JP2013155488A - Ground displacement simple measuring apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ground displacement simple measuring apparatus capable of measuring fine horizontal displacement of the ground with a simple structure and further measuring fine vertical displacement as well.SOLUTION: A ground displacement simple measuring apparatus 1 comprises an origin-side solid body 2 and a displacement-side solid body 3 disposed across a crack R in a slope place G, a horizontal displacement amount measurement member 4 measuring an amount of displacement in which the displacement-side solid body 3 is displaced horizontally to or away from the origin-side solid body 2, a placing mechanism 5 having a plurality of rotary bodies 51 mounted with a plate member 41 of the horizontal displacement amount measurement member 4, and a vertical displacement amount measurement member 6 measuring an amount of displacement in a perpendicular direction of the displacement-side solid body 3.

Description

  The present invention relates to an apparatus capable of easily and reliably measuring a minute displacement of the ground, in particular, a minute displacement in a horizontal direction and a vertical direction due to progress of a crack generated on an inclined ground with a simple structure.

  Steel towers for installing power transmission lines, etc. may be installed on this site in the mountains in the inclined land, and if the entire site where the steel tower is installed is moved by landslide, the steel tower collapses. There is a fear. And in the initial stage of landslides, landslides may occur, and since the progress of landslides can be understood by increasing the short dimension of the opening of the landslide and increasing the subsidence of the peripheral part of the opening, It is desirable to measure the lateral dimension of the opening of the crustal crack and the degree of sedimentation of the peripheral edge of the opening of the crawl several times and compare the plurality of measured values to investigate the progress of the landslide.

  As an apparatus for measuring the displacement of the ground, for example, a ground-installation-type ground displacement measuring apparatus described in Patent Document 1 is already known. The ground surface installation type ground displacement measuring device described in Patent Document 1 inserts a measurement line into a telescopic tube laid on the ground surface or in the vicinity of the ground, and connects one end of the measurement line to the ground surface. The displacement of the ground is to be measured by fixing the reference point, connecting the other end to a displacement meter, and measuring the change in the length of the measurement line with the displacement meter.

  Further, as a device for reducing the size and simplifying the device for measuring the displacement of the ground, for example, a landslide meter described in Patent Document 2 is already known. The landslide meter described in Patent Document 2 drives a fixed pile above an inclined surface, drives a movable pile below the inclined surface, and fixes a case in which a constant load spring is stored at the top of the fixed pile. One end of the Invar steel wire is fixed to the top of the pile, and the other end of the Invar steel wire is fixed to the leading end of the steel sheet with the constant load spring scales. The displacement of the ground is measured by the difference between the measured value of the pull-out length of the thin plate and the initial value before the measurement.

JP-A-11-72323 JP-A-8-21750

  However, since the ground-mounted ground displacement measuring device shown in Patent Document 1 uses a measuring device, a monitoring device, or the like to measure the change in the length of the measurement line, the scale of the entire device is relatively large. Since it becomes large, it has the inconvenience that it is not considered suitable for measuring the partial displacement of the site where the steel tower or the like is installed.

  In this respect, since the landslide meter shown in Patent Document 2 has a relatively simplified configuration, it can solve the problems of the ground surface-mounted ground displacement measuring device shown in Patent Document 1 above. This landslide meter has a new problem that the displacement of the ground in the vertical direction cannot be measured.

  Therefore, the present invention provides a ground displacement simple measuring device capable of measuring a minute displacement in the horizontal direction of the ground with a simple structure and further capable of measuring a minute displacement in the vertical direction of the ground. The purpose is to provide.

