JPS5850423A - Device for measuring vertical displacement - Google Patents

Abstract

PURPOSE:To perform measurement accurately, quickly, economically, and continuously, by providing fluid leveling pipes which are communicated by a lower communicating pipe at measuring locations at least two points, detecting the water levels, and outputting and displaying the corresponding signal. CONSTITUTION:The lower parts of the two leveling pipes 1 are communicated by the lower communicating pipe 2, and a specified amount of water 8 is filled in the inside. Water level detecting devices 3 are arranged in the leveling pipes 1. The water level detecting device comprises a water level detector 3a and a converter 3b. The water level detector 3a is dipped in the water 8 and detects the water level. The converter 3b converts the water level detected by the water level detector 3a into a specified electric signal. Then said signal is outputted to a display device.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vertical displacement measuring device, and more particularly, to a device for measuring vertical displacement, and in particular, a method for communicating the lower part of each water-filling pipe installed at at least two measurement positions of an object to be measured through a lower communication pipe. Then, for each water pipe,
All water level sensing devices are arranged to sense the water level and output a signal corresponding to the water level, and a display device that displays a display corresponding to the signal based on the signal output by each water level sensing device of each water pipe. is installed to accurately and quickly measure the amount of vertical displacement of an object to be measured at a remote location, and continuously over time based on the water level of the valley water pipe.

As a means of measuring the total vertical displacement of the object to be measured,
A means is used in which the lower portions of two water-filling tubes attached to the object to be measured are communicated through a communicating tube to detect the entire water level of each water-filling tube. However, although this method has a simple structure and has been used since ancient times due to its high accuracy, it has not been improved and as a result, it is impossible to measure at a location far from the object to be measured. Furthermore, even when the valley water-filling pipes are located at mutually isolated positions, there is a problem in that it is impossible to detect the water level difference between both water-filling pipes at the same time.

Therefore, the present invention uses a conventional means for communicating the lower portions of two water-filling pipes through a communication pipe to detect the entire water level of each water-filling pipe, and by completely improving the above-mentioned problems of the conventional water-filling pipes. This was done to solve the problem. Therefore, it is an object of the present invention to connect at least two pipes whose lower portions are connected to each other by a lower communication pipe.
It is difficult to read the water level of one water-filling pipe from all remote positions, and an object of the present invention is to constantly measure the amount of vertical displacement of the object to be measured, even when the object is moving in the vertical direction. , this application, as in the illustrated embodiment, has a measurement object S.
The lower part of each water filling pipe 1 installed at at least two measurement positions is communicated with the lower communication pipe 2, and the water level is sensed and corresponds to the water level in each water filling pipe 1. A water level sensing device 6 that outputs a signal to
A vertical displacement measuring device characterized in that it is provided with a display device 4 that displays a display corresponding to the signal based on the signal output from each of the water level sensing devices 6 of The lower portions of the perfume filling tubes 1 installed at at least two measurement positions are communicated with the lower communicating tube 2, and the upper portion of each water filling tube 1 is communicated with the upper communicating tube 5, A water level sensing device 3 that senses the entire water level and outputs a signal corresponding to the water level is arranged in each water filling pipe 1, and further, based on the signal output by each water level sensing device 6 of the valley water filling pipe 1, The first combined invention is a vertical displacement measurement device characterized by being provided with a display device 4 that displays a display corresponding to the signal, and each device is installed at at least two measurement positions of the measurement object S. The lower part of the water supply pipe 1 is connected to the lower communication pipe 2.
Separately from the object to be measured, a reference water pipe 6 is installed, and the lower communication pipe 2 and the lower part of the reference water pipe 1 are communicated with each other through the reference communication pipe 7. Pipe 1 and standard water mound v6
A water level sensing device 3 that senses the water level and outputs all the signals corresponding to the water level is arranged, and a display device that displays a display corresponding to the signal based on the signal output by each water level sensing device 3. 4 is provided as a second combined invention.

The present invention will be explained below based on the accompanying drawings.

FIG. 1 is an explanatory diagram showing the entire principle of the present invention). The lower portions of two water-filling tubes 1 are communicated with a lower communicating tube 2, and a predetermined amount of water 8 is interposed inside. A water level sensing device 6 is provided in the water filling pipe 1. The water level sensing device 3 consists of a water level sensor 6a and a converter 6b.The water level sensor 6a faces into the water 8 and senses the water level, and the converter 6b detects the water level sensed by the water level sensor 6a. It is configured to convert into a predetermined electrical signal.

