JP2010014435A - Settlement measuring device and method - Google Patents

Settlement measuring device and method Download PDF

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JP2010014435A
JP2010014435A JP2008172588A JP2008172588A JP2010014435A JP 2010014435 A JP2010014435 A JP 2010014435A JP 2008172588 A JP2008172588 A JP 2008172588A JP 2008172588 A JP2008172588 A JP 2008172588A JP 2010014435 A JP2010014435 A JP 2010014435A
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settlement
measurement
water
water tank
subsidence
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Katsuhiro Miyagawa
宮川勝洋
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Toyoko Elmes Co Ltd
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Toyoko Elmes Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a settlement measuring device can keep the temperature of inside water uniform, and prevent the occurrence of errors due to unevenness of temperature. <P>SOLUTION: The settlement measuring device measures a displacement of a construct by connecting a reference water tank and a plurality of settlement gauges with communicating pipes, and measuring changes in water level and pressure of measuring water being contained. In the settlement measuring device, the measuring water is circulated by connecting, with external pipes, the reference water tank and a settlement gauge being at a position the most distant from the reference water tank among the plurality of settlement gauges, and providing a carrier in a part of the external pipes or communicating pipes. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

本発明は、構造物の変位を測定するための沈下測定装置及び沈下測定方法に関するものである。   The present invention relates to a settlement measurement apparatus and a settlement measurement method for measuring displacement of a structure.

従来、構造物の変位を測定する装置として、水盛りの原理を利用した沈下測定装置が知られている。
この沈下測定装置は基準水槽と測定点に設置した沈下計とを連通管によって連結し、沈下計の水位や水圧の差異によって測定点の沈下量を測定するものである。 2. Description of the Related Art Conventionally, as a device for measuring the displacement of a structure, a settlement measurement device using the principle of water filling is known.
This settlement measuring device connects a reference water tank and a settlement meter installed at a measurement point by a communication pipe, and measures a settlement amount at a measurement point based on a difference in water level and water pressure of the settlement meter.

しかし、従来の沈下測定装置には、測定時に、沈下計や連通管内部の水に温度むらがあると、水の密度の変化から水位や水圧が変化し、誤差が生じるという問題があった。   However, the conventional subsidence measuring device has a problem in that if there is uneven temperature in the subsidometer or the water inside the communication pipe, the water level or water pressure changes due to the change in water density, resulting in an error.

本発明は、測定時に内部の水の温度を均一に保ち、温度による誤差が生じない沈下測定装置を提供する。   The present invention provides a settlement measurement apparatus that keeps the temperature of internal water uniform during measurement and does not cause an error due to temperature.

上記目的を達成するためになされた本願の第１発明は、基準水槽と複数の沈下計とを連通管によって連結し、内包する測定水の水位や圧力の変化を測定して構造物の変位を計測する、沈下測定装置であって、前記複数の沈下計の内、前記基準水槽から最も遠い位置の沈下計と、前記基準水槽とを、外部配管によって連結すると共に、前記外部配管又は前記連通管の一部に搬送機を設け、前記測定水を循環させることを特徴とする、沈下測定装置を提供する。
本願の第２発明は、第１発明の沈下測定装置において、前記沈下計及び前記搬送機と電気的に接続する制御部を有することを特徴とする、沈下測定装置を提供する。
本願の第３発明は、基準水槽と、複数の沈下計と、前記基準水槽と前記沈下計とに内包する測定水を循環する搬送機と、からなる沈下測定装置を使用した沈下測定方法であって、前記搬送機によって前記測定水を循環する、循環工程と、前記搬送機を停止する、停止工程と、前記沈下計によって変位を計測する、測定工程と、からなる、沈下測定方法を提供する。 The first invention of the present application made to achieve the above object is to connect a reference water tank and a plurality of subsidence meters by a communication pipe, and measure the change in the water level and pressure of the contained measurement water to measure the displacement of the structure. A subsidence measuring device for measuring, wherein the subsidence meter located farthest from the reference water tank among the plurality of subsidence meters and the reference water tank are connected by an external pipe, and the external pipe or the communication pipe A settlement apparatus is provided, wherein a conveyor is provided in a part of the apparatus and the measurement water is circulated.
A second invention of the present application provides a settlement measurement apparatus according to the first invention, wherein the settlement measurement apparatus includes a control unit that is electrically connected to the settlement meter and the transporter.
The third invention of the present application is a settlement measurement method using a settlement measurement device comprising a reference water tank, a plurality of settlement meters, and a transporter for circulating measurement water contained in the reference water tank and the settlement meter. And providing a settlement measurement method comprising: a circulation step of circulating the measurement water by the transporter; a stop step of stopping the transporter; and a measurement step of measuring displacement by the settlement meter. .

