JP4098041B2 - Structure relative position detector - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure relative position detection apparatus suitable for detecting a change in a structure accompanying ground subsidence.
[0002]
[Prior art]
Structures constructed on poor land such as landfills may incline due to ground subsidence due to ground fluctuations such as earthquakes, and sewer piping connecting the structures may incline. If the structure fluctuates due to ground subsidence, the structure will crack or crack. Here, the structure includes a high-rise building, a bridge, a pier, and a pipe.
[0003]
Subsidence of underground pipes that have an optical fiber cable inside, a sleeve into which the plug is inserted, and a pressing mechanism that crimps the plugs to detect uneven subsidence of underground pipes by optical means Detection devices are known (see, for example, Patent Document 1).
[0004]
[Patent Document 1]
JP-A-1-284702 (see page 3, FIG. 1)
[0005]
[Problems to be solved by the invention]
If the structure fluctuates due to ground subsidence, cracks or cracks occur in the structure, so it can be seen from the cracks or cracks in the structure that the structure tilted or subsided due to ground subsidence.
[0006]
However, even if the user can recognize that the structure has been tilted or subsided due to changes due to ground subsidence due to the occurrence of cracks or cracks in the structure, the structure where cracks or cracks occurred Cracks must be repaired, and the user needs a great deal of money to repair them.
[0007]
In addition, in sewer piping that connects structures, the sewage flowing through the piping line flows due to the action of gravity, so there is no problem if the piping is inclined in the direction of sewage flow, but the piping When it inclines in the direction opposite to the direction, the sewage flowing through the pipe is stagnated, and the sewage does not flow efficiently along the pipe.
[0008]
The present invention has been made in consideration of the above points, and by detecting changes in the structure accompanying ground subsidence at all times, an accident caused by an abnormal movement of the structure and the sewage pipe connecting the structures to each other can be prevented. An object of the present invention is to provide a relative position detection device for a structure that can be prevented.
[0009]
[Means for Solving the Problems]
The structure relative position detection apparatus of the present invention includes a first straight pipe cylinder arranged in one structure, a second straight pipe cylinder arranged in the other structure, and an installation position of the straight pipe cylinder. A measuring device having a pair of detection units installed at a high position, a connecting pipe connecting the first straight pipe cylinder and the second straight pipe cylinder, and connecting one detection unit of the measuring apparatus and the first straight pipe cylinder A connecting pipe, a connecting pipe that connects the other detection unit of the measuring device and the second straight pipe cylinder, and a fluid medium that is formed of two kinds of liquids having different specific gravity and that are contained in the pipe. By having it constantly detect changes in the structure due to ground subsidence without installing electrical equipment or a separate detection device, accidents arising from abnormal movement of the sewage piping connecting the structures and structures to each other It can be prevented in advance.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a diagram illustrating a state in which a structure relative position detection device according to the present invention is installed in two high-rise buildings.
[0011]
As shown in FIG. 1, the structure relative position detection apparatus 1 according to the present invention is attached to a predetermined height position of one high-rise building 3 of two high-rise buildings constructed on a land 2 with poor ground. The first straight pipe cylinder 4 and the second straight pipe cylinder 4 arranged at the same height as the first straight pipe cylinder 4 of the other high-rise building 5 constructed at a predetermined distance from the one high-rise building 3. A straight pipe cylinder 6 and a measuring device 7 installed on one high-rise building 3 or at a position higher than the installation position of the straight pipe cylinders 4 and 6 away from the high-rise building 3 and visible to the operator. Have.
[0012]
The measuring device 7 has a pair of detection units 8a and 8b arranged in parallel. Each of the detection units 8a and 8b is a transparent cylinder formed of glass or a resin material, and has a scale in the longitudinal direction on the outer surface thereof. Each detection part 8a, 8b is connected to air | atmosphere by providing an opening part in an upper end. Further, the upper ends of the detectors 8a and 8b of the measuring device 7 may be connected to the atmosphere by connecting them with a perforated vibrator.
