KR101469766B1 - Impact injection grouting device - Google Patents

Abstract

The present invention relates to an impact type injection grouting device and, more specifically, to an impact type injection grouting device using the control of compressed air charging and discharging pressure, which pushes foreign materials in an opening and a gap and effectively penetrates an injection material by applying uniform pressure to the opening and the gap, thereby remarkably improving injection efficiency. The impact type injection grouting device comprises: a water storage room (20) which has an injection material inlet pipe (21) and an injection material outlet pipe (22) opposite to each other; an air compression plate (30) which is formed to apply pressure to an injection material (110) flowing into the water storage room (20); and an opening and closing valve (60) which is powered inside the injection material outlet pipe (22) to discharge the injection material (110) at time intervals after the pressure is applied to the air inside the water storage room (20).

Description

[0001] Impact injection grouting device using compressed air filling and discharge pressure control [

The present invention relates to an impact-type grouting apparatus for use with a compressed air filling and discharge pressure regulating device in a stage just before a grouting injection packer, and more particularly to a cement (Grouting material) such as mortar, paste, suspension, etc. is injected into the cavity or fine gap of the ground by automatically opening and closing the strong axial pressure periodically made by the impact type injection grouting device without injecting by the usual method In addition, the micro-pores and cracks of the clay and rock layers of the reservoir are relaxed, and the pores and crevices of the reservoir are impacted by the constant pressure on the pores and gaps, The efficiency is greatly improved to stabilize the structure.

As it is generally known, micro cracks, uneven settlement and cavities are confirmed during the process of reservoir and seawall construction and port construction. When injection material (grouting material) such as cement mortar, paste and suspension is injected, Grouting work for filling is basically carried out.

Examples of the method of supplying the injection material include a method using gravity, a method using a pump, and a method of injecting an injection material so as to have a pulse by repeating compression and relaxation.

The conventional vacuum injection device for injecting the injection material with pulses has a structure in which a piston repeats a compression stroke. That is, the injection material is injected while being in a compressed state having a strong pressure due to the compression stroke in which the piston moves forward and backward, and also in a relaxed state having a relatively weak pressure.

However, in the system using the piston as described above, the supply of the injection material is not uniform, and in particular, there is a limit in shortening the cycle of the pulse, and the limit value is often not satisfied. Also, it is not easy to adjust the pulse period.

Thus, the "Rotary Injection Vibrating Injection Apparatus" of the developed patent 10-1179241 is disclosed.

The arrangement is such that not only the period of the pulse can be very short, but also the period of the pulse can be easily controlled, so that the injection material can be supplied and injected with the pulse. .

The problem with the above configuration is that when the injection material flowing into the injection material inflow pipe is discharged through the injection material flow path through the injection material flow path, the injection material is discharged with the pressure applied from the injection material inflow pipe, The injection pressure can not be controlled by itself and the injection pressure of the injection material must be finely changed according to the state of the ground layer. Due to the nature of the grouting, it is difficult to inject the material in accordance with the field conditions of the ground layer And the effect of the pulse is deteriorated when the distance from the rotary material vibrator to the injection packer for injecting the injection material is increased.

1. Korean Patent Registration No. 10-1179241: Rotary Injection Vibration Injection Device 2. Domestic patent registration No. 10-0538316: Method of ordering and reinforcement grouting using intermittent compressed air and its apparatus 3. Domestic patent registration No. 10-0981007: Grouting system and control method thereof

SUMMARY OF THE INVENTION The present invention has been developed in order to overcome the above problems, and it is an object of the present invention to provide a method and apparatus for generating strong compressed air inside a water inlet chamber of an impact type injection grouting apparatus for filling an injection material (grouting material) The efficiency of the discharge pressure drops sharply when the conventional devices are moved away from the injection packer. However, in the present invention, the axial pressure is generated immediately before the injection This allows the injection pressure to be adjusted to suit the characteristics of the stratum without such problems.

In particular, microcracks in clay or rock layers such as reservoirs were difficult to penetrate the grouting material, and the micropores and cracks were relaxed by applying a certain pressure to the voids and crevices of the stratum cores, effectively pushing the foreign substances in the voids and crevices Since the infusion material is infiltrated, the injection efficiency is greatly improved compared with the conventional method.

