JP2009275442A - Construction quality control system for soil improvement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a construction quality control system for soil improvement facilitating grasp of improvement level of a whole improvement range when the soil is improved by placing a solidification material and agitating it in the whole area under a building. <P>SOLUTION: A horizontal cross section display screen 33A and a vertical cross section display screen 35A are shown on a display screen of a display 31. The horizontal cross section display screen 33A and the vertical cross section display screen 35A show the level of improvement having an area corresponding to an agitation area by an agitating blade and a vertical range of each of predetermined depths as a display unit 34. In the horizontal cross section display screen 33A, a plurality of display units put together in the horizontal direction of the same depth and divided into a plurality of rows and columns form a horizontal cross section display block. A vertical cross section display block selected by a scroll bar 40 accompanying the horizontal cross section display screen 33A is displayed on the vertical cross section display screen 35A. The horizontal cross section display block selected by a scroll bar 36 accompanying the vertical cross section display screen 35A is displayed on the horizontal cross section display screen 33A. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention provides a stirring blade at the lower end of the stirring shaft of the injection stirring device attached to the front of the ground improvement machine, and injects the solidified material into the ground from the lower end of the stirring shaft and simultaneously agitates the injection region with the stirring blade. The present invention relates to a construction quality control system for ground improvement work.

  In order to improve the ground for the building 50 as shown in FIG. 11 (A), a pile 51 is buried in the ground. As a method of constructing such a pile 51, there is a method of constructing a pile by stirring while injecting a solidifying material (cement milk) into the ground, in addition to a method of constructing an existing pile. When such a construction method is adopted, it is necessary for ensuring the strength of the pile 51 that the solidified material is uniformly injected and stirred over the entire length in the depth direction of the ground to be improved. As a system for monitoring whether or not the amount of solidification material injected and the number of times of stirring have reached a reference value, there is one described in Patent Document 1.

  The monitoring system described in Patent Document 1 is a bar graph in which one axis of a display screen is set as a depth, and a solidified material addition amount for each depth is displayed as the other axis, and stirring and mixing by a stirring blade for each depth. By displaying the number of times as a bar graph displayed as the other axis, the mixing degree of the solidified material is displayed.

JP 2002-38463 A

  In recent years, the number of piles 51 has been increased as shown in FIG. However, recently, in order to cope with the further increase in strength, as shown in FIG. 11C, a three-dimensional construction method in which the entire lower surface of the building 50 is an improved region 52 has been adopted. If the solidification material is injected and mixed in the entire lower surface of the building 50 in this way, the increase in the area of the improved portion in the case of the pile due to the support action by the mutual coupling of the ground cured by the solidification material. A ground with much higher support strength can be obtained.

  In the monitoring system described in Patent Document 1 described above, the solidification material addition amount and the number of stirring and mixing for each predetermined depth are displayed for each pile 51 before curing, as shown in FIG. In addition, when the entire lower surface of the building 50 is used as the improvement region 52, it is difficult to grasp the improvement degree as a whole.

  In the present invention, in view of the above problems, when the ground is improved by injecting and stirring the solidified material to the entire lower surface of the building, it is easy to grasp the degree of improvement of the entire improvement range, and the solidifying material is injected and stirred. It is an object of the present invention to provide a construction quality management system for ground improvement that can prevent the occurrence of a shortage and can realize a high strength ground without injecting solidifying material and unevenness of stirring.

The construction quality control system for ground improvement according to claim 1 is characterized in that the solidification material is injected into the ground from the lower end of the stirring shaft of the injection stirring device attached to the front of the ground improvement machine, and at the same time, the stirring provided at the lower end of the stirring shaft. In the construction quality control system of ground improvement, which stirs the solidification material injection point into the ground with wings and improves the ground,
In the display device that displays the status of ground improvement during construction,
A plurality of horizontal sections prepared at different depths in a range on the horizontal plane where the ground improvement work is performed at once by turning and turning the boom and arm with the lower traveling body of the ground improvement machine fixed. A horizontal cross-section display screen that displays a plurality of display units included in one horizontal cross-section display block selected from the display blocks at a time by means of row and column modes, and means that can visually identify the degree of improvement;
A plurality of display units included in one vertical cross-section display block selected from a plurality of vertical cross-section display blocks prepared for different rows or columns of the horizontal cross-section display screen are visually improved according to the row and column modes. A vertical cross-section display screen that displays at a time by means that can be identified,
A first scroll bar provided along a row or column direction of the horizontal section display screen;
Displaying a second scroll bar provided along the height direction of the vertical cross-section display screen,
A vertical section display block corresponding to the position of the first scroll bar is displayed on the vertical section display screen in conjunction with the movement of the first scroll bar, and in conjunction with the movement of the second scroll bar. A horizontal section display block corresponding to the position of the second scroll bar is displayed on the horizontal section display screen.