  A ground displacement simple measuring device according to the present invention includes a first standing body capable of burying a lower end in the ground, a second standing body capable of burying a lower end in the ground, The first vertical body includes a substrate provided so as to extend from the first vertical body toward the second vertical body, and a plurality of rotary bodies rotatably attached to the substrate. Placed in a laid-down state so as to extend over the first standing body and the second standing body, and the end on the second standing body side is the second standing body. A plate member fixed to the standing body, an end on the first standing body side being placed on the rotating body of the mounting mechanism, and a measurement display unit disposed on the upper surface; and the first member An indicator body is attached to a rod-like body extending along the plate member from the base provided at the upper end of the vertical member. It is characterized by having a first measuring member constituted by an indicator member, a (claim 1). The measurement display part of a plate member is a scale etc. which were engraved along the direction of the plate member lying down, for example.

According to the ground displacement simple measuring apparatus having such a configuration, the first standing body and the second standing body are arranged so as to sandwich the measurement target such as the opening of the ground crack, and then the first standing body. And the second vertical body are adjusted so that the indicator body of the indicator member of the first measurement member indicates the measurement target. Next, the lower end of the first upright body and the lower end of the second upright body are embedded in the ground so that the plate member is horizontal while maintaining the state where the index body indicates the measurement target. Further, it is recorded which position on the measurement display portion of the plate member the indicator body is pointing to. Thereby, the initial environment for measuring the displacement of the measurement target such as a change in the short-side dimension of the opening of the ground crack is prepared.
Then, for example, there is a change in the measurement target, such as an increase in the lateral dimension of the opening of the crack, and the region where the second standing body is embedded is away from the region where the first standing body is embedded. When the plate member is displaced, the end of the plate member moves toward the measurement target such as the opening of a crack due to the rolling of the rotating body of the mounting mechanism, while the plate member is moved to the first standing member. Since the body itself does not move, there is a shift in the position where the index body included in the index member of the first measurement display member points to the measurement display section of the plate member. However, the position where the index body newly points to the measurement display part of the plate member is measured and recorded, and by comparing this recorded position with the position previously measured and recorded by this index body, It is possible to measure the displacement of the measurement target such as a change in the size of the opening in the short direction.

  Moreover, the ground displacement simple measuring device according to the present invention is for connecting and communicating two tubular parts having a scale and being able to see the inside and lower ends of these tubular parts in the axial direction. The tubular connecting portion is made of a stretchable material, and further includes a second measuring member in which a liquid is stored in the tubular connecting portion and the tubular connecting portion, and one of the two tubular portions is An upper portion of the plate member is connected to an end portion on the first standing body side, and an upper portion of the other tubular portion is connected to an end portion of the plate member on the second standing body side. (Claim 2). The two tubular portions are formed of a transparent or translucent material such as glass or plastic. The connecting portion is formed of a flexible material such as rubber or other resin material. The liquid stored in the second measurement member is, for example, water.

  Thereby, for example, when the region in which the second standing body is embedded is relatively lowered, the tubular connecting portion constituting the second measuring member as a whole is the second tubular portion from the first tubular portion side. Accordingly, the liquid level in one tubular portion provided on the first standing body side of the two tubular portions constituting the second measuring member is lowered. Since the liquid level in the other tubular part provided on the second vertical body side becomes higher, the liquid level of the liquid in the tubular part is measured and recorded on the scale, and the previously measured and recorded value By confirming the height difference, it is possible to measure a minute displacement in the vertical direction of the ground due to the progress of ground cracking or the like.

  Furthermore, in the ground displacement simple measuring device according to the present invention, the first standing body and the second standing body are each a stretchable member that can expand and contract in the vertical direction, and a part or all of it embedded in the ground. And a connecting member that connects the telescopic member and the embedded member, respectively (claim 3).

  As a result, when the plate member is leveled in the step of installing the ground displacement simple measuring device, the plate member is not horizontal when the first standing body or the second standing body is embedded. However, there is no need to change the position where the first standing body or the second standing body is embedded, and the first standing body and the second standing body are expanded and contracted to expand and contract the first standing body. The plate member can be made horizontal by adjusting the overall dimensions of the body and the second upright body.

  Furthermore, in the ground displacement simple measuring device according to the present invention, all or a part of the expansion and contraction members of the first standing body and the second standing body are swung in the sideways direction of the plate member. (Claim 4).