In addition, it sometimes occurs that the injection material is used excessively because cracks are connected to the inside and the outside of the structure or no cavity is found. In this case, even when the agent is added to the cement milk for viscosity increase so as to prevent the material separation from occurring, the present method is also very useful.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

" 형상으로 형성되고;
상기 주입재 유입관(21)의 일측에는 상기 주입재 보관함(120)에 연결된 리턴관(130)이 연결되고, 상기 리턴관(130)의 일측에는 상기 수장실(20) 내부로 주입재(110)가 주입되어 상승할 때, 압축되는 공기(80)의 압력을 측정하여 수장실(20)의 내부 공기압력이 원하는 압력이상 걸리면 주입재(110)가 주입재 보관함(120)으로 자동 리턴되게 하도록 토출압조절 및 압력 유지장치(34)가 설치되며;
상기 수장실(20) 하부에 배출구(23)가 형성되고, 장치의 이동을 편리하게 하기 위한 바퀴(25) 및 주입재 주입시 장치의 떨림을 방지하기 위한 접이식 지지대(24)가 설치되는 것을 특징으로 한다.
The impact injection grouting apparatus 100 using the compressed air filling and discharge pressure regulating apparatus according to the present invention is characterized in that the injection inlet grouting apparatus 100 for injecting and discharging the injected material 110 subjected to the pressure by the pressurizing pump 10, And the inflow pipe 22 is formed to face each other and the air 80 inside the inflow pipe 20 is raised to the upper side by the inflow material 110 flowing into the inflow chamber 20 along the inflow pipe 21 An air compression plate 30 formed in the inside of the cylinder so as to apply pressure to the injection material 110 so as to be compressed, and a pressure sensor And an open / close valve (60) connected to the motor (50) driven by the switch (33) and driven inside the injection material discharge pipe (22) so that the injection material (110) When the injection packer is connected to the injection material discharge pipe 22 Configuration, and;
The opening and closing valve 60 is opposed to each other with a through hole 61. The opening and closing valve 60 receives the power of the motor 50 and rotates horizontally while the through hole 61 is in close contact with the inlet material discharge pipe 22, , The filling material discharge pipe (22) is closed and the filling material discharge pipe (22) is opened when the through hole (61) is located in the passage of the filling material discharge pipe (22);
An air pressure gauge 70 is formed in the control box 35 of the water retention chamber 20 so that the pressure of air compressed when the injection material 110 is injected into the water retention chamber 20 can be measured;
The injection material discharge pipe 22 has one end penetrating into the water retention chamber 20 and the other end extending to the outside,

Shaped "
A return pipe 130 connected to the injection material storage box 120 is connected to one side of the injection material inflow pipe 21 and the injection material 110 is injected into the water retention chamber 20 at one side of the return pipe 130. The pressure of the air 80 to be compressed is measured so that the inflow of the inflow material 110 to the injection material storage box 120 is automatically adjusted so that the inflow material is automatically returned to the infusion material storage box 120 A retaining device 34 is installed;
A discharge port 23 is formed in the lower portion of the water collecting chamber 20 and a wheel 25 for facilitating the movement of the apparatus and a folding support 24 for preventing the apparatus from shaking when injecting the material are installed do.

delete

delete

delete

delete

delete

In the present invention having the above-described structure, the injection material introduced into the water inlet chamber of the impact type injection grouting apparatus compresses the air, and the compressed air thus generated regulates the discharge pressure so that the injection material periodically penetrates into the ground So as to improve the injection efficiency. Particularly, it has been difficult to penetrate the micropores and cracks in the region composed of the clay and the rock layer such as the reservoir. By the constitution of the present invention, the pores and the gaps of the ground layer are impacted at a constant pressure, And the injection material is filled by effectively pushing the foreign substances in the pores and crevices of the stratum, so that the injection efficiency is greatly improved and the structure is stabilized more than the conventional method. In addition, it sometimes occurs that the injection material is used excessively because cracks are connected to the inside and the outside of the structure or no cavity is found. In this case, the method can be very useful even when the cement milk is added with a medicine for viscosity increase so as not to cause material separation.

1 is a cross-sectional view of an impact injection grouting apparatus using compressed air filling and discharge pressure control apparatus according to the present invention,
FIG. 2 is an enlarged cross-sectional view of a closed state of an opening / closing valve installed in a discharge pipe of a shock injection grouting apparatus using compressed air filling and discharge pressure regulating apparatus according to the present invention.
3 is an enlarged cross-sectional view illustrating an open state of an open / close valve installed in a discharge pipe of an impact type injection grouting apparatus using compressed air filling and discharge pressure regulating apparatus according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of an impact injection grouting apparatus using compressed air filling and discharge pressure regulating apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

When micro cracks, uneven settlement and cavities are confirmed during the process of reservoir and seawall construction and port construction, grouting works to fill gaps and cavities by injecting injection material (grouting material) such as cement mortar, paste, .

