JPS59112218A - Method and device for measuring hole wall - Google Patents
Method and device for measuring hole wallInfo
- Publication number
- JPS59112218A JPS59112218A JP57223303A JP22330382A JPS59112218A JP S59112218 A JPS59112218 A JP S59112218A JP 57223303 A JP57223303 A JP 57223303A JP 22330382 A JP22330382 A JP 22330382A JP S59112218 A JPS59112218 A JP S59112218A
- Authority
- JP
- Japan
- Prior art keywords
- hole
- arm
- inclination
- attached
- arms
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 10
- 238000005259 measurement Methods 0.000 abstract description 24
- 230000005484 gravity Effects 0.000 abstract description 3
- 230000003028 elevating effect Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000008267 milk Substances 0.000 description 3
- 210000004080 milk Anatomy 0.000 description 3
- 235000013336 milk Nutrition 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/08—Measuring diameters or related dimensions at the borehole
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1014—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well
- E21B17/1021—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well with articulated arms or arcuate springs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/02—Determining slope or direction
- E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、例えばコンクリート打設前における地中連続
壁用の孔の状態を地上から遠隔的に測定する方法及びそ
れに用いる装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for remotely measuring the condition of a hole for an underground continuous wall, for example, before concrete placement from the ground, and an apparatus used therefor.
一般に、連続した地中孔内の孔幅、即ち孔壁間距離を地
上にて遠隔測定するためには、超音波測距器が使用され
ている。この超音波測距器は、被測定孔内において孔壁
に向かって発射した超音波が孔壁で反割されて戻ってく
るまでの超音波伝播時間を測定することにより、被測定
孔内の超音波測距器設置位置での孔幅を測定するもので
ある。しかし、この様な超音波測距器は、通常、地上か
らワイヤーロープ等によって被測定孔内に吊下げられる
ため、ワイヤーロープの捩れや揺動を抑えることが難し
く、その結果、超音波測距器の向きや水平方向位置がず
れるため大きな測定誤差が生じがちであった。また、超
音波測距器の水平方向における位置が常に一定となると
は限らず、そのため孔幅は測定できても孔の傾斜を正確
に把握することは困難であった。更に、超音波を利用し
ているため、被測定孔内に泥水やコンクリートミルク等
が入っている場合には、それらの比重によっては孔壁と
区別できず、測定不可能となるという本質的な欠点もあ
った。Generally, an ultrasonic range finder is used to remotely measure the hole width in a continuous underground hole, that is, the distance between the hole walls on the ground. This ultrasonic range finder measures the propagation time of ultrasonic waves emitted toward the hole wall within the hole to be measured, until they are split by the hole wall and returned. This is to measure the hole width at the location where the ultrasonic range finder is installed. However, such ultrasonic range finders are usually suspended from the ground into the hole to be measured using wire ropes, etc., and it is difficult to suppress the twisting and swinging of the wire ropes. Large measurement errors tended to occur due to deviations in the orientation and horizontal position of the instrument. Further, the position of the ultrasonic range finder in the horizontal direction is not always constant, and therefore, even if the width of the hole can be measured, it is difficult to accurately determine the inclination of the hole. Furthermore, since ultrasonic waves are used, if there is muddy water, concrete milk, etc. in the hole to be measured, depending on their specific gravity, they cannot be distinguished from the hole wall, making measurement impossible. There were also drawbacks.
これに対して、従来技術として、傘状にアームが拡開し
、そのアームの傾斜角から孔径を測定する、いわゆる「
孔径キャリパ−」と称するものがある。しかしこの孔径
キャリパ−は、孔の径を測定するこζは出来ても、孔の
傾きを測定することはできず、従って、そのままでは地
中連続壁用の孔の形状測定に適用することは出来ない。On the other hand, as a conventional technique, an arm expands like an umbrella, and the hole diameter is measured from the inclination angle of the arm.
There is something called a "bore diameter caliper". However, although this hole diameter caliper can measure the diameter of the hole, it cannot measure the slope of the hole, so it cannot be applied as is to measuring the shape of holes for underground walls. Can not.