Furthermore, an opening / closing valve is arranged at the upper end opening of each detection unit 8a, 8b of the measuring device 7, the opening / closing valve is closed, a pressure sensor is arranged in the sealed space of each detection unit 8a, 8b, and relative to a high-rise building. Position fluctuations can also be detected by the pressure difference in the sealed space of the detectors 8a and 8b.
[0013]
The first straight pipe cylinder 4 and the second straight pipe cylinder 6 are connected at their lower ends by a flexible connecting pipe 9 such as a vinyl hose. Moreover, the upper end part of the 1st straight pipe | tube cylinder 4 and the lower end part of the detection part 8a of the measuring device 7 are connected by the flexible connection pipe | tube 10 like a vinyl hose. Furthermore, the upper end part of the second straight pipe cylinder 6 and the lower end part of the detection part 8b of the measuring device 7 are connected by a flexible connecting pipe 11 such as a vinyl hose. Therefore, the detection unit 8a and the detection unit 8b of the measuring device 7 are connected by a conduit formed by the flexible connection pipes 9 and 10.11 via the first straight pipe cylinder 4 and the second straight pipe cylinder 6. ing.
[0014]
The fluid medium 12 is accommodated in a pipe line connecting the detection unit 8a and the detection unit 8b. The fluid medium 12 is formed of two types of liquids that have different specific gravity but do not melt together. The two types of liquids are, for example, water 13 having a higher specific gravity and oil 14 having a specific gravity lighter than water and not soluble in water. The fluid medium 12 is separated into light oil 14 having a low specific gravity and water 13 having a high specific gravity when placed in the fluid conduit.
[0015]
Next, the operation of the relative position detecting apparatus 1 according to the present invention will be described.
As shown in FIG. 1, the first straight pipe cylinder 4 is attached to a predetermined height position of one high-rise building 3, and the second straight pipe cylinder 6 is attached to the first straight pipe cylinder 4 of the other high-rise building 5. At the same height level as the position. Next, the measuring device 7 is installed at an appropriate position of one high-rise building 3 or at a position away from the high-rise building 3 at a position higher than the attachment position of the tube cylinders 4 and 6 and visible to the operator.
[0016]
Next, the lower ends of the first straight pipe cylinder 4 and the second straight pipe cylinder 6 are connected to each other by a flexible connecting pipe 9, and the upper end of the first straight pipe cylinder 4 and the lower end of the detection unit 8a of the measuring device 7 are connected. The upper end portion of the second straight pipe cylinder 6 and the lower end portion of the detection portion 8 b of the measuring device 7 are connected by the flexible connection tube 11.
[0017]
Next, a fluid medium 12 formed of two types of liquids 13 and 14 in which the different specific gravity does not melt is injected into a pipe line connecting the detection unit 8a and the detection unit 8b. The amount of the fluid medium 12 injected into the pipe is adjusted so that the oil level of the light oil 13 of the specific gravity of the pair of detection units 8a and 8b of the measuring device 7 is in a range that can be read on the scale. Thereby, the attachment to the high-rise building of the relative position detection apparatus 1 of a structure is complete | finished.
[0018]
When land subsidence due to ground deformation such as an earthquake does not occur in the land 2 where the high-rise building 3 and the high-rise building 5 are constructed, as shown in FIG. 1, the first straight pipe cylinder 4 of the high-rise building 3 The water surface of heavy water 13 in the inside and the water surface of heavy water 13 in the second straight pipe cylinder 6 of the high-rise building 5 are at the same level surface, and in this connection, the measuring devices 7 are arranged in parallel. The oil level of the oil 14 having a light specific gravity in the pair of detection units 8a and 8b is also at the same level. The ground of an earthquake or the like on the land of the high-rise building 3 and the high-rise building 5 when the observer visually observes that the oil level of the oil 14 in the pair of detection units 8a, 8b of the measuring device 7 is at the same level surface. It is confirmed that there is no land subsidence due to fluctuation.
[0019]
If land subsidence occurs due to ground deformation such as an earthquake in the land, and subsidence of subsidence amount H occurs in land 2 where the high-rise building 5 was constructed, as shown in FIG. With respect to the high-rise building 3, the high-rise building 5 of the land 2a where the ground subsidence occurs sinks by the subsidence amount H.