The construction quality management system for ground improvement according to claim 2 is the construction quality management system for ground improvement according to claim 1,
The display of the improvement degree of the display unit is changed depending on whether the solidification material injection amount or the number of stirrings reaches a set value, and either the solidification material injection amount or the number of stirrings is selected. The display switching means for displaying is provided.

  The ground improvement construction quality control system according to claim 3 is the ground improvement construction quality management system according to claim 1 or 2, wherein the ground improvement machine is configured to install an upper turning body on a lower traveling body, and An articulated arm is attached to the swivel body, and an injection stirring device including the stirring shaft is attached to the articulated arm.

  In the first aspect of the invention, the vertical cross-section display block corresponding to the position of the first scroll bar is displayed on the vertical cross-section display screen in conjunction with the movement of the first scroll bar, and the second scroll bar is moved. Since the horizontal section display block corresponding to the position of the second scroll bar is displayed on the horizontal section display screen in conjunction with each other, the entire vertical section can be displayed for every row or column of the horizontal section, and any depth can be displayed. The entire horizontal section of the improved range can be displayed. For this reason, it becomes easy to grasp the degree of improvement in the entire improvement range, and the portion to be improved can be easily and quickly confirmed. For this reason, the solidified material can be reinjected and re-stirred accurately, and a ground with high strength can be obtained as a whole without unevenness in the amount of solidified material injected and the number of times of stirring.

  In the invention of claim 2, since the solidifying material injection amount and the number of stirrings are switched and displayed, when a large number of display units are displayed at a time, the solidifying material injection amount and the number of stirrings are displayed in comparison with the case of displaying simultaneously. Since it is possible to display without reducing the size of the unit too much, it becomes easy to visually check and easy to confirm. Further, by switching and displaying the solidifying material injection amount and the number of times of stirring, it becomes easy to confirm what is insufficient, and it is sufficient to perform the work corresponding to the shortage, and the response can be appropriately performed.

  According to the invention of claim 3, the ground improvement is possible over a wide range without changing the position of the lower traveling body of the ground improvement machine by the turning operation of the upper turning body and the expansion and contraction operation of the articulated arm. Can be implemented efficiently.

  FIG. 1 is a side view showing an embodiment of a ground improvement machine for performing ground improvement work according to the present invention. The structure of this ground improvement machine 1 is as follows. An upper swing body 4 is installed on the lower traveling body 2 via a swing device 3, and a hydraulic power unit 5 and a cab 6 are installed on the upper swing body 4. A solidified material injecting and agitating device 8 for ground improvement is rotatably attached to an articulated arm 7 as a front on the upper swing body 4 via a pin 13.

  The articulated arm 7 includes a boom 10 attached to the upper swing body 4 by a boom cylinder 9 so as to be able to move up and down, an arm 12 attached to the tip of the boom 10 so as to be vertically rotatable by an arm cylinder 11, and an injection stirring device. And a work tool cylinder 14 attached to the arm 12 for rotating 8. The distal end of the work tool cylinder 14 is connected to the distal end of a link 15 attached to the arm 12, and one end of another link 16 is also connected. The other end of the link 16 is connected to the upper end portion of the injection stirring device 8. To do.

  The injection stirring device 8 includes a bracket 17 attached to the arm 12 by a pin 13, a stirring shaft 18 rotatably attached to the bracket 17, and a drive composed of a hydraulic motor attached to the bracket 17 and rotating the stirring shaft 18. A motor 19 and a stirring blade 20 having a drilling function attached to the lower end of the stirring shaft 18 are included. The lower end of the stirring shaft 18 has an inlet for injecting the solidified material sent through the stirring shaft 18 into the ground.