  Accordingly, the ground is displaced in a direction in which the region where the first standing body is embedded and the region where the second standing body is embedded is relatively separated, or the first standing body and the second Since there was an error or the like in the work of embedding the standing member, even if the first standing member or the second standing member is inclined, all or a part of the telescopic member is swung in the longitudinal direction of the plate member. Thus, the plate member can be returned to the horizontal state.

  In the ground displacement simple measuring device according to the present invention, the index body of the index member of the first measurement member has a shaft portion provided on a side surface of the rod-shaped body and a through hole through which the shaft portion is inserted. An annular body and a weight portion projecting from the annular body to the outside in the radial direction of the through hole are configured to be swingable to the shaft portion by extrapolating the through hole of the annular body to the shaft portion. It is characterized by being mounted (Claim 5).

  Thereby, since the weight part which protruded from the annular body can always face the downward direction of the vertical direction, the index member of the index member can be the plate member even if the rod-shaped body is not in the horizontal direction. The position of the measurement target can be accurately pointed on the measurement display section.

  As described above, according to the first to fifth aspects of the present invention, after the first standing body and the second standing body are disposed so as to sandwich the measurement target such as the opening of the ground crack, The interval between the first standing body and the second standing body is adjusted so that the index body of the index member included in the first measurement member indicates the measurement target, and then this index body indicates the measurement target. The lower end of the first upright body and the lower end of the second upright body are embedded in the ground so that the plate member is horizontal while maintaining the state, and the indicator body further measures the plate member. By recording which position on the display unit is pointed to, it is possible to prepare an initial environment for measuring the displacement of the measurement target such as a change in the size of the opening of the crack in the short direction.

  And according to invention of Claim 1-5, after the initial environment for measuring the displacement of a measurement target, such as a change of the size of the short direction of the opening of the above-mentioned crack, is prepared, For example, there is a change in the measurement target such that the opening in the short direction of the opening of the crack is expanded, and the area where the second standing body is buried is displaced away from the area where the first standing body is buried. In this case, the plate member is moved toward the measurement target such as a crack opening by the rolling of the rotating body of the mounting mechanism, while the end of the first standing body is moved to the first standing body. Since the indicator itself does not move, the indicator body included in the indicator member of the first measurement display member has a displacement in the position pointing to the measurement display portion of the plate member. Therefore, the indicator body newly points to the measurement display portion of the plate member. Measure and record the position where It is possible to measure the displacement of the measurement target such as the change in the size of the opening of the crack in the short direction by comparing with the position measured and recorded with the target, so the ground structure can be measured with a simple structure. A small displacement in the horizontal direction can be measured.

  In particular, according to the second aspect of the present invention, for example, when the region where the second standing body is embedded is relatively lowered, the connecting portion constituting the second measuring member is the first as a whole. The second tubular portion side is relatively lower than the tubular portion side, and accordingly, one of the two tubular portions constituting the second measuring member is provided on the first standing body side. Since the liquid level of the liquid in the part is lowered and the liquid level of the liquid in the other tubular part provided on the second standing body side is increased, the liquid level of the liquid in the tubular part is measured and recorded on the scale, By confirming the difference in height from the previously measured and recorded value, it is possible to measure minute displacements in the vertical direction of the ground due to the progress of cracks, etc., so the vertical direction of the ground with a simple structure It is also possible to measure minute displacements at.

  In particular, according to the invention described in claim 3, when the plate member is leveled in the step of installing the ground displacement simple measuring device, when the first standing body or the second standing body is embedded, Even if the plate member is not horizontal, there is no need to change the position where the first standing body or the second standing body is embedded, and the first standing body and the second standing body can be expanded and contracted. The plate member can be made horizontal by expanding and contracting the member and adjusting the overall dimensions of the first and second standing bodies.