本発明は、上記した課題を解決するための手段により、次のような効果の少なくとも一つを得ることができる。
＜１＞沈下計や連通管内部の水を循環させて均一とするため、温度むらによる誤差が生じない。
＜２＞沈下計と搬送機と接続する制御部によって制御を行うため、内部の水の循環による乱流等の影響を受けず、安定した測定を行うことができる。 The present invention can obtain at least one of the following effects by means for solving the above-described problems.
<1> Since the water inside the subsidence meter and the communication pipe is circulated and made uniform, no error due to temperature unevenness occurs.
<2> Since the control is performed by the control unit connected to the settlement meter and the transporter, stable measurement can be performed without being affected by turbulence caused by internal water circulation.

（１）本発明の全体の構成
本発明に係る沈下測定装置は、構造物の変位を測定するためのものである。
本発明の沈下測定装置は、基準水槽１と、複数の沈下計２、基準水槽１と複数の沈下計２間を連結する連通管３、基準水槽１から最も離れた沈下計２１と基準水槽１とを連結する外部配管４からなる。また、外部配管４の一部には搬送機５を設ける。（図１）
基準水槽１、沈下計２、連通管３及び外部配管４の内部には測定水６が封入されている。
以下、各構成部材について説明する。 (1) Overall Configuration of the Present Invention A settlement measurement apparatus according to the present invention is for measuring the displacement of a structure.
The settlement measurement device of the present invention includes a reference water tank 1, a plurality of settlement meters 2, a communication pipe 3 connecting the reference water tank 1 and the plurality of settlement gauges 2, a settlement meter 21 and a reference water tank 1 farthest from the reference water tank 1. It consists of the external piping 4 which connects. Further, a conveyor 5 is provided in a part of the external pipe 4. (Figure 1)
Inside the reference water tank 1, the settlement meter 2, the communication pipe 3 and the external pipe 4, measurement water 6 is sealed.
Hereinafter, each component will be described.

（２）基準水槽
基準水槽１は、連通管３によって連結する沈下計２の水圧や水位を一定にするためのものである。
基準水槽１は、基準部水槽１１と回収補給槽１２の２槽からなる。基準水槽１の内部には測定水６が封入されている。（図１）
基準部水槽１１と回収補給槽１２との間は、所定の高さの堰１３によって仕切られている。 (2) Reference water tank The reference water tank 1 is for making the water pressure and water level of the settlement meter 2 connected by the communication pipe 3 constant.
The reference water tank 1 is composed of two tanks, a reference part water tank 11 and a recovery supply tank 12. Measurement water 6 is sealed inside the reference water tank 1. (Figure 1)
The reference portion water tank 11 and the collection and replenishment tank 12 are partitioned by a weir 13 having a predetermined height.

