KR102570024B1 - Paper drain board installing equipment with mandrel pressure measuring system using load cell - Google Patents

Abstract

The present invention provides a drain material placing device equipped with a load cell-based penetration force measurement system capable of improving the reliability of anchoring and correcting the target depth of the drain casing in real time according to the state of the ground.
The drain pouring device 1201 of the present invention includes a drain casing fixing holder 1203 configured to move up and down along a leader 1202, and a drain casing mounted on the drain casing fixing holder and having a through hole therein 1204, a reel device 1206 for supplying the drain material P through the through-hole of the drain casing, and a penetration force measurement system 1230 for the drain casing. In particular, the system for measuring the penetration force of the drain casing 1230 includes a wireless load cell 280 for measuring the pressure applied to the drain casing when the drain casing is pulled into or pulled out into the ground, and a depth measuring device 1225 for the drain casing. And, a control unit 1110 that compares and calculates the actual measurement data received from the depth measurer of the drain casing and the wireless load cell and the soil borehole data input from the outside, and a display unit 1115 that maps and displays the data that has been compared and calculated And, after reaching the target depth of the drain casing, when the penetration pressure of the drain casing is smaller than the penetration pressure of the soil borehole data, the drain casing is further penetrated.

Description

Paper drain board installing equipment with mandrel pressure measuring system using load cell}

The present invention relates to a drain material placement device for vertically inserting and burying a drain material used to improve soft ground or wetlands, etc. position system) and a load cell-based penetration force measuring system to effectively control the accuracy of drain material insertion and construction quality.

In general, the drain method is known as one of the methods for improving soft ground or wetlands.

The drain method is a general technique for strengthening the ground by discharging excess pore water contained in the soft ground.

The discharge of pore water in the soft ground using the drain method divides the work target area (A) into certain areas (A1, A2, A3, A4...) as shown in Figures 1 and 2, and drills a sample borehole for each divided area. According to the ground conditions obtained by the soil borehole data, a work specification indicating the insertion depth and insertion position of the drain material is prepared, and drain materials (P1, P2, P3, P4...) are installed in each partitioned area according to the specification. insert and construct

The drain material (P1, P2, P3, P4...) inserted into the ground is caused by the load pressure of the drainage layer 11 and the cover layer 10 laid on the soft ground 9 and the capillary action of the drain material. The pore water in the ground is discharged to the ground drainage layer 11, and eventually, as time passes, the soft ground 9 sinks and hardens, and the bearing capacity is strengthened.

However, when the drain material is inserted based on the soil borehole data obtained through a small number of samplings, the quality of the drain material insertion construction is degraded because the ground state does not match the borehole data at a certain point.

In order to improve the above problems, Korean Patent Publication No. 10-2008-0056353 discloses a depth measurement sensor for measuring the depth of penetration in equipment for constructing soft ground improvement work, and tension, compression or rotational force applied to the penetration casing pipe. Disclosed is a load measuring device composed of a measuring load cell or torque meter and a controller.

The main point of the conventional work measurement device is to correct the penetration amount by comparing soil borehole data obtained by sampling with data of a penetration force measurement device obtained during actual drain material insertion construction.

However, since the conventional work measurement device configured in the equipment for constructing soft ground improvement works focuses on reducing the error variable of measuring the pipe input, the efficiency of data comparison and analysis is low, and it is used as post-management data for construction. There are structural problems that cannot be utilized.

In addition, when the soft ground 9 is improved by using a paper drain board (P) as shown in FIG. 3, only the insertion depth of the drain casing 204 into which the drain material P is drawn into the ground is used as data. Floating phenomenon of the drain material (P) (after the drain material (P) is inserted into the ground, the end of the drain material is not anchored to the bottom of the depth by the anchor plate 12 and moves along the drain casing 204 in the direction of the arrow) There is a problem that the variable of the phenomenon) is not reflected in the data.

In addition, if the work target area is wide, the operator must mark the drain material insertion point in advance, so the work manpower and manpower are excessively required, and the operator directly marks the drain material insertion point depending on the work specification. There is a disadvantage that may lead to construction defects due to deviation of the insertion point and display errors.

Republic of Korea Patent Publication No. 10-2008-0056353

The present invention has been made to solve the above problems, and can automatically and accurately specify the insertion position of the drain material, and compare and analyze the soil borehole data for each construction point to determine the insertion position and depth of the drain casing immediately in the field. It is an object of the present invention to provide a drain material pouring device that can improve construction quality by enabling complementary construction.

Another object of the present invention is to promote the anchoring of the drain material and reduce the floating phenomenon of the drain material so that it can be used as construction quality improvement and follow-up management data.