本発明は、上記のような従来技術の実情に鑑みなされた
もので、その目的は、被測定孔内に例えばある種の泥水
やコンクリトミルク等の超音波測距器では正確な孔壁測
定を行なえないような物質が入っていたとしても、それ
らの影響を全く受けず、地中連続壁用孔の孔幅やその傾
きを地上にて迅速且つ正確に遠隔測定することのできる
方法並びにそれに用いる装置を提供することにある。The present invention was made in view of the actual state of the prior art as described above, and its purpose is to prevent accurate hole wall measurements using an ultrasonic range finder when there is, for example, some kind of muddy water or concrete milk in the hole to be measured. A method that can quickly and accurately remotely measure the width and inclination of a diaphragm wall hole on the ground without being affected by the presence of substances that cannot be used, and its use therein. The goal is to provide equipment.
上記のような目的を達成するため案出された本発明は、
超音波を用いるのではなく、従来の孔径キャリパ−のよ
うに孔壁に接触しながら測定すること、を基本とし、な
おかつ孔の傾きをも測定することが出来るように工夫さ
れたものである。即ち、本発明の第１番目の発明は、ゾ
ンデ本体の上下位置に、それぞれアームが、その中央を
軸として回動自在に取付けられている測定装置を用い、
該測定装置をアームが閉じた状態で地中壁用孔内に降ろ
し、次いでアームを拡開りる如く付勢した状態のまま引
上げつつ、適宜間隔毎にアームの傾き及びゾンデ本体の
傾きを測定することを繰返し、それによって孔幅及び孔
の傾きを求め、孔の全体形状を測定可能としたことを特
徴とする孔壁測定方法であり、第２番目の発明は、その
方法を実施するのに好適な装置である。The present invention, devised to achieve the above objects,
Rather than using ultrasonic waves, this caliper measures the diameter of the hole while contacting the hole wall like a conventional hole diameter caliper, and has been devised so that it can also measure the inclination of the hole. That is, the first aspect of the present invention uses a measuring device in which arms are attached to upper and lower positions of a sonde body, respectively, so as to be rotatable about the center of the arms.
Lower the measuring device into the underground wall hole with the arm closed, then pull it up with the arm biased to expand, and measure the inclination of the arm and the inclination of the sonde body at appropriate intervals. The second invention is a hole wall measuring method characterized in that the hole width and the hole inclination are determined by repeating the above steps, thereby making it possible to measure the overall shape of the hole. This device is suitable for
以下、図面に基づき本発明について詳述する。Hereinafter, the present invention will be explained in detail based on the drawings.
第１図は本発呵に係る孔壁測定装置の一実施例を示す正
面図、第２図はその側面図である。この孔壁測定装置は
、枠状のゾンデ本体１をベースとし、それに様々な部材
が取付けられて構成されるもので、上端部のワイヤー取
付部２にワイヤー３を取付は地上から被測定孔内に吊下
げられる構成である。ゾンデ本体１の両側に位置する側
板４ａ、４ｂの上部にはそれぞれ上アーム５ａ、５ｂが
、また下部には下アーム５ａ。FIG. 1 is a front view showing an embodiment of the hole wall measuring device according to the present invention, and FIG. 2 is a side view thereof. This hole wall measuring device is constructed by having a frame-shaped sonde main body 1 as a base, and various parts are attached to it.A wire 3 is attached to a wire attachment part 2 at the upper end from the ground into the hole to be measured. It is configured so that it can be suspended from Side plates 4a and 4b located on both sides of the sonde body 1 have upper arms 5a and 5b at the top, respectively, and a lower arm 5a at the bottom.
