KR20160090696A - Apparatus and method for soft soil improving ungi automated management system - Google Patents

Abstract

The present invention relates to an apparatus and a method for improving soft soil of an intermediate depth using an automated management system, so as to improve the utility of equipment and construct ability. According to the present invention, an apparatus for improving soft soil of an intermediate depth using an automated management system comprises: a solidification agent supply means (10); a compressed air supply means (20); a stirring device (100); a sensor unit (200); a drive unit (400); and a server (500). The stirring device is composed of an excavation unit and a stirring unit. The excavation unit has a stirring rod (110) and an auger drill. The stirring unit comprises an upper side stirring blade (130), a lower side stirring blade (140), a lower side spray hole (122), and an upper side spray hole (123).

Description

TECHNICAL FIELD [0001] The present invention relates to an apparatus and method for improving soft ground,

More particularly, the present invention relates to a method for improving the efficiency and construction of equipment by forming a ground improvement device (bulb) by mixing and agitating a fire and a local soil on a soft ground of a medium depth using small equipment, And an automatic management system that improves quality and performance through monitoring and automatic control of injection conditions, and a medium depth soft ground improvement apparatus and method.

In general, the improvement method of the soft ground is to improve and improve the soil improvement modifier in the soft ground by injecting and mixing cement fire or other fire into the soft ground, , Middle layer (3 ~ 10m) mixing treatment method and deep layer mixing treatment method (including high pressure injection system). Thin-layer mixing treatment method is about 1 ~ 2m from the ground surface and deep layer mixing treatment method is treatment for depth more than 10m.

Patent Document 1 (Registered Patent No. 10-0834923) discloses a method for manufacturing a cutting tool, which comprises compressed air, cutting water, a hardened material, and a high viscosity and high strength mortar injection port formed at an upper end thereof, And a high viscosity high-strength mortar discharge port communicating with the high viscosity high-strength mortar injection port is formed at the center of the lower end, wherein compressed air, cutting water, hardened material, and high viscosity high- Wherein the compressed air and the cutoff water discharge port are formed so as to inject compressed air and cutting water upward by about 5 ° in the horizontal direction and the settled material discharge port is formed in a horizontal direction , And the set material discharge port is formed so as to discharge from the compressed air and the cut-off water discharge port Relates to a predetermined distance from the soft ground improvement in a position device, it is to improve the soft ground, may make the depth of soft construction soil improvement material according to the settable material in the ground.

Patent Document 2 (Registration No. 10-0587842) discloses an endless track vehicle having a driver's seat and a power unit which are mounted on a wide track to minimize the grounding pressure and are rotated 360 degrees around a wide track, A casing having a vertically oriented leader, a casing having upward and downward movements in the longitudinal direction of the leader and a shoe that can be opened and closed at its distal end, a screw formed on the outer circumference of the leader, and a rotary gear attached to the top, A motor for rotating the casing in the forward and reverse directions by forming a motor gear to be engaged with the rotary gear in the stirring rod to rotate the casing in the forward and reverse directions; A hopper formed on the upper portion of the casing for supplying the reinforcing member to the inside of the casing, And a frame for fixing the motor and the hopper. It is possible to improve the soft ground of the deep layer, and it is difficult to uniformly mix the reinforcing member, so that the soft ground I can not build it firmly.

In the past, the deep mixing equipment has been used to improve the soft ground of middle depth. When the deep mixing equipment is used, the deep mixing equipment is very large and heavy, There is a problem of wasting construction cost such as causing settlement of soft ground and generating electric power loss for driving, so that middle layer mixed processing equipment and technique suitable for modifying soft ground of intermediate depth are required.

Patent Document 3 (Japanese Patent No. 3260337) has been improved in accordance with this demand.

Patent Document 3 discloses a method of mixing a soft soil of a soil with a discharging means for discharging the modifying material and a mixing stirrer for mixing and stirring the discharged modifying material with soft soil of the ground, Wherein the discharging means includes a lower discharge port portion provided at a lower position of the mixing agitator and at least one upper discharge port portion provided above the lower discharge port portion, wherein the lower discharge port portion and the upper discharge port portion And a dispensing means provided in the supply pipe, wherein the modifying material supplied to the supply pipe is supplied to the upper discharge port portion and the upper discharge port portion via the dispensing means, And is distributed to the lower discharge port portion, and the middle layer mixing treatment method However, since the ground improvement is dependent on the operator's experience, it is not possible to construct an optimum ground remediation body, and the structure is complicated from the viewpoint of the equipment, but a uniform stirring and mixing can not be achieved.

