JP6692132B2 - Displacement measuring method and displacement measuring system - Google Patents

Displacement measuring method and displacement measuring system Download PDF

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JP6692132B2
JP6692132B2 JP2015162475A JP2015162475A JP6692132B2 JP 6692132 B2 JP6692132 B2 JP 6692132B2 JP 2015162475 A JP2015162475 A JP 2015162475A JP 2015162475 A JP2015162475 A JP 2015162475A JP 6692132 B2 JP6692132 B2 JP 6692132B2
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卓也 谷
卓也 谷
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Taisei Corp
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Description

本発明は、変位測定方法および変位測定システムに関する。   The present invention relates to a displacement measuring method and a displacement measuring system.

トンネル施工中の地表面や、盛土等の人工的な地盤等では、定期的に測量を行い、地盤の変位（沈下や隆起）を測定する必要がある。
地盤の変位測量は、地表面に設けられた測点の標高または基準点との高低差を、レベルと標尺を利用したいわゆるレベル測量により測定するのが一般的である。ところが、レベル測量による沈下測量は、基準点を適宜移設する作業が必要となる。そのため、高低差や距離が大きくなると、測量に手間と時間がかかる。
そのため、特許文献１には、測量器の移設を省略した計測方法として、測点となる反射体を地表面に設置して、この反射体をトータルステーションにより計測する計測方法が開示されている。 On the ground surface during construction of a tunnel or artificial ground such as embankment, it is necessary to regularly measure and measure the displacement (subsidence or uplift) of the ground.
In the ground displacement measurement, it is general to measure a height difference between an elevation of a measurement point provided on the ground surface or a reference point by so-called level measurement using a level and a staff. However, the settlement measurement by leveling requires the work to move the reference point appropriately. Therefore, when the height difference or the distance becomes large, it takes time and effort for the survey.
Therefore, Patent Document 1 discloses a measurement method in which a reflector serving as a measuring point is installed on the ground surface and a total station measures the reflector, as a measurement method in which relocation of a surveying instrument is omitted.

特開平０５−０７１９６０号公報Japanese Patent Laid-Open No. 05-071960

特許文献１に記載の計測方法では、各測点を視認可能な位置にトータルステーションを設置する必要があるが、必ずしもトータルステーションを所定の位置に設置することができるとは限らない。特に、山間部のトンネルの地表面における沈下測量では、測点が坑口からは見通しが悪いため、測量時にトンネルの上方にトータルステーションを据え付ける必要があり、作業に手間がかかる。   In the measurement method described in Patent Document 1, the total station needs to be installed at a position where each measurement point can be visually recognized, but the total station cannot always be installed at a predetermined position. In particular, in subsidence surveying on the ground surface of a tunnel in a mountainous area, since the measurement point is not clearly visible from the wellhead, it is necessary to install a total station above the tunnel at the time of surveying, which requires a lot of work.

このような観点から、本発明は、見通しが悪い位置の地盤の変位測量を簡易に行うことを可能とした変位測定方法および変位測定システムを提案することを課題とする。   From such a viewpoint, it is an object of the present invention to propose a displacement measuring method and a displacement measuring system capable of easily performing displacement measurement of the ground at a position with poor visibility.

前記課題を解決するために、本発明の変位測定方法は、地表面に設けられた測点の変位量を測定するものであって、不動点である基準点から中継点の変位量を測定する中継点測定作業と、前記測点に設けられた標尺に向けて前記中継点から水平方向にレーザー光を照射するとともに前記レーザー光が照射された前記標尺の数値を読み取る測点測定作業とを備え、前記中継点測定作業では、前記中継点に設けた第二の標尺に向けて前記基準点から照射方向が固定されたレーザー光を照射し、前記レーザー光の到達点における前記第二の標尺の数値を読み取り、前記測点測定作業では、前記中継点において、前記レーザー光を照射するレーザー照準器が設置された回転台座上で前記レーザー照準器に並設されたカメラにより前記標尺の数値を撮影することを特徴としている。 In order to solve the above-mentioned problems, the displacement measuring method of the present invention is for measuring the amount of displacement of a measuring point provided on the ground surface, and measuring the amount of displacement of a relay point from a reference point which is a fixed point. A relay point measurement operation and a measurement point measurement operation of horizontally irradiating a laser beam from the relay point toward a staff provided at the measuring point and reading a numerical value of the staff irradiated with the laser light are provided. In the relay point measurement work, a laser beam whose irradiation direction is fixed from the reference point is radiated toward the second staff provided at the relay point, and the second staff at the arrival point of the laser light of the second staff. read-numeric, wherein in the measuring point measuring operation, at the relay point, the value of the staff by a camera laser sight for irradiating the laser beam is arranged in the laser sight on the installed rotary seat Shooting It is characterized in that that.

