 42 at the position determined by the cardiac camera, and then the compressed fluid is supplied to the expansion tube 3 and installed in the cylindrical pipe 28. The tube 3 is inflated.

At this time, the expansion tube (3) is inflated between the inner casing (2) inner surface and the outer peripheral surface of the cylindrical pipe (28) to obtain a strong compressive force and by this force the cutting device is naturally centered and the hydraulic cylinder ( Even if hydraulic pressure is supplied to 31), it can be perfectly fixed without shaking.

Then, when the hydraulic pump is gradually operated to supply hydraulic pressure to the hydraulic cylinder 31, the piston rod 32 comes out, and the cutting blades 33 and 34 come into contact with the inner circumferential surface of the casing pipe 2. This is done.

As the hydraulic pressure is supplied, the protruding lengths of the cut blades 33 and 34 in the hydraulic cylinder 31 become longer, and the cutting of the casing pipe 2 becomes deeper, and some cut blades 33 and 34 are made. The tip may extend beyond the outer circumference of the encasing to a portion of the inner wall of the groundwater well.

In this state, the cutting position display plate 36 is slowly rotated along the marking arc 41 marked on the cover of the encasing pipe (2) to return to the initial starting position. Will be.

At this time, if you use a wide thickness of the cut blade (33), (34) can take a wide cutting gap can increase the convenience when grouting reconstruction,

When the cutting is completed and the hydraulic pressure supplied to the hydraulic cylinder 31 is removed, the piston rod 32 is returned to its original position by the force of the return spring in the hydraulic cylinder 31, and the cut blades 33, 34 ) Is once again positioned at the center of the encasing pipe 2 and the encasing pipe 2 cut by the expansion tube 3 continues to be press-supported.

Pulling the wire rope 26 connected to the connecting ring 18 on the upper portion of the cylindrical pipe 28 to pull out the encasing pipe 2 cut to the outside when the cutting is completed, it is easy if not specifically fixed by concrete Drawing of the encasing pipe 2 cut to the outside is made.

If the encasing pipe (2) is fixed by concrete, operate the cut blades (33) and (34) deeply to reach the inner wall of the groundwater core and then rework the grouting to get the perfect grouting effect. The same applies to recovery.

As described above, the groundwater heart casing encapsulation pipe cutting device according to the present invention causes problems such as cracking of the grouting section, so that the existing casing pipe can be easily cut when the groundwater heart well into which the contamination index water flows is improved during healing. By facilitating the subsequent grouting process,

The cutting of the incasing pipe to completely block the inflow of contaminated surface water that can occur after the restoration of the waste hole by inhibiting the complexity of the work process and the solid filling of the grouting liquid caused by the presence of the incasing pipe during the restoration of the waste hole. It can be easily drawn out, and even when drawing is difficult, it provides an efficient and easy groundwater deep encapsulation pipe cutting effect that can be obtained by injecting grouting liquid using the cut surface to obtain the inflow blocking effect of contaminated index water.

In addition, in the case of a hydraulic cylindrical encasing pipe cutting device, when the press plate having the same circumferential surface as the inner circumferential surface of the encasing pipe is used instead of the cut blade, the hydraulic cylinder may be By operating to ensure a constant diameter of the groundwater core wells can have the effect of enabling the smooth operation of groundwater wells.

Claims (11)

The cantilever is mounted on an underwater motor that is centered and fixed by an expansion tube. Groundwater core incised pipe cutting device, characterized in that a separation plate for moving the cutter blade to the inner circumferential surface side of the casing pipe is installed. According to claim 1, The expansion pipe is a cylindrical shape, the ground water deep encapsulation pipe cutting device characterized in that the tube is inserted into the outer peripheral surface of a certain length of pipe and fixed with a tube band and the fluid injection tube is installed inside the pipe. The method of claim 1, Spacer core installed in the cylindrical body is ground water core incised pipe cutting device, characterized in that the bridge is opened to the outside by hydraulic pressure. The method of claim 1, Separating plate installed in the cylindrical body is a groundwater core encapsulated pipe cutting device that is made by using an expansion tube designed to expand only on a part of the outer peripheral surface of the cylindrical body. The method of claim 1, The axis of rotation of the submersible motor is extended so that it is exposed downward through the center of the small diameter sleeve pipe formed inside the hydraulic spacer cylinder, and the male screw is machined to the exposed shaft to fix the cutter blade using a fixing nut. Groundwater core encapsulation pipe cutting device, characterized in that. The method of claim 2 An extension pipe coupling socket is fixed to the upper part of the pipe pipe, and a submersible motor power line, a hydraulic hose drawing hole, and a lifting rope ring are attached, and the extension pipe penetrates into the upper and lower connection sockets so that it can be extended from the outside. Underground water core encapsulation pipe cutting device, characterized in that it is to be able to naturally rotate the underwater motor in the expansion tube fixed state even if it is to rotate. The extension pipe drawn out is connected to the through-hole formed in the center of the disk cover, and the cutting position indicator is placed on the extension pipe with the circular arc drawn with the same diameter as the diameter of the encasing pipe of the groundwater core. The groundwater cardiac encapsulation pipe cutting device, characterized in that by connecting a handle that can be fixed and rotated to move the contact position of the cutter blade and to display and confirm the cutting position from the outside. A ground water deep encapsulation pipe cutting device, comprising: a cylindrical pipe on which centering and fixing is performed by an expansion tube, and a cut blade is attached to an upper side of a piston rod protruding by hydraulic pressure of a hydraulic cylinder and an opposite surface thereof. The method of claim 8, An underground water well encapsulating pipe cutting device, comprising: a connecting socket for connecting with a connecting socket in a lower portion of a cylindrical pipe in which an expansion tube is installed in a hydraulic cylinder. The method of claim 8, A cut water cutting device for groundwater deep casing pipes, characterized in that the blades are sharply erected in a triangular shape so as to cut the inner circumferential surface of the casing pipe. The method of claim 8, An underground water well encapsulation pipe cutting device, characterized in that a pressure plate having the same circumferential surface as the inner circumferential surface of the encasing pipe is attached to an upper side of the piston rod protruding by the hydraulic pressure of the hydraulic cylinder and an opposite side thereof.