基準部水槽１１には、回収補給槽１２から給水ポンプ１４によって常に測定水６が供給されている。
基準部水槽１１に供給された測定水６は、堰１３を越えて溢れると再び回収補給槽１２に流れ込んで循環している。これによって、基準部水槽１１の水面は常に堰１３の高さと同一のレベルに保たれている。
基準部水槽１１には水面下で連通管３を接続し、連通管３の他方の端部は、沈下計２に接続する。
基準水槽１は沈下測定装置の基準の水位となるものであるため、高さの変動が生じない場所に設置する。 The reference water tank 11 is always supplied with the measurement water 6 from the collection and replenishment tank 12 by the water supply pump 14.
When the measurement water 6 supplied to the reference section water tank 11 overflows over the weir 13, it flows again into the recovery supply tank 12 and circulates. Thus, the water surface of the reference section water tank 11 is always kept at the same level as the height of the weir 13.
The communication pipe 3 is connected to the reference portion water tank 11 under the water surface, and the other end of the communication pipe 3 is connected to the settlement meter 2.
Since the reference water tank 1 serves as a reference water level for the settlement measurement apparatus, it is installed in a place where the height does not vary.

（３）沈下計
沈下計２は構造物の変位を測定する位置に配置し、内部の測定水６の圧力差や水位差により、測定位置の沈下量を求めるためのものである。
沈下計２には、例えばベローズと差動トランスで構成され、水圧の変動によるベローズの変形によって差動トランスのコアが移動し、コイルとの間の相対変位に比例して発生する電圧を変換して沈下量を得る装置を用いる。 (3) Subsidence meter The subsidence meter 2 is disposed at a position where the displacement of the structure is measured, and is used to determine the amount of settlement at the measurement position based on the pressure difference or water level difference of the internal measurement water 6.
The settlement meter 2 is composed of, for example, a bellows and a differential transformer, and the core of the differential transformer moves due to deformation of the bellows due to fluctuations in water pressure, and converts the voltage generated in proportion to the relative displacement between the coils. Use a device to obtain the amount of settlement.

沈下計２は構造物のうち変位を測定したい複数の任意の場所に設置する。
隣接する沈下計２間は連通管３によって連結する。沈下計２のうち、最も基準水槽１に近い沈下計２２は、連通管３によって基準水槽１と連結する。
沈下計２のうち、最も基準水槽１から遠い沈下計２１は、外部配管４によって基準水槽１と連結する。
外部配管４は、回収補給槽１２の水面下で基準水槽１に接続する。
外部配管４の一部には、ポンプ等の搬送機５を設ける。また、搬送機５の近傍には、外部配管４内部の測定水６を遮断・通過させる弁５１を設ける。
このように構成することにより、基準水槽１、外部配管４、沈下計２、連通管３でループ構造となり、外部配管４に搬送機５を設けることにより、内部の測定水６を循環させることができる。
搬送機５は外部配管４に限らず、連通管３等のループ構造の一部に設けてもよい。
また、外部配管４や連通管３等のループ構造の一部にはクーラーやヒーター等の温度調節器８を設けてもよい。
連通管３および外部配管４は、沈下計２が構造物の変位に追従して移動できるように、合成樹脂等の可撓性を有する材料からなる。 The subsidence meter 2 is installed in a plurality of arbitrary locations where displacement is to be measured.
Adjacent settlement meters 2 are connected by a communication pipe 3. Of the subsidence meters 2, the subsidence meter 22 closest to the reference water tank 1 is connected to the reference water tank 1 through the communication pipe 3.
Of the subsidence meters 2, the subsidence meter 21 farthest from the reference water tank 1 is connected to the reference water tank 1 by an external pipe 4.
The external pipe 4 is connected to the reference water tank 1 under the water surface of the collection and replenishment tank 12.
A transporter 5 such as a pump is provided in a part of the external pipe 4. Further, in the vicinity of the transfer device 5, a valve 51 for blocking and passing the measurement water 6 inside the external pipe 4 is provided.
With this configuration, the reference water tank 1, the external pipe 4, the settlement meter 2, and the communication pipe 3 form a loop structure, and the internal measurement water 6 can be circulated by providing the transport pipe 5 in the external pipe 4. it can.
The conveyor 5 is not limited to the external pipe 4 and may be provided in a part of the loop structure such as the communication pipe 3.
Further, a temperature controller 8 such as a cooler or a heater may be provided in a part of the loop structure such as the external pipe 4 or the communication pipe 3.
The communication pipe 3 and the external pipe 4 are made of a flexible material such as synthetic resin so that the settlement meter 2 can move following the displacement of the structure.

