JPH0788745B2 - Method of measuring bending of auger rod - Google Patents
Method of measuring bending of auger rodInfo
- Publication number
- JPH0788745B2 JPH0788745B2 JP1229655A JP22965589A JPH0788745B2 JP H0788745 B2 JPH0788745 B2 JP H0788745B2 JP 1229655 A JP1229655 A JP 1229655A JP 22965589 A JP22965589 A JP 22965589A JP H0788745 B2 JPH0788745 B2 JP H0788745B2
- Authority
- JP
- Japan
- Prior art keywords
- auger rod
- auger
- memory alloy
- ground
- shape memory
- 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.)
- Expired - Lifetime
Links
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、アースオーガで地盤を削孔する場合のオーガ
ロッドの曲がりひいては掘削孔の曲がりを測定する方法
に関する。Description: TECHNICAL FIELD The present invention relates to a method for measuring the bending of an auger rod and the bending of an excavation hole when drilling the ground with an earth auger.
従来、オーガロッドの曲がり具合を知るにはトランシッ
トでオーガロッド内を上方から覗き込む方法があるが、
これでは明かりのないロッド内を充分見渡せないことも
あり、さらに曲がりの程度が大きいとそれから先は見え
ず全体の曲がりの状態を判別出来ないこともある。Conventionally, there is a method of looking into the inside of the auger rod from above in order to know how the auger rod is bent.
In this case, it may not be possible to fully look inside the rod without light, and if the degree of bending is large, it may not be possible to see the future and it may not be possible to determine the state of the entire bending.
そこで第11図に示すように、傾斜計１を取付けてオーガ
ロッド２の曲がり具合を測定する方法も検討される。Then, as shown in FIG. 11, a method of mounting the inclinometer 1 and measuring the bending degree of the auger rod 2 is also examined.
周知のごとくオーガロッド２は連続した一本物ではな
く、複数を端部のフランジ継手2aで接合して長尺とする
ものである。従って、前記のごとく傾斜計１により傾斜
の詳細を知るためには各ロッド21,22,23…毎に傾斜計１
を設けなければならず、狭いロッド内に多数の傾斜計の
配線を確保するのは物理的に困難である。As is well known, the auger rod 2 is not a continuous one piece, but a plurality of auger rods 2 are joined by a flange joint 2a at the end to make the auger rod 2 long. Therefore, in order to know the details of the inclinometer 1 by the inclinometer 1 as described above, the inclinometer 1 for each rod 2 1 , 2 2 , 2 3 ...
Must be provided and it is physically difficult to secure the wiring of multiple inclinometers within a narrow rod.
さらに、傾斜計１での計測は各傾斜計１を設けた各ロッ
ド21,22,23…がフランジ継手2aでずれているという前提
によるもので、単位となるロッドの実際の傾斜を測って
いるとは言いがたいものである。Further, the measurement with the inclinometer 1 is based on the premise that the rods 2 1 , 2 2 , 2, 3 ... provided with the inclinometers 1 are displaced at the flange joint 2a, and the actual inclination of the rod as a unit is measured. It is hard to say that it is being measured.
本発明は前記従来例の不都合を解消し、簡単かつ確実に
正確な計測ができるオーガロッドの曲がり測定法を提供
することにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a method for measuring the bending of an auger rod, which eliminates the disadvantages of the conventional example and allows simple and reliable accurate measurement.
本発明は前記目的を達成するため、アースオーガで地盤
を削孔する場合において、地盤に挿入したオーガロッド
とその回転駆動装置とを切離し、地上に顕出する該オー
ガロッド上端から長尺な形状記憶合金を下端まで挿入し
てから形状を記憶させ、次いでこの形状記憶合金を地上
に回収し、その形状を再現して傾斜を連続的に測定する
ことを要旨とするものである。In order to achieve the above object, the present invention separates an auger rod inserted into the ground and a rotary drive device thereof when drilling the ground with an earth auger, and forms a long shape from the upper end of the auger rod exposed to the ground. The gist of the present invention is to insert the memory alloy to the lower end, memorize the shape, then collect the shape memory alloy on the ground, reproduce the shape, and continuously measure the inclination.