The construction of the present invention for performing grouting as described above first produces an injection material 110 such as a cement mortar, a paste, and a suspension. As shown in FIG. 1, the impact injection grouting apparatus 100 for filling the produced injection material 110 with cavities or fine gaps generated in the ground can be constructed by using impact injection grouting A filling material inlet pipe 21 capable of introducing the filling material 110 into the receiving chamber 20 of the apparatus 100 is mounted on one side of the receiving chamber 20.

A filling material discharge pipe 22 for discharging the filling material 110 flowing into the filling material inflow pipe 21 is mounted on the other side of the receiving room 20.

A U-shaped air compression plate 30 is formed in the interior of the water retention chamber 20 so as to form a space 31 so that pressure is applied to the inflow material 110 flowing into the water retention chamber 20 And connected to the end of the injection material inlet pipe (21).

Therefore, when the injection material flows in the space 31 of the air compression plate 30 formed inside the water-holding chamber 20 with pressure from the pressurizing pump, the injection material swirls and the air inside the water supply chamber 20 So that compressed air can be generated by the air being injected from the bottom of the water retention chamber 20 so that the air and the injection material are not directly mixed and the air is collected at the upper portion. The injected material 110 is accumulated on both sides of the air compression plate 30 to compress the air 80 inside the water storage chamber 20 to the upper side.

The return pipe 130 connected to the injection material storage box 120 is connected to one side of the infusion material inlet pipe 21 and the infusion material inlet pipe 21 is connected to one side of the return pipe 130, The pressure of the air 80 to be compressed is measured so that the inflow material 110 is automatically returned to the injection material storage box 120 when the internal air pressure of the inflow chamber 20 is exceeded by a predetermined pressure And the discharge pressure can be adjusted by controlling the discharge pressure and the pressure holding device 34. [

delete

An opening / closing valve 60 is mounted on the axis 51 of the motor 50 driven by the timer 40 and the discharge volume rotation adjustment volume switch 33 in the injection material discharge pipe 22.

The opening and closing valve 60 is formed to be vertically in close contact with the injection material discharge pipe 22 so as to be horizontally rotatable by the shaft 51 of the motor 50. In addition, The through hole 61 is pierced.

That is, when the open / close valve 60 receives the power of the motor 50 and rotates horizontally in the injection material discharge pipe 22, the through hole 61, which is punched against the open / close valve 60, The injection material discharge pipe 22 is closed and the injection material discharge pipe 22 is opened when the injection material discharge pipe 22 is positioned on the passage side of the injection material discharge pipe 22. [

An air pressure gauge 70 for measuring the pressure of the air 80 is provided in the control box 20 of the water retention chamber 20 when the injection material 110 compresses the air 80 in the water retention chamber 20. [ And a discharge port 23 is formed in the lower portion of the water retention chamber 20 so as to be cleaned after the water retention chamber 20 is used.

At this time, the air pressure and the discharge pressure are adjusted according to the construction specifications, but the air pressure may be set according to the site conditions. The range of the air pressure is not set, but it is usually 1 to 10 kgf / cm2.

Further, a wheel 25 and a foldable support 24 are formed below the water-supply chamber 20 for convenience of installation and movement.

Further, the injection material discharge pipe 22 is configured to discharge to the inlet side of an injection packer (not shown in the figure).

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

As shown in FIG. 1, after the injection material 110 stored in the injection material storage box 120 is stored, the injection material 110 stored in the injection material storage box 120 is pumped by the pressure pump 10. At this time, the injection material 110 flows into the inside of the filling material inflow pipe 21 mounted on one side of the water compartment 20 and accumulates therein. The inflow pressure gauge 90 mounted on the inflow material inflow pipe 21 also checks inflow pressure of the inflow material 110 pumped to the high pressure in the pressurization pump 10.

In this case, the inflow pressure gauge is for measuring the pressure of the injection material 110 that enters the water retention chamber 20, and there is no need to set a specific inflow pressure. If the inflow pressure is large, Fill quickly.

The injection material 110 flowing into the interior of the resin compartment 20 flows into the inner space 31 of the air compression plate 30 having an inverted U shape connected to the end of the injection material inlet pipe 21, And pressure is applied.

The pressurized injection material 110 is raised to both sides of the air compression plate 30 to compress the air 80 inside the water retention chamber 20. At this time, 22 are closed.

The air 80 in the water retention chamber 20 receives a certain pressure from the upper portion of the water retention chamber 20 due to the inflow of the injection material 110. At this time, a predetermined time is set in the timer 40 to set the cycle of the opening / closing valve 60 driven in the inlet material discharge pipe 22 when a predetermined pressure is reached in the air 80 in the water storage chamber 20. Therefore, the air 80 compressed by the predetermined pressure in the water generating chamber 20 discharges the filler 110 when the open / close valve 60 is opened, and the open / close valve 60) is adjusted so that it is injected into the gap or gap gap of the ground.

