JPH0774737B2 - Pile member measurement system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a straightness and / or a driving end height of a pile member such as a steel sheet pile or a steel pipe sheet pile which is press-fitted along a planned driving line by a pile press-fitting machine or the like. The present invention relates to a pile member measuring system for measuring a load.

(Prior Art) Conventionally, for example, when driving a pile member by a hydraulic pile press-fitting machine (also having a pile removing function) known as a silent piler, the pile member is linearly moved along a planned driving line. It is important to manage the straightness of the work so that the work is lined up and the height management to align the driving end positions.

In the conventional linearity measurement for managing such linearity, for example, as shown in FIG. 8, a water thread 24 is stretched along the ground in parallel with the planned driving line 1 at a span of 10 m, for example. When holding the steel pipe sheet pile 5 with the chuck 4 by the self-propelled piler 3 and press-fitting the steel pipe sheet pile 5, for example, as shown in the drawing, the worker can set the distance from the water thread 2 stretched as the reference line to the steel pipe sheet pile 5. The press-fitting start position of the steel pipe sheet pile 4 is determined so that the distance from the water thread 2 is always equal and measured by the scale 8.

Also, regarding the height at the end of driving, when approaching the end position of driving, a worker applies a scale to measure,
Alternatively, the measurement is performed by stretching a water thread at the end height of driving.

(Problems to be solved by the invention) However, in such a straightness measurement of a conventional pile member, the work of tensioning a water thread is complicated, and the water stretched by a worker as a reference line is used. There are various problems that the thread may be accidentally cut, and that the thread cannot be stretched at the construction site, for example, when pile driving is performed on the surface of the water such as river construction.

This also applies to the measurement of height.Because it is measured using a scale, errors are likely to occur, and water threads cannot be stretched depending on the location. There was a problem of being lost.

(Means for Solving Problems) The present invention has been made in view of such conventional problems, and goes straight by press-fitting a pile member along a planned driving line regardless of the situation of a construction site. An object of the present invention is to provide a pile member measuring system capable of easily measuring both the degree and the driving end height with high accuracy.

In order to achieve this object, in the present invention, the straightness and the driving height of the pile member along the planned driving line of the pile member to be press-fitted or driven into the soil by a pile press-fitting machine or a pile driving machine. In the pile member measuring system for measuring the, a laser oscillator that emits a laser beam in the horizontal direction along the planned driving line from the target driving end height of the pile member, and a laser beam emitted by the laser oscillator. A light-receiving sensor that is detachably mountable on the tip of the pile member so as to receive light, and has a plurality of light-receiving elements arranged in a matrix in horizontal and vertical directions with respect to the laser beam, and an X-direction and a Y-direction. And a display provided with a group of LEDs arranged in a cross shape of the direction, by turning on the vertical LED of the LED group corresponding to the position of the light receiving element of the light receiving sensor that received the laser beam, Pile member Display Komidaka is, and displaying the straightness of the pile member by lighting the horizontal direction of the LED of the LED group.

(Operation) In the straightness measuring system for pile members of the present invention having such a configuration, a plurality of light receiving elements are arranged in a matrix in the horizontal direction and the vertical direction with respect to the laser beam, and a light receiving sensor. , Arranged in a cross shape in the X and Y directions
With a display equipped with an LED group, by displaying the vertical LED of the LED group corresponding to the position of the light receiving element of the light receiving sensor that received the laser beam, to display the driving height of the pile member, The straightness of the pile member is displayed by lighting the horizontal LEDs of the LED group. Therefore, the straightness and driving height of the pile member can be determined by the lighting position of the LED groups arranged in a cross shape in the X and Y directions. Both can be measured with high accuracy and extremely easily.

(Embodiment) FIG. 1 is a system explanatory view showing an example of measurement of straightness.

In FIG. 1, reference numeral 1 denotes a pile driving line, which holds a steel pipe sheet pile 5 on a chuck 4 of a self-propelled pillar 3 as shown in FIG. 1 and press-fits along the driving line 1.

In order to measure the straightness of the steel pipe sheet pile along the planned driving line 1 in the driving operation of the steel pipe sheet pile 5 by the pillar 3, the laser oscillator 10 is installed at a position a predetermined distance in front of the planned driving line 1.

Laser oscillator 10 corresponds to Class 2 and has an output of 1 mW or less He
-Ne laser light (visible light) is configured to oscillate, and since the output is low, no special measures to prevent failures are required. Further, the laser oscillator 10 is equipped with a display lamp 11 which is turned on while the laser beam is being oscillated, and reception control for turning on / off the laser oscillation in response to a remote control command from the laser receiver which will be made clear later. It has a function.

The laser oscillator 10 is installed so that the laser beam 14 runs right above the planned driving line 1, and the height H of the laser beam 14 with respect to the planned driving line 1 is set, for example, to be the completion height for driving the steel pipe sheet pile 5. ing. Of course, the height of the laser beam 14 may be set to an appropriate height, but the height H of the laser beam 14 is driven in the initial state in order to measure the pile driving end height which will be made clear later. It is desirable to set to.