かかる変位測定方法によれば、各測点の標尺に向けてレーザー光を照射し、レーザー光の到達点における標尺の数値を読み取るのみで中継点を基準とした測点の変位量を測定することができるため、簡易に沈下測量を行うことができる。また、基準点から変位量を測定することで中継点の変位量を測定するため、中継点に変位が生じた場合であっても、各測点および中継点の変位量を簡易に測定することができる。したがって、基準点からは見通しが悪い測点の沈下測量を簡易に行うことができる。   According to such a displacement measuring method, the laser beam is irradiated toward the staff of each measuring point, and the displacement amount of the measuring point with the relay point as a reference is measured only by reading the numerical value of the staff at the arrival point of the laser light. Therefore, settlement measurement can be performed easily. Also, since the displacement amount of the relay point is measured by measuring the displacement amount from the reference point, even if the displacement occurs at the relay point, the displacement amount of each measuring point and relay point can be easily measured. You can Therefore, it is possible to easily perform subsidence measurement of a station that has poor visibility from the reference point.

前記中継点にカメラが設けられているため、前記測点測定作業において前記カメラにより前記標尺の数値を撮影することで、測点の変位量を離れた位置からでも確認することができる。 Because not the camera is provided on the relay point, by taking a value of the staff by the camera at the measuring point the measuring operation can be confirmed even from a position away the displacement of the measurement point.

また、本発明の変位測定システムは、測点に立設された標尺と、中継点に設けられた回転台座上から前記標尺にレーザー光を照射するレーザー照準器と、前記回転台座上において前記レーザー照準器と並設されて前記標尺を撮影するカメラと、前記中継点に設けられた第二の標尺と、不動点である基準点から前記第二の標尺に対して照射方向が固定されたレーザー光を照射する第二のレーザー照準器とを備えていることを特徴としている。 Further, the displacement measuring system of the present invention comprises a staff standing on a measuring point, a laser sighting device for irradiating the staff with laser light from a rotary pedestal provided at a relay point, and the laser on the rotary pedestal. A camera which is installed in parallel with a sighting device to photograph the staff, a second staff provided at the relay point, and a laser whose irradiation direction is fixed to the second staff from a reference point which is a fixed point. And a second laser sighting device for irradiating light.

かかる変位測定システムは、中継点測定手段により中継点の変位量を測定するとともに、標尺に照射されたレーザー光を撮影したカメラの映像により、各測点の変位を測定することを可能としている。そのため、基準点から見通しが悪い位置の変位量の測定を簡易に行うことができる。   In such a displacement measuring system, it is possible to measure the amount of displacement of the relay point by the relay point measuring means, and to measure the displacement of each measuring point by the image of the camera that photographs the laser light irradiated on the staff. Therefore, it is possible to easily measure the displacement amount at a position where visibility is poor from the reference point.

前記レーザー照準器および前記カメラが、前記中継点に設けられた回転台座上に設けられていれば、点在する複数の測点を一つの中継点から測定することができる。
また、前記中継点測定手段が、前記中継点に立設された第二の標尺と、前記基準点に設けられて前記第二の標尺にレーザー光を照射する第二のレーザー照準器とを備えたものであれば、より簡易に中継点の変位測定を行うことができる。 If the laser sighting device and the camera are provided on a rotary pedestal provided at the relay point, a plurality of scattered measurement points can be measured from one relay point.
In addition, the relay point measuring means includes a second staff provided upright at the relay point and a second laser sighting device that is provided at the reference point and irradiates the second staff with laser light. With this configuration, the displacement of the relay point can be measured more easily.

