JPS5894525A - Automatic recorder for driving of pile - Google Patents

Abstract

PURPOSE:To simplify plan for pile driving as well as raise its reliability by providing a detecting means to detect the sent out amount and driving amount of a wire connected to a hammer, a detecting means with a vibration sensor to detect the number of striking times, and an arithmetic recorder for the cumulative values of these signals. CONSTITUTION:The driving amount of a pile 4 is detected by a driving detection means 5 from the sent-out amount of a wire 8 provided between a hammer 2 and a drum 7. Also, the striking times of the hammer 2 are detected by a striking times detection means 6 consisting of vibration sensors arranged in contact with or in close proximity to the pile 4 or a guide leader 11. The detected values from the driving times detection means 6 and the driving amount detection means 5 are cumulated in the first and second counters 10 and 11, and each count value of these counters 10 and 11 is added to an arithmetic recorder 12 for every striking time for calculation and recording.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic pile driving recording device. For example, in a large structure with a large number of foundation piles, it is desirable to record the condition of the ground for each foundation pile.

However, the conventional automatic pile driving recorder is very cumbersome to operate to record the driving condition of each pile, making it impractical to record the driving condition of all piles. could not be done.

The object of the present invention is to eliminate the above-mentioned conventional troubles.

In order to achieve the above object, the present invention is directed to a guide reader 1 installed on the ground, as shown in FIGS. 1 and 2 as a preferred embodiment thereof.

and a device that automatically records the driving state of the pile 4 that is driven into the ground 3 by being hit by the hammer 2 that is guided by the guide reader 1 and performs additional writing operations. , First, it has a driving amount detecting means for measuring the driving lid Δl of the above-mentioned 4 every time the hammer 2 is struck; and 5 a means for detecting the number of strikes n of the hammer 2. . moreover,
The driving amount detecting means 5 detects the feeding amount of the wire 8 which has been bitten out from the tofu 7 and is connected to the hammer 2, i1gI of the hammer 2! -, and the detection means 6 for the striking times 55 (n) comprises a vibration sensor 9 disposed in contact with or in the vicinity of the pile 4 or the guide leader l. 8
It has first and second counters 10 and 11 which record the cumulative value ΣΔl of the feeding lid and the main extreme value of the detected striking nail as counted values, respectively. second counter t
o, 11, each count value nl, n2 is applied to the hammer ~ 2
The characteristic is that the information is inputted to the arithmetic processing unit 12 for arithmetic processing and recording for each batting time. Here, the detection means 6 is a mechanical-electrical conversion element such as an H-1 element or a sound-to-pulling conversion thread.
The output is sent to the second counter 11 as a count signal after unnecessary information is removed through a frequency noise tower level discriminator 2 timer circuit and the like. Further, the driving detection means 5 detects the zero rotation cover of the drum chuck, for example, by a digital encoder, or detects the driving by the wire 8.
A digital encoder detects the amount of rotation of the tension roller, which rotates while in direct contact with the

The detection lid is used as the count value of the first counter 0.

Since the wire 8 vibrates greatly due to the impact of the hammer 2 when it is struck, the amount of wire 8 to be fed out can be determined by measuring the extreme value of the amount of rotation of the drum 7. Preferably, this ensures that accurate information regarding the payout lid of the wire 8 can be obtained without constantly monitoring the movement of the wire 8 and even if the wire 8 is temporarily loosened by the impact of the hammer 2.

The arithmetic processing unit 12 is a CPU (central processing unit 11
iL) A, 12a, CRT display 12b, cassette Chibre++-\kneader 12c, etc. And the first above,
The number of strikes for the purchase amount of the pile 40 is calculated based on the respective count values nl and n2 of the second counters 0 and 11,
The number of strikes required for a certain amount of penetration of the pile 4 or the penetration depth of the 6 piles is recorded in stages, and the above-mentioned cassette tape recorder 1
2c on the magnetic tape. And what information was recorded on this tape?

After taking it home and processing it with another processing device, you can use a line printer to create a graph showing the number of strikes against the purchased amount for each penetration depth, or display the graph on a CRT display to determine the driving condition of pile 4. Information regarding MK can be provided reliably.