（４）制御部
制御部７は、沈下計２や搬送機５、弁５１と電気的に接続し、制御を行うものである。
制御部７は、パソコンであったり、沈下計用の測定装置等を組み合わせたものである。
制御部７は、沈下計２からの信号によって沈下量を求める機能、搬送機５の運転・停止信号を送る機能、弁５１の開閉信号を送る機能、及びそれらを組み合わせてタイマーや時刻に合わせて制御を行う機能等を有する。 (4) Control part The control part 7 is electrically connected with the settlement meter 2, the conveyance machine 5, and the valve 51, and performs control.
The control unit 7 is a personal computer or a combination of a measuring device for a settlement meter.
The control unit 7 has a function for obtaining the amount of settlement based on a signal from the settlement meter 2, a function for sending an operation / stop signal for the transport machine 5, a function for sending an opening / closing signal for the valve 51, and a combination thereof to match a timer or time. It has a function to perform control.

［測定方法］
次に、上記のように構成した沈下測定装置を用いて構造物の変位を測定する方法について説明する。 [Measuring method]
Next, a method for measuring the displacement of the structure using the settlement measuring apparatus configured as described above will be described.

（１）循環
沈下測定装置の測定水６を搬送機５によって循環する。
循環は、制御部７から弁５１への開信号及び搬送機５への起動信号を送り、弁５１を開き、搬送機５を起動して行う。（ステップ１００）
測定水６は搬送機５によって、基準水槽１の回収補給槽１２から搬送機５、外部配管４、沈下計２１、連通管３、沈下計２を経由して、基準部水槽１１に戻り、基準部水槽１１からオーバーフローした測定水６が回収補給槽１２に流れ込み、循環している。また、基準水槽１内部でも、給水ポンプ１４によって循環している。
循環することによって、測定水６の温度むらが無くなり、沈下計２および連通管３の内部の測定水６が均一な温度となる。
また、温度調節器８によって測定水６の温度も一定に調節され、沈下計２および連通管３の内部の測定水６がより均一な温度に保たれる。
この間、給水ポンプ１４は起動されており、また、循環した測定水６も基準部水槽１１に戻されるため、基準部水槽１１の水位は常に一定に保たれている。 (1) Circulation The measurement water 6 of the settlement measurement device is circulated by the carrier 5.
Circulation is performed by sending an opening signal from the control unit 7 to the valve 51 and an activation signal to the conveyor 5, opening the valve 51, and activating the conveyor 5. (Step 100)
The measured water 6 is returned to the reference water tank 11 by the transport device 5 from the recovery supply tank 12 of the reference water tank 1 via the transport device 5, the external pipe 4, the settlement meter 21, the communication tube 3, and the settlement meter 2. The measurement water 6 overflowed from the partial water tank 11 flows into the recovery supply tank 12 and is circulated. Further, the water supply pump 14 circulates also inside the reference water tank 1.
By circulating, the temperature unevenness of the measurement water 6 is eliminated, and the measurement water 6 inside the settlement meter 2 and the communication pipe 3 becomes a uniform temperature.
Further, the temperature of the measurement water 6 is also adjusted to be constant by the temperature controller 8, and the measurement water 6 inside the settlement meter 2 and the communication pipe 3 is kept at a more uniform temperature.
During this time, the water supply pump 14 is activated, and the circulated measurement water 6 is also returned to the reference part water tank 11, so that the water level of the reference part water tank 11 is always kept constant.