  Next, the construction management system equipped in this ground improvement machine will be described. Reference numeral 21 denotes a turning angle sensor provided for detecting the direction of the articulated arm 7 with respect to the lower traveling body 2 (turning angle θ: see FIG. 4). Reference numeral 22 denotes a boom angle sensor for detecting the undulation angle α of the boom 9. An arm angle sensor 23 detects an angle β of the arm 12 with respect to the boom 10. Reference numeral 24 denotes a solidified material flow rate sensor for detecting a solidified material flow rate V sent from a solidified material supply device (not shown) through a solidified material injection pipe (not shown) attached along the articulated arm 7. Reference numeral 25 denotes a pressure sensor that detects the excavation resistance by detecting the torque of the agitation shaft 18 by detecting the drive hydraulic pressure P of the drive motor 19 that rotates the agitation shaft 18. The pressure sensor 25 is provided to detect whether or not the excavation depth by the stirring blade 20 (that is, the solidified material injection depth) has reached a ground having a predetermined hardness. Reference numeral 26 denotes a rotation sensor for obtaining the rotational speed N of the stirring shaft 18 in order to detect the degree of stirring at the solidifying material injection point.

  27 is a monitor installed in the operator's cab 6, and this monitor 27, as shown in FIG. 2, is injected based on the detection signals from the sensors 21 to 26 shown in FIG. It includes a calculation device 29 for calculating the position and depth of the stirring device 8, the amount of solidification material injected and the number of stirrings, a storage device 30 for storing the calculation results, and a display device 31 for storing stored values. It is a waste.

  FIG. 3 is a diagram for explaining the relationship between the ground improvement machine 1 and the construction range 32. A range 32 in which the ground improvement work is performed while the ground improvement machine 1 is fixed is set to a rectangle or a square. The construction range 32 includes a reach range depending on the length of the articulated arm 7 that can reach a predetermined depth, and a limit associated with the turning of the swivel device 3 (R1 and R2 are the inner ends of the articulated arm 7 in the construction range 32, respectively). Tangent circle and circumscribed circle). In the ground improvement work, after one construction range 32 is constructed with the ground improvement machine 1 fixed, the ground improvement machine 1 is located at a position corresponding to another construction range 32 (for example, a place adjacent to the left or right or the rear). The ground improvement work is performed in a state where the ground improvement machine 1 is fixed at the position where the ground improvement machine is fixed.

  As shown in FIG. 4, when performing the display described later, one display unit 34 has an area that can be stirred by the stirring blade 20. When the left and right direction as viewed from the lower traveling body 2 is the X axis and the front and rear direction is the Y axis, one construction range 32 is a plurality of display units 34 partitioned into a plurality of rows Y0 to Ym and columns X0 to Xn. including.

  FIG. 5 is a diagram for explaining region setting for dividing the display unit 34 in the horizontal direction, the front-rear direction, and the depth direction of the ground improvement machine 1. Reference numeral 33 denotes a horizontal cross-section display block divided at predetermined depths (H0, H1, H2,...). The width of the horizontal section display block 33 corresponds to one construction range 32.

  In this embodiment, as shown in FIG. 6, a vertical section display block 35 separated for each of rows Y0 to Ym is also prepared. This vertical section display block 35 displays the display units 34 as one display block 35 in the vertical direction for each row Y0, Y1,.

  FIG. 7 shows a display screen displayed on the display device 31. The display screen of this embodiment is composed of a touch panel, and has a horizontal section display screen 33A of the horizontal section display block 33 and a vertical section display screen 35A for displaying the vertical section display block 35 shown in FIG. In addition, a scroll bar (second scroll bar) 36, an upward movement instruction mark 37, and a downward movement instruction mark 38 are displayed in order to switch and display the horizontal section display block 33 at different heights. These scroll bar 36 and marks 37, 38 are provided along the height direction on the side of the vertical sectional display screen 35A.

  Further, a scroll bar (first scroll bar) 40 and line change instruction marks 41 and 42 are displayed in order to switch and display the vertical section display block 35 for different lines. These scroll bars 40 and marks 41 and 42 are provided alongside the horizontal section display screen 33A, that is, in the column direction. In the illustrated example, as can be seen from the position of the scroll bar 36, the horizontal cross-section display block 33 on the surface is displayed on the horizontal cross-section display screen 33A. Further, as can be seen from the position of the scroll bar 40, the vertical section display block 35 in the second row is displayed on the vertical section display screen 35A.

