JPH06158991A - Construction management method of box body propulsion method - Google Patents

Abstract

(57) [Summary] [Purpose] In a box body propulsion method in which a large number of concrete boxes are arranged, a propulsion jack is arranged between the boxes, and the boxes are sequentially propelled, relying on conventional surveying work and operator judgment. This makes it possible to easily, quickly, and accurately manage the state of propulsion of the box body, save labor, and improve construction accuracy. [Structure] The propulsion jack 2 is provided with a displacement converter 8, and the power unit 13 of the propulsion jack 2 is connected to a pressure transmitter 14.
The limit switch 15 is installed on the piston head of the propulsion jack 2, and the output of the displacement converter 8 and the pressure transmitter
The hydraulic pressure data by 14 and the limit switch 15 and the number of jacks used are introduced into the computer 11 and analyzed to analyze the movement distance and posture of each box, and the relationship between the hydraulic balance and the thrust operation method and the posture of each box. Computerized hydraulic operation method that keeps the posture when moving the box closest to the heading and design
It is displayed on the display 17 of 11 and reflected in the next cycle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of managing construction of box propulsion in a box propulsion construction method in which a large number of concrete boxes are arranged and a propulsion jack is arranged between the boxes to sequentially propel the box. It is about.

[0002]

2. Description of the Related Art As one of the propulsion methods for pushing a concrete box into the ground to construct a tunnel-like underground structure,
An infinite self-propelled forward construction method as shown in FIG. 4 is known. This is a large number (3
(More than one) concrete boxes 1 are arranged, and a propulsion jack 2 is arranged between the boxes 1.

Further, a hood-shaped blade opening 3 is attached to the tip of the leading box 1, a PC steel wire 4 as a pulling member is arranged so as to penetrate all of the boxes 1, and the end thereof is provided. Fixing tool 5
And tow jack 6 are installed. Each box body 1 is provided with a hood-like skirt 7 at the rear end except for the rearmost one, and the skirt 7 is slidably engaged with the front end of the box body 1 continuing to the rear.

In this way, the portion of the blade opening 3 is excavated, and the stroke of the propulsion jack 2 provided between the box body 1 at the front and the box body 1 at the rear of the box body is extended and moved forward by a fixed amount, and the whole box is opened. If the body 1 moves forward by a certain amount, the same operation is repeated from the beginning. In that case, in order to advance the first box body 1 at the front, the fixing tool 5 and the towing jack 6 are made free, and the frictional resistance due to the own weight of the rear box body 1 and earth pressure is used as a reaction force to make the first box body 1 The propulsion jack 2 between the first and second boxes 1 is activated.

Next, the second box 1 is moved forward by the fixing device 5
And the tow jack 6 are fixed to the PC steel wire 4, the tow jack 6 is operated to tension the PC steel wire 4, and the first box 1 and the third box 1 are used as a reaction force to the second box. It is performed by the propulsion jack 2 between the first and third boxes 1.

When the third box 1 is moved forward, the first box 1 and the second box 1 are acted as reaction forces and the towing jack 6 is operated to pull the box.

In such a propulsion method, when propelling a plurality of boxes, the propelling direction may be curved, the slope may be descending / climbing, or both.
In such a case, the construction standard is to make the posture of each box during propulsion close to the design value, but specifically, the moving distance, pitching, and yawing of each box are always grasped and How to handle the propulsion jack is important.

[0008]

Conventionally, the construction management of such box propulsion work has been made by grasping the moving distance of the box and the posture of each box by surveying, and the hydraulic control of the jacks is done by each operator. Was going by.

With respect to surveying, the larger the number of boxes, the longer the working time. Especially when the moving direction draws a curved trajectory, a considerable amount of time is also spent on coordinate calculation after surveying.

If the operation of jacks depends on the intuition of the operator, a problem due to a shortage of experienced persons arises, and it is necessary to constantly teach and educate the operator and instruct the balance of pressure and the method of acting thrust.

The object of the present invention is to eliminate the inconveniences of the above-mentioned conventional examples, to eliminate the need for relying on conventional surveying work and operator judgment, and to manage the propulsion state of box propulsion easily, quickly and accurately, An object of the present invention is to provide a construction management method of the box body propulsion method, which can save labor and improve construction accuracy.