本発明によれば、地盤に挿入したオーガロッドの曲がり
状態は形状記憶合金に形状記憶される。そして、地上に
おいてこの形状記憶合金でその状態を再現して傾斜を連
続的に測定することができる。According to the present invention, the bent state of the auger rod inserted in the ground is memorized in the shape memory alloy. Then, the state can be reproduced with this shape memory alloy on the ground to continuously measure the inclination.
以下、図面について本発明の実施例を詳細に説明する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
第１図〜第５図は、本発明のオーガロッドの曲がり測定
法の１実施例を示す各工程の側面図である。1 to 5 are side views of the respective steps showing one embodiment of the method for measuring the bending of the auger rod of the present invention.
図中３はアースオーガのベースマシンであり、起伏自在
なリーダマスト４に沿って駆動装置５が昇降自在に設け
られ、この駆動装置５にオーガロッド２が接続される。Reference numeral 3 in the drawing is a base machine of an earth auger, and a drive device 5 is provided so as to be able to move up and down along an undulating leader mast 4, and the auger rod 2 is connected to the drive device 5.
なお、オーガロッド２の先端には掘削刃を有するオーガ
ヘッド６があり、また図示は省略するがこのオーガロッ
ド２は第11図に示すように複数を端部のフランジ継手で
接合して長尺とするものである。There is an auger head 6 having a digging blade at the tip of the auger rod 2, and although not shown, the auger rod 2 is made long by joining a plurality of end flange joints as shown in FIG. It is what
モータ、減速機等からなる駆動装置５によりオーガロッ
ド２を回転駆動して地盤に挿入し、掘削を行う。さら
に、掘削と同時にセメントミルク等を抽出し、撹拌する
こともある。The auger rod 2 is rotationally driven by the driving device 5 including a motor and a speed reducer to be inserted into the ground to excavate. Further, cement milk or the like may be extracted and stirred at the same time as excavation.
このように第１図に示すようにオーガロッド２を所定深
度まで地盤に挿入して掘削を行い、次いで第２図に示す
ようにオーガロッド２の上端と駆動装置５とを切離して
から該オーガロッド２の上端から長尺な形状記憶合金７
をロッド２の内部に挿入していく。Thus, as shown in FIG. 1, the auger rod 2 is inserted into the ground to a predetermined depth for excavation, and then the upper end of the auger rod 2 and the driving device 5 are separated as shown in FIG. Shape memory alloy 7 elongated from the upper end of the rod 2
Is inserted into the rod 2.
この形状記憶合金７としては、Ni−Ti系やCu系（Cu−Zn
−Al）の非鉄合金によるものの他にステンレス系（Fe−
Mn−Si）の鉄基形状記憶合金も利用できる。As the shape memory alloy 7, N i -T i-based and C u system (C u -Z n
-Al) non-ferrous alloy as well as stainless steel (F e −
Iron based shape memory alloy M n -S i) can also be used.
また、オーガロッド２は周知のごとく第６図、第７図に
示すように外管８と内管９との多重管構造であるが、該
形状記憶合金７の挿入するに際してはこのうち内管９に
断面三角形状のガイドパイプ10をセットしておき、一
方、前記形状記憶合金７はこのガイドパイプ10よりも僅
かに小径の断面三角形状のものとする。As is well known, the auger rod 2 has a multi-tube structure of an outer pipe 8 and an inner pipe 9 as shown in FIGS. 6 and 7, but when inserting the shape memory alloy 7, the inner pipe A guide pipe 10 having a triangular cross section is set in 9, while the shape memory alloy 7 has a triangular cross section having a diameter slightly smaller than that of the guide pipe 10.
さらに、形状記憶合金７の外面には滑性をを良くし、か
つ電気的絶縁を得るためにテフロン等の加工を施すこと
が望ましい。Further, it is desirable that the outer surface of the shape memory alloy 7 is processed with Teflon or the like in order to improve lubricity and to obtain electrical insulation.
なお、前記ガイドパイプ10の代わりに突条や溝により形
状記憶合金７の挿入のためのガイドを形成することも考
えられる。It is also conceivable to form a guide for inserting the shape memory alloy 7 by a ridge or a groove instead of the guide pipe 10.