Registration No. 10-0834923 Registration No. 10-0587842 Japanese Patent No. 3260337

Disclosure of Invention Technical Problem [10] The present invention has been made to solve the above problems, and it is an object of the present invention to provide an apparatus and a method for constructing a soil improvement device (bulb) by mixing and agitating a fire and a local soil in a medium- And to provide an intermediate depth soft ground improvement apparatus and method using an automatic management system that improves quality and performance through monitoring and automatic control of the injection situation.

The medium depth soft ground improvement apparatus using the automation management system according to the present invention comprises: a high fire supply means (10) for supplying a high fire; Compressed air supply means for supplying compressed air; And is connected to the arm of the backhoe so as to separate and rotate in both directions, and injects the compressed air supplied from the compressed air supply means while rotating through the drive source into the soft ground, An agitator for agitating the pile type soil amendment material at an intermediate depth of the soft ground by stirring and injecting the soil; A sensor unit for detecting an injection condition of a solid fire injected through the stirrer; A driving unit for driving the stirrer and the solidifying means; And a server for automatically controlling the driving unit on the basis of the sensed value by the sensor unit, wherein the agitator includes an excavation unit for excavating the soft ground and disturbing the local soil, And a stirrer for stirring the fire, wherein the excavator includes a stirring rod which is rotated by receiving the rotational force of the driving source and is provided with a flow passage for supplying compressed air or high-pressure fire to the inside thereof, and an auger drill mounted on a front end portion of the stirring rod And the stirring section is mounted on the stirring rod at different heights to revolve together with the stirring rod and to stir the high-fire and the local soil by rotation, and a lower side stirring blade, a lower side stirring blade, A lower side injection hole arranged at a lower portion of the upper side stirring blade for injecting and discharging a high fire, And the upper side stirring blade and the lower side stirring blade are respectively fixed to the stirring rod at different heights and are fixed to the rotating shaft and rotate together with the rotating shaft, And a second stirring blade which is formed in a curved shape and which is arranged at the periphery of the first stirring blade and which rotates together with the rotation shaft and stirs the fire and the local soil .

According to the medium depth soft ground improvement apparatus and method using the automatic management system according to the present invention, a compact stirrer is mounted on a backhoe of an infinite orbit, and an intermediate depth soft ground is formed by using the tip drilling head of the stirrer and compressed air After rapidly excavating and injecting a fire, uniformly mixing the fire and the local soil through the rotation and revolving of the stirring wing, the ground reinforcements with uniform strength are uniformly constructed so that the soft ground of intermediate depth can be securely grounded In addition, by monitoring the infusion condition, the operator can operate under optimum conditions to shorten the air and protect the equipment. In addition, it is possible to install unskilled operators through automatic control.

The present invention has the effect of improving the soft ground of all intermediate depths without any geographical limitation because it can be installed in urban areas and public places by the non-compacting method.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall configuration diagram of an intermediate depth soft ground improvement apparatus using an automation management system according to the present invention; FIG.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an automatic soft ground improvement apparatus using an automation management system, and more particularly,
3 is an enlarged view of a stirrer applied to a medium depth soft ground improvement apparatus using an automation management system according to the present invention.
4 is a plan view showing upper and lower stirring blades of an agitator applied to an apparatus for modifying soft ground of medium depth using an automation management system according to the present invention.
5 is a process diagram of a medium depth soft ground improvement method using an automation management system according to the present invention.

As shown in FIG. 1, the medium-depth soft ground improvement apparatus using the automation management system according to the present invention includes a high-fire supply means 10 for supplying a high-fire (known solid- ; Compressed air supply means (20) for supplying compressed air; And is connected to the arm 2 of the backhoe 1 having an infinite orbit so as to separate and rotate in both directions and injects the compressed air supplied from the compressed air supply means 20 while rotating through the drive source into the soft ground, An agitator (100) for injecting a solid fire supplied through the solidifying means (10) and agitating a local soil (gravel or the like of the ground) to construct a columnar soil modifier at an intermediate depth of the soft ground; Injection monitoring means (sensor unit, monitor) for extracting and providing data to detect and monitor the injection condition of the harsh fire injected through the stirrer 100; (For example, the height of the stirrer 100 is 3 to 5 m) in accordance with the soft ground of medium depth (for example, 3 to 10 m).