In FIG. 2, a water level sensing device 6, particularly a water level sensor 6a, is illustrated.
A large number of water level sensing elements 10 are provided on the outer surface of the transducer 6b so as to be able to be carried at regular intervals in the vertical direction, and each element 10 is electrically connected to the transducer 6b. An air hole 11 is opened in the upper part of the water filling pipe 1, and atmospheric pressure is constantly applied to the water 8, thereby facilitating changes in the water level. The water level sensor 6a in Figure B is an example in which 10 groups of water level sensing elements are spirally arranged in the vertical direction on the surface of a bar 9, and the water level sensor 3a in Figure 0 is an example of the same water level sensor as in Figure A. The sensing elements 10 are arranged such that the distance between the upper and lower ends is narrow near the reference water level at the center in the vertical direction, and the distance between the upper and lower ends becomes wider as they move away from each other in the vertical direction. The water level sensor 6a shown in Fig. D is constructed by suspending a large number of electrodes 12 and varying the length of each electrode in the vertical direction.

Although not shown, the water level sensor 6a uses a float floated on water 8 and the position of this float electrically detected.
Optical sensing means can also be used. for example,
This is a means for detecting all height positions of the float by fixing a permanent magnet to the float and arranging a large number of proximity switches vertically.

FIG. 3 shows four water filling tubes 1 as described above placed at four measurement positions A, B, 0, . In this example, the lower communication pipe 2 is placed at position A.

The water filling pipes 1 at positions C and the water filling pipes 1 at positions B and D are communicated with each other, and both communication pipes 2 are arranged to intersect.

FIG. 4 shows a display device 4 electrically connected to the water level sensing device 3 of the valley sump pipe 1 of FIG. Here, there are four columns extending in the vertical direction, and each column has the same number of light bulbs 16 lined up as light emitters to represent the same water level in the horizontal direction, and each water level has a reference water level. O, and a number (unit: cabinet) indicating the total amount of displacement in both the vertical and vertical directions is attached.

Displays A to D in each column represent measurement positions A to D by the water filling tube 1.

Thus, the water 8 in the water filling tube 1 and the water level sensing element 10,
An electric circuit is formed that connects the light bulb 16 of the display device 4 and the power source.

Now, according to the example of FIG. 3, if the vertical displacement of the measurement object S is to be measured, the water level at each position A to D is sensed by the water level sensing device 3 of the water filling pipe 1 at each position A to D. Then, this is converted into an electric signal, and this signal is output to the display device 4.

In each column, the display device 4 displays each water level by lighting up the light bulb 16 at the position corresponding to the input signal. Fourth
In the display device 4 shown in the figure, position A is 9fIll as well as the reference point.
++ higher, and position C is also 9m lower. Also, position B is 3
This indicates that the tran is high and the position is 3 orders of magnitude lower.

Therefore, when these displacement amounts are measured based on the lighting position of the light bulb 16, in order to eliminate such displacement, the vertical displacement amount at each position A-D of the measurement object S is calculated when the water level is O.
Control with jacks, cranes, etc. so that The display device 4 always displays the water level of the water filling pipe 1, so is this? The above control may be performed while checking.

FIG. 5 shows a measurement target S on which the water-filling tube 1 is installed by installing a reference water-filling tube 6 having all the same functions as the water-filling tube 1 together with the water-filling tube 1. This is to measure the amount of vertical movement. That is, the water filling pipes 1 are installed at predetermined positions on the measurement target S as described above, and are communicated with each other through the lower communication pipe 2. It is installed in a separate entity with no relation to S. Then, the lower part of the standard water filling pipe 6 and the lower communication pipe 2.

It communicates with the standard communication pipe 7. And each water pipe 1,
6 contains water 8, and therefore, the water level of each water filling pipe 1, 6 is displayed by the respective water level sensing device 6 on the display device 4. Although not shown, the display device 4 in this case has a row of light bulbs for the reference water-filling tube 6, and the water level of the reference water-filling tube 6 as well as the water level with the two water-filling tubes 1 is displayed. Can be measured at the same time. First, each water tube 1. Measure all the water levels in B. Therefore, if the measurement target S is, for example,
As it descends, the water level in the water filling pipe 1 rises, and the water level in the reference water filling pipe 6 falls. If the amount of water level rise in both sump pipes 1 is the same, it means that each part of the measurement object S is lowering by the same distance on average, and if the measurement object S is tilted, the rain sump pipe The amount of water level rise in 1 is different. The amount of descent of the object S to be measured can be measured by measuring the entire amount of descent of the water level of the reference water filling pipe 6. Then, when the amount of descent of the object S to be measured becomes large enough that it cannot be measured with the reference water tube 6, the reference water tube 6 is completely lowered. The standard water pipe 6 is a wire 15 hung on a sheave 14.
The wire 15 is hung from one end, and the other end of the wire 15 is wound around a drum 16. Then, the amount of wire 15 fed out is counted by the counter 17, and the height position of the reference water filling tube 6 is measured. Therefore, the amount of descent of the object to be measured S is measured based on the height position of the reference water filling pipe 6 obtained by counting by the counter 17 and the water level of the water filling pipe B. In addition, when the object S to be measured rises, the amount of rise and the amount of vertical displacement can be measured in the same manner by raising each of the water filling tubes 1 and 6.