  In particular, according to the invention described in claim 4, the ground is displaced in a direction in which the region where the first standing body is embedded and the region where the second standing body is embedded are relatively separated from each other, or Since there was an error in the embedding operation of the first standing body and the second standing body, even if the first standing body or the second standing body is tilted, all or part of the elastic member is removed. The plate member can be returned to a horizontal state by swinging in the longitudinal direction of the plate member.

  In particular, according to the invention described in claim 5, since the indicator member can be such that the weight portion protruding from the annular body is always directed downward in the vertical direction, the indicator member of the indicator member has a bar-like body in the horizontal direction. Even if not, the position of the measurement target can be accurately pointed with respect to the measurement display section of the plate member.

FIG. 1 is an explanatory view showing the configuration of a ground displacement simple measuring apparatus according to the present invention, FIG. 1 (a) is a plan view of the ground displacement simple measuring apparatus according to the present invention, and FIG. FIG. 1C is a right side view of the ground displacement simple measuring apparatus according to the present invention, and FIG. 1D is a front view of the ground displacement simple measuring apparatus according to the present invention. is there. FIG. 2 is an explanatory diagram showing a state in which the index member of the first measuring member of the above-described ground displacement simple measuring device is provided on the rod-shaped body. FIG. 3 is an explanatory view showing the configuration of the upper end portion of the tubular portion of the second measuring member of the above-described ground displacement simple measuring device. FIG. 4 is an explanatory diagram showing a state in which the above-described ground displacement simple measuring device is installed in the form of standing bodies on both sides in the short direction of the opening of the ground crack. FIG. 5 shows that the ground crack progresses from the state shown in FIG. 4, thereby causing a shift in the position of the index member of the first measurement member, and the level of the liquid in the tubular portion of the second measurement member is increased or decreased. It is explanatory drawing which shows the state which the change produced.

  Embodiments of the present invention will be described below with reference to the drawings.

  1, FIG. 4 and FIG. 5 show an example of the entire configuration of the ground displacement simple measuring apparatus 1 according to the present invention. The ground displacement simple measuring device 1 includes a starting side standing body 2 capable of burying the lower end in the ground, a displacement side standing body 3 capable of burying the lower end in the ground, and a displacement side standing body. A horizontal displacement amount measuring member 4 for measuring a displacement amount in which the solid body 3 is displaced in a direction (horizontal direction) in a direction farther from the starting side vertical body 2 and a plate member 41 described later of the measuring member 4 are provided. A mounting mechanism 5 for mounting and a vertical displacement measuring member 6 for measuring the amount of displacement in which the vertical bodies 2 and 3, particularly the displacement side vertical body 3 are displaced in the vertical direction from the original position, are provided. Configured.

  The starting side upright body 2 and the displacement side upright body 3 are respectively stretchable members 21 and 31 that are stretchable along the axial direction, and embedded members 22 and 32 that are all or partly buried in the ground. It is composed of connecting members 23 and 33 such as screws and bolts for connecting the elastic members 21 and 31 and the embedded members 22 and 32. In addition, after the plate member 41 of the ground displacement simple measuring apparatus 1 is installed in a horizontal state, the expansion members 21 and 31 can be fixed so that the expansion and contraction is not performed.

  In this embodiment, the telescopic members 21 and 31 are located on the side of the embedded members 22 and 32, particularly on the upper side close to the horizontal displacement measuring member 4 as shown in FIGS. It is divided into members 21a and 31a and lower members 21b and 31b close to the embedded members 22 and 32, with the upper end portions of the lower members 21b and 31b sandwiched between the upper and lower members 21a and 31a. By connecting with the rotating shafts 21c and 31c, the upper members 21a and 31a of the telescopic members 21 and 31 swing in the longitudinal direction of the plate member 41 with respect to the lower members 21b and 31b about the rotating shafts 21c and 31c. It is possible to do.

  Although not shown, the embedded members 22 and 32 are divided into an upper member close to the telescopic members 21 and 31 and a lower member close to the ground, and the projecting portion at the upper end of the lower member is sandwiched between the two forks at the lower end of the upper member. The embedded members 22 and 32 may be swung in the longitudinal direction of the plate member 41 with the rotation shaft as an axis by connecting them with the rotation shaft.