[0012]

In order to achieve the above-mentioned object, the present invention provides a box body propulsion construction method in which a large number of concrete boxes are arranged, a propulsion jack is arranged between the boxes, and the boxes are sequentially propelled. The propulsion jack is equipped with a displacement converter, the output from this displacement converter is introduced into a computer, and the distance traveled and the posture of each box is analyzed and analyzed, or a pressure transmitter is installed in the power unit of the propulsion jack. A limit switch is installed on the piston head of the propulsion jack, and the hydraulic pressure data and the number of jacks used by these pressure transmitters and limit switches are introduced into the computer, and analyzed to analyze the hydraulic balance, the thrust action method, and the posture of each box. The hydraulic operation method that keeps the posture when moving the box closest to the design is displayed on the computer display, and the next cycle Or a combination of both, and a digital display panel is provided on the power unit of the propulsion jack to display the data indicating the moving distance and posture during the movement of the box and the hydraulic data digitally. It is a summary.

[0013]

According to the present invention as set forth in claims 1 to 3, there is no need to rely on the conventional surveying work or operator's judgment, and the current construction status is always grasped by using sensors, measuring instruments and computers. At the same time, by automatically analyzing each data and instructing the target display method for the next cycle on the computer display, it is possible to save labor and improve the construction accuracy.

According to the present invention as set forth in claim 4, in addition to the above operation, the power unit of the propulsion jack digitally displays the data indicating the moving distance and the posture during the movement of the box and the hydraulic pressure data for all the units, and the operator. Is performing the optimal hydraulic operation method, is the box moving according to the design line,
Construction can be performed while grasping the degree of error with the design.

In this way, an error in the posture or design of the box is caused in the office where the computer is installed, or
In addition to being able to grasp the details in real time and in real time, the hydraulic operation is clearly instructed, so even inexperienced people can surely do it with a single hour of instruction.

[0016]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is an explanatory view showing an embodiment of a construction management method of the box body propulsion method of the present invention, FIG.
FIG. 3 is a front view of the digital display panel.

The present invention is also a case of the infinite self-propelled forward construction method as shown in FIG. 4, in which 1 is a concrete box and 2 is a concrete box.
Is a propulsion jack.

Of the many propulsion jacks 2 arranged between the concrete boxes 1, wire type displacement converters 8 are provided on the propulsion jacks 2 near the four corners of the box 1, and the displacement converters 8 are provided. The personal computer 11 installed in the office 12 is connected via the transmission device 9 and the multiplex transmission unit 10. Reference numeral 17 in the figure is a display of the personal computer 11.

Further, the power unit 13 of the propulsion jack 2
The pressure transmitter 14 is installed on the piston head of the propulsion jack 2 and the limit switch 15 is installed on the piston head of the propulsion jack 2. This power unit 13
Is mainly a hydraulic pump, but the pressure transmitter 14 can use a hydraulic gauge installed at the discharge port of the hydraulic pump.

These pressure transmitter 14 and limit switch 15
Is also connected to the personal computer 11 via the transmission device 9 and the multiplex transmission unit 10. In addition, power unit 13
A digital display board 16 is provided in the computer, and the digital display board 16 is also connected to the personal computer 11 via the transmission device 9 and the multiplex transmission unit 10.

Although not shown, each box 1 is equipped with a concrete strain gauge, a rebar stress gauge, an inclinometer, a subsidence gauge, an underground exploration instrument, etc., and these are connected to a personal computer 11 via a converter. You may do it.

Next, the method of the present invention using such an apparatus will be described. As described above, the present invention is the case of the infinite self-propelled forward construction method as shown in FIG.

As shown in FIG. 2, the pulling jack is operated to tension the PC steel wire, and after confirming the reaction force by the other boxes 1, the propulsion jack 2 is set between the boxes 1.

Then, the target hydraulic pressure of each power unit 13 is set, the operation jack hydraulic valve is opened and closed, and the box 1 is propelled.

Here, the moving distance and the direction of the box 1 are confirmed. The output from the displacement converter 8 is introduced into the personal computer 11 and analyzed by the personal computer 11, and the analysis result is displayed on the display 17. To grasp the moving distance and posture of the box 1.

Further, the pressure transmitter 14 and the limit switch 11
The hydraulic pressure data and the number of jacks used are introduced into the personal computer 11 and analyzed by the personal computer 11 to find the relationship between the balance of hydraulic pressure and the action method of thrust and the posture of each box, and move the box closest to the design. Personal computer 11
Display 17 on. This display content is reflected in the next cycle.