In order to achieve the above object, the drain material placing apparatus of the present invention includes a drain casing fixing holder configured to be able to move up and down along a leader, a drain casing mounted on the drain casing fixing holder and having a through hole therein, and the drain A reel device for supplying drain material through the through-hole of the casing and a system for measuring the penetration force of the drain casing,

The system for measuring the penetration force of the drain casing includes a wireless load cell for measuring the pressure applied to the drain casing when the drain casing is pulled into or pulled out into the ground;

A control unit that compares and calculates actual measurement data received from the drain casing depth measurer, the drain casing depth measurer and the wireless load cell, and soil borehole data input from the outside; and a display unit that maps and displays the comparison calculated data. include,

After reaching the target depth of the drain casing, when the penetration pressure of the drain casing is smaller than the penetration pressure of the soil borehole data, the drain casing may be additionally penetrated.

In addition, the additional penetration of the drain casing is characterized in that it is made to a depth that reaches the penetration pressure of the soil borehole data.

In addition, it is characterized in that a satellite navigation device is installed in the drain material placing device.

In addition, it is characterized in that the anchoring depth measuring unit of the drain material is installed in the drain casing.

In addition, the anchoring depth measuring unit of the drain material is characterized in that it is configured to detect the departure of the anchor plate supporting the drain material from the end of the drain casing when the drain casing is pulled out.

In addition, the anchoring depth measuring unit of the drain material is characterized in that it includes at least a vibration device.

In addition, the vibration device is characterized in that it includes a contact sensing unit configured to be exposed to an end of the drain casing, and the contact sensing unit is configured to be in contact with the anchor plate.

In addition, the contact sensing unit is characterized in that composed of a pressure sensor.

In addition, it is characterized in that it is configured to compare and calculate actual measurement data received from the depth measuring device of the drain casing, the wireless load cell, and the anchoring depth measuring unit of the drain material with the soil borehole data.

The drain material placing device of the present invention includes a drain casing fixing holder configured to be able to move up and down along a leader, a drain casing mounted on the drain casing fixing holder and having a through portion therein, and a through portion of the drain casing. A reel device for supplying drain material through and a system for measuring the penetration force of the drain casing,

The penetration force measurement system includes a wireless load cell for measuring the pressure applied to the drain casing when the drain casing is pulled into or pulled out of the ground;

A control unit that compares and calculates actual measurement data received from the drain casing depth measurer, the drain casing depth measurer and the wireless load cell, and soil borehole data input from the outside; and a display unit that maps and displays the comparison calculated data. include,

After reaching the target depth of the drain casing, when the penetration pressure of the drain casing is smaller than the penetration pressure of the soil borehole data, the drain casing is controlled to penetrate additionally,

It is possible to supplement the insertion depth of the drain casing immediately on site, and it is possible to obtain the effect of accurately specifying the insertion position of the drain material according to the state of the ground.

In addition, a drain material anchoring depth measuring unit composed of a vibration device and a contact sensing unit of the anchor plate is provided to promote and detect the separation of the anchor plate supporting the drain material from the end of the drain casing when the drain casing is pulled out. By doing this, it is possible to promote the anchoring of the anchor plate fixing the end of the drain material to the ground immediately before drawing out the drain casing and the separation of the drain casing and the anchor plate, and at the same time, the effect of measuring the anchoring depth of the drain material can be obtained. there is.

1 is a plan view illustrating a region to which a drain material is inserted for improvement of general soft ground by dividing it.
2 is a cross-sectional view showing a state in which a drain material is inserted into a general soft ground.
3 is a view for explaining the floating phenomenon of a general drain material.
4 is a view for explaining the structure of a drain material pouring device equipped with a load cell-based penetration force measurement system of the present invention.
5 is a block diagram for explaining the load cell-based penetration force measurement system of the present invention.
6 is a flow chart for explaining the operation of the drain material placing device equipped with the load cell-based penetration force measurement system of the present invention.
Figure 7 is a three-dimensional view for explaining the anchoring depth measuring unit of the drain material of the present invention.
8 is a graph showing a change in pressure applied to the drain casing when the drain casing 1204 of the present invention is inserted into the ground.
9 to 11 are cross-sectional views for explaining the operation of the anchoring depth measuring unit of the drain material of the present invention.