  Further, in this embodiment, the expansion members 21 and 31 are provided with, for example, triangular reinforcing plates 24 and 34, whereby the standing bodies 2 and 3 having the expansion members 21 and 31, and thus the ground displacement simple measurement. The strength of the device 1 is improved.

  The placement mechanism 5 is displaced in a substantially horizontal direction (lateral direction) according to the amount of displacement of the displacement side standing body 3 when the displacement side standing body 3 is displaced in a state where the plate member 41 described below is placed. In this embodiment, the substrate 51 includes a pair of parallelly extending substrates 51 and a plurality (four in this embodiment) of rotating bodies 52 rotatably attached to each substrate 51. The substrate 51 is provided on the side of the starting side upright body 2 and extends along the longitudinal direction of the plate member 41. The rotating body 52 is formed on the outer sides of both the substrates 51 via a rotating shaft or the like. The side surfaces are arranged side by side along the longitudinal direction of the plate member 41.

  The horizontal displacement amount measuring member 4 is basically composed of a plate member 41 and an index member 42. The plate member 41 is a thin, thin, long, substantially rectangular parallelepiped member that is disposed in a laid-down state so as to extend over the starting-side standing body 2 and the displacement-side standing body 3, and is in the longitudinal direction (side-down direction). One end of the movable member 3 is fixed to the top of the upper end of the expansion / contraction member 31 of the displacement-side standing body 3, and the other end in the longitudinal direction (side-down direction) is 2 with a notch space 41c therebetween. The portions 41 a and 41 b of the plate member 41 are branched on the plurality of rotating bodies 52 provided on the substrates 51 of the mounting mechanism 5. On the upper surface of the plate member 41, there is provided a measurement display portion 41d composed of a plurality of scales engraved along the longitudinal direction of the plate member 41.

  The indicator member 42 includes a base portion 42a provided at a top portion of a portion of the starting-side standing body 2 that protrudes upward from the notch space 41c of the plate member 41 above the plate member 41, and the plate member 41 from the base portion 42a. And a bar-like body 42b extending along the longitudinal direction of the plate member 41, and the index body 7 is attached to the bar-like body 42b.

  An example of the configuration of the index body 7 will be described with reference to FIG. 2. A shaft portion 71 provided on the side surface of the rod-shaped body 42 b, an annular body 72 having a through hole 72 a through which the shaft portion 71 is inserted, and the annular body 72 It is composed of a weight part 73 protruding outward in the radial direction of the through hole 72a, and is attached to the shaft part 71 so as to be swingable by extrapolating the through hole 72a of the annular body 72 to the shaft part 71. The weight portion 73 of the indicator body 7 is in a state of pointing downward in the vertical direction regardless of whether the rod-like body 42b is horizontal.

  The vertical displacement amount measuring member 6 includes two tubular portions 61 and 62 and a tubular connecting portion 63 that connects and communicates the lower ends of the tubular portions 61 and 62 with each other. The tubular portions 61 and 62 are formed of a transparent or semi-transparent material such as glass or plastic that can be seen inside. In this embodiment, the tubular portions 61 and 62 are linear portions extending in the vertical direction. And the upper part of the tubular parts 61 and 62 is being fixed to the plate member 41 by being inserted in the through-hole 64a of the overhang | projection part 64 attached to the side surface of the plate member 41. FIG.

  The tubular connection part 63 is a tubular member that is flexible and can extend along the longitudinal direction, such as rubber and other resin, and is not in a stretched state between the tubular parts 61 and 62 but in a slightly slackened state. Are connected to the lower ends of the tubular portions 61 and 62. Each tubular portion 61, 62 has a plurality of scales 61a, 62a in the vertical direction, as shown in FIGS.