On the other hand, as shown in FIG. 3, the personal computer 11 digitally displays on the digital display panel 16 the data indicating the moving distance and posture of the box and the hydraulic pressure data for all the units. By looking at this, it is possible to carry out the construction while grasping whether the operator is performing the optimum hydraulic operation method, whether the box is moving according to the design line, and how much the error with the design is.

By the way, a concrete strain gauge, a reinforcing bar stress gauge, an inclinometer, a subsidence gauge, an underground exploration machine, etc. are attached to the box body 1, and these are connected to a personal computer 11 via a converter.
If the personal computer 11 is connected, the presence / absence of damage to the box 1 and the deformation of the surrounding ground can be grasped, and the corresponding method can be examined.

[0029]

As described above, the construction management method of the box body propulsion method according to the present invention eliminates the need for relying on the conventional surveying work and the judgment of the operator at all, and the box body propulsion can be performed easily, quickly and accurately. The propulsion state can be managed, and as a result, labor saving and improvement in construction accuracy can be realized.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an embodiment of a construction management method of a box propulsion method of the present invention.

FIG. 2 is a flow chart showing an embodiment of a construction management method of the box propulsion construction method of the present invention.

FIG. 3 is a front view of a digital display panel.

FIG. 4 is a vertical sectional side view showing an infinite self-propelled forward construction method.

[Explanation of symbols]

 1 ... Box 2 ... Propulsion jack 3 ... Blade 4 ... PC steel wire 5 ... Fixing tool 6 ... Towing jack 7 ... Skirt 8 ... Displacement converter 9 ... Transmission device 10 ... Multiple transmission unit 11 ... Personal computer 12 ... Office 13 ... Power unit 14 ... Pressure transmitter 15 ... Limit switch 16 ... Digital display panel 17 ... Display

Front page continued (72) Inventor Toru Ikeda 1-3-15 Awaza, Nishi-ku, Osaka City, Osaka Prefecture Kashima Construction Co., Ltd. Osaka Branch (72) Inventor Susumu Ando 1-3-15 Awaza, Nishi-ku, Osaka City, Osaka Kashima Construction Co., Ltd. Osaka Branch (72) Inventor Kazuhiko Fujimoto 1-3-15 Awaza, Nishi-ku, Osaka City, Osaka Prefecture Kashima Construction Co., Ltd. Osaka Branch

Claims (4)

[Claims] 1. In a box body propulsion construction method in which a large number of concrete boxes are arranged, a propulsion jack is arranged between the boxes, and the box is propelled sequentially, a displacement converter is provided in the propulsion jack.
A construction management method for the box propulsion method, characterized in that the output from this displacement converter is introduced into a computer and analyzed to grasp the moving distance and posture of each box. 2. In a box body propulsion method in which a large number of concrete boxes are arranged and a propulsion jack is arranged between the boxes to sequentially propel the box, a pressure transmitter is provided in a power unit of the propulsion jack and a piston of the propulsion jack. A limit switch is installed on the head, and the hydraulic pressure data and the number of jacks used by these pressure transmitters and limit switches are introduced into a computer and analyzed to find the relationship between the hydraulic balance and the thrust action method and the posture of each box. , A construction management method for the box body propulsion method characterized by displaying on a computer display a hydraulic operation method that maintains the posture of the box body closest to the design and reflecting it in the next cycle. 3. A box-body propulsion method in which a large number of concrete boxes are arranged, a propulsion jack is arranged between the boxes, and the box is propelled sequentially, and a displacement converter is provided on the propulsion jack,
In addition, a pressure transmitter to the power unit of the propulsion jack,
A limit switch is installed on the piston head of the propulsion jack, and the output of the displacement converter, the hydraulic pressure data from the pressure transmitter and the limit switch, and the number of jacks used are introduced into a computer and analyzed to analyze the moving distance and posture of each box. And the relationship between the hydraulic balance and the thrust action method and the posture of each box, and the hydraulic operation method that keeps the posture when moving the box closest to the design is displayed on the computer display. A construction management method of the box body propulsion method characterized by being reflected in the cycle. 4. The power unit of the propulsion jack is provided with a digital display panel, and data indicating the moving distance and posture during movement of the box and hydraulic pressure data are digitally displayed on the digital display panel.
Construction management method for the box body construction method described.