KR200219401Y1 - Grouting expansion tube device for groundwater deep well with safety relief valve - Google Patents

Abstract

The present invention is intended for grouting using groundwater deep grouting pipe device or waste hole packer for curing concrete on the inner wall of the well to prevent the contaminated surface water from entering the underground well excavated to collect ground water. The present invention relates to a grouting expansion tube device for groundwater cores having a safety release valve. In particular, a discharge conduit connected to an expansion tube of a grouting pipe inserted and installed in the groundwater core is inserted into a recess groove formed by cutting the outer peripheral surface of the grouting pipe. On the other hand, the discharge pipe is connected to the safety release valve fixed to the grouting body. In addition, in the case of closed hole packer, the discharge conduit connected to the expansion tube is installed through the outer periphery of the closed hole packer body, and a safety discharge valve is installed on the upper side of the closed hole packer so that the discharge conduit can be connected to the safety discharge valve. When the pressure rises above the expansion tube, the grouting liquid is discharged to the upper part of the expansion tube so that the expansion tube is not ruptured during the injection of the grouting liquid, thereby improving the reliability of the grouting and providing perfect shielding by the expansion tube. The present invention relates to a grouting expansion tube device for a groundwater deep well having a safety relief valve.

Description

Grouting Expansion Tube Apparatus for Groundwater Well with Safety Relief Valve {.}

As industrialization progresses in modern times, 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.

In general, a preferred groundwater harvesting device is to excavate the rock of the surface to the rock layer using a fixed sized pit, and then to install the large diameter out casing to prevent the collapse of the soil layer or weathered rock layer, and then to excavate the rock layer again. To excavate through the water vein of the groundwater to prevent the inflow of surface water, and to prevent the inflow of soil water or foreign substances in the groundwater at the position where the groundwater is moved to the lower part of the casing, and to maintain the proper flow rate. Perforated plate pipes for strainers to be installed, grouting concrete that is injected and cured to prevent inflow of foreign matter such as surface water into the space between the encasing and the groundwater core wall, and a heart pump installed inside the casing. And installed to be connected to the cardiac pump and by the cardiac pump. It is composed of yangsuyong pipe ground water movement being raised flops.

The cardiac well pump is estrused by an upper level sensor and a lower level sensor installed at a predetermined depth of the groundwater well. In addition, the encasing is provided with a water level measuring tube that can measure and monitor the level of the groundwater to a certain depth.

The present invention can be grouted by using grouting pipe device or ground hole packer for underground water treatment to cure concrete on the inner wall of the heart to prevent the contaminated surface water from entering the underground well excavated to collect ground water. The present invention relates to a grounding grouting expansion tube device having a safety relief valve.

Conventionally, in the grouting construction to block the inflow of polluted surface water, the insulated casing of the diameter size was placed inside the outer casing and the grouting concrete solution was injected into the gap between the inner casing and the groundwater core wall. However, this method has no shielding on the inner casing and the inner wall of the core, so that the grouting concrete liquid injected through the lower part of the casing leaks into the groundwater core and prevented water pollution and perfect grouting.

When the grouting work constructed to prevent the inflow of polluted index water is finished, there is no device and method for supplementing grouting repair that can be completely repaired and reused. There was only.

The present inventor has previously applied for a technology for grouting the groundwater heart well by injecting grouting liquid into the upper portion of the expansion tube while preventing the contamination index water from entering the groundwater well using the expansion tube. However, even with this technology, the expansion tube is installed and the expanded section is located in the deep underground of about 30 meters underground, and even in the case of construction in the depth of more than 80 meters, even more than the depth of the site conditions, the expansion tube during the construction process The pressure of the grouting liquid injected into the expansion tube is changed by changing the water pressure depending on the installation depth of the expansion tube, and the grouting liquid injection tube is changed according to the injection depth. By calculating the volume of grouting liquid remaining in the tube and determining its volume, advanced technology is required in this calculation and work process, and on the other hand, the main work is performed on the ground, so that the appropriate grouting liquid is injected into the expansion tube. Doors that are difficult to determine There was. Due to this problem, if an error occurs in the calculation of the proper injection volume of the grouting liquid injected into the expansion tube, the expansion tube may not be fully inflated, and as a result, between the grouting pipe and the inner wall of the heart, or the inner wall of the empty hole pack and the groundwater core The gap is generated in the liver, so that a complete shielding is not achieved, and the grouting liquid injected into the upper part of the expansion tube, which is made in the next process, leaks into the groundwater well. On the other hand, if too much grouting liquid is injected into the expansion tube, the expansion tube exceeds the proper expansion rate and eventually ruptures, which in turn prevents the shielding in the groundwater well.

The present invention is designed to solve the above-mentioned problems of the prior art, the expansion tube is installed by installing a safety release valve on the bottom of the grouting pipe, the expansion tube is installed, or the expansion tube is installed in the waste pack pack is expanded by the grouting liquid If the expansion tube rises above the appropriate pressure in the situation, the grouting liquid injected into the expansion tube can be discharged to the upper portion of the expansion tube so that the expansion tube is always at the proper inflation pressure at any depth without visual confirmation. It is an object of the present invention to provide a technique that allows a deliberate shielding effect to be achieved.

1 is a perspective view of a grouting pipe device of the grouting expansion tube device for a groundwater heart with a safety relief valve according to the present invention.