  The tubular portions 61 and 62 and the tubular connecting portion 63 constituting the vertical direction displacement measuring member 6 communicate with each other so as to form one storage body. In the tubular portions 61 and 62 and the tubular connecting portion 63, Is filled with water. The enclosed water may be transparent or colored, and may be a liquid having excellent fluidity other than water.

  Next, an example of a method for measuring minute displacements in both the horizontal direction and the vertical direction of the opening of the crack R generated in the inclined ground G by using the ground displacement simple measuring apparatus 1 described so far will be described with reference to FIG. And it demonstrates below using FIG.

  As shown in FIG. 4, when a ground crack R is found in an inclined ground G where a steel tower or the like is installed, the ground displacement simple measuring device 1 is first an upper side of the inclined ground G in the short direction of the opening of the ground crack R. The plate-like member 41 straddles the ground crack G while the starting-side vertical body 2 is positioned at the bottom and the displacement side vertical body 3 is positioned below the inclined ground G in the short direction of the opening of the ground crack R. Temporarily place it in a closed state.

  Next, the starting side upright body 2 and the displacement side upright body 3 so that the weight part 73 of the index body 7 constituting the index member 42 of the horizontal displacement amount measuring member 4 points to the deepest part r1 of the ground crack R, Adjust the interval. Adjustment of the space | interval of this origin side standing body 2 and the displacement side standing body 3 utilizes that the plate member 41 slides on the rotary body 52 of the mounting mechanism 5 provided in the origin side standing body 2. FIG. This is done by pushing the plate member 41 toward the starting side standing body 2 or pulling it away from the starting side standing body 2 side.

  Further, when the starting-side standing body 2 and the displacement-side standing body 3 are positioned, the embedded member 22 of the starting-side standing body 2 and the embedded member 32 of the displacement-side standing body 3 are placed on the inclined ground G at that position. Buried in the ground. In this case, it is desirable that the embedded member 22 of the starting side standing body 2 and the embedded member 32 of the displacement side standing body 3 are embedded in the vertical direction.

  Furthermore, the expansion member 21 and the displacement side standing body 2 of the starting side standing body 2 are arranged so that the plate member 41 is horizontal while maintaining the state in which the weight portion 73 of the index body 7 points to the deepest portion r1 of the crack R. 3 is appropriately expanded and contracted to adjust the vertical width of the expandable members 21 and 31.

  Thereby, the position pointed to by the weight part 73 of the index body 7 included in the index member 42 is measured, and this position is recorded as the position A (the position of the black inverted triangle in FIG. 4). An initial environment for measuring minute displacements in both the horizontal direction and the vertical direction of the opening is prepared.

  Then, after the initial environment for measuring the displacement of the size of the opening of the example ground crack G in the short direction is prepared, the region where the displacement-side standing body 3 is embedded is displaced, and the opening of the ground crack G When the size in the short direction is increased, the ground displacement simple measuring device 1 can measure the amount of displacement as follows.

  That is, the displacement side standing body 3 of the ground displacement simple measuring device 1 is displaced in the direction of the arrow in FIG. 5 with respect to the starting side standing body 2, and the starting side standing body 2 is not displaced. The plate member 41 fixed to 3 slides on the rotating body 52 of the mounting mechanism 5 provided on the starting side standing body 2, and the end of the plate member 41 on the starting side standing body 2 side faces the ground crack G side. Moving. Accordingly, the horizontal displacement measuring member 4 provided on the starting side standing body 2 is not displaced, so that the weight portion 73 of the indicator member 7 included in the indicator member 42 is indicated by the white arrow in FIG. Furthermore, since the plate member 41 is displaced from the position A (the same position as the position A in FIG. 4 at the position of the black inverted triangle in FIG. 5) to the starting side vertical body 2 side, this deviation has occurred. The position is measured and recorded as position B (the position of the white inverted triangle in FIG. 5). Then, by comparing the position A and the position B, it is possible to measure the progress of the spread in the short direction of the opening of the ground crack G. Therefore, it is possible to easily and reliably measure a minute displacement in the horizontal direction of the ground due to the progress of the ground crack G or the like.