The hot fire supply means 10 includes a tank 11 in which a fire is stored, a water tank 12 in which water for mixing hot fire is stored and a water tank 12 in which a fire is supplied from the tank 11, A pump 14 for feeding a mixed fire through the mixer 13 and a supply pipe 15 for supplying the mixer 13 with a solid fire pressure fed through the pump 14, ), And can be installed on the ground or mounted on a vehicle.

The compressed air supply means 20 is constituted by an air compressor and a compressed air supply pipe for supplying the compressed air fed by the air compressor to the agitator 100. Since the compressed air will not be injected when supplying a high- It is also possible to use the air supply pipe 15 together with the high-fire supply pipe. Compressed air improves the workability by pushing the soil and so on of the ground when excavating the soft ground. The compressed air supply means 20 is selected and used as required.

As shown in FIG. 2, the injection monitoring means allows the operator to confirm the injection condition of the high-temperature and compressed air, the driving state of the stirrer 100, and the depth of the ground remover, And a monitor 300 for outputting the information of the unit 200 and the information of the driving unit.

The sensor unit 200 includes a flow rate sensor for sensing the amount of the high-pressure fire supplied through the high-pressure supply unit 10, a pressure sensor for detecting the discharge pressure of the compressed air supplied through the compressed air supply unit 20, A rotation sensor for sensing the number of revolutions of the agitator 100, a depth sensor for measuring the intrusion depth of the agitator 100, a position sensor, a load sensor, a torque sensor, a verticalness sensor, a vibration sensor, a metering sensor, , A mixer load cell, an agitator load cell, and the like. The sensor unit 200 is not limited to the sensors but may be freely changed.

For example, the flow rate sensor is mounted on the high-pressure supply pipe 13 and installed on the discharge end of the pump 14 or on the supply pipe 15 to measure the amount of high-pressure fire.

The pressure sensor is mounted on an air compressor or feed pipe to measure the compressed air pressure.

The rotation speed sensor measures the rotation speed of the stirring rod and the rotor applied to the stirrer 100.

The depth sensor measures the depth of the ground remover by measuring the depth at which the bottom end of the stirrer 100 is inserted.

The monitor 300 is mounted in the driver's seat of the backhoe 1 and displays the data sensed by the sensor unit on the screen, and each data is digitized by time and output or displayed in a graph.

The drive unit 400 of the present invention includes a manual control panel (button type, touch panel type), an edge guide motor, an edge data valve, a hose pump, auger drive, plate drive, vibrator drive, injection switch, pump, mixer motor, . The structures described as the driving unit 400 are those used in the field of soil improvement.

The server 500 controls the driving unit 400 on the basis of the value sensed by the sensor unit 200. For this control, the reference data needs to be set.

Since the reference data vary depending on various conditions such as the ground strength of the soft ground and the person skilled in the art can carry out it through the publicly known technology, it is not limited to a specific numerical value and the operator can input the reference data [high fire flow rate Flow rate), compressed air pressure, number of revolutions].

The server 500 compares the current data sensed in real time by the sensor unit with predetermined reference data and controls the driving of the driving unit 400 when the current data is out of the reference data. If the driving pressure of the pump is higher than the reference pressure, the operation of the pump is controlled by the low speed operation. If the flow rate of the high fire is large, the operation of the pump is controlled at low speed.

In addition, an alarm may be provided so that the operator can confirm the automatic control by the server 500. Preferably, the alarm is a warning light (blue light in normal state, red light in abnormal state) that can confirm the operation state of the driving unit 400. Therefore, the operator can manually control each device by checking whether or not each device is normal .

The data sensed by the sensor unit 200 and the state of the driving unit 400 under the control of the server 500 are stored in a memory and used as management data or the like.

As shown in FIGS. 1 and 3, the stirrer 100 is divided into a drilling section and a stirring section.