本発明の変位測定方法および変位測定システムによれば、見通しが悪い位置の沈下測量を簡易に行うことが可能となる。また、計測時における斜面の上り下りや、足場の悪い立地における計測の手間を省略し、かつ、所望の計測頻度による計測が可能なため、より確実な沈下測量を行うことができる。   According to the displacement measuring method and the displacement measuring system of the present invention, it becomes possible to easily perform the subsidence measurement at a position with poor visibility. Further, since it is possible to omit the ups and downs of the slope at the time of measurement and the time and effort of measurement in a location where the scaffolding is bad and to perform measurement at a desired measurement frequency, it is possible to perform more reliable settlement measurement.

本発明の実施形態の変位測定システムの概要を示す縦断図である。It is a longitudinal section showing an outline of a displacement measuring system of an embodiment of the present invention. 図１の変位測定システムの平面図である。It is a top view of the displacement measuring system of FIG.

本実施形態では、トンネル掘削による影響を把握することを目的として、本発明の変位測定方法によりトンネルの上方の地表面の変位量を測定する場合について説明する。
本実施形態の変位測定方法は、図１および図２に示す変位測定システム１を利用する。 In the present embodiment, a case will be described in which the displacement amount of the ground surface above the tunnel is measured by the displacement measuring method of the present invention for the purpose of grasping the influence of tunnel excavation.
The displacement measuring method of the present embodiment uses the displacement measuring system 1 shown in FIGS. 1 and 2.

変位測定システム１は、測点用標尺（標尺）１１と、測点用レーザー照準器（レーザー照準器）１２と、カメラ１３と、中継点用標尺（第二の標尺）１４と、中継点用レーザー照準器（第二のレーザー照準器）１５とを備えている。
測点用標尺１１は、各測点３に埋め込まれた標尺基礎３１に立設されている。なお、測点用標尺１１の設置方法は限定されない。
測点用標尺１１は、目盛が付された棒状部材であって、少なくとも目盛の上端が測点用レーザー照準器１２よりも高い位置で、かつ、目盛の下端が測点用レーザー照準器１２よりも低い位置となるように設けられている。
なお、測点用標尺１１の構成は限定されるものではなく、いわゆる測量用スタッフや測量用ロッド等を使用すればよい。 The displacement measuring system 1 includes a measuring station staff (leveling staff) 11, a measuring point laser sighting apparatus (laser sighting apparatus) 12, a camera 13, a relay point staff (second staff) 14, and a relay point. And a laser sighting device (second laser sighting device) 15.
The station staff 11 is erected on a staff foundation 31 embedded in each station 3. The method for installing the measuring staff 11 is not limited.
The station staff 11 is a rod-shaped member with a scale, at least the upper end of the scale is higher than the laser sight 12 for the station, and the lower end of the scale is more than the laser sight 12 for the station. Is also set to be in a low position.
The configuration of the measuring staff 11 is not limited, and so-called surveying staff, surveying rods, or the like may be used.

測点３は、トンネル２の上方の地表面に複数設けられている。本実施形態では、トンネル軸に沿った任意の位置（トンネル軸の左右の所定の範囲内）に測点３を設けているが、測点３の設置個所は、測点用レーザー照準器１２から照射したレーザー光ＬＢが測点用標尺１１に到達できる位置であれば、限定されるものではない。
なお、測点３は、トンネル２の掘進前から設けておいてもよいし、トンネル２の掘進に伴い、適宜増設してもよい。 A plurality of measuring points 3 are provided on the ground surface above the tunnel 2. In the present embodiment, the measuring point 3 is provided at an arbitrary position along the tunnel axis (within a predetermined range on the left and right of the tunnel axis), but the installation point of the measuring point 3 is from the laser aiming device 12 for the measuring point. It is not limited as long as the irradiated laser beam LB can reach the measuring staff 11.
The measuring points 3 may be provided before the tunnel 2 is dug, or may be added as needed as the tunnel 2 is dug.