  Further, in the inclined ground G, when the region where the displacement-side standing body 3 is embedded is displaced and the size of the opening of the ground crack G is increased in the short side direction, the displacement-side standing body 3 shown in FIG. The position in the vertical direction is also relatively lower than the position in the vertical direction of the displacement-side standing body 3 shown in FIG. Accordingly, the tubular connecting portion 63 of the vertical displacement measuring member 6 is also relatively lowered on the displacement side standing body 3 side than the starting side standing body 2 side, and the tubular portion of the vertical direction displacement measuring member 6 is 61 and 62, the liquid level in the tubular portion 61 is relatively low, and the liquid level in the tubular portion 62 is relatively high. Therefore, the liquid level in the tubular portions 61 and 62 is graduated. By measuring and recording at 61a and 62a and comparing with the previously measured and recorded values, it is possible to easily and reliably measure minute displacements in the vertical direction of the ground due to the progress of the ground crack G or the like. .

1 Ground Displacement Simple Measuring Device 2 Origin Side Standing Body (First Standing Body)
21 Stretching member 22 Buried member 23 Connecting member 3 Displacement side standing body (second standing body)
31 telescopic member 32 embedded member 33 connecting member 4 horizontal direction displacement measuring member (first measuring member)
41 Plate member 42 Indicator member 5 Placement mechanism 51 Substrate 52 Rotating body 6 Vertical displacement measuring member (second measuring member)
61 Tubular part 61a Scale 62 Tubular part 62a Scale 63 Tubular connecting part 7 Index body 71 Shaft part 72 Annular body 72a Through hole 73 Weight part G Inclined ground R Ground crack r1 Deepest part of ground crack (measurement target)

Claims (5)

A first standing body capable of burying the lower end in the ground;
A second vertical body capable of burying the lower end in the ground;
The first standing body includes a substrate provided so as to extend from the first standing body toward the second standing body, and a plurality of rotating bodies rotatably attached to the substrate. Mounted placement mechanism,
The first upright body and the second upright body are arranged in a laid-down state so as to extend over the second upright body, and the end of the second upright body side is fixed to the second upright body. In addition, the end portion on the first standing body side is placed on the rotating body of the placement mechanism, the plate member having the measurement display portion disposed on the upper surface, and the upper end of the first standing body A first measuring member constituted by an indicator member formed by attaching an indicator body to a rod-like body extending along the plate member from the base provided on the plate member;
A ground displacement simple measuring device characterized by comprising: It is composed of two tubular portions having a scale and allowing the inside to be seen, and a tubular connecting portion for connecting and communicating the lower ends of these tubular portions and made of a material that can be expanded and contracted in the axial direction. These tubular parts, further having a second measuring member in which a liquid is stored in the tubular connecting part,
One of the two tubular portions has an upper portion connected to an end portion of the plate member on the first standing body side, and the other tubular portion on the second standing body side of the plate member. The ground displacement simple measuring device according to claim 1, wherein an upper portion is connected to the end portion.   The first upright body and the second upright body include an elastic member that can be expanded and contracted in the vertical direction, an embedded member that embeds part or all of it in the ground, the elastic member and the embedded member, The ground displacement simple measuring device according to claim 1, wherein the ground displacement measuring device is configured by a connecting member that connects the two.   The whole or a part of the telescopic members of the first upright body and the second upright body can be swung in the sideways direction of the plate member. The ground displacement simple measuring device described. The indicator body of the indicator member of the first measurement member includes a shaft portion provided on a side surface of the rod-shaped body, an annular body having a through hole through which the shaft portion is inserted, and a diameter of the through hole from the annular body. It consists of a weight part protruding outward in the direction,
The ground displacement simple measuring device according to any one of claims 1 to 4, wherein the shaft portion is swingably attached to the shaft portion by extrapolating the through hole of the annular body to the shaft portion.

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