  Further, the display screen displays a column 43 for displaying the target number of times of stirring in each display unit 34, a column 44 for displaying the target injection amount of the solidified material, and a work range (m) in the front-rear direction (Y-axis direction). A column 45 to display, a column 46 to display the working range (m) in the left-right direction (X-axis direction), a column 47 to display the current depth (m) of the stirring blade 20, and the current left to right of the stirring blade 20 A column 49 for displaying the position in the direction (for example, the distance (m) from the left end of the work range) and the current position in the front-rear direction of the stirring blade 20 (for example, from the end of the work range 32 near the ground improvement machine 1 side). A column 54 for displaying the distance (m)), a column 55 for displaying the integrated flow rate (L) of the solidified material in the work with the lower traveling body 2 fixed at the work site, and a horizontal section display screen 33A. About the cross-section display screen 35A, how much solidification material is injected and how many times it is stirred And a display switching unit 54 for selecting whether Les Show. This display switching means 54 also serves as a display field indicating which of the solidified material injection amount and the number of stirrings is currently displayed.

When the ground improvement is performed using the ground improvement machine 1, the position of the ground improvement machine 1 is set at a suitable position with respect to the construction range 32, and the work is performed with the position of the ground improvement machine 1 fixed. As the positional relationship between the construction range 32 and the ground improvement machine 1, a predetermined construction range 32 (for example, 4 m × 4 m) is set, and the distance from the position that becomes the construction range 32 to the ground improvement machine 1 It is fixed by setting the direction. As shown in FIG. 4, the position of the stirring shaft 18 is adjusted to the origin O (x ₀ , y ₀ ) by aligning the position of the stirring shaft 18 with the left and right position 32a, for example, closer to the lower traveling body 1 (rear end) in the construction range 32. The position of the stirring shaft 18 is aligned with the right end of the rear end to be the right front end position A (x _n , y ₀ ), and further the position of the stirring shaft 18 is aligned with the front end position of the left end to be the left front end position B (x ₀ , y _m ). The coordinates (x _n , y _m ) of the right front end position C are automatically determined from the origin O and the positions A and B. Further, the coordinates of the center position of the display unit 34 divided into rows and columns are obtained by equally dividing the coordinates of these positions O, A, B, and C. The width of the equally divided display unit 34 is set to a size capable of being stirred by the stirring blade 20.

The solidification material injection and agitation operations are sent from the solidification material supply device (not shown) through the solidification material injection pipe attached along the articulated arm 7 into the agitation shaft 18 and an injection port at the lower end of the agitation shaft 18. At the same time as it flows into the ground, it is stirred while excavating by the stirring blade 20, and the stirring shaft 18 is gradually deepened, so that the hydraulic pressure P detected by the pressure sensor 25 becomes higher than the preset hydraulic pressure (that is, in advance) When the hardness exceeds a predetermined standard hardness), the stirring shaft 18 is pulled up. The solidifying material may be injected from the stirring shaft 18 during the pulling. Such solidification material injection and agitation operations are performed for (x ₀ , y ₀ ), (x ₁ , y ₀ ), (x ₂ , y ₀ )... (X _n , y ₀ ) and the Y0 line. (X ₀ , y ₁ ), (x ₁ , y ₁ ), (x _n , y ₁ )... And Y1 rows, and so on up to Ym rows.

  In such solidification material injection and agitation operations, the position of the agitation shaft 18 on the coordinates is determined by the operator visually confirming the mark assigned to the display unit 34 on the ground and attaching the mark. The position of the agitation shaft 18 is aligned with the mark, or a mark for displaying the current position of the agitation shaft 18 is displayed on the horizontal sectional display screen 33A of the display device, and the position of the mark is aligned with the center position of the display unit 34. Do. The position of the stirring shaft 18 on the horizontal cross-section display screen 33A includes a turning angle θ detected by the turning angle sensor 21 (see FIG. 4), a boom angle α detected by the boom angle sensor 22 and the arm angle sensor 23, respectively. The detected value of the arm angle β (see FIG. 1) is input to the arithmetic unit 29, and is obtained by a known arithmetic expression based on the preset lengths of the boom 10 and the arm 12.

  The vertical descent control of the stirring shaft 18 is performed by using a vertical control device provided in the ground improvement machine 1 or manually by an operator. The lowering of the stirring shaft 18 is controlled so as to be performed at the same speed as possible. Further, the horizontal position of the stirring shaft 18 in this operation, that is, the position on the X and Y coordinates is obtained by the above-described calculation.