[0020]
When the high-rise building 5 sinks by the subsidence amount H, a part of the water 13 in the first straight pipe cylinder 4 flows into the second straight pipe cylinder 6 through the flexible connecting pipe 9, and the high-rise building 3 A water surface difference e is formed between the water surface of the water 13 in the first straight pipe cylinder 4 and the water surface of the water 13 in the second straight pipe cylinder 6 of the high-rise building 5.
[0021]
When a part of the water 13 in the first straight pipe cylinder 4 flows into the second straight pipe cylinder 6, one of the measuring devices 7 corresponds to the amount of the water 13 that has flowed out in the first straight pipe cylinder 4. The oil level of the oil 14 in the detector 8a is lowered. At the same time, the water level of the water 13 in the second straight pipe cylinder 6 into which the water 13 in the first straight pipe cylinder 4 has flowed rises, corresponding to the amount of water 13 that has flowed in from the first straight pipe cylinder 4. The oil level of the oil 14 in the other detection unit 8b of the measuring device 7 rises. As a result, an oil level difference E occurs between the oil level in the detection unit 8a and the oil level in the detection unit 8b of the measuring device 7. The subsidence of the high-rise building can be detected from the oil level difference E between the detection unit 8a and the detection unit 8b of the measuring device 7.
[0022]
In the embodiment of the invention, the detection unit 8a, the detection unit 8b, the first straight pipe cylinder 4 and the second straight pipe cylinder 6 are separate members from the connection pipe. However, the detection unit 8a, the detection unit 8b, The first straight pipe cylinder 4 and the second straight pipe cylinder 6 may be formed integrally with the connecting pipe.
[0023]
In the embodiment of the present invention, the object is described as a high-rise building. However, the object may be a bridge, a pier, or the like as long as it is a structure that moves relative to each other in the vertical direction between two points. In some cases, other structures may be used.
[0024]
In the embodiment of the invention, the detection unit 8a, the detection unit 8b, the first straight pipe cylinder 4 and the second straight pipe cylinder 6 are separate members from the connection pipe. However, the detection unit 8a, the detection unit 8b, The first straight pipe cylinder 4 and the second straight pipe cylinder 6 may be formed integrally with the connecting pipe.
[0025]
Furthermore, the structure relative position detection device according to the present invention can be used as a means for adjusting two machines to the same horizontal level by being attached to two machines installed at a distance from each other. If one of the machines sinks, it can also be used as a means to return the sinking machine to the same horizontal level as the non-sinking machine.
[0026]
【The invention's effect】
As described above, according to the present invention, it is possible to prevent an accident caused by an abnormal movement of the sewage pipe connecting the structure and the structures by always detecting the change of the structure.
[Brief description of the drawings]
FIG. 1 is a diagram showing a state in which a structure relative position detection device according to the present invention is installed in two structures.
FIG. 2 is a diagram showing an operation of a relative position detection apparatus for a structure according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Relative position detection apparatus 3 Structure 4 1st straight pipe cylinder 5 Structure 6 2nd straight pipe cylinder 7 Measuring device 8a, 8b Detection part 9,10,11 Flexible connection pipe 12 Flow medium 13 Liquid 14 with heavy specific gravity Light liquid with specific gravity

Claims (3)

A first straight pipe cylinder arranged in one structure; a second straight pipe cylinder arranged in the other structure; and a pair of detectors installed at a position higher than the mounting position of the straight pipe cylinder. A measuring apparatus, a connecting pipe connecting the first straight pipe cylinder and the second straight pipe cylinder, one detecting section of the measuring apparatus and a connecting pipe connecting the first straight pipe cylinder, and the other detecting section of the measuring apparatus; Relative position detection of a structure comprising: a connecting pipe for connecting a second straight pipe cylinder; and a fluid medium formed of two kinds of liquids having different specific gravity but not mixed with each other. apparatus. 2. The relative position detecting device for a structure according to claim 1, wherein the detecting part and the straight pipe cylinder are integrally formed in the connecting pipe. 2. The relative position detection device for a structure according to claim 1, wherein the pair of detection units of the measurement device are arranged in parallel and communicate with the atmosphere.

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