６ｂがそれぞれ取付けられる。これら上アーム５ａ、５
ｂ並びに下アーム６ａ’、６ｂは、それぞれアームの中
央を軸として回動自在に取イ」けられており、各アーム
の両端にはタイヤ７が回転自在に取付けられている。ま
た各アームの回動輪（アーム軸）の端部に取付けられて
いるレバー３０とゾンデ本体１との間には、それぞれス
プリング８が取付けられる。これらのスプリング８は、
対応する各アームを、それぞれ第２図白抜き矢印で示す
ように、拡開させる方向にアーム軸を回転させる如く弾
撥力を付与する作用をなす。更に、これらのスプリング
８の端部（各レバー３０の端部）にはワイヤー９が取付
１ノられ、該ワイヤー９の他端部はワイヤー巻取軸１０
に巻付られる。ワイヤー巻取軸１０にはワイＡ７−巻取
プーリー１１が装着され、ゾンデ本体１に固定されてい
るアーム開閉用モータ１２を駆＃することによって巻取
り可能となっている。そして、ゾンデ本体１の一方の側
板４ａには傾斜測定用センサー１３が、また一方の下ア
ーム６ａには孔幅測定用センサー１４がそれぞれ装着さ
れている。これら傾斜測定用センサー１３及び孔幅測定
用センサー１４としては、それぞれ従来公知の傾斜セン
サーを用いることができ、例えば差動トランス方式のも
の、或いは振子型や回転式ポテンショメーター等任意の
型式のものであってよいが、当然のことながら出来るだ
け測定精度の良好なものを用いるのが望ましい。6b are attached respectively. These upper arms 5a, 5
b and lower arms 6a', 6b are each rotatably mounted around the center of the arm, and a tire 7 is rotatably attached to both ends of each arm. Further, a spring 8 is attached between the lever 30 attached to the end of the rotation wheel (arm shaft) of each arm and the sonde body 1, respectively. These springs 8 are
It acts to apply a resilient force to rotate the arm shaft in the direction of expanding each corresponding arm as shown by the white arrow in FIG. 2. Further, a wire 9 is attached to the end of each spring 8 (the end of each lever 30), and the other end of the wire 9 is connected to a wire winding shaft 10.
wrapped around. A wire A7-winding pulley 11 is attached to the wire winding shaft 10, and winding is possible by driving an arm opening/closing motor 12 fixed to the sonde body 1. An inclination measuring sensor 13 is attached to one side plate 4a of the sonde main body 1, and a hole width measuring sensor 14 is attached to one lower arm 6a. As the inclination measurement sensor 13 and hole width measurement sensor 14, conventionally known inclination sensors can be used, for example, a differential transformer type, a pendulum type, a rotary potentiometer, or any other type. Although it is acceptable, it is naturally desirable to use one with as good measurement accuracy as possible.
本測定装置の使用状態の一例を第３図に示し、測定点近
傍での状態の詳細をＭ４図に示す。被測定孔の孔幅や相
対的な傾きのみを把握すれば充分な場合は、地上には本
測定装置を吊下げ、吊上げるだめの巻上げ装置のみ設置
しておけばよいが、孔の傾斜に関する絶対的な情報を得
たい場合には第３図に示されているような基準器２０を
地上に設置しておく必要がある。この基準器２０には、
フレーム２１と、その上端に回転自在に取付けられてい
るシーブ２２と、フレーム２１の下方に取付いている巻
取ドラム２３と、該巻取ドラム２３の駆動機構、及び車
輪２４とターンバックル２５とからなるフレームの傾き
微ｗ４節機構が組込まれている。第３図においてフレー
ム２１の両側の面２１ａ 、 ２１ｂが基準プレートを
構成し、その傾斜角度と、測定装置が基準器２０に入っ
てきた状態での測定結果に基づき基準点（地表近傍の点
で、測定系列の基準となる点）の補正が行なわれる。基
準器２０が地表面に対して鉛直に設置されていれば、深
度○の点（地表面）についての補正は不要となるので、
前記傾き微調節機構を操作して極力鉛直に設置するのが
好ましい。しかし、傾いていても、演算によって補正は
行える。An example of the usage state of this measuring device is shown in FIG. 3, and details of the state near the measurement point are shown in FIG. M4. If it is sufficient to know only the hole width and relative inclination of the hole to be measured, it is sufficient to suspend this measuring device above the ground and install only a hoisting device to lift it up. If you want to obtain absolute information, it is necessary to install a reference device 20 on the ground as shown in FIG. This reference device 20 has
A frame 21, a sheave 22 rotatably attached to the upper end of the frame 21, a winding drum 23 attached below the frame 21, a drive mechanism for the winding drum 23, a wheel 24, and a turnbuckle 25. A slight frame tilt W4 joint mechanism is incorporated. In FIG. 3, surfaces 21a and 21b on both sides of the frame 21 constitute a reference plate, and a reference point (a point near the ground surface) is determined based on its inclination angle and the measurement result when the measuring device enters the reference device 20. , the reference point of the measurement series) is corrected. If the reference device 20 is installed perpendicular to the ground surface, there is no need to correct the point at depth ○ (ground surface).