  The depth of the injection port into the ground of the stirring blade 20, that is, the solidified material, depends on the undulation angle α of the boom 9 detected by the boom angle sensor 22 and the angle β of the arm 12 with respect to the boom 10 detected by the arm angle sensor 23. And the length of the boom 10, the length of the arm 12, and the length of the injection and agitation device 8 are obtained by the arithmetic unit 29.

  The solidification material injection amount in the display unit 34 is obtained by integrating the flow rate V detected by the solidification material flow rate sensor 24 while the injection port of the stirring shaft 18 is in one display unit 34 by the arithmetic unit 29. In addition, the number of times of stirring in one display unit 34 is accumulated by the arithmetic unit 29 by the number of rotations N of the stirring shaft 18 detected by the rotation sensor 26 while the inlet of the stirring shaft 18 is in one display unit 34. Is required.

  The solidification material injection amount and the number of stirrings in each display unit 34 are stored in the storage device 30 and displayed on the display screen when the operator operates the display device 31. In this embodiment, an example is shown in which the solidifying material injection amount and the number of stirrings are displayed instead of being displayed at once.

  As shown in FIG. 7, in the display device 31, the horizontal cross-section display screen 33 </ b> A indicates whether the solidification material injection amount or the number of agitation reaches a set value for each display unit 34 of one horizontal cross-section display block 33. The solidified material injection amount or the number of stirrings is displayed for each display unit 34 on the vertical cross section display screen 35A in one row. The operator touches the scroll bar 36, the upward movement instruction mark 37, or the downward movement instruction mark 38 to determine the depth at which the solidified material injection amount or the number of stirrings of the horizontal sectional display block 33 is displayed on the horizontal section display screen 33 </ b> A. Then, the scroll bar 36 is moved, the depth displayed on the vertical section display screen 35A is selected, and in conjunction with the scroll bar 36, the horizontal section display screen 33A corresponds to the line on the vertical section display screen 35A. The horizontal section display block 33 to be displayed is displayed.

  Further, when the operator touches the scroll bar 40 or the line change instruction marks 41, 42, the scroll bar 40 is moved, and in conjunction with this movement, the vertical section display corresponding to the line on the horizontal section display screen 33A. The block 35 is selected and displayed on the vertical section display screen 35A. Further, whether to display the solidification material injection amount or the number of stirrings is alternately selected by touching a column 56 serving as a display switching means, and at the same time, the current display content is displayed in characters.

  Here, whether or not the solidifying material injection amount or the number of stirrings has reached the set value is calculated by the calculation device 29, and the pass / fail is determined, and the determination result can be visually identified for each display unit 34. Display by means. This acceptance / rejection display is performed by displaying at a glance, such as by color-coding or changing the pattern. In FIG. 7, reference numeral 34a indicates the display content in which the solidifying material injection amount or the number of stirrings does not reach the set value. On the display screen, the above-described display is performed in each of the columns 43 to 51 described above.

  In the display unit 34 with the horizontal cross-section display screen 33A or the vertical cross-section display screen 35A described above, when the amount of solidification material injection or the number of stirrings is insufficient, the stirring blade 20 is inserted into the corresponding portion, and the injection or stirring is performed. If either of the above operations is performed and both the solidifying material injection amount and the number of stirring times are insufficient, the injection and stirring operations are performed.

  Thus, in this embodiment, for any depth, the horizontal section display screen 33A can display the entire horizontal section of the construction range 32 in a state where it can be visually identified, and the vertical section display screen 35A Since the entire vertical section can be displayed in a state that can be visually identified each time, the degree of improvement of the entire construction range 32 can be grasped at a glance, and the portion to be improved can be easily and quickly confirmed. For this reason, it is possible to accurately inject and agitate the solidified material, and to obtain a ground with high strength without unevenness in the amount of solidified material injected and the number of times of stirring.

  Further, when the present invention is carried out, it may be displayed whether or not both the solidification material injection amount and the number of stirrings can be satisfied simultaneously for each display unit 34, but the solidification material injection amount and the number of stirrings are switched and displayed. As a result, it is easy to confirm what is lacking, and the response becomes appropriate. Moreover, although the solidification material injection amount and the number of stirrings may be written side by side for each display unit 34, for example, when there are a large number of display units as many as 1000, the display area becomes fine and difficult to see. On the other hand, by switching and displaying the solidification material injection amount and the number of stirrings as in the present embodiment, the display area is enlarged compared to the case of simultaneously displaying the solidification material injection amount and the number of stirrings, and it is easy to visually check. Confirmation is easy.