測点用レーザー照準器１２は、中継点４に設けられている。本実施形態の中継点４は、トンネル２の坑口の斜面上に設けるが、中継点４の設置個所は、限定されるものではない。
測点用レーザー照準器１２は、測点用標尺１１に向けて、水平にレーザー光ＬＢを照射する。本実施形態では、中継点４に設けられた回転台座１６の上に測点用レーザー照準器１２が設けられている。測点用レーザー照準器１２は、回転台座１６の回転により、鉛直軸を中心に回転する。すなわち、測点用レーザー照準器１２は、水平面内で回転させることで、各測点用標尺１１に向けられる。 The laser sighting device 12 for measuring points is provided at the relay point 4. The relay point 4 of the present embodiment is provided on the slope of the wellhead of the tunnel 2, but the installation location of the relay point 4 is not limited.
The measuring point laser sighting device 12 irradiates the measuring point staff 11 with the laser light LB horizontally. In the present embodiment, the laser sighting device 12 for measuring points is provided on the rotary pedestal 16 provided at the relay point 4. The laser sighting device 12 for measuring points is rotated about the vertical axis by the rotation of the rotary base 16. That is, the laser sighting device 12 for measuring points is turned to each measuring rod 11 for measuring by rotating in the horizontal plane.

カメラ１３は、中継点４に設けられていて、測点用標尺１１を撮影する。本実施形態のカメラ１３は、回転台座１６の上に測点用レーザー照準器１２とともに設けられている。カメラ１３は、測点用レーザー照準器１２の照射方向の撮影が可能となるように設けられており、測点用レーザー照準器１２とともに鉛直軸を中心に回転する。
本実施形態では、カメラ１３で取得された画像データが、現場事務所のモニターに表示されるように、構成されている。つまり、カメラ１３で取得された画像データは、無線または有線の通信回線を介して、図示せぬモニター（コンピュータ）に送信される。また、本実施カメラ１３は、現場事務所においてズーム、ピント、方向等を遠隔操作することが可能に構成されている。 The camera 13 is provided at the relay point 4 and takes an image of the station staff 11. The camera 13 of the present embodiment is provided on the rotary base 16 together with the laser sighting device 12 for measuring points. The camera 13 is provided so as to be able to capture an image in the irradiation direction of the measuring point laser aiming device 12, and rotates around the vertical axis together with the measuring point laser aiming device 12.
In this embodiment, the image data acquired by the camera 13 is configured to be displayed on the monitor of the field office. That is, the image data acquired by the camera 13 is transmitted to a monitor (computer) (not shown) via a wireless or wired communication line. Further, the camera 13 of the present embodiment is configured so that the zoom, focus, direction, etc. can be remotely controlled in the field office.

回転台座１６は、台座基礎４１に立設された脚部１７の上端において回転可能に支持されている。なお、回転台座１６の構成は限定されるものではない。台座基礎４１は、中継点４に形成されている。
また、本実施形態では、測点用レーザー照準器１２およびカメラ１３を、回転台座１６上において上下に配置しているが、測点用レーザー照準器１２とカメラ１３とを左右に併設してもよく、その配置は限定されない。また、測点用レーザー照準器１２およびカメラ１３は、それぞれ異なる台座に設けられていてもよい。
回転台座１６の高さは、測点３の標高に応じて設定する。すなわち、測点３の標高が、中継点４の標高よりも高い場合には、脚部１７を長くして回転台座１６の位置を高くする。 The rotary pedestal 16 is rotatably supported at the upper ends of the leg portions 17 erected on the pedestal base 41. The configuration of the rotary pedestal 16 is not limited. The pedestal base 41 is formed at the relay point 4.
Further, in the present embodiment, the laser aiming device for measuring point 12 and the camera 13 are arranged vertically on the rotary pedestal 16. However, even if the laser aiming device for measuring point 12 and the camera 13 are provided side by side. Well, the arrangement is not limited. Moreover, the laser aiming device for measuring point 12 and the camera 13 may be provided on different pedestals.
The height of the rotary pedestal 16 is set according to the altitude of the measuring point 3. That is, when the elevation of the measuring point 3 is higher than the elevation of the relay point 4, the leg 17 is lengthened to increase the position of the rotary pedestal 16.

中継点用標尺１４および中継点用レーザー照準器１５は、中継点４の変位量を測定する中継点測定手段を構成している。
中継点用標尺１４は、回転台座１６の脚部１７に固定されていることで、中継点４に立設されている。なお、中継点用標尺１４の設置方法は限定されるものではなく、台座基礎４１により支持されていてもよい。
中継点用レーザー照準器１５は、中継点用標尺１４にレーザー光ＬＢを照射することが可能な状態で、不動点である基準点５に据え付けられている。なお、中継点用レーザー照準器１５は、基準点５において、照射方向が変化することがないように固定されている。 The relay point staff 14 and the relay point laser sighting device 15 constitute a relay point measuring means for measuring the displacement amount of the relay point 4.
The relay point staff 14 is erected at the relay point 4 by being fixed to the leg portions 17 of the rotary pedestal 16. The installation method of the relay point staff 14 is not limited, and may be supported by the base 41.
The relay point laser sighting device 15 is installed at the reference point 5 which is a fixed point in a state where the relay point staff 14 can be irradiated with the laser light LB. The relay point laser sighting device 15 is fixed at the reference point 5 so that the irradiation direction does not change.