It is preferable to operate the fine inclination adjustment mechanism to install it as vertically as possible. However, even if it is tilted, it can be corrected by calculation.
さて、第３図及び第４図に基づき、本発明による孔壁測
定方法について説明すると次の如くである。先ず、地上
においてアーム開閉用モータ１２によりワイヤー巻取軸
１０を回転駆動してワイヤー９を巻取り、それによって
スプリング８の弾撥力に抗して上アーム５ａ、５ｂ並び
に下アーム６ａ、６１〕を閉じる。その状態のまま地上
から被測定孔内に降ろし、孔底にてアーム開閉用モータ
１２による巻取力を開敢する。Now, based on FIGS. 3 and 4, the hole wall measuring method according to the present invention will be explained as follows. First, on the ground, the wire winding shaft 10 is rotationally driven by the arm opening/closing motor 12 to wind up the wire 9, and thereby the upper arms 5a, 5b and the lower arms 6a, 61 are moved against the elastic force of the spring 8. Close. In this state, it is lowered from the ground into the hole to be measured, and at the bottom of the hole, the winding force is applied by the arm opening/closing motor 12.
すると各上アーム５ａ、５ｂ並びに下アーム（３ａ 、
５ｂはスプリング８の弾撥力によって拡間し、各アーム
の両端部にそれぞれ取付（〕られているタイヤ７が孔壁
に接触することになる。Then, each upper arm 5a, 5b and lower arm (3a,
5b expands due to the elastic force of the spring 8, and the tires 7 attached to both ends of each arm come into contact with the hole wall.
この様な状態で、傾斜測定用センサー１３及び孔幅測定
用センサー１４によりゾンデ本体１の傾き並びに下アー
ム６ａの傾きを測定する。その後、地上の巻取ドラム２
３を回転駆動し、ワイヤー３を巻上げて測定装置を所定
距離上昇させ、その位置で再び傾斜測定用センナ−１３
によるゾンデ本体１の傾き及び孔幅測定用センサー１４
による下アーム６ａの傾きをそれぞれ測定する。この様
な操作を測定装置が地上に達するまで繰返すのである。In this state, the inclination of the sonde body 1 and the inclination of the lower arm 6a are measured by the inclination measuring sensor 13 and the hole width measuring sensor 14. After that, the winding drum 2 on the ground
3 is rotated, the wire 3 is wound up, the measuring device is raised a predetermined distance, and at that position, the inclination measuring sensor 13 is turned again.
Sensor 14 for measuring the inclination and hole width of the sonde body 1 by
The inclination of the lower arm 6a is measured accordingly. These operations are repeated until the measuring device reaches the ground.
なおこの実施例では基準器２０を用いているので、第３
図仮想線で示されているように、測定装置が基準器２０
内に納まるまで測定を繰返すことになる。Note that in this embodiment, since the reference device 20 is used, the third
As shown by the imaginary line in the figure, the measuring device is connected to the reference device 20.
The measurement will be repeated until it falls within the range.