On the other hand, the laser beam 14 at the joint 6 provided at the front part of the steel pipe sheet pile 5 supported at the driving start position by the pillar 3
A laser receiver 12 is attached to the position where the contact strikes.

FIG. 2 is an explanatory view showing the laser receiver 12 of FIG. 1 taken out and shown in a state of being attached to the steel pipe sheet pile 5.

In FIG. 2, since the steel pipe sheet pile 5 has the joint 6 in the front along the planned pile driving line, the light receiver main body 16 of the laser light receiver 12 is attached to the front surface of the joint 6 by the magnet 15. The light receiver main body 16 has a laser diffusing surface 17 obliquely arranged at an angle of θ = 45 ° with respect to the mounting surface of the magnet 15, and a laser beam is provided on the laser diffusing surface 17 or its front window (not shown). A cursor 18 for observing the position of the laser spot formed by hitting is drawn.

The laser diffusing surface 17 is finished to have a surface state that diffuses and reflects the laser light in order to make it easier to see the laser spot when hit by the laser beam.

A laser ON / OFF switch 19 is attached to the tip of the receiver body 16.
Is provided, and the remote control transmission unit 20 is incorporated in the upper part thereof.

FIG. 3 is a block diagram showing a remote control transmission unit 20 incorporated in the second light receiver main body 16, in which the output of the laser ON / OFF switch 19 is given to the transmitter 21, and the laser ON / OFF switch 19 is supplied.
When the switch-on signal is obtained, the transmitter 21 operates to send a remote control signal (control radio wave) from the transmitting antenna 22 to the laser oscillator 10 shown in FIG. ing. Of course, the transmitter 21 is operated by the built-in battery.

Next, the straightness measuring process will be described with reference to FIG.

As shown in FIG. 1, the steel pipe sheet pile 5 to be newly driven is attached to the chuck 4 of the pillar 3 and set at the driving start position, and in this state, the joint 6 at the front part of the steel pipe sheet pile 5 is moved to the position shown in FIG. As shown in FIG. 5, the laser receiver 12 is attracted and fixed by the magnet 15 at the height at which the laser beam 14 strikes.

In this state, the laser ON / OFF switch provided on the receiver body 16
When the switch-on operation of 19 is performed, a remote control radio wave for laser oscillation is transmitted from the remote control transmission unit 20 to the laser oscillator 10, and while the remote control radio wave is received by the receiver built in the laser oscillator 10, the remote control radio wave is obtained. , Laser oscillation is performed to irradiate the laser beam 14 directly above the planned implantation line 1.

The laser beam 14 emitted from the laser oscillator 10 strikes the laser diffusion surface 17 of the laser receiver 12, and the laser diffusion surface 17
The worker 23 sees the position of the laser spot at 17 from the lateral direction to measure the straightness. That is, the laser diffusion surface 17
If the laser spot is visible on the center 18a of the cursor 18 or the cursor on the vertical axis passing through the center 18a, it is understood that the steel pipe sheet pile 5 is at the position where the correct straightness along the planned driving line 1 is obtained. On the other hand, when the laser spot is displaced from the cursor center 18a of the laser diffusion surface 17, the steel pipe sheet pile 5 is moved by the pillar 3 so that the laser spot hits the cursor center 18a or a vertical cursor line passing through the cursor center 18a. The driving position of will be corrected.

Of course, as shown in FIG. 1, when the measurement of the straightness is completed, the laser receiver 12 is detached from the steel pipe sheet pile 5 and the press-fitting work by the pillar 3 is performed.

Next, with reference to FIG. 4, the process of measuring the driving end height will be described.

In FIG. 4, the steel pipe sheet pile 5 press-fitted by the pillar 3
When is close to the driving end height, the laser receiver 12 is attached to the tip (crown) of the steel pipe sheet pile 5 by the magnet 15 as shown in FIG.

In FIG. 4, since the driving is completed at a position below the chuck 4 of the pillar 3,
In this case, the adapter 7 is attached to the tip of the steel pipe sheet pile 5 and press-fitted into the final driving position.

When the laser receiver 12 is attached to the tip side of the joint 6 located in the front part of the steel pipe sheet pile 5 in this way, the laser ON / OFF switch 19 provided in the receiver main body 16 is switched on, and the laser oscillator 10 The laser beam 14 is emitted. When the position of the laser spot hitting the laser diffusion surface 17 by the irradiation of the laser beam 14 reaches the position hitting the center 18a of the cursor 18 or the horizontal cursor line, for example, the driving by the pillar 3 is terminated.

FIG. 5 shows the mounting state of the laser receiver 12 for measuring the straightness and height when driving an H-shaped pile as a pile member. The right side of the H-shaped steel pile 24 is the planned pile driving line. If it is in the direction
Similarly, 16 may be attracted by the magnet 15.

FIG. 6 shows an example of a steel pipe sheet pile as a pile member. A laser receiver is provided on the right side of the steel pipe sheet pile 25 in the direction of the planned pile driving line.
The 12 light receiver main bodies 16 are attracted by the magnet 15,
In this case, the shape of the attraction surface of the magnet 15 is an oblique attraction surface such that the mounting surface of the light receiver main body 16 is orthogonal to the laser beam.