変位測定システム１を利用した変位測定方法は、中継点測定作業と、測点測定作業とを備えている。
中継点測定作業では、中継点用標尺１４および中継点用レーザー照準器１５を利用して、基準点５から中継点４の変位量を測定する。
中継点４の変位測定は、中継点用標尺１４に向けて、中継点用レーザー照準器１５からレーザー光ＬＢを照射し、レーザー光ＬＢの到達点における中継点用標尺１４の数値を読み取ることにより行う。すなわち、レーザー光ＬＢの到達点における中継点用標尺１４の数値が変化したか否かを確認する。なお、中継点用標尺１４の数値の確認は、カメラにより撮影した画像を利用してもよい。
なお、中継点測定作業は、所定の時間毎に自動的に実施してもよいし、手動により実施してもよい。 The displacement measuring method using the displacement measuring system 1 includes a relay point measuring operation and a measuring point measuring operation.
In the relay point measurement work, the displacement amount from the reference point 5 to the relay point 4 is measured using the relay point staff 14 and the relay point laser sighting device 15.
The displacement of the relay point 4 is measured by irradiating the laser beam LB from the relay point laser sighting device 15 toward the relay point staff 14 and reading the numerical value of the relay point staff 14 at the arrival point of the laser light LB. To do. That is, it is confirmed whether the numerical value of the relay point staff 14 at the arrival point of the laser beam LB has changed. In addition, you may utilize the image image | photographed with the camera for confirmation of the numerical value of the staff 14 for relay points.
The relay point measurement work may be performed automatically at predetermined time intervals or may be performed manually.

測点測定作業では、各測点３，３，…の変位量を中継点４から測定する。
測点３の変位測定を行う場合には、まず、測点用標尺１１に向けて測点用レーザー照準器１２から水平方向にレーザー光ＬＢを照射するとともに、カメラ１３によりレーザー光ＬＢが照射された測点用標尺１１を撮影する。他の測点３の変位測定を行う場合には、回転台座１６を回転させる。
測定者は、カメラ１３により撮影された画像から、レーザー光ＬＢが照射された測点用標尺１１の数値を読み取ることで、トンネル２の施工に伴う測点３の変位量を測定する。
なお、中継点測定作業において中継点４の変位が確認された場合には、測点測定作業における測定結果に中継点４の変位量を反映する。 In the point measurement work, the displacement amount of each point 3, 3, ... Is measured from the relay point 4.
When measuring the displacement of the measuring point 3, first, the laser beam LB is irradiated in the horizontal direction from the measuring point laser aiming device 12 toward the measuring point staff 11, and the laser beam LB is irradiated by the camera 13. The station staff 11 is taken. When the displacement of another measuring point 3 is measured, the rotary base 16 is rotated.
The measurer measures the amount of displacement of the measuring point 3 associated with the construction of the tunnel 2 by reading the numerical value of the measuring staff 11 irradiated with the laser light LB from the image captured by the camera 13.
When the displacement of the relay point 4 is confirmed in the relay point measurement work, the displacement amount of the relay point 4 is reflected in the measurement result in the measurement point measurement work.