ところで、第４図からも判るように、各アームはゾンデ
本体１の上下に取付けられており、しかもアームの中央
を軸としてゾンデ本体１に取付けられており、スプリン
グ８の弾撥力により先端のタイヤ７が孔壁に接触するよ
うになっているので、アームの開閉度合の如何にかかわ
らずアーム軸は常に孔の中央に位置することになる。従
って、上下のアーム軸、即ちゾンデ本体の中心位置は常
に孔の中央に存在する。上アーム５ａ、５ｂと下アーム
６ａ、６ｂのアーム軸間距離は、測定装置によって一義
的に定まっているので、傾斜測定用センサー１３によっ
てゾンデ本体１の傾斜角を測定すれば、孔の上アームの
アーム軸を通る鉛直線に対するゾンデ本体１の傾斜角に
よって、下アーム６ａのアーム軸の位置を求めることが
できる。また、下アーム６ａのアーム軸を通る鉛直線に
対する下アーム６ａの傾斜角により、下アーム６ａのア
ーム軸の位置に対する相対的なアームと孔壁との接触点
の位置を、深度方向成分並びに孔幅方向成分に分けて求
めることができる。By the way, as can be seen from FIG. 4, each arm is attached to the top and bottom of the sonde body 1, and moreover, each arm is attached to the sonde body 1 with the center of the arm as the axis, and the elastic force of the spring 8 allows the tip of the Since the tire 7 is in contact with the hole wall, the arm axis is always located at the center of the hole, regardless of the degree to which the arm is opened or closed. Therefore, the upper and lower arm axes, ie, the center position of the sonde body, are always located at the center of the hole. The distance between the arm axes of the upper arms 5a, 5b and the lower arms 6a, 6b is uniquely determined by the measuring device, so if the inclination angle of the sonde body 1 is measured by the inclination measurement sensor 13, the upper arm of the hole The position of the arm axis of the lower arm 6a can be determined by the inclination angle of the sonde body 1 with respect to the vertical line passing through the arm axis. In addition, depending on the inclination angle of the lower arm 6a with respect to the vertical line passing through the arm axis of the lower arm 6a, the position of the contact point between the arm and the hole wall relative to the position of the arm axis of the lower arm 6a can be determined by the depth direction component and the hole wall. It can be calculated separately into width direction components.
以上のことをまとめて記号を用いて説明すると次の如く
である。第４図において、下アーム６ａのタイヤ７と孔
壁３１との接触点をそれぞれＰ、Ｑとし、ゾンデ本体１
の傾斜角をα、下アーム６ａの傾斜角をβどし、上アー
ム５ａと下アーム６ａとのアーム軸間距離をし、アーム
軸中心とタイヤ７の中心との距離をＭ、タイヤ７の半径
をＲとしたとき、下アーム軸と点Ｐ（タイヤ７と孔壁３
１との接触点）のｘ軸方向の変位Ａは、
ＡＬＥＭＳｉロ β十Ｒ
下アーム軸に対する点Ｐのｙ方向の変位Ｂは、ＢζＭ
ＣＯ３α
また、上アーム軸に対重る下アーム軸の水平方向の変位
Ｃは、
Ｃ＝ Ｌ ｓｉｎα
である。第４図では孔が極端に傾斜しているので誤差が
生じているように見えるが、実際の測定は、はぼ鉛直の
方向に掘削された孔に対して行われるので、誤差はほと
んど入り込・まない。The above can be summarized and explained using symbols as follows. In FIG. 4, the points of contact between the tire 7 of the lower arm 6a and the hole wall 31 are designated P and Q, respectively, and the sonde body 1
The inclination angle of the lower arm 6a is α, the inclination angle of the lower arm 6a is β, the distance between the arm axes of the upper arm 5a and the lower arm 6a is the distance between the arm axis center and the center of the tire 7, and the distance between the arm axis center and the center of the tire 7 is M, and the inclination angle of the lower arm 6a is β. When the radius is R, the lower arm axis and point P (tire 7 and hole wall 3
The displacement A in the x-axis direction of the point of contact with the lower arm axis is BζM
CO3α Further, the horizontal displacement C of the lower arm axis relative to the upper arm axis is C=L sinα. In Figure 4, there appears to be an error because the hole is extremely inclined, but the actual measurement is performed on a hole drilled in a nearly vertical direction, so most of the error is due to the inclination.・No.