FIG. 7 shows another embodiment of the laser receiver of the present invention. In this embodiment, the position where the laser light is received is detected and an LED is used for high-intensity display. And

In FIG. 7, the laser receiver 12 includes a light receiving portion 28 and a display portion.
Composed of 30. In the light receiving portion, a light receiving sensor having a plurality of light receiving elements arranged in a vertical and horizontal Y-Y matrix is arranged behind the interference filter 32 provided on the surface, and the interference filter 32 outputs light only in the laser wavelength range. An amplifier 36 detects the laser light transmitted through the interference filter 32 and detects the laser light passing through the interference filter 32 by one of the light receiving element groups 34a and 34b.
Output to.

The display unit 30 includes a high-intensity LED group 4 behind the smoke filter 38.
0a and 40b are arranged vertically in the vertical and horizontal directions, and the LED driver 42 that receives the light reception output from the amplifier 36 drives the corresponding LED to emit light to display the laser light reception position. At this time, since the smoke filter 38 is provided on the front surface,
The LEDs are clearly visible with sufficient contrast.

The vertical LED group 40a serves as a display for measuring the linearity of the pile, and the horizontal LED group 40b serves as a display for measuring the height of the pile.

Further, the smoke filter 38 provided on the display unit 40 may be drawn with cursors 46a and 46b in the vertical and horizontal directions as shown in the drawing.

As described above, according to the present invention, a light receiving sensor in which a plurality of light receiving elements are arranged in a matrix in the horizontal direction and the vertical direction with respect to a laser beam, and a cross in the X direction and the Y direction. And an indicator having a group of LEDs arranged in a line,
By turning on the vertical LED of the LED group corresponding to the position of the light receiving element of the light receiving sensor that received the laser beam, the driving height of the pile member is displayed, and by turning on the horizontal LED of the LED group. Since the straightness of the pile member is displayed, both the straightness and the driving height of the pile member can be measured with high accuracy and extremely easily by the lighting position of the LED groups arranged in a cross shape in the X and Y directions. be able to.

Furthermore, since the laser oscillator can be turned on and off on the side of the laser receiver attached to the pile member, if the laser oscillator is first adjusted in position and installed, then only the laser receiver can be attached and detached on the pile member side. Thus, it is possible to easily measure the straightness and the end height of driving.

[Brief description of drawings]

FIG. 1 is a system explanatory view showing an example of straightness measurement according to the present invention by way of an example of press-fitting work of a steel pipe sheet pile, and FIG. 2 is an exploded view showing an embodiment of a laser receiver used in the present invention. FIG. 3 is a circuit block diagram showing an embodiment of the circuit configuration of a laser receiver, FIG. 4 is an explanatory diagram showing measurement of the driving height according to the present invention, and FIG. 5 is a laser receiver for an H-shaped steel pile. 6 is an explanatory view showing the mounting of the laser receiver on the steel sheet pile, FIG. 7 is an explanatory view showing another embodiment of the laser display used in the present invention, FIG. 8 is an explanatory diagram showing conventional measurement of linearity. 1: Target line 3: Silent pillar 4: Chuck 5: Steel pipe sheet pile 6: Joint 7: Adapter 10: Laser oscillator 11: Indicator 12: Laser receiver 14: Laser beam 15: Magnet 16: Receiver main body 17: Laser Diffusing surface 18: Cursor 19: Laser ON / OFF switch 20: Remote control transmitter 21: Transmitter 22: Transmitter antenna 24: H-shaped steel pile 25: Steel sheet pile 28: Light receiver 30: Display unit 32: Interference filter 34: Light receiver Sensor 36: Amplifier 38: Smoke filter 40a, 40b: LED group 42: LED driver 46a, 46b: Cursor

Front page continuation (72) Inventor Seio Kitamura 1784 Takasu, Kochi City, Kochi Prefecture 4 Giken Mfg. Co., Ltd. (56) Reference JP-A-51-29957 (JP, A) SAIKAI 57-91844 (JP) , U) Japanese Patent Publication Sho 54-9904 (JP, B2)

Claims (1)

[Claims] 1. A pile member measuring system for measuring the straightness of a pile member to be press-fitted or driven into the soil by a pile press-fitting machine, a pile driving machine, or the like and a driving height of the pile member. In the above, a laser oscillator that emits a laser beam in the horizontal direction along the planned driving line from the target driving end height of the pile member, and the pile member of the pile member so as to receive the laser beam emitted by the laser oscillator. A plurality of light receiving elements which are detachably attachable to the tip and have a plurality of light receiving elements arranged in a matrix in the horizontal and vertical directions with respect to the laser beam, and a light receiving sensor arranged in a cross shape in the X and Y directions. With a display equipped with an LED group, by turning on the vertical LED of the LED group corresponding to the position of the light receiving element of the light receiving sensor that received the laser beam, the driving height of the pile member Display and LED group The straightening degree of the pile member is displayed by turning on the horizontal LED of the pile member measuring system.