The excavating unit includes an agitating rod 110 and an auger drill 120 mounted on the lower end of the agitating rod 110 for excavating the soft ground while rotating together with the agitating rod 110.

The stirring rod 110 is connected to the motor so as to be able to transmit power, is rotated by the rotational force of the motor, and is hollow so as to be able to inject a high-pressure fire (including compressed air when compressed air is applied) through the inside thereof.

That is, inside the stirring rod 110, a tubular flow path 111 (integral or separate tube) is formed in the stirring rod 110 connected to the supply pipe 15.

The auger drill 120 may be in the form of, for example, a spiral screw, and may be integrally formed or detachably coupled to the stirring rod 110 and may be rotated together with the stirring rod 110, Excavate the soft ground to the depth of the middle layer.

The auger drill 120 is provided with a lower side injection hole 122 communicably connected to the flow path 111 to inject a high fire.

The lower side injection hole 122 may be formed in only one place which is aligned with the flow passage 111, or may be formed radially so as to be injected through the lower portion and the peripheral portion.

In addition, an upper side injection hole 123 may be provided together to increase the supply amount of the high-temperature fire and improve the stirring efficiency. Since the upper side injection hole 123 is positioned higher than the lower side injection hole 122, the lower side injection hole 122 is in the excavation hole, but the upper side injection hole 123 can be disposed on the ground, It is preferable that the upper side injection hole 123 is opened and closed independently of the lower side injection hole 122 since a supply of fire may occur.

The upper side injection hole 123 is formed at the periphery of the stirring rod 110 at two or more intervals along the circumferential direction at regular intervals.

The agitating unit is configured to stir the local soil to excite the local soil to uniformly mix the soil and to uniformly mix the local soil and the soil. The agitating unit can be rotated independently of the agitating rod 110 at the periphery of the agitating rod 110 The two-layer structure of the upper side stirring blade 130 and the lower side stirring blade 140 supported is preferable.

The upper side stirring vane 130 and the lower side stirring vane 140 are disposed between the upper side injection hole 123 and the lower side injection hole 122 to agitate the local fire and the fire which is sprayed from the upper and lower sides.

The upper side stirring vane 130 includes a rotating shaft 131 supported by the stirring rod 110 and a first stirring member 132 which is fixed to the rotating shaft 131 and rotates together with the rotating shaft 131, And a second stirring blade 133 which is formed in a curved shape and is disposed at the periphery of the first stirring blade 132 and rotates together with the rotation axis 131 to stir the fire and the local soil.

The rotating shaft 131 is rotatably supported by the stirring rod 110 and rotates by receiving a rotating force through the motor. The motor is installed inside or outside of the stirring rod 110 and is directly connected to the rotating shaft 131 And is connected to the rotating shaft 131 through power transmission means.

The first stirring blade 132 is in the form of a pointed crescent moon as it goes toward the end, and its center is symmetrically connected to the rotating shaft 131, that is, about the rotating shaft 131 and may be straight. However, in order to increase the stirring efficiency, It is preferable to bend at an angle.

The first stirring blade 132 may be formed longer than the second stirring blade 133 from the rotating shaft 131.

The first agitating blade 132 is disposed in a direction transverse between the plurality of second agitating blades 133 to enable uniform agitation.

The second stirring blade 133 is formed in a curved shape and has two or more (two shown in the figure) at a predetermined interval along the circumferential direction on the circumference of the rotating shaft 131. For example, The two second stirring blades 133 are formed on both sides of the spokes 134 coupled to the rotating shaft 131 by the center of the spokes 134 being coupled to the rotating shaft 131, And is formed symmetrically.

At least one stirring tip 134 protrudes from the second stirring blade 133 on the opposite side of the rotating shaft 131. A plurality of stirring tips 134 are preferably formed at regular intervals to agitate the local fire and the fire in a place where the agitating force of the second stirring blade 133 is insufficient.

The stirring tip 134 is configured to be removably assembled to the second stirring blade 133 through screwing or the like to facilitate maintenance.

The first stirring blade 132 having such a structure is disposed outside the second stirring blade 133 (farther from the stirring rod 110) and agitates in a wide stirring range, thereby increasing stirring efficiency.

The first and second stirring blades 132 and 133 may be integrally formed without being separated from each other.