これらのデータを適宜間隔毎に測定し続けることによっ
て、孔の傾き並びに孔幅を求めることが出来るのである
。測定する深度ビッヂは、上アーム軸と下アーム軸どの
軸間距離に一致させるか、又はその整数分の−の長さに
設定することにより、異なる複数系列の測定ができ、か
つ測定の連続性を確保することが出来るので望ましいが
、深度ピッチは任意であってよい。また、第３図に示す
ような基準器２０を用いれば、その傾きは別の計器で予
め正確に測定で−ることが出来るので、それに基づき測
定結果の補正を行なえば、正確な孔の傾きを測定するこ
とが出来る。By continuing to measure these data at appropriate intervals, the inclination and width of the hole can be determined. The depth bit to be measured can be set to match the distance between the upper and lower arm axes, or to a negative integer of the distance between the two, allowing measurement of multiple different series and ensuring continuity of measurement. However, the depth pitch may be arbitrary. Furthermore, by using a reference device 20 as shown in Fig. 3, the inclination can be measured accurately in advance with another instrument, so if the measurement results are corrected based on that, the inclination of the hole can be determined accurately. can be measured.
以上本発明の好ましい実施例について詳述したが、本発
明はかかる構成のもののみに限定されるものでないこと
熱論である。本発明方法を実施するうえで、ゾンデ本体
の上下位置に、それぞれアームが、その中央を軸として
回動自在に取付りられていることは必須不可欠であるが
、それ以外の構造については取付り位置等をも含めて適
宜変更できる。この実施例において、孔幅測定用センサ
ー１４を下アーム６ａに取付けているが、これは孔底近
傍での測定値を求めたいためであって、特に孔底近傍の
測定値が必要でないような場合には、上アームの方に孔
幅測定用センサーを取付けてもよい。また、前述の如く
、必ずしも基準器２０を用いる必要がないが、絶対的な
意味での測定結果が必要な場合には、水実施例のように
基準器２０を用いる必要がある。Although the preferred embodiments of the present invention have been described in detail above, it is important to note that the present invention is not limited to only such configurations. In carrying out the method of the present invention, it is essential that arms are attached to the upper and lower positions of the sonde body so that they can rotate freely around the center of the arms, but other structures are not required. It can be changed as appropriate, including the position. In this embodiment, the hole width measurement sensor 14 is attached to the lower arm 6a, but this is because it is desired to obtain a measurement value near the hole bottom, and the sensor 14 for measuring the hole width is attached to the lower arm 6a. In some cases, a hole width measurement sensor may be attached to the upper arm. Further, as described above, it is not always necessary to use the reference device 20, but if measurement results in an absolute sense are required, it is necessary to use the reference device 20 as in the water embodiment.
本発明は、上記のように構成した孔壁測定方法及びそれ
に用いる測定装置であるから、超音波を利用していない
ので被測定孔内に泥水やコンクリートミルク等超音波方
式では計測不可能な比重をもつ物質が入っていても、そ
れに影響されていることなく正確に孔幅や孔の傾斜を測
定することができ、またアーム先端部が孔壁に接触する
方式であるので、測定装置が孔中の所定位置で直ちに静
止するので迅速且つ正確な測定が可能となるし、構造も
極めて簡単・なだめ保守や修理、或いは較正といった作
業が殆んど要らないなど極めて優れた効果を奏し得るも
のである。Since the present invention is a hole wall measuring method configured as described above and a measuring device used therein, it does not use ultrasonic waves, so there may be muddy water, concrete milk, etc. in the hole to be measured, which has a specific gravity that cannot be measured by the ultrasonic method. The hole width and hole inclination can be accurately measured without being affected by substances with Since it immediately stops at a predetermined position inside, it enables quick and accurate measurements, and it has an extremely simple structure and requires almost no work such as maintenance, repair, or calibration, and has extremely excellent effects. be.