本実施形態では、測点用レーザー照準器１２、カメラ１３および回転台座１６を、図示せぬ制御手段を介して自動的に操作することで、各測点３の変位量を自動的に計測する。
すなわち、制御手段は、所定の時間毎に、回転台座１６、測点用レーザー照準器１２およびカメラ１３に信号を送信する。
回転台座１６が信号を受信すると、レーザー光ＬＢの照射方向が制御手段で指定された方向となるように回転する。
また、測点用レーザー照準器１２が信号を受信すると測点用レーザー照準器１２がレーザー光ＬＢを照射し、カメラ１３が信号を受信するとカメラ１３がレーザー光ＬＢの照射位置を撮影する。
なお、測点用レーザー照準器１２、カメラ１３および回転台座１６は、遠隔操作により手動で操作してもよい。 In the present embodiment, the amount of displacement of each measuring point 3 is automatically measured by automatically operating the laser sighting device for measuring point 12, the camera 13, and the rotary pedestal 16 via a control means (not shown). ..
That is, the control means transmits a signal to the rotary pedestal 16, the laser sighting device 12 for measuring points, and the camera 13 every predetermined time.
When the rotary base 16 receives the signal, the rotary base 16 rotates so that the irradiation direction of the laser beam LB becomes the direction designated by the control means.
Further, when the measuring point laser aiming device 12 receives the signal, the measuring point laser aiming device 12 irradiates the laser beam LB, and when the camera 13 receives the signal, the camera 13 photographs the irradiation position of the laser beam LB.
The laser sighting device 12 for measuring points, the camera 13, and the rotary base 16 may be manually operated by remote control.

本実施形態の変位測定システム１および変位測定方法によれば、次に示す効果を得ることができる。
各測点３の測点用標尺１１に向けてレーザー光ＬＢを照射し、このレーザー光ＬＢの到達点における測点用標尺１１の数値を読み取るのみで中継点４を基準とした測点３の変位量を測定することができる。そのため、簡易に地表面の沈下測量を行うことができる。また、基準点５から中継点４の変位量を測定するため、中継点４に変位が生じた場合であっても、各測点３および中継点４の変位量を簡易に測定することができる。
また、基準点５からは見通しが悪い測点３の沈下測量を簡易に行うことができる。
中継点４に設けられたカメラ１３により測点用標尺１１の数値を撮影するため、測点３から離れた位置においても測点３の変位量を確認することができる。
レーザー照準器１２，１５を利用することで、トータルステーション等の高価な測量機器を使用する従来の測定方法に比べて安価である。
測点３と中継点４との高低差が大きい場合であっても、測点用標尺１１の長さを調整することで、測点３の変位量の測定が可能となる。
遠隔操作または自動制御により各測点の変位を測定すれば、測量時に斜面において作業を行う必要がなく、安全に変位測量を行うことができる。また、電力の供給は測量時のみでよいため経済的である。 According to the displacement measuring system 1 and the displacement measuring method of this embodiment, the following effects can be obtained.
The laser beam LB is irradiated toward the measuring point staff 11 of each measuring point 3, and only the numerical value of the measuring point staff 11 at the arrival point of this laser light LB is read, and the measuring point 3 based on the relay point 4 is measured. The amount of displacement can be measured. Therefore, it is possible to easily measure the settlement of the ground surface. Further, since the displacement amount of the relay point 4 from the reference point 5 is measured, the displacement amount of each of the measurement points 3 and the relay point 4 can be easily measured even when the displacement of the relay point 4 occurs. ..
Further, it is possible to easily perform settlement measurement of the measurement point 3 where the visibility is bad from the reference point 5.
Since the camera 13 provided at the relay point 4 captures the numerical value of the measuring station staff 11, the displacement amount of the measuring point 3 can be confirmed even at a position away from the measuring point 3.
By using the laser sights 12 and 15, it is cheaper than the conventional measuring method using expensive surveying equipment such as a total station.
Even if the height difference between the measuring point 3 and the relay point 4 is large, the displacement amount of the measuring point 3 can be measured by adjusting the length of the measuring point staff 11.
If the displacement of each measurement point is measured by remote control or automatic control, it is not necessary to work on the slope at the time of surveying, and displacement measurement can be performed safely. In addition, the power supply is economical because it only needs to be measured.

