JPS5944419A - Administration system for deep layer mixing treatment work - Google Patents

Abstract

PURPOSE:To quickly and exactly administrate the work of deep layer mixing treatment by a method in which an execution depth, the level of tidal wave, the position of a hull, the inclination of the hull, and the inclination of the hull, and the inclination of a treating machine are automatically observed, and the locus of the tip of the treating machine is obtained. CONSTITUTION:The depth of observatory point is automatically detected by a depth meter and a tidal wave level meter 17 provided between a treating machine 7 and a tower 2 and data are put in the administration system. The position of a hull is automatically detected by a photo-wave distance meter and data are put in. Also, the angle of the head of the treating machine is automatically detected by a hull inclimometer 16 and data are put in. The angle of the guide steel tube of the treating machine is automatically detected by an inclinometer in the guide steel tube and data are put in. These data are calculated and the locus of the tip of the treating machine is automatically recorded and displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a construction management system in a deep mixing treatment ground improvement method, and more specifically, to a system that automatically displays the penetration and extraction locus of the tip of a treatment machine. In recent years, the so-called deep mixing method, which constructs improved piles by stirring and mixing the deep layers of the ground while adding hardening materials such as cement, has attracted attention in recent years.
In particular, it has been put into practical use as a method for improving soft seabed ground.

A particular problem with this method is that during the treatment process, which spans several tens of meters, the guide steel pipe that supports and guides the stirring blades is deformed in a complex manner due to the effects of various factors such as soil pressure, water pressure, and soil layers. This is because the construction of the planned improved piles would be uneven, resulting in unimproved areas.In order to avoid this, conventionally, a large number of inclined needles were used or the slope of the guide steel pipe was determined by transit observation. The angle was determined, but since the measurement was done by one person, reading and observation errors occurred, resulting in poor reliability, and the speed of construction was also lacking, which became a problem in construction management. In view of the problems of the prior art described above, the present invention aims to provide a construction management system that can accurately and quickly record and display the penetration and extraction trajectory of the tip of the treatment machine in the deep mixing treatment method. .

The purpose of this is to use the observation point depth automatically detected by the depth gauge and tide gauge, the hull position automatically detected by the light wave distance meter, the change in the hull heel angle automatically detected by the inclination meter, the tilt angle of the processing machine head, and the like. This is achieved by realizing a construction management system that automatically records and shows the tip trajectory of the processing machine based on the angle of inclination of the processing machine guide steel pipe.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a side view showing an example of offshore construction using a deep mixing treatment apparatus to which the construction management system according to the present invention is applied.

In the figure, reference numeral 1 is a work boat with a tower 2 set up in the center, and a cement plant 3 for supplying cement, which is a hardening material. A cement silo 4 is provided, and a control unit 5 equipped with various control devices and a hydraulic unit 6 are also provided. 7 is the main body of the processing machine.

The processing machine main body 70 head is suspended from the top of the tower 2 by a wire 8 and covered by a steady rest 9, and is able to move up and down along the tower 2 while being guided by a length bleeder 9'. There is a reduction @IO, and from there downward there is a drive shaft 12. which has a stirring blade 11 at its tip.
A plurality of drive shafts 12 (usually six) are rotatably extended, and the drive shaft 12.12 is supported and guided by a guide tube 13 extending downward from the speed reducer 10. During construction, the drive shaft 12.12 is rotated, the stirring blade 11 penetrates into the soil, cement is injected from the tip of the stirring IIt11, and the stirring R11 is rotated to mix cement and soft ground. , After pulling out, there busy improvement pile will be constructed. In addition, a plurality of agitating piles (11 are arranged so as to overlap each other), and a wall-shaped improved pile of an appropriate size will be formed in 2 constructions, and 14 is the head of the processing machine Inclination needle, 15 is an inclinometer in a kite steel pipe, 16 is a hull inclinometer, and 17 is a tide gauge. These are located in the control room 5 along with other depth gauges and a light wave distance needle (not shown).
Electricity is connected to the arithmetic unit 18 (computer) in the processor body 7, which will be used as an information source for tracking and managing the tip trajectory of the processor body 7, which will be described later. The automatic tip trajectory display system will be explained based on FIG. 2, a process flow diagram. First, in a one-person process, the depth of an arbitrary observation point is recorded at the desired depth and input. Since the marking depth changes depending on the tide level, in order to correct the observation point depth, the BI& constantly detects changes in the tide level using the tide gauge 17 and automatically inputs this value. Here, the automatic depth meter acts as a starting command device when starting the system, if the program depth is commanded to the computer.