第１図は本発明に係る孔壁測定装置の一実施例を示す正
面図、第２図はその側面図、第３図は本発明による孔壁
測定方法を示を説明図、第４図はその測定点近傍での状
態を示す説明図である。
１・・・ゾンデ本体、４ａ 、４ｂ・・・側板、５ａ。
５ ｂ・・・上アーム、６ａ、５ｂ・・・下アーム、７
・・・タイヤ、８・・・スプリング、１２・・・アーム
開閉用モータ、１３・・・傾斜測定用センサー、１４・
・・孔幅測定用センサー。
特許出願人 株式会社応用地質調査事務所代 理
人 尾 股 行 椎間
茂 児 破開
荒 木 友之助第１図
第３図FIG. 1 is a front view showing an embodiment of the hole wall measuring device according to the present invention, FIG. 2 is a side view thereof, FIG. 3 is an explanatory diagram showing the hole wall measuring method according to the present invention, and FIG. FIG. 3 is an explanatory diagram showing the state near the measurement point. 1...Sonde body, 4a, 4b...Side plate, 5a. 5 b...Upper arm, 6a, 5b...Lower arm, 7
... Tire, 8... Spring, 12... Arm opening/closing motor, 13... Inclination measurement sensor, 14...
...Sensor for measuring hole width. Patent Applicant: Ogyo Geological Survey Co., Ltd. Representative: Yuki Omata, Shiima
Moji rupture
Tomonosuke ArakiFigure 1Figure 3
Claims (1)
中央を軸として回動自在に取付けられている測定装置を
用い、該測定装置をアームが閉じた状態で地中壁用孔内
に降ろし、次いでアームを拡開する如く付勢した状態の
まま引上げつつ、適宜間隔毎にアームの傾き及びゾンデ
本体の傾きを測定することを欅返し、それによって孔幅
及び孔の傾きを求め、孔の全体形状を測定可能としたこ
とを特徴とする孔壁測定方法。 ２、枠状のゾンデ本体と、その両側板の上下位置にそれ
ぞれ中央を軸として回動自在に取付けられている４本の
アームと、各アームをそれぞれ拡開させる方向に弾撥力
を付与するスプリングと、前記ゾンデ本体に取付けられ
ている傾斜測定用センサーと、少なくとも一本のアーム
に取付けられている孔幅測定用センサーとを有する孔壁
測定装置。[Claims] 1. Using a measuring device in which arms are attached to the top and bottom of the sonde body so as to be rotatable around the center of the measuring device, the measuring device is attached to an underground wall with the arms closed. After lowering the arm into the hole, the arm is pulled up while being biased to expand, and the inclination of the arm and the inclination of the sonde body are measured at appropriate intervals, thereby determining the hole width and the inclination of the hole. A method for measuring a hole wall, which is characterized in that it is possible to measure the entire shape of a hole. 2. The frame-shaped sonde body and four arms are attached to the top and bottom of both side plates so that they can rotate freely around the center, and elastic force is applied to each arm in the direction of expansion. A hole wall measuring device comprising a spring, a tilt measuring sensor attached to the sonde body, and a hole width measuring sensor attached to at least one arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57223303A JPS59112218A (en) | 1982-12-20 | 1982-12-20 | Method and device for measuring hole wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57223303A JPS59112218A (en) | 1982-12-20 | 1982-12-20 | Method and device for measuring hole wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59112218A true JPS59112218A (en) | 1984-06-28 |
| JPH0319485B2 JPH0319485B2 (en) | 1991-03-15 |
Family
ID=16796028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57223303A Granted JPS59112218A (en) | 1982-12-20 | 1982-12-20 | Method and device for measuring hole wall |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59112218A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6175257A (en) * | 1984-09-19 | 1986-04-17 | Tokyo Gas Co Ltd | Detection of pipe such as buried gas supply pipe at inspecting points |
| JP2004045374A (en) * | 2002-05-17 | 2004-02-12 | Jfe Engineering Kk | Pipeline shape measuring apparatus and method |
| JP2006522926A (en) * | 2003-04-11 | 2006-10-05 | サンドビク タムロック オサケ ユキチュア | Drill hole measuring device and rock drilling device |
