KR20070120207A - Pile marker and final piling test recorder - Google Patents

Abstract

A pile marker and final piling test recorder are provided to prevent poor construction using an advance-warning device during busy work by grasping a state of a work process exactly. In order to detect displacement of a pile(P) during piling work in which the pile is driven into the ground for foundation work of an upper structure, a pile marker(30) is attached to the pile for the marker of an electronic distance meter. A laser beam is aimed at the pile marker using the electronic distance meter, which is connected to a wire(15) or a band rotated with rollers(14) wound around a leader(D). A laser detects movement of the marker caused by displacement of the pile. The pile marker and the electronic distance meter are interconnected by a pile lot(31), and makes continuous measurement regardless of vibration of the leader and pile.

Description

Pile Marker and Final Piling Test Recorder}

1 is a view of the equipment during the pile driving operation.

2 is a perspective view of testing pile penetration and final penetration using pile markers.

3 is a plan, elevation and side view of the pile marker.

4 is a configuration block diagram of measurement and recording.

 <Description of Symbols for Main Parts of Drawings>

 A: Equipment D: Lead

 H: ram housing P: file

11: lightwave distance meter 14: Lola

15: wire 30: marker

In the construction work, pile driving work is essential during the foundation work of superstructure. If the basic requirements are satisfied by the improvement of pile quality and the development of equipment, the failure rate of driving work is very low. That is, if the correct working position is preceded by the attitude and precision survey of stable horizontal work of the equipment, it is possible to perform the fine work.

In general, the measurement method of the piercing operation is to measure the penetration depth with a tape measure or omit altogether.

Naturally, there is no way to judge accuracy or verify the fidelity of a task.

Although a method of automatic measurement and recording has been attempted at times, it has not been put to practical use because it does not eliminate the impact of tremendous shock and vibration during driving.

Although the automatic measurement method has been registered in the patent (Notice No.1995-0004586), it is an obsolete sensor that detects the angle of the file with severe vibration and shock.It can capture the tilting direction but cannot quantify the error. It could not be applied to the construction that requires precise construction of the product.

It is very difficult to eliminate the effects of shock, noise and vibration during driving.

It is difficult to install a measuring sensor or measuring device to repeatedly measure the displacement of pile piles into the ground due to impact and displacement.

There is a need for a transfer method of displacement that minimizes the effects of vibrations and shocks while still being in motion with the pile.

In the pile driving work to pile the pile into the ground for the foundation work of the superstructure during construction, the pile marker 30 and the pile marker attached to the pile P for the target of the conventional wave range finder to detect the displacement of the pile. The invention of the final penetration test measurement and recording device using.

The pile driving work is a hammer that is supported by the guide rail installed in the lid (D) of the pile driving machine (A) and falls freely from the top to the bottom. The quality of construction can be measured only by the data such as penetration length and recoil length for each blow.

In order to minimize the influence of vibration at the time of driving or to correct the error of the pile displacement due to the vibration, that is, the gap between the pile marker 30 and the distance measurer 11 is affected only by the vertical displacement of the pile. Measure the displacement of the marker.

In the working scene, the equipment (A) is kicked by the boom (D) as shown in Figure 1, and the ram housing (H) of the rider is hitting the pile (P) by placing it on the lid.

Figure 2 is a perspective view of testing pile penetration and final penetration using pile markers.

 The pile marker 30 is fixed to the surface of the pile P with adhesive or bolts,

The laser beam is directed to the pile marker 11 by winding the roller 14 on the lid D and using the optical wave range finder 11 connected to the rotating wire 15 or the band, thereby controlling the movement of the target according to the displacement of the pile. An illustration of a device that allows a laser to be sensed.

 In the pile driving equipment (A), a displacement measuring device composed of an angle measuring device for measuring the degree of displacement of the central axis of the pile remaining on the ground, and a displacement measuring device for measuring the length of the pile and the spatter length; Calculates, displays, records, and writes a working daily report of the input data such as studded length, splatter length, and number of hits for each section input through the measuring instruments of the real time. When configured as a controller, accurate site quality management, construction data analysis and review are recorded.

The pile marker 30 and the conventional wave range measurer 11 are connected to the pile rod 31 so that the lid and the pile can continuously measure irrespective of vibrations such as momentary torsion.

In addition, a rod placed on the iron plate 33, the rod 33 is to keep the distance between the ground and the distance meter even if the lid riser up and down.

3 is an example of the structure of a file marker.

In the substrate 35 that is bent in the horizontal direction so as to be in close contact with the circumferential surface (D) of the pile, the adhesive 36 is attached to the back side and the laser target plate 37 is positioned on the front side perpendicular to the substrate.

The target plate has a hole 38 for supporting the pilot rod 31 which keeps the direction of the laser beam irradiation constant, and at the lower part of the target plate there is a brace 39 so that the target plate is not touched by a momentary hit.

4 is a block diagram showing the configuration of a title apparatus.

Signals generated by the respective measuring instruments 21, 22, 30, and 31 are input to the signal conversion device 41.

The controller 40 operates a signal converter for transmitting data, a keyboard 42 for inputting any necessary data, a remote controller 43 for easy operation of the controller, a memory 44 for storing data, and computes processed data. It consists of a monitor (45) to display the processed data, the printer and recorder (46) to output the processed data, and a warning light and a rich man (4) to generate a warning when the displacement exceeds the reference value. do.

 The system described above can automatically record and save the work status such as driving length, splatter length, and slope of m recovery file in real time, and can be always output to monitor and recorder / printer. Easy to analyze and review quality control and construction data The system can also compare and analyze the initial reference values and the detected data to produce an output signal 48 that corrects the posture of the lid, file or casing as needed.

 Workers or managers can accurately grasp the work progress and perform reliable construction. Even during busy work, it can prevent poor construction through the pre-warning device, and record the precise work process.

Claims (2)

  A final penetration test measurement and recording device using pile markers and pile markers that target pile piles attached to piles and measure and record displacements of pile markers while maintaining a constant height in the ground of the conventional wave range finder. In claim 1, the marker is mechanically connected to the optical wave range measuring device and the final penetration test measurement and recording device using the pile marker and pile marker to continuously measure in one direction even if the position between the pile and the lid change.

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