The drain material placement device 1201 equipped with the load cell-based penetration force measurement system 1230 of the present invention includes a leader 1202, a drain casing fixing holder 1203, a drain casing 1204, and a drain material ( and a reel device 1206 on which P) is wound. The reel device 1206 is configured such that the reel of the reel device 1206 can reverse rotate when pulled with a force equal to or greater than a set tension (for example, 2 to 10 kg). The reason why the reel of the reel device is configured to rotate in reverse is as shown in FIG. 9, when the drain material P is fixed to the anchor plate 12 on the ground, tension acts on the drain material P, ) is not separated from the end of the drain casing 1204, and when the drain casing 1204 is lowered and inserted into the ground, the drain material P is released from the reel device and descends together with the drain casing.

The leader 1202 is installed on the main body of the drain material placing device in an angle-adjustable state, and the drain casing fixing holder 1203 is configured to move up and down along the vertical direction of the leader. The drain casing fixing holder may be driven indirectly by the hydraulic cylinder 1245 by being fixed to the sheave 1244 around which the wire 1233 is wound, or by directly fixing the hydraulic cylinder to the drain casing fixing holder without a wire. The lifting length of the drain casing 1204 moved by the rotation of the pulley 1244 can be measured by a sensor (not shown) that detects the number of revolutions of the pulley. The sensor for detecting the number of revolutions of the sheave functions as a depth measuring device 1225 of the drain casing of the present invention shown in FIG. 5 .

In addition, the drain material placing device 1201 of the present invention, as shown in FIG. 5, includes a wireless load cell 280, a depth measuring device 1225 of the drain casing, a satellite navigation device 1224 (GPS (global position system)), and a drain material An anchoring depth measuring unit 1250, a reference data input unit 1120, a display unit 1115, and a penetration force measuring system 1230 of the drain casing 1204 consisting of a control unit 1110 are provided.

The wireless load cell 280 is a drain casing fixing holder (1203 ) and the wire 1223.

Position coordinate data of the drain casing 1204 measured from the satellite navigation device 1224, data received from the wireless load cell 280, data received from the depth measuring device 1225 of the drain casing, depth measurement of drain material anchoring The data received from the unit 1250 is compared with the soil borehole data input from the outside through the reference data input unit 1120, and the result is displayed in real time through the display unit 1115, thereby driving the drain material placing device. The operator can receive information such as the location coordinates and depth of the drain casing 1204, the anchoring depth of the drain material, and the state of the ground.

As shown in FIG. 7, the drain casing 1204 is fixed to the drain casing fixing holder 1203 in a detachable state, and the drain casing 1204 is supplied with a drain material P through a reel device 1206 along the inner central axis A through portion 1208 is formed.

On the other hand, the drain material anchoring depth measuring unit 1250 of the present invention is configured in the drain casing 1204 to which the drain material P is supplied through the reel device 1206 along the central axis of the through-hole 1208.

The anchoring depth measuring unit 1250 of the drain material of the present invention is connected to at least one vibration device 1251 and 1252 and the vibration device 1251 and 1252 so as to be exposed to the lower end of the drain casing 1204. It is composed of pressure sensors 1251a and 1252a. A plurality of pressure sensors 1251a and 1252a may be configured for each vibration device. The pressure sensors 1251a and 1252a are configured to contact the anchor plate 12 supported at the end of the drain casing 1204, so that they can detect at what depth the anchor plate is separated from the end of the drain casing 1204. there is.

Since the vibration devices 1251 and 1252 and the pressure sensors 1251a and 1252a are exposed to the end of the drain casing 1204, they can directly contact the anchor plate 12 fixing the drain material P. That is, when the pressure is not sensed because there is no contact between the pressure sensors 1251a and 1252a and the anchor plate 12, the position of the end of the drain casing 1204 at that moment is determined as the anchoring position of the anchor plate 12.

In the present invention, a structure in which vibration devices 1251 and 1252 are installed on both ends of the drain casing is exemplified, but only one may be configured. The vibration devices 1251 and 1252 can be configured to be driven by power or air pressure, and since the power lines 1251b and 1252b or air supply hoses occupy a very small volume, the through-hole 1208 of the drain casing can be wired through. Since the vibrator is to give strong vibration to the lower end of the drain casing, any known vibrator may be used. The pressure sensors 1251a and 1252a coupled to the vibration device are interlocked together to transmit vibration when the vibration device is driven. Signals of the pressure sensors 1251a and 1252a may be transmitted to the controller 1110 through a separate wired line (not shown).

The pressure sensors 1251a and 1252a have high vibration pressure when in contact with the anchor plate 12 whose surface is hard, and small or no vibration pressure when not in contact with the anchor plate 12, so the vibration By detecting the pressure difference, you can accurately know the anchoring position.