Next, in step C, as shown in FIG. 3, two light sources ol and o2 are provided on an arbitrary base @
Horizontal distance L1 from to the center of planned improved pile position tml-1
．． Detect the distance @L2 from the light source 02 force 1 to the center of the leaf painting improvement pile position +11a 1-1 respectively, calculate the hull position (center of buoyancy 0 point) from these data, and calculate this from the front, back, left and right 2.
The hull position obtained through this process, which is entered using polar display, can be confirmed accurately to the millimeter.

Next, in step D, based on the hull inclination angle 1 detected by the hull inclinometer 16, the processing machine main body head (reducer 10
) and the sub-leader guide, and in step E, based on the inclination angle of the processing machine head detected by the processing machine head inclinometer 14, the wire attachment point coordinate J point in the guide steel pipe 13 is determined. Find and input each.

In the %F process, calculations are made in the C process based on the processing machine guide*N pipe inclination angle detected by the inclinometer 15 in the guide steel pipe, and a point is determined at the tip coordinates, which is printed or charted as appropriate in the H process. .

In addition, in this system, observation points at arbitrary depths are ordered in advance, so this system processing is performed at each arbitrary depth, and this allows you to manage construction while looking at the charts and graphs obtained. Become.

Figures 4 and 5 show examples of charts obtained by this system processing.These charts were drawn using an X-Y plotter.

Since the program for calling existing piles has been incorporated in advance, if the drawings are drawn in sequence according to the order of the piles to be constructed, the left-right lap joint diagram shown in Figure 4 can be created using 'LSI' for the existing piles.
If this is done, the front-back lap joint diagram shown in FIG. 5 will be obtained. Here, in the figure, the numbers in the vertical column represent the penetration depth of the tip of the processing machine, the numbers in the horizontal column represent the lap joint width, and the curves in the figure represent each pile number (1-1, 1-2,...). The above drawing data, which represents the trajectory of the processing machine tip, is recorded on magnetic tape, and is
As explained in detail, the construction management system for the deep mixing method according to the present invention is capable of reproducing (drawing) and collating information such as construction depth, tide level, hull position, hull inclination, and the processing machine body. This system automatically observes the slope, etc., and processes this data by computer to determine the trajectory of the tip of the processing machine.By appropriately charting this, it is possible to quickly and accurately manage construction.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an example of offshore construction using a deep mixing processing equipment to which the construction management system according to the present invention is applied, Fig. 2 is a processing flow diagram in the processing machine tip trajectory automatic display system according to the invention, and Fig. 3 is an explanatory diagram showing a method for automatically detecting the hull position. Figures 4 and 5 are diagrams showing examples of diagrams obtained by this system processing 14-- Processing machine head inclinometer 15-- Guide steel pipe inclination needle 16-- Hull Inclined needle 17... Tide gauge Figure 2 Figure 3 olLl--Ko NO1-22 Q I 2 Figure 4 Figure 5

Claims (1)

[Claims] 111 Observation point depth automatically detected by a depth gauge and tide gauge, and ship position automatically detected by a light wave range meter,
A deep mixing process characterized by automatically displaying the tip trajectory of the processing machine based on the hull inclination angle automatically detected by an inclinometer, the processing machine observation part inclination angle, and the processing machine guide steel pipe inclination angle change. Construction management system for construction methods. (2) Detect the driving trajectory of the existing improved pile using a depth gauge, tide gauge, light wave distance meter, and inclinometer, and collect the data along one side of the existing improved pile. , and a method for constructing an improved pile, characterized in that the first improved pile is driven in a state where it overlaps one side of the already driven improved pile.