以上、本発明の実施形態について説明したが本発明は、前述の実施形態に限られず、前記の各構成要素については、本発明の趣旨を逸脱しない範囲で、適宜変更が可能である。
例えば、本発明の変位測定方法および変位測定システムの利用目的は、トンネル掘削時の地表面の変位測量に限定されるものではなく、薬液注入時の地盤の隆起に対する変位測量、盛土の変位測量または法面の変位測量等、他の地盤変位測量に採用してもよい。
前記実施形態では、カメラにより標尺を撮影する場合について説明したが、カメラは必要に応じて使用すればよい。
前記実施形態では、中継点測定手段として、中継点用標尺１４と中継点用レーザー照準器１５を採用したが、中継点測定手段の構成は限定されるものではない。例えば、中継点４に設けられたプリズムターゲットと、基準点５に据え付けられたトランシットにより構成してもよい。かかる中継点測定手段によれば、基準点５に装置を常設しておく必要はなく、変位測量を行うことができるため、基準点の周囲のスペースを有効に利用することができる。 Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and the respective constituent elements can be appropriately modified without departing from the spirit of the present invention.
For example, the purpose of using the displacement measuring method and the displacement measuring system of the present invention is not limited to the displacement measurement of the ground surface during tunnel excavation, and the displacement measurement for the uplift of the ground at the time of chemical injection, the displacement measurement of the embankment or It may be used for other ground displacement surveys such as slope surface surveying.
In the above-described embodiment, the case of photographing the staff with the camera has been described, but the camera may be used as necessary.
In the above embodiment, the relay point staff 14 and the relay point laser sighting device 15 are used as the relay point measuring means, but the configuration of the relay point measuring means is not limited. For example, it may be configured by a prism target provided at the relay point 4 and a transit installed at the reference point 5. According to this relay point measuring means, it is not necessary to permanently install a device at the reference point 5 and displacement measurement can be performed, so that the space around the reference point can be effectively used.

１ 変位測定システム
１１ 測点用標尺（標尺）
１２ 測点用レーザー照準器（レーザー照準器）
１３ カメラ
１４ 中継点用標尺（第二の標尺）
１５ 中継点用レーザー照準器（第二のレーザー照準器）
１６ 回転台座
２ トンネル
３ 測点
４ 中継点
５ 基準点
ＬＢ レーザー光 1 Displacement measurement system 11 Station staff (base)
12 Laser sights for measuring points (laser sights)
13 Camera 14 Relay point staff (second staff)
15 Laser sight for relay point (second laser sight)
16 Rotation base 2 Tunnel 3 Measuring point 4 Relay point 5 Reference point LB Laser light

Claims (2)

地表面に設けられた測点の変位量を測定する変位測定方法であって、
不動点である基準点から中継点の変位量を測定する中継点測定作業と、
前記測点に設けられた標尺に向けて前記中継点から水平方向にレーザー光を照射するとともに、前記レーザー光が照射された前記標尺の数値を読み取る測点測定作業と、を備え、
前記中継点測定作業では、前記中継点に設けた第二の標尺に向けて前記基準点から照射方向が固定されたレーザー光を照射し、前記レーザー光の到達点における前記第二の標尺の数値を読み取り、
前記測点測定作業では、前記中継点において、レーザー光を照射するレーザー照準器が設置された回転台座上で前記レーザー照準器に並設されたカメラにより前記標尺の数値を撮影することを特徴とする、変位測定方法。 A displacement measuring method for measuring the amount of displacement of a measuring point provided on the ground surface,
Relay point measurement work to measure the displacement amount of the relay point from the reference point which is a fixed point,
While irradiating a laser beam in the horizontal direction from the relay point toward the staff provided at the measuring point, a measuring point measuring operation for reading the numerical value of the staff irradiated with the laser light,
In the relay point measurement work, the laser beam whose irradiation direction is fixed from the reference point is irradiated toward the second staff provided at the relay point, and the numerical value of the second staff at the arrival point of the laser light. the read-,
Wherein in the measuring point measuring operation, Oite to the relay point, the juxtaposed camera to the laser sight on a rotary pedestal laser sight is installed for irradiating a laser light to shoot a number of the staff Displacement measuring method. 測点に立設された標尺と、
中継点に設けられた回転台座上から前記標尺にレーザー光を照射するレーザー照準器と、
前記回転台座上において前記レーザー照準器と並設されて前記標尺を撮影するカメラと、
前記中継点に設けられた第二の標尺と、
不動点である基準点から前記第二の標尺に対して照射方向が固定されたレーザー光を照射する第二のレーザー照準器と、を備えていることを特徴とする変位測定システム。 A staff standing on the measuring point,
A laser sighting device for irradiating the staff with laser light from a rotating pedestal provided at a relay point,
A camera that is installed in parallel with the laser sighting device on the rotating pedestal to photograph the staff.
A second staff provided at the relay point,
A second laser sighting device for irradiating a laser beam whose irradiation direction is fixed to the second staff from a reference point which is a fixed point, and a displacement measuring system.
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