In addition, if necessary, immediately display the CRT display 12 at the desk.
It is possible to display a graph according to bk.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an embodiment of the device according to the present invention;
FIG. 2 is a block diagram showing its electrical configuration. 1...Guide leader 2--○1 hammer 3...Soil 4...Pile 5...-Drive amount detection means 6--Number of impact detection means 7...Drum 8--Wire- 9...Sensors 10, 11.--1st. Second counter 12...Arithmetic processing means Patent applicant Obayashi Corp. Agent Patent attorney - Ken Iro I diagram procedure amendment (method) % formula % 1. Indication of case 7 1982 Patent application No. 192436 Name of invention Pile driving automatic recording device 3, person making the amendment Representative director - Yoshi Obayashi Department 4, agent Attachment Tooshi procedure city J-E = Ursu (self-motivated) Showa b71! 1111 Director General of Patents Wakasugi Sodaiden 1, Indication of Matter A'1 1982 Patent Application No. 1924363-j2, Name of the invention Automatic pile driving recording device U 3, Relationship with the amendment stone case Special applicant representative director Yoshihito Hai The full text of the Bumei Jlfl book and drawing No. 53 Figure 6, content of amendments (1) The full text of the Meiji 411m is supplemented as attached 11-4-1.
(2) Add Figure 3 of the drawing. L.S. 1 Amended specification 1, name of the invention, automatic pile driving recording device 2, guided by a guide leader erected on the claim area, and performing an attack action while being guided by the guide leader. In a device for automatically recording the driving state of a pile driven into the ground by being hit by a hammer, a driving amount detection means for measuring the driving amount of a -F2 pile every time the hammer is struck. and a means for detecting the number of strikes of the hammer, and the striking amount detecting means C measures the amount of wire drawn out from the drum and connected to the hammer between strikes of the hammer. The above-mentioned number of hits detection 1
The stage includes a vibration sensor disposed in contact with or close to the pile or the guide leader, and further includes first and second vibration sensors that record the cumulative value of the wire payout amount and the cumulative value of the detected number of strikes as counted values, respectively. 2 counters, and these 1st. An automatic pile driving recording device characterized in that each counted value of the second counter is input into a calculation processing device each time the hammer is struck for calculation processing and recording. 3. Detailed Description of the Invention The present invention relates to an automatic pile driving recording device. For example, in a large structure with a large number of foundation piles, it is desirable to record the ground condition for each foundation pile. For this reason, when driving each foundation pile by impact, it has been a conventional practice to measure the amount of driving per one impact for each of the driving depths of the eight piles, and to record this. It was being done. It is desirable that the driving status of such piles be accurately recorded for all piles. Therefore, devices have been developed in the past that automatically record the driving state of piles. However, although conventional devices are configured to be able to automatically record the driving of piles, it is not always easy to set up and install the devices, and the state of driving of piles cannot be easily recorded. It was difficult to say that it was possible to measure and measure accurately. That is, in the conventional automatic pile driving recording device of this type, as shown in FIG. The rotary encoder 22 detects the amount of rotation of the pulley 20 at the moment when the ball is struck, and the detected output of the encoder 22 is recorded. For this reason, first, prior to driving the pile 4, a setup operation for applying the pulley 20 to the pile 4 must be performed for each pile, which is a hassle. Furthermore, a problem with such conventional devices is that the contact between the pulley 20 and the pile 4 is not always maintained stably due to vibrations and shocks generated when the hammer hits the pile 4. In other words, the pulley 20 momentarily floats due to the impact when the pile 4 is driven, and therefore information regarding the accurate amount of pile driving cannot be obtained from the rotary encoder 22. Other conventional examples include detection using a group of fixed contacts arranged in large numbers at predetermined intervals along the pile 4, for example. However, with this device, it is extremely troublesome to attach a large number of contact groups, and depending on the spacing between the contacts, it is difficult to detect the intermediate ring. In any case, the conventional automatic pile driving recording device of this type requires very troublesome setup work and is not suitable for use at sites where a large number of piles are to be installed ((
However, it is very difficult to keep records of the driving conditions of all the piles.)
Furthermore, the reliability of the records was not necessarily sufficient. This invention was made in view of the above-mentioned conventional problems, and its purpose is to (b) enable recording of the driving state of resistors with very simple setup work;
This makes it possible to easily record the driving conditions of all piles even in the field where a large number of piles are being driven, and the records are not affected by the impact etc. when driving the piles. C is to make it extremely reliable without any
To provide an automatic pile driving recording device (-). In a device that automatically records the driving state of a pile that is driven into the ground by being hit by a hammer that performs an impact action guided by a guide leader, the driving amount of the pile is recorded every time the hammer hits the pile. It has a driving amount detection means for measuring the number of strikes of the hammer, and a means for detecting the number of strikes of the hammer. The number of strikes detection means includes a vibration sensor placed in contact with or close to the pile or the guide leader, and further measures the cumulative value of the amount of wire payout and the detected number of strikes. It has a first and second counter that records the cumulative value of the number of times as a count value, respectively,