  FIG. 8 is another example of the display form of the improvement degree of the display unit 34 in the present invention. In the display unit, the aspect 34 in the case where both the solidification material injection amount and the number of stirrings are satisfied, and only the solidification material injection amount are insufficient. In the case where only the number of stirrings is insufficient, the case where only the number of stirrings is insufficient is displayed in the mode 34c different from the case of 34, 34b, and the cases where both the solidification material injection amount and the number of stirrings are not satisfied are 34, 34b, 34c. The display is made in a different mode 34d. As different display modes, there are colors, patterns, marks, or a combination of these. If such a display form is adopted, the display switching means 56 becomes unnecessary, and there is no need to reduce the display area as compared with the case where the solidifying material injection amount and the number of stirrings are written together in the display unit 34. There is.

  FIG. 9 is another example of the display form of the improvement degree of the display unit 34 according to the present invention. When the solidifying material injection amount and the number of stirrings are switched and displayed as in the example of FIG. 7, the shortage degree can be identified. It is made to display with. 34e is a case where the number of shortage of stirring is small and is indicated by one circle, and 34f is a case where the number of shortage of stirring is large and is indicated by two circles. 34g is a case where the shortage amount of the solidifying material injection amount is small and is displayed by one square mark, and 34h is a case where the shortage amount of the solidification material injection amount is large and is displayed by two square marks. Yes. With such a display mode, a guideline for the additional injection amount of the solidifying material and the number of times of stirring can be obtained, and a more suitable response can be made. Note that the solidification material injection amount and the insufficient degree of stirring may be displayed in three or more stages, and the number of marks is divided into three or more stages, respectively. Or may be displayed in different colors.

  FIG. 10 is another example of the display form of the improvement degree of the display unit 34 in the present invention. When the solidifying material injection amount and the number of stirrings are collectively displayed as one display unit 34 as in the example of FIG. The material injection amount and the degree of insufficient number of stirring are also displayed in an identifiable manner. In FIG. 10, 34e is a display mode in the case where only the number of times of stirring is insufficient and the number of times of shortage is small, and the color classification (color of the back) is the same as the case where the solidifying material injection amount and the number of times of stirring satisfy the set values. Shown with one circle. Similarly, 34f is a case where only the number of stirrings is insufficient, and the number of the shortages is large, which is indicated by two circles. Reference numerals 34i and 34j denote cases in which only the solidification material injection amount is insufficient, and the display modes are the case where the shortage amount is small (34i) and the case where the shortage amount is large (34j). 34k is a case where the amount of solidification material injection is insufficient and the number of stirring times is small, and is a pattern in which 34e and 34i are synthesized. 34m is a case where the amount of the solidification material injection is insufficient and the number of stirring times is large, and is a pattern in which 34f and 34i are synthesized. 34n is a case where the amount of solidifying material injection is insufficient and the number of stirring times is small, and is a pattern in which 34e and 34j are synthesized. 34p is a case where the amount of solidifying material injection is insufficient and the number of stirring times is large, and is a pattern in which 34f and 34j are synthesized. If distinguished by such a display mode, both the advantages of the display mode of FIG. 8 and the advantages of the display mode of FIG. 9 can be obtained.

  When the present invention is implemented, the present invention can be applied to a case where the front is a leader. However, as compared with a leader-type ground improvement machine, the one using an articulated arm 7 as a front as in the present embodiment. If it is used, the ground can be improved over a wide range by the turning motion of the upper swing body 4 and the expansion and contraction motion of the articulated arm 7, which is preferable for efficient ground improvement. If the articulated arm has a vertical control function in which three arms are connected to each other so as to be rotatable, the vertical control of the stirring shaft 18 becomes easier.

  In the above embodiment, the display of the vertical section display screen 35A is changed for each row of the horizontal section display screen 33A, but the display of the vertical section display screen 35A is changed for each column of the horizontal section display screen 33A. Also good. Moreover, you may enable it to select displaying for every row | line | column or displaying for every column.