The lower side stirring blade 140 has the same constitution as the upper side stirring blade 130, that is, the rotating shaft 141, the first stirring blade 142 and the second stirring blade 143 (stirring tip 144).

The upper side stirring vane 130 and the lower side stirring vane 140 are disposed at different positions to allow uniform stirring and a wide range of stirring. For example, the upper side stirring vane 130 and the lower side stirring vane 140 can be agitated, And the local soil is agitated again by the lower side stirring vane 140. In addition, the high-speed fire and the local soil agitated by the lower side stirring vane 140 are stirred again by the upper side stirring vane 130, Stirring is possible. The positions of the upper side stirring blade 130 and the lower side stirring blade 140 vary depending on the positions of the rotating shafts 131 and 141. By arranging the rotating shafts 131 and 141 so as to be orthogonal to each other, 130 and the lower side stirring vane 140 are arranged alternately.

The upper stirring blade 130 and the lower stirring blade 140 are revolved by the rotation of the stirring rod 110 and rotate through the rotating shafts 131 and 141 so that the stirring speed is fast and uniform stirring This is possible.

Further, a vibrator for imparting vibration to the upper and lower stirring vanes 130, 140 or the stirring rod 110 may be included.

Referring to FIG. 5, a medium depth soft ground improvement method using the automation management system according to the present invention will be described. In the present invention, it is possible to inject a high-fire at the same time as the excavation, to inject a fire in the drawing process after the excavation, and to inject a fire in the excavation and drawing, , Which prevents the subsequent process from being carried out smoothly due to the hardening of the fire which is injected during the excavation process.

(S10) Excavation.

The auger drill 120 is lowered while the auger drill 120 is rotated by the rotation of the agitating rod 110 in accordance with the position for the construction of the ground remedies to excavate the soft ground. The compressed air is supplied to the lower side injection hole 122 along the flow path 111 inside the agitation rod 110 and is supplied to the lower side injection hole 122 through the high pressure . Therefore, the soft ground is excavated by the physical force of the auger drill 120 and the injection pressure of the compressed air, thereby shortening the excavation time. At this time, compressed air can also be injected through the upper side injection hole 123, and the compressed air injected through the upper side injection hole 123 functions to enlarge the diameter of the excavation hole.

If no compressed air is applied, excavation is performed only by the auger drill 120.

In this process, the upper and lower stirring blades (130, 140) of the agitating part are rotated and revolved to disturb and mix the local soil excavated by the auger drill (120) to uniformly mix with the subsequent fire, Thereby reducing the load on the ground 120 and shortening the excavation time and preventing the collapse of the soft ground.

Prior to the excavation process, the reference data is set through investigation of the soft ground.

(S20) High fire injection and drawing.

The excavator 100 is excavated in accordance with the depth of the ground remover and the excavator 100 is poured into the excavator.

The solidified fuel supplied by the solidifying means 10 passes through the flow path 111 inside the agitating rod 110 and then passes through the lower side injection hole 122 and the upper side injection hole 123 of the auger drill 120, And the upper and lower stirring blades 130 and 140 are driven by their motors in one direction or both directions together with the stirring rod 110 in one direction or both directions It stirs fire and local soil while revolving.

The first agitation blade 132 of the upper side agitation blade 130 is rotated by the rotation axis 131 to divide the high fire and the localized soot while the second agitation blade 133 is divided by the first agitation blade 132 Mix the fire with the local soil.

The first and second stirring blades 142 and 143 of the lower side stirring vane 140 also function in the same manner as the upper side stirring vane 130.

The upper side stirring blade 130 and the lower side stirring blade 140 are used to mix the fire and the local soil with each other and the mixture mixed by the upper side stirring blade 130 is mixed with the upper side stirring blade 130, The mixture is stirred by the lower side stirring vane 140 while being mixed by the lower side stirring vane 140. Then, the mixture is stirred by the upper side stirring vane 130 while being pumped up by the upper side stirring vane 130 .

Stir until the auger drill (120) has risen to the ground (injection of high fire is stopped before the upper upper side injection hole (123) goes out onto the ground) and stir with the local soil.

Such injection and withdrawal of the fire can be done step by step.

When the middle ground improvement method according to the present invention is completed, a column type ground improvement device is completed in the ground of the soft ground (S30).