Figure 2 is a cross-sectional view of the grouting pipe device of the grouting expansion tube device for groundwater heart with a safety relief valve according to the present invention.

3 is a perspective view of a closed air packer in a ground water core grouting expansion tube device having a safety release valve according to the present invention.

[Description of the major symbols in the drawings]

1 ....... grouting pipe 2 ....... expansion tube 3 ...... tube band

4 ....... Grouting Injection Tube 5 ....... Infusion Tube Connection 6 ...... Safety Relief Valve

7 ....... Punching part 11..Release valve body 12..Adjustment screw

13 ...... Adjustment spring 14 ...... Valve stem

The present invention is characterized in that the expansion tube is installed at the bottom of the grouting pipe, or the expansion tube installed in the closed hole packer by means of a safety release valve connected to the discharge conduit so that the expansion tube can be expanded at any time.

In addition, the safety relief valve should be provided with a body formed with an opening tool for connecting the valve seat and the discharge conduit and an adjustment screw for adjusting the pressure of the spring to set the spring on the upper part of the valve stem, It is characterized by the installation of a perforation part.

Referring to the configuration and operation of the present invention in detail with reference to the drawings as follows.

The discharge conduit 10 connected to the expansion tube 2 of the grouting pipe 1 inserted and installed in the groundwater core is inserted into the recess groove formed by cutting the outer circumferential surface of the grouting pipe 1, and the grouting pipe ( 1) The discharge conduit 10 is connected to the safety release valve 11 fixed to the body. In addition, in the case of the closed hole packer 8, a discharge conduit 10 connected to the expansion tube 2 is installed through the outer periphery of the body of the closed hole packer 8, and a safety release valve 6 is installed on the upper side of the closed hole packer 8. To allow the discharge conduit to be connected.

In addition, the safety relief valve (6) is a safety relief valve body (1) formed with openings for connecting the valve seat and the discharge conduit (10) and the spring (13) is seated on the valve stem upper and the pressure of the spring (13) An adjustment screw 12 for adjusting the pressure of the spring 13 is to be positioned on the adjustment screw 12 so as to form a perforation portion 7 for discharge.

The safety relief valve 6 can obtain the same effect even if the valve seat is made into a flat disk ring having a centered hole, and a regular plate valve using elasticity is installed in the valve seat.

If you describe the operation of the present invention as described above,

The expansion tube 2 installed in the grouting pipe 1 or the closed hole pack 8 allows the grouting liquid to flow into the expansion tube 2 through the grouting liquid injection tube 4 and the expansion tube 2 is initially expanded. If the pressure is over, the expansion is made steadily and shields the space between the grouting pipe (1) and the inner wall of the groundwater core. At this time, if the initial expansion pressure of the expansion tube (2) is 0.5㎏ / ㎠ and the maximum expansion pressure is 1.5㎏ / ㎠ when the maximum expansion pressure exceeds the expansion tube (2) continues to expand and eventually rupture in the groundwater core Will be On the other hand, if the maximum expansion pressure is continuously maintained, the expansion tube 2 is sufficiently inflated within a safe expansion range. At this time, the excessively injected grouting liquid is discharged through the discharge conduit 10 of the safety release valve 6. As the valve stem 14 is pushed up and the spring adjusted to the predetermined prescribed pressure is compressed, the grouting liquid is discharged to the outside through the punched part 7 processed in the adjusting screw 12. When the expansion pressure of the expansion tube 2 is changed due to the hardness or the like during the manufacturing process of the expansion tube 2 or when pressure adjustment is necessary in the working site, the adjustment screw 12 is rotated to rotate the spring 13. This is possible by adjusting the compression force.

As described above, the groundwater heart grouting expansion tube device having a safety release valve according to the present invention was previously calculated by simply injecting only a volume, so that there is a possibility that the shielding may not be completed completely due to insufficient injection volume in some recessed sections. Since the application of the present invention is to manage only the expansion pressure irrespective of the injection volume to fill the recessed portion faithfully to increase the shielding effect of the expansion tube (2), as well as excessively injected grouting liquid is discharged conduit ( 10) through the safety release valve (6) is discharged to the upper portion of the expansion tube (2) it is possible to prevent the bursting of the expansion tube (2) in the grouting liquid injection process. In addition, the grouting pipe system is simplified even for any worker who has completed a simple training course by simplifying the high level of technicality that must be calculated and calculated in the process of calculating and calculating the accurate amount of grouting solution. The grouting of the groundwater depth wells is possible, as well as the effect of enabling simple original recovery of the closed holes using the closed hole packer.

Claims (2)

The present invention is a grouting expansion tube for groundwater wells known in the bottom of the grouting pipe (1), or a closed hole packer (8), Safety relief valve having a safety relief valve, characterized in that the expansion tube (2) by installing a safety relief valve (6) connected to the discharge conduit (10) so that the expansion tube (2) is always expanded under the intentional expansion pressure Grouting Expansion Tube Device for Groundwater Well The method of claim 1, The safety relief valve 6 has a safety relief valve body 11 having an opening for connecting the valve seat and the discharge conduit 10 and a spring 13 mounted on the valve stem 14, and An adjustment screw 12 for adjusting pressure is positioned above the spring 13, and the adjustment screw 12 has a discharge perforation portion 7 formed therein. Tube device.