The injection material 110 is discharged from the impact type injection grouting apparatus 100 repeatedly at an inner axial pressure with a time lag.

The process of discharging the injecting material 110 injected into the resin chamber 20 of the impact injection grouting apparatus 100 through the injecting material discharge pipe 22 will be described in detail with reference to FIGS.

2 shows a state in which the open / close valve 60 mounted inside the injection material discharge pipe 22 is closed and closed so that a certain pressure can be applied to the air 80 while the injection material 110 flows into the water compartment 20, The motor 50 connected to the valve 60 is not driven and is in a stopped state.

Therefore, since the through holes 61 formed in the opening and closing valve 60 are closely adhered to both sides of the injection material discharge pipe 22, the injection material 110 is not discharged to the outside but is stored in the water storage chamber 20, (80) is compressed.

3 shows that when the air 80 stored in the water compartment 20 is compressed by the upward pressure due to the inflow of the infusion material 110 and reaches the preset air pressure, the timer 40 And the motor 50 is driven. The motor 50 is constructed such that the opening and closing valve 60 connected to the shaft 51 of the motor 50 cooperates with the passage of the injection material discharge pipe 22 by making the through- 110 penetrate into the cavity or gap of the ground through an injection packer (not shown) connected to the injection material discharge pipe 22 along the injection material discharge pipe 22.

In addition, after the impact type injection grouting apparatus 100 is used, the injection material injected for cleaning the interior of the water retention chamber 20 is discharged through the discharge port 23 formed in the lower portion of the water retention chamber 20 to clean the interior .

Although the present invention having been described above has been described with reference to a limited number of embodiments, it is to be understood that the present invention is not limited thereto and that various changes and modifications may be made without departing from the spirit and scope of the present invention by those skilled in the art. Various modifications and variations are possible within the scope of the appended claims.

10. Pressure pump 20. Drawing room
21. Injection material inlet pipe
23. Outlet 24. Support
25. Wheels 30. Air Compression Plate
31. Space 32. on / off switch
33. Discharge volume adjustment volume switch 34. Discharge pressure adjustment and pressure maintenance device
35. Control box 40. Timer
50. Motor 51. Axis
60. Opening and closing valve 61. Through hole
70. Air pressure gauge 80. Air
90. Inflow pressure gauge 95. Discharge pressure gauge
100. Impact injection grouting device 110. Injection material
120. Infusion box 130. Return tube

Claims (6)

A filling chamber 20 formed by opposing the filling material inlet pipe 21 and the filling material discharge pipe 22 for introducing and discharging the injected material 110 subjected to the pressure by the pressurizing pump 10 and the filling material inlet pipe 21 Formed in the inside of the air compression plate 30 (hereinafter referred to as " U ") so as to apply pressure to the injection material 110 so that the air 80 inside the injection material 110 flows into the water- And a motor 50 driven by a timer 40 and a discharge volume rotation adjustment volume switch 33 when pressure is applied to the air inside the water retention chamber 20, And an open / close valve (60) that is driven in the injection material discharge pipe (22) so as to be able to discharge with a time lag by the injection pump (22);
The opening and closing valve 60 is opposed to each other with a through hole 61. The opening and closing valve 60 receives the power of the motor 50 and rotates horizontally while the through hole 61 is in close contact with the inlet material discharge pipe 22, , The filling material discharge pipe (22) is closed and the filling material discharge pipe (22) is opened when the through hole (61) is located in the passage of the filling material discharge pipe (22);
An air pressure gauge 70 is formed in the control box 35 of the water retention chamber 20 so that the pressure of air compressed when the injection material 110 is injected into the water retention chamber 20 can be measured;
The injection material discharge pipe 22 has one end penetrating into the water retention chamber 20 and the other end extending to the outside,

Shaped "
A return pipe 130 connected to the injection material storage box 120 is connected to one side of the injection material inflow pipe 21 and the injection material 110 is injected into the water retention chamber 20 at one side of the return pipe 130. The pressure of the air 80 to be compressed is measured so that the inflow of the inflow material 110 to the injection material storage box 120 is automatically adjusted so that the inflow material is automatically returned to the injection material storage box 120 A retaining device 34 is installed;
A discharge port 23 is formed in the lower portion of the water collecting chamber 20 and a wheel 25 for facilitating the movement of the apparatus and a folding support 24 for preventing the apparatus from shaking when injecting the material are installed And a discharge pressure adjusting device. delete delete delete delete delete

Images