（２）停止
沈下計２による沈下量の計測にあたって、予め定めた沈下量の計測時刻から所定の時間（４〜５分）前に、図２のように、制御部７から搬送機５への停止信号及び弁５１への閉信号を送り、搬送機５を停止し、弁５１を閉じる。（ステップ１１０）
これにより、測定水６の循環が止まり、静止状態となる。
制御部７に内蔵するタイマー等により、停止後には、次の工程までの所定の待機時間を設ける。（ステップ１２０）
この待機時間を設けることによって、循環していた測定水６が静止して、流れや内部の水圧が安定し、沈下計２による計測に適した環境となる。
この間、給水ポンプ１４は起動されており、基準部水槽１１の水位は常に一定に保たれている。 (2) Stop When measuring the amount of subsidence by the subsidence meter 2, before the predetermined time (4 to 5 minutes) from the time of measurement of the amount of subsidence, as shown in FIG. A stop signal and a close signal to the valve 51 are sent to stop the conveyor 5 and close the valve 51. (Step 110)
As a result, the circulation of the measurement water 6 stops and the stationary state is established.
A predetermined waiting time until the next step is provided after the stop by a timer or the like built in the control unit 7. (Step 120)
By providing this waiting time, the circulating measurement water 6 is stationary, the flow and the internal water pressure are stabilized, and an environment suitable for measurement by the settlement meter 2 is obtained.
During this time, the water supply pump 14 is activated, and the water level of the reference section water tank 11 is always kept constant.

（３）測定
搬送機５の停止から所定の時間経過後に、沈下計２による変位の計測を行う。（ステップ１３０）
構造物のうち、沈下計２の設置場所の高さに変位が生じると、基準水槽１との相対高さに変位が生じる。
基準水槽１と沈下計２とは連通管３で連結されており、内部の測定水６も一体となっている。このため沈下計２の高さの変位に合わせて、沈下計２内部の水位や水圧が変化する。
この変化によって、基準水槽１に対する測定場所の変化量を計測することができる。
この変化量が沈下計２から制御部７に送られて、沈下計２が設置された複数個所の変化量が計測される。
測定終了後、制御部７から弁５１への開信号及び搬送機５への起動信号を送り、弁５１を開き、搬送機５を起動する。（ステップ１４０）
複数回、時間を置いて測定する場合には、上記の工程を繰り返して行う。（ステップ１４０＝ステップ１００） (3) Measurement After a predetermined time has elapsed from the stop of the conveyor 5, the displacement is measured by the settlement meter 2. (Step 130)
When a displacement occurs in the height of the installation place of the settlement meter 2 in the structure, a displacement occurs in a relative height with respect to the reference water tank 1.
The reference water tank 1 and the settlement meter 2 are connected by a communication pipe 3, and the internal measurement water 6 is also integrated. For this reason, according to the displacement of the height of the squat meter 2, the water level and water pressure inside the squat meter 2 change.
By this change, the change amount of the measurement place with respect to the reference water tank 1 can be measured.
The amount of change is sent from the subsidometer 2 to the control unit 7, and the amount of change at a plurality of locations where the subsidometer 2 is installed is measured.
After the measurement is completed, an opening signal to the valve 51 and an activation signal to the transport device 5 are sent from the control unit 7 to open the valve 51 and start the transport device 5. (Step 140)
When measuring several times over time, the above steps are repeated. (Step 140 = Step 100)

測定中に、沈下計２と連通管３内部の測定水６に温度むらがあると、測定水６の密度が変化し、沈下計２での測定値に誤差が生じてしまう。
しかし、本発明の沈下測定装置は測定前に、測定水６が循環されて均一な温度に保たれているため、温度むらによる誤差が生じることがない。 During measurement, if there is uneven temperature in the measurement water 6 inside the settlement meter 2 and the communication pipe 3, the density of the measurement water 6 changes and an error occurs in the measurement value in the settlement meter 2.
However, in the settlement measuring apparatus of the present invention, the measurement water 6 is circulated and kept at a uniform temperature before the measurement, so that an error due to temperature unevenness does not occur.

上記の循環・静止・測定の各工程の切り換えは、制御部７によって自動的に行う。
沈下計２、搬送機５、弁５１を制御部７に接続し、予め測定時刻を定めておくことによって、各工程を繰り返して計測を行うことができるため、変位の監視効率が向上する。 Switching between the circulation, stationary, and measurement steps is automatically performed by the control unit 7.
By connecting the settlement meter 2, the transport device 5, and the valve 51 to the control unit 7 and setting the measurement time in advance, each step can be repeated and measurement can be performed, so that the displacement monitoring efficiency is improved.