FIG. 6 shows a bar 9 on which a large number of water level sensing ropes 10 are arranged.
This is an example in which the water level sensor 56 is installed so as to be movable up and down with respect to the water filling pipe 1. When the water filling tube 1 is installed on the measuring object S, the water level of the water filling tube 1 must be set to O, and the entire measurement must be started with the display device 4 set to the lighting position O. At this time, the zero point correction by the water filling tube 1 can be easily performed by raising and lowering the water level sensor 3affi. A screw rod 9a is attached to the rod 9, passed through the entire transducer 6b, and screwed into the upper end of the screw rod 9a, thereby making the water level sensor 6d movable up and down. Of course, other means can be used as the elevating means.

FIG. 7 shows an example in which two water filling pipes 1 are connected to each other through an upper communication pipe 5 at the upper part. As a result, even if both water-filling tubes 1 are arranged in positions where they are mutually isolated from the atmosphere, the internal pressures of both water-filling tubes 1 are maintained at the same level, so that suitable measurement sounds can be obtained.

All of the pores 11 in FIG. Even if the object S is tilted more than a predetermined level, the water 8 will not leak.

FIG. 8 shows an example in which the present invention is applied to a press-in method using a caisson as the object S to be measured.

That is, on the upper surface of the caisson
8 is placed, and the strand 19, which is attached to a car (not shown), is passed through the pressurizing girder 18 at positions A-D, and is engaged with the jack 20 on the pressurizing girder 18. Jyatsuki 2
0 is driven by the hydraulic pressure of the pump 21 and the strand 1
9 is pulled down, and the reaction force is used to push down the pressurizing girder 18, thereby press-fitting the cane/S into the ground. At each end of the pressurizing girder 18, a water filling pipe 1 is arranged at a position A-D, and its water level sensing device 3
In addition, all display devices 4 similar to those shown in FIG. 4 are connected.
A subsidence measuring device 19a'i is installed at position A-D corresponding to each water filling pipe 1, and this is connected to the subsidence meter 19, and the light bulbs 20 arranged in a row in the same manner as the display device 4 are displayed. , the amount of subsidence at each position A''-D of the caisson S is detected.Then, the display device 4
The degree of inclination is fully measured from the vertical displacement between positions A and D of the stop surface of the caisson S, and the degree of press-in of the caisson S is measured using the sinkage gauge 19. Based on these measurement results, the pump 21 is operating the connected control device 22;
Bonn: Controls the jack 2o through the operation of f21.

In FIG. 8B, 15 is a wire and 16 is a drum, which are the same as those in FIG. 5. However, the counter 17 is not shown here.

FIG. 9 shows the present invention in which the ground is used as the object S to be measured, and the amount of subsidence thereof is measured. In other words, the ground S is the underground wall 2
Although it is earth-retained, it may sink due to natural phenomena such as earthquakes or rainfall, so two pillars 24 are fully erected at the measurement target location, and each pillar 24 is covered with water. Fix the filling tube 1. The pillar 25 is installed in a position where there is no risk of it sinking, and the standard water pipe 6' (i-installed) is installed on this pillar.
The two water-filling tubes 1 and the reference water-filling tube 6 have the configuration and function as shown in FIG.
is connected to automatically record the amount of subsidence of the ground S.

FIG. 10 shows the present invention in which a lifted object is used as the object S to be measured, and the amount of vertical displacement of both ends of the object S during lifting is measured. That is, 27 is a pillar, on the upper end of which a lifting device 28 and its driving device 29 are fixed, and on a rod 30 hanging from the lifting device 28, both ends of the lifted object S are fixed. Each is fixed. A water filling pipe 1 is attached to each end of the lifted object S, and the water filling pipe 1 and the display device 4 are connected as shown in FIG. An alarm device 61 is connected to the display device 4,
An alarm 31 is activated when the vertical displacement of the lifted object S measured by the two water-filling pipes 1 reaches a dangerous displacement. Reference numeral 62 denotes a control device, which operates one or both of the drive devices 29 and controls the lifting object S while checking the vertical displacement amount and lifting amount of the lifting object S on the display device 4. Do the lifting.