It is a side view which shows one Embodiment of the ground improvement machine by this invention. It is a block diagram explaining the relationship with each sensor of FIG. 1, an arithmetic unit, and a display apparatus. It is a figure explaining the range which performs ground improvement using the ground improvement machine of FIG. FIG. 4 is a partially enlarged view of FIG. 3. It is a perspective view explaining the horizontal cross section display block in the form of this Embodiment. It is a perspective view explaining the vertical cross-section display block in the form of this Embodiment. It is a figure explaining the display content of the display apparatus in this Embodiment. It is a figure which shows another example of the display mode of the improvement degree in the display unit of this invention. It is a figure which further shows another example of the display mode of the improvement degree in the display unit of this invention. It is a figure which further shows another example of the display mode of the improvement degree in the display unit of this invention. (A), (B) is a figure which shows the construction aspect of the pile conventionally used frequently, (C) is a figure which shows the ground improvement aspect which is being used recently.

Explanation of symbols

1: ground improvement machine, 2: lower traveling body, 3: turning device, 4: upper turning body, 5: hydraulic power unit, 6: cab, 7: articulated arm, 8: injection stirring device, 9: boom cylinder, 10: boom, 11: arm cylinder, 12: arm, 13: pin, 14: work tool cylinder, 15, 16: link, 17: bracket, 18: stirring shaft, 19: drive motor, 20: stirring blade, 21: Swivel angle sensor, 22: Boom angle sensor, 23: Arm angle sensor, 24: Solidified material flow sensor, 25: Pressure sensor, 26: Rotation sensor, 27: Monitor, 29: Computing device, 30: Storage device, 31: Display Device, 32: Construction range, 33: Horizontal section display block, 33A: Horizontal section display screen, 34: Display unit, 35: Vertical section display block, 35A: Vertical section display screen, 36: Second section Crawl bar, 37: Upward movement instruction mark, 38: Downward movement instruction mark, 40: First scroll bar, 41, 42: Line change instruction mark, 43: Column for displaying target number of stirrings, 44: Solidification A column for displaying the target injection amount of the material, 45: a column for displaying the working range in the front-rear direction, 46: a column for displaying the working range in the left-right direction, 47: a column for displaying the current depth of the stirring blade, 49: Column for displaying the current position of the stirring blade in the left-right direction, 50: Building, 51: Pile, 52: Improvement area, 54: Column for displaying the current position of the stirring blade in the front-rear direction, 55: Accumulation of solidified material Column for displaying flow rate, 56: Display switching means

Claims (3)

The solidification material is injected into the ground from the lower end of the stirring shaft of the injection stirring device attached to the front of the ground improvement machine, and at the same time, the solidification material injection point into the ground is stirred by the stirring blade provided at the lower end of the stirring shaft. In the ground improvement construction quality control system that performs ground improvement,
In the display device that displays the status of ground improvement during construction,
A plurality of horizontal sections prepared at different depths in a range on the horizontal plane where the ground improvement work is performed at once by turning and turning the boom and arm with the lower traveling body of the ground improvement machine fixed. A horizontal cross-section display screen that displays a plurality of display units included in one horizontal cross-section display block selected from the display blocks at a time by means of row and column modes, and means that can visually identify the degree of improvement;
A plurality of display units included in one vertical cross-section display block selected from a plurality of vertical cross-section display blocks prepared for different rows or columns of the horizontal cross-section display screen are visually improved according to the row and column modes. A vertical cross-section display screen that displays at a time by means that can be identified,
A first scroll bar provided along a row or column direction of the horizontal section display screen;
Displaying a second scroll bar provided along the height direction of the vertical cross-section display screen,
A vertical section display block corresponding to the position of the first scroll bar is displayed on the vertical section display screen in conjunction with the movement of the first scroll bar, and in conjunction with the movement of the second scroll bar. A ground quality improvement construction quality management system, wherein a horizontal section display block corresponding to the position of the second scroll bar is displayed on the horizontal section display screen. In the construction quality management system for ground improvement according to claim 1,
The display of the improvement degree of the display unit is changed depending on whether the solidification material injection amount or the number of stirrings reaches a set value, and either the solidification material injection amount or the number of stirrings is selected. A construction quality control system for ground improvement characterized by comprising display switching means for displaying. In the construction quality management system for ground improvement according to claim 1 or 2,
The ground improvement machine has a configuration in which an upper turning body is installed on a lower traveling body, an articulated arm is attached to the upper turning body, and an injection stirring device including the stirring shaft is attached to the articulated arm. A construction quality control system for ground improvement.

Images