本発明に係る沈下測定装置の説明図Explanatory drawing of the settlement measuring apparatus according to the present invention 本発明に係る沈下測定方法の説明図Explanatory drawing of the settlement measurement method concerning the present invention

符号の説明Explanation of symbols

１ 基準水槽
１１ 基準部水槽
１２ 回収補給槽
１３ 堰
１４ ポンプ
２ 沈下計
３ 連通管
４ 外部配管
５ 搬送機
５１ 弁
６ 測定水
７ 制御部
８ 温度調節器 DESCRIPTION OF SYMBOLS 1 Reference | standard water tank 11 Reference | standard part water tank 12 Collection | recovery replenishment tank 13 Weir 14 Pump 2 Subsidence meter 3 Communication pipe 4 External piping 5 Transporter 51 Valve 6 Measuring water 7 Control part 8 Temperature controller

Claims (3)

基準水槽と複数の沈下計とを連通管によって連結し、内包する測定水の水位や圧力の変化を測定して構造物の変位を計測する、沈下測定装置であって、
前記複数の沈下計の内、前記基準水槽から最も遠い位置の沈下計と、前記基準水槽とを、外部配管によって連結すると共に、
前記外部配管又は前記連通管の一部に搬送機を設け、
前記測定水を循環させることを特徴とする、
沈下測定装置。 A subsidence measuring device that connects a reference water tank and a plurality of subsidence meters through a communication pipe, and measures the displacement of the structure by measuring changes in the water level and pressure of the contained measurement water,
Among the plurality of subsidence meters, the subsidence meter farthest from the reference water tank and the reference water tank are connected by an external pipe,
A conveyor is provided in a part of the external pipe or the communication pipe,
The measurement water is circulated,
Settlement measuring device. 請求項１に記載の沈下測定装置において、前記沈下計及び前記搬送機と電気的に接続する制御部を有することを特徴とする、沈下測定装置。 The settlement measurement apparatus according to claim 1, further comprising a control unit that is electrically connected to the settlement meter and the transporter. 基準水槽と、複数の沈下計と、前記基準水槽と前記沈下計とに内包する測定水を循環する搬送機と、からなる沈下測定装置を使用した沈下測定方法であって、
前記搬送機によって前記測定水を循環する、循環工程と、
前記搬送機を停止する、停止工程と、
前記沈下計によって変位を計測する、測定工程と、からなる、
沈下測定方法。 A subsidence measuring method using a subsidence measuring device comprising a reference water tank, a plurality of subsidence meters, and a transporter for circulating measurement water contained in the reference water tank and the subsidence meter,
A circulation step of circulating the measurement water by the transporter;
Stopping the transfer machine; and
Measuring displacement by the subsidence meter, and comprising a measurement step,
Settlement measurement method.
JP2008172588A 2008-07-01 2008-07-01 Settlement measuring device and method Pending JP2010014435A (en)

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CN117782015A (en) * 2024-02-23 2024-03-29 中铁九局集团有限公司 Bridge gate pier construction settlement monitoring equipment

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JP2012137395A (en) * 2010-12-27 2012-07-19 Aron Denki Co Ltd Defoaming device
CN102410906A (en) * 2011-08-04 2012-04-11 江苏省常州技师学院 High-efficient horizontal testing instrument
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CN105716570A (en) * 2016-01-28 2016-06-29 河海大学 Adjustable settlement measurement device based on multiple resistance type pore pressure meters and measurement method
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CN116337006B (en) * 2023-05-25 2023-07-25 广东润宇传感器股份有限公司 Height difference measurement stability improving method and device based on corrugated pipe
CN117782015A (en) * 2024-02-23 2024-03-29 中铁九局集团有限公司 Bridge gate pier construction settlement monitoring equipment
CN117782015B (en) * 2024-02-23 2024-05-07 中铁九局集团有限公司 Bridge gate pier construction settlement monitoring equipment

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