As is clear from the above, according to the present invention, all water level sensing devices are arranged in at least two water filling pipes, and a display device is provided that displays a signal corresponding to the signal output from the water level sensing device. The water level in the pipe can be measured remotely. Therefore, even in construction work that uses large objects to be measured, such as caisson construction and bridge girder installation work, it is necessary to station personnel to monitor water levels at each measurement position and to communicate with each other by radio. Even without using this method, it is possible to easily measure the amount of vertical displacement between two or more force points on the object to be measured. Further, according to the present invention, even if the object to be measured is moving in the vertical direction or other directions,
Since it is possible to measure the entire amount of vertical displacement between positions above the force point, for example, the entire object to be measured can be lowered while maintaining its horizontal state, and the measurement can be continued during the movement. It can be done.

Furthermore, if the upper parts of the valley water-filling pipes are communicated with each other by an upper communication pipe, the internal pressure of each water-filling pipe can be made equal at all times, making it suitable for measurements at locations with different atmospheric pressures. Evaporation and leakage can be totally prevented. In addition, by communicating the lower part of each water-filling pipe with the lower part of a separately provided standard water-filling pipe, it is possible to add Since it is possible to measure the amount of vertical movement of the entire object, it is suitable for construction work in which the entire object to be measured is moved up and down while controlling its posture.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing the principle of this invention, and FIG. 2 is an explanatory diagram showing a water filling pipe and a water level sensing device of this invention.
A indicates the first example, B the second example, 0 the third example, and D the fourth example. The third figure is a schematic plan view showing the relationship between the object to be measured, the water filling pipe, and the lower communication pipe.
The figure is a front view showing an example of a display device, FIG. 5 is an explanatory diagram of an example in which a water-filling tube and a standard water-filling tube are used together, and FIG. 6 is a view showing that the water level sensing element of the water level sensing device can be raised and lowered. Fig. 7 is an explanatory drawing showing an example in which the upper parts of the water-filling pipes are connected to each other by an upper communication pipe, and Fig. 8 is an example in which a caisson is used as the object to be measured. B shows the front view, 0 shows the display device, D shows the subsidence gauge, and E shows the control device. Figure 9 is a front view showing an example where the ground is used as the measurement object, and Figure 10 is
FIG. 3 is a front view showing an example in which a weighted object is used as a measurement target. In the figure, 8 is the object to be measured, A, B, O, D are the measurement positions, 1 is the water filling pipe, 2 is the lower communication pipe, 3 is the water level sensing device, 4 is the display device, 5 is the upper communication pipe, 6 is the The reference water pipe 7 is a reference communication pipe. Patent applicant: Taisei Corporation Representative Patent Attorney: Tetsuya Seri□ Patent Attorney: Yoshiaki Naito, Patent Attorney
Tadashi Shimizu (A) Figure 2 (C') (D') Figure 8 (B) Figure 9 Figure 10

Claims (1)

[Claims] (υ The lower part of each water-filling pipe installed at at least two measurement positions of the object to be measured is connected through a lower communication pipe,
In addition, a water level sensing device that senses the water level and outputs a signal corresponding to the water level is arranged in each water filling pipe, and further, based on the signal output by the water level sensing device of each water filling pipe, A vertical displacement measuring device characterized in that it is equipped with a display device that displays a display corresponding to a signal. (2) Using an electrode as the water level sensing element of the water level sensing device,
2. The vertical displacement measuring device according to claim 1, wherein an electric circuit is formed to connect the water in the water filling tube, the electrode, the display device, and the power source. (3) The display device has a digital display means in which the number of rows of luminous bodies is the same as the number of water-filling tubes, and the number of luminous bodies in one row is the same as the number of electrodes of the water level sensing device. A vertical displacement measuring device according to claim 2. (4) Any one of claims 1 to 3, in which at least two sets of two water-filling pipes connected by a lower communication pipe are arranged at positions where the lower communication pipes are shifted. Vertical displacement amount measuring device (5) Vertical displacement amount measuring device according to any one of claims 1 to 4, wherein the water level sensing element of the water level sensing device is installed so as to be movable up and down in the water container pipe. (6) The lower part of each water-filling pipe installed at at least two measurement positions of the object to be measured is connected through a lower communication pipe,
In addition, the upper part of each water-filling pipe is connected through an upper communication pipe, and each water-filling pipe is equipped with a water level sensing device that senses the entire water level and outputs a signal corresponding to the water level. A vertical displacement measuring device characterized by a display device having a gold film, which displays a display corresponding to the signal based on the signal output from each of the water level sensing devices. (7) Connect the lower part of each water-filling pipe installed at at least two measurement positions of the object to be measured through a lower communication pipe, and install a standard water-filling pipe separately from the object to be measured. , the lower communication pipe and the lower part of the reference water-filling pipe are connected through the reference communication pipe, and each water-filling pipe and the reference water-filling pipe sense the water level and transmit all the signals corresponding to the water level. A vertical displacement measuring device characterized by having all of the output water level sensing devices arranged therein, and further comprising a display device that displays a display corresponding to the signal based on the signal output from each water level sensing device.