In addition, the pressure sensors 1251a and 1252a are supported by springs (not shown) from the inside of the vibration device to maintain a slightly protruding state (0.5 to 1 cm) from the end of the vibration device, thereby preventing the pressure sensor from excessive pressure. can protect The vibrating device is driven simultaneously with the drawing of the drain casing and lasts for a predetermined time, but when the separation of the anchor plate is confirmed by the pressure sensor, the driving of the vibrating device can be immediately stopped.

In addition to the vibration devices 1251 and 1252 configured at the end of the drain casing, an auxiliary vibration device 1253 attached to the top of the drain casing can be further configured to further add vibration in the vertical or horizontal direction when the drain casing is pulled out. there is.

The vibration devices 1251 and 1252 and the auxiliary vibration device 1253 are connected to the vibration power transmission device 1255 installed in the drain casing fixing holder 1203 via power lines 1251b, 1252b, and 1253b or air hoses. .

The driving process of the drain material placing device 1201 of the present invention configured as described above will be described with reference to FIGS. 5 and 6 mainly.

First, turn on the power of the drain material placing device 1201 to be in an operable state (S10).

Next, the display unit 1115 receives the GPS 1224 data to determine if the penetration position on the work specification input through the reference data input unit 1120 matches the construction position of the drain casing 1204, and maps the display unit 1115 ( S20).

If the penetration position on the work specification and the construction position of the drain casing 1204 do not match, the drain material placement device 1201 is moved (S30), and if the position coincides, the drain casing from depth 1 to depth n ( 1204) is penetrated into the ground (S40).

In the penetration process of the drain casing 1204, the penetration pressure for each depth is measured by the wireless load cell 280 (S50).

Subsequently, it is determined whether the target depth has been reached during the penetration process of the drain casing 1204 through the depth measuring device 1225 of the drain casing (S60), and when the target depth is reached, the penetration pressure data of the drain casing and the penetration pressure of the soil borehole The control unit 1110 compares and calculates the data, maps the data to the display unit 1115, and displays the data (S70).

Subsequently, the control unit 1110 determines whether the pressure of the penetration construction data of the drain casing 1204 is greater than the pressure of the soil borehole data for each depth (S80),

When the end pressure of the penetration construction data of the drain casing 1204 is greater than the end pressure of the soil borehole data, measuring the anchoring depth of the drain material through the anchoring depth measuring unit 1250 of the drain material (S110) and, when the end pressure of the penetration construction data is smaller than the end pressure of the soil borehole data, the target depth is changed (S90). The target depth change may be set so that the drain casing 1204 can be additionally penetrated until the end pressure of the soil borehole data is reached, and a certain depth of 2 to 5 m can be further penetrated regardless of the end pressure.

In the penetration construction of the drain casing 1204, the end pressure is, for example, as shown in FIG. 8, even if the pressure is applied when reaching the target depth of 34 m, the drain casing 1204 is no longer penetrated and only the pressure value increases It refers to the section (hard ground layer section).

When the anchoring depth measurement of the drain material (P) is performed, the actual data received from the drain casing depth measuring device 1225, the wireless load cell 280, the drain material anchoring depth measuring unit 1250, and the reference data input unit Soil borehole data input in advance in 1120 is compared and calculated, and mapped to the display unit 115 so that it can be displayed (S120). As described above, by comparing the anchoring depth position of the drain material with the depth position of the drain casing, there is an advantage in that the quality of the drain material insertion work can be accurately grasped.

The technical configuration and operation of the anchoring depth measuring unit 1250 of the drain material of the present invention having the above characteristics will be described with reference to FIGS. 9 to 11.

First, as shown in FIG. 9, the end of the drain material P wound around the reel device 1206 is drawn out through the through hole 1208 of the drain casing 1204, and then the anchor plate 12 is fixed to the end. When the anchor plate 12 fixed to the end of the drain material is placed, the tension of the reel device acts, so the drain material P is no longer carried up by the anchor plate 12 caught on the lower end of the drain casing 1204, and the drain casing It is supported at the end of 1204. As the drain material P, either a pipe shape or a plate shape may be used, and an anchor plate suitable for the drain material used may be used.

In a state where the anchor plate 12 is fixed to the lower end of the drain casing 1204, the drain casing 1204 is lowered and inserted into the soft ground 9 to a predetermined depth as shown in FIG. After the drain casing 1204 is inserted to the target working depth, immediately before drawing out the drain casing 1204, the vibration devices 1251 and 1252 constituting the anchoring depth measuring unit 1250 of the drain material of the present invention, and By selectively driving the auxiliary vibration device 1253, vibration is given to the anchor plate 12 in the left and right or up and down directions for a certain period of time (about 5 to 20 seconds).