These first. The present invention is characterized in that each count value of the second counter is input to the arithmetic processing unit ff each time the hammer is struck, and the arithmetic processing and recording are performed. Hereinafter, preferred embodiments of the present invention will be described based on the drawings. FIGS. 1 and 2 show an embodiment of the automatic +J recording apparatus according to the present invention. In the same figure, a train I is guided by a guide reader 1 set up on the ground. In a device that automatically records the driving state of a pile 4 that is driven into the ground 3111 by being hit by a hammer 2 guided by the guide leader 1 and performing a striking action, first, the [I] A driving amount detecting means 5 is provided for measuring the impact collapse Δ1 every number of times the hammer 2 is hit. Along with this, means 6 for detecting the number of strikes n of the hammer 2 described in -1 is provided. Roughly 11--The driving detecting means 5 detects the amount of wire 8 being fed out from the drum 7 and connected to the hammer 2 between the strikes of the hammer 2.
It is configured to Further, the means 6 for detecting the number of hits n comprises a vibration sensor 9 disposed in contact with or close to the pile 4 or the guide leader 1. Furthermore, the cumulative value ΣΔL of the feeding amount of the wire 8 and the cumulative value of the detected number of hits are each recorded as counted values in the first. It has a second counter 10.11. And these first. Each count 11n1 of the second counter 10.11. It is configured such that n2 is input to the calculation processing unit 111fi12 each time the hammer 2 is struck, and is processed and recorded. Here, as the detection means 6, a mechanical-electrical transducer such as a piezoelectric element r or an acoustic-electrical transducer is used, and its output is transmitted through a frequency filter, a level discriminator 1 timer circuit, etc. (not shown). After light and unnecessary information is removed, it is sent as a count signal to the second force/Sontar 11. Further, after the recording and driving detection means, the rotation of the drum 7 is detected by a 1-1-tally type digital encoder, and this detected amount is set as the count value of the first counter 10. At this time, the relationship between the rotation amount of the drum and the payout amount of the wire X/-8 changes depending on the amount of wire 8 remaining to be wound on the drum 7, but the change is slight. , and since the change is reproducible for each pile stone, it can be easily corrected later. Therefore, by detecting the rotation (■) of the drum 7 with a digital encoder or the like, it is possible to detect the amount of wire 8 being fed out with a fairly high degree of accuracy, and furthermore, based on the detected amount of wire 8, the amount of driving of the pile 4 The cumulative value of can be measured and recorded every time the concession form 4 is hit. What should be further noted here is that since the amount of wire 8 fed out is measured as a cumulative value between the blows of the hammer 2, it is possible to eliminate the need to constantly monitor the movement of the wire 8 and the blows of the hammer 2. This means that even if the wire 8 is suddenly loosened due to these factors, accurate information regarding the feeding of the wire 8 can be reliably obtained without being affected by these effects. The arithmetic processing unit 12 is a CPU <central processing unit) 1
2a, a CRT display 12b, a cassette tape recorder 12c, and the like. And the above 1.
Second counter10. The number of blows for a large number of piles 4 is calculated based on the count values nl and n2 of It, and the number of blows required for a certain penetration of the pile 4 is distributed in stages for each of the six piles' penetration depth. and recorded on a magnetic hoop by the cassette tape recorder 12'c. The information recorded on this tape is then taken home and processed by another processing device, and a fin printer is used to create a graph showing the same number of strikes against the jar at each penetration depth.
Alternatively, the graph can be displayed on a CRT display to reliably provide information regarding the driving state of resistor 4. If necessary, a CRT will be installed at the site.
A graph table can be created on the display 12b or a table can be created using a printer. Also,
The drive amount detection means 5 for the pile 4 detects the amount of the wire 8 fed out from the drum l and connected to the hammer 2 using, for example, a []-tally encoder or the like. This is a simple setup that automatically records the driving of the pile 4 in a very short time without the hassle of installing a large number of contact points. will be carried out. Therefore, even at a site where a large number of piles 4 are driven, it is possible to automatically record the driving status of each pile 4, and the recording results can be used as described above. It is extremely reliable because it is not affected by the impact of time. As described above, the automatic pile driving recording device according to the present invention is very easy to set up for automatic recording, and as a result, even in a field where a large number of piles are driven, The driving status can be automatically recorded. Moreover, the recorded results can be made extremely reliable. 4. Brief description of the drawings Figure 1 is a cross-sectional view showing how the device according to the present invention is used;
FIG. 2 is a block diagram showing its electrical configuration, and FIG. 3 is a diagram showing an example of a conventional device. 1... Guide leader 2... Hammer 3... Ground 4... Pile 5...- . . . Drop amount detection means 6 . . .
. . . Hit count detection means 7 . . . Drum 8 . . . Wire 9 . . . Hinsa ~ 10, 11 . . . 1st. Second counter 12...
...Arithmetic processing means

Claims (1)

[Claims] A device that automatically records the driving state of a pile that is driven into the ground by being guided by a guide leader installed on the ground and struck by a hammer that performs an attack action while being guided by the kite leader. , the above-mentioned drive-in lid is attached to the above-mentioned
It has a tl-included violet detection + stage for measuring each number of hits of the 71-mer, and means for detecting the number of hits of the 71-mer, and the hitting amount detection means is pulled out from the tram and connected to the non-mer. The wire is fed out by 641 I between the blows of the non-mer, and the blow count detecting biomembrane is composed of a vibration sensor arranged in the above shape or in contact with or in the vicinity of the guide leader. , furthermore, the cumulative value of the amount of wire feeding out and the cumulative value of the number of blows of the above 6 wires are respectively counted as 6+; m-r
1 and 2 counters, and each count value of the gl and M2 counters is inputted to the arithmetic processing unit each time the above-mentioned hammer is hit for arithmetic processing and recording. An automatic pile driving recording device that saves time.