| JP2009538424A (en) * | 2006-05-25 | 2009-11-05 | ザ・ボーイング・カンパニー | Method and apparatus for hole diameter profile measurement |
| CN104833291A (en) * | 2014-11-12 | 2015-08-12 | 北汽福田汽车股份有限公司 | Vehicle minimum ground clearance measuring device |
-
1982
- 1982-12-20 JP JP57223303A patent/JPS59112218A/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6175257A (en) * | 1984-09-19 | 1986-04-17 | Tokyo Gas Co Ltd | Detection of pipe such as buried gas supply pipe at inspecting points |
| JPH055042B2 (en) * | 1984-09-19 | 1993-01-21 | Tokyo Gasu Kk | |
| JP2004045374A (en) * | 2002-05-17 | 2004-02-12 | Jfe Engineering Kk | Pipeline shape measuring apparatus and method |
| JP2006522926A (en) * | 2003-04-11 | 2006-10-05 | サンドビク タムロック オサケ ユキチュア | Drill hole measuring device and rock drilling device |
| US7654317B2 (en) | 2003-04-11 | 2010-02-02 | Sandvik Mining And Construction Oy | Drill hole measuring device and rock drilling unit |
| JP2009538424A (en) * | 2006-05-25 | 2009-11-05 | ザ・ボーイング・カンパニー | Method and apparatus for hole diameter profile measurement |
| CN104833291A (en) * | 2014-11-12 | 2015-08-12 | 北汽福田汽车股份有限公司 | Vehicle minimum ground clearance measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0319485B2 (en) | 1991-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210054732A1 (en) | Method and apparatus for investigating a borehole with a caliper | |
| JP2601372B2 (en) | Pile hole diameter measuring method and device for cast-in-place pile | |
| US6386043B1 (en) | Lateral motion sensing assembly | |
| JPS5924281A (en) | Method and device for detecting shock in hole | |
| KR102439258B1 (en) | Horizontal total installer device | |
| CN108489457A (en) | A kind of geological profile survey device | |
| JPS59112218A (en) | Method and device for measuring hole wall | |
| CN115808157A (en) | Foundation pile core drilling perpendicularity detection device applying laser and application method thereof | |
| JP2009002809A (en) | Hole wall measuring device | |
| US4214374A (en) | Method of and apparatus for measuring the deviation of the center axis of bore holes and trenches relative to the design vertical center axis thereof | |
| JP2001108592A (en) | Ground density measuring method | |
| JPH0886656A (en) | Inclination measuring instrument | |
| US1999201A (en) | Surveying method and apparatus | |
| JP7504837B2 (en) | Hole wall shape identification system | |
| US3372584A (en) | Offshore logging | |
| FR2319765A1 (en) | Probe for use in drilling boreholes - for measuring the goniometric parameters of the drilling tool | |
| JPH11304430A (en) | Ground displacement measuring device | |
| SU1434086A1 (en) | Device for monitoring direction of well bore | |
| KR20030086213A (en) | Apparatus for measuring gradient of slope | |
| KR102073985B1 (en) | System for detecting earthquake | |
| RU2055178C1 (en) | Method for control of wellbore deviation | |
| SU1768752A1 (en) | Method for establishing position of drilling ring working tool in hole-making | |
| JPS62265521A (en) | Measuring method for displacement of oblique hole | |
| CN117516489A (en) | Method and device for measuring shape of air cavity of salt cavern air storage by laser | |
| JPH08232573A (en) | Equipment and method for detcting place of excavation and underground excavation method |