When the vibration wave is transmitted to the anchor plate 12 by the vibration, the vibration device and the pressure sensor 1251a and 1252a promote the rocking of the anchor plate, so that the end of the anchor plate 12 easily digs into the side wall of the hole in the soft ground. For (see Fig. 10), anchoring begins.

Subsequently, when the drain casing 1204 is pulled from the ground toward the ground as shown in FIG. 10 while the vibration device is driven, the drain casing 1204 and the anchor plate 12 are separated, and the earth pressure from the sidewall of the hole in the soft ground 9 This instantaneous action causes the entire anchor plate 12 to be buried in the earth's sand and anchoring is ensured, so that the drain material P does not go up any further in the direction of drawing out of the drain casing 1204.

When the anchor plate 12 is separated from the end of the drain casing 1204 during the drawing of the drain casing 1204, the pressure sensors 1251a and 1252a detect a contact release signal with the anchor plate 12 so that the end of the drain casing By calculating the location depth, the depth location where the end of the drain material is anchored can be detected.

That is, the drain material anchoring depth measuring unit 1250 of the present invention is configured to have a function of accelerating anchoring of the anchor plate 12 as well as a function of accurately detecting the position of the anchoring at the same time, which is useful for quality control of construction. can be very useful.

The drain material pouring device 1201 of the present invention described above is not limited to the illustrated structure and description, and can be variously modified and implemented within the scope of the claims and objects of the present invention.

The present invention relates to a drain material placement device for vertically inserting a drain material into the ground, and is used to improve soft ground or wetlands.

9 - soft ground 10 - cover soil layer
11 - drainage layer 12 - anchor plate
P, P1, P2, P3, P4 - Drain material
280 - wireless load cell 1110 - control unit
1115 - display unit 1120 - reference data input unit
1201 - Drain material pouring device 1202 - Leader
1203 - drain casing fixing holder 204, 1204 - drain casing
1206 - Reel device 1208 - Through-hole of drain casing
1224 - GPS 1230 - Penetration Force Measurement System
1233 - wire 1244 - pulley
1245 - hydraulic cylinder 1250 - anchoring depth measuring unit of drain material
1251,1252 - Vibrator 1253 - Auxiliary Vibrator
1251a, 1252a - Pressure sensor 1251b, 1252b, 1253b - Power line
1255 - Vibration Drivetrain

Claims (9)

A drain casing fixing holder configured to move up and down along a leader, a drain casing mounted on the drain casing fixing holder and having a through hole therein, and a reel device for supplying drain material through the through hole of the drain casing; , the penetration force measuring system of the drain casing, and the drain casing having an anchoring depth measuring unit of the drain material,
The system for measuring the penetration force of the drain casing includes a wireless load cell for measuring the pressure applied to the drain casing when the drain casing is pulled into or pulled out into the ground;
A control unit that compares and calculates actual measurement data received from the drain casing depth measurer, the drain casing depth measurer and the wireless load cell, and soil borehole data input from the outside; and a display unit that maps and displays the comparison calculated data. include,
After reaching the target depth of the drain casing, when the penetration pressure of the drain casing is smaller than the penetration pressure of the soil borehole data, configured to additionally penetrate the drain casing,
The anchoring depth measuring unit of the drain material is configured to detect separation of the anchor plate supporting the drain material from the end of the drain casing when the drain casing is pulled out, characterized in that the load cell-based penetration force measurement Drain material pouring device equipped with a system. According to claim 1,
Additional penetration of the drain casing is a drain material placing device equipped with a load cell-based penetration force measurement system, characterized in that made to a depth that reaches the penetration pressure of the soil borehole data. According to claim 1,
Drain material placing device equipped with a load cell-based penetration force measuring system, characterized in that the satellite navigation device is installed in the drain material placing device. delete delete According to claim 1,
The anchoring depth measuring unit of the drain material is equipped with a load cell-based penetration force measuring system, characterized in that it includes at least a vibration device. According to claim 6,
The vibration device has a contact sensing unit configured to be exposed to an end of the drain casing, and the contact sensing unit is configured to be in contact with the anchor plate. Device. According to claim 7,
The contact sensing unit is equipped with a load cell-based penetration force measuring system, characterized in that consisting of a pressure sensor. According to claim 1,
A load cell-based penetration measurement system is provided, characterized in that it is configured to compare and calculate the actual data received from the depth measuring device of the drain casing, the wireless load cell, and the anchoring depth measuring unit of the drain material with the soil borehole data Drain material pouring device.