During this process, the sensor unit 200 senses the data of each device, and the sensed value is displayed on the monitor 300, so that the operator monitors all the infusion conditions. Therefore, Install a solid ground improvement agent on the soft ground of depth.

The server 500 receives the current data sensed by the sensor unit 200 and compares the current data with the reference data to control the flow rate of the fire when the current data is out of the reference data, So that all the ground remedies are constructed under uniform conditions.

1: backhoe, 10: high fire supply means
20: compressed air supply means, 100: stirrer
110: stirring rod, 120: auger drill
130, 140: upper and lower stirring blades, 200:
300: monitor, 400:
500: Server

Claims (6)

A high fire supply means (10) for supplying a high fire;
Compressed air supply means (20) for supplying compressed air;
And is connected to the arm of the backhoe so as to separate and rotate in both directions, and injects the compressed air supplied from the compressed air supply means while rotating through the drive source into the soft ground, An agitator (100) for constructing a columnar ground remover at an intermediate depth of the soft ground by stirring and injecting the soil;
A sensor unit 200 for sensing an injection condition of a high-pressure fire injected through the stirrer;
A driving unit 400 for driving the stirrer and the high-fire supply unit;
A server 500 for automatically controlling the driving unit based on the sensing value of the sensor unit;
And a monitor (300) for displaying the sensed state of the sensor unit and the driving state of the driving unit and providing the sensed state to the operator,
The stirrer includes an excavation unit for excavating the soft ground and disturbing the local soil, and an agitator for agitating the excavated soil by the excavation unit,
The excavator includes a stirring rod 110 having a flow path 111 through which a high-fire or pressurized air is supplied and rotates in response to a rotational force of a driving source, a stirring rod 110 mounted on a distal end of the stirring rod, And an auger drill (120) having a lower side injection hole,
The stirring unit includes upper stirring blades (130) and lower stirring blades (140) mounted on the stirring rods at different heights and revolving together with the stirring rods and stirring a high fire and a local soil by rotation, A lower side injection hole 122 disposed at the lower portion of the lower side stirring blade for injecting and discharging a high fire, and an upper side injection hole 123 disposed at the upper portion of the upper side stirring blade for injecting a high fire, Wherein the medium depth is at least one of the following: The stirring device according to claim 1, wherein the upper side stirring vane and the lower side stirring vane each have a rotating shaft (131, 141) supported at the stirring rod (110) at different heights, And first and second stirring blades 132 and 142 which are formed in a curved shape and are arranged around the first stirring blades 132 and 142 and are rotated together with the rotation axis, And a second stirring blade (133.1433). ≪ RTI ID = 0.0 > 11. < / RTI > [2] The apparatus of claim 1, wherein the first stirring blade is formed in a shape of a crescent moon pointed toward the end, the center being connected to the rotation shaft, the second stirring blade being curved, Wherein the at least one of the at least two soft ground improvement devices is an intermediate depth soft ground improvement device using an automated management system. 4. The apparatus of claim 3, wherein the second stirring blade is formed by one or more agitating tips (134, 144) protruding from opposite sides of the rotating shaft.  The stirring device according to claim 4, wherein the upper side stirring blade and the lower side stirring blade are arranged on both sides of the stirring rod while the rotation shafts are arranged so as to be perpendicular to each other, and the first and second stirring blades So that they are formed at different positions that do not overlap with each other. An intermediate depth soft ground improvement method using an intermediate depth soft ground improvement apparatus using an automation management system according to claim 1,
A first step of excavating the soft ground by driving the agitator 100 applied to the medium depth soft ground improvement apparatus using the automated management system and spraying the compressed air through the compressed air supply means;
The injection of the compressed air is stopped after the completion of the excavation through the first step, and a high-pressure fire is supplied to the stirrer through the high-fire injection means while the stirrer is pulled out to the ground, and the upper and lower stirring blades And a second step of constructing a pillar type soil amendment material in the ground of the medium depth soft soil by agitating the local soil excavated and disturbed in the first step with the solidification phase, The injection condition and the driving condition of the driving unit are sensed through the sensor unit applied to the medium depth soft ground improvement apparatus using the automation management system and the injection condition is provided to the monitor to the operator while the driving unit is automatically controlled through the server Medium - depth soft ground improvement method using automated management system.

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