このようにして形状記憶合金７をオーガロッド２の上端
から下端まで挿入したならば、この形状記憶合金７に電
源を接続して所定以上の電圧を印加すれば、全体が発熱
して高温状態となりその時の形状を記憶する。When the shape memory alloy 7 is inserted from the upper end to the lower end of the auger rod 2 in this way, if a power source is connected to the shape memory alloy 7 and a voltage of a predetermined value or more is applied, the entire body heats up and becomes a high temperature state. Memorize the shape at that time.
次いで、この形状記憶合金７をオーガロッド２から引き
抜いて第８図に示すように地上に回収して横たえ、第9a
図、第9b図に示すように再度通電してその形状を再現し
て傾斜を連続的に測定する。この第9a図、第9b図の場合
は形状記憶合金７を地上に横たえ、全体の変形から傾斜
を計るものであるが、第10a図〜第10d図に示すように形
状記憶合金７を（ａ）（ｂ）というように適宜切断して
部分ごとに分けてから形状を再現して傾斜を計ることも
可能である。Then, the shape memory alloy 7 is pulled out from the auger rod 2 and collected on the ground and laid down as shown in FIG.
As shown in FIG. 9 and FIG. 9b, the current is re-energized to reproduce its shape and the inclination is continuously measured. In the case of FIG. 9a and FIG. 9b, the shape memory alloy 7 is laid on the ground and the inclination is measured from the overall deformation, but as shown in FIGS. 10a to 10d, the shape memory alloy 7 (a ) (B), it is also possible to cut appropriately and divide into each part, then reproduce the shape and measure the inclination.
また、前記実施例は通電により形状記憶号合金７を変態
点である高温状態におく場合を示したが、バーナー等の
熱源により直接加熱で形状記憶を得るようにすることも
できる。Further, in the above embodiment, the shape memory alloy 7 is placed in a high temperature state which is a transformation point by energization, but the shape memory can be obtained by directly heating with a heat source such as a burner.
以上述べたように本発明のオーガロッドの曲がり測定法
は、地上においてその曲がり状態を再現してこれを連続
的に測定することにより、簡単かつ確実に正確な計測が
できるものである。As described above, the method for measuring the bending of the auger rod of the present invention enables simple and reliable accurate measurement by reproducing the bent state on the ground and continuously measuring the bent state.
第１図〜第５図は本発明のオーガロッドの曲がり測定法
の１実施例を示す各工程の測定図、第６図は要部の横断
平面図、第７図は同上縦断側面図、第８図は地上に回収
した形状記憶合金の側面図、第9a図、第9b図は測定の一
例を示す説明図、第10a図〜第10d図は測定の他例を示す
説明図、第11図は従来例を示す側面図である。 １……傾斜計 2,21,22,23……オーガロッド 2a……フランジ継手、３……ベースマシン ４……リーダマスト、５……駆動装置 ６……オーガヘッド、７……形状記憶合金 ８……外管、９……内管 10……ガイドパイプ1 to 5 are measurement diagrams of respective steps showing one embodiment of the method for measuring bending of an auger rod according to the present invention, FIG. 6 is a cross-sectional plan view of essential parts, FIG. 7 is a vertical side view of the same, FIG. 8 is a side view of the shape memory alloy collected on the ground, FIGS. 9a and 9b are explanatory views showing an example of measurement, and FIGS. 10a to 10d are explanatory views showing another example of measurement, and FIG. [Fig. 6] is a side view showing a conventional example. 1 …… Inclinometer 2,2 1 , 2, 2 , 2 3 …… Auger rod 2a …… Flange joint 3 …… Base machine 4 …… Leader mast 5 …… Driving device 6 …… Auger head 7 …… Shape memory alloy 8 …… Outer pipe, 9 …… Inner pipe 10 …… Guide pipe
Claims (1)
て、地盤に挿入したオーガロッドとその回転駆動装置と
を切離し、地上に顕出する該オーガロッド上端から長尺
な形状記憶合金を下端まで挿入してから形状を記憶さ
せ、次いでこの形状記憶合金を地上に回収し、その形状
を再現して傾斜を連続的に測定することを特徴としたオ
ーガロッドの曲がり測定法。1. When drilling the ground with an earth auger, the auger rod inserted into the ground and its rotary drive are separated from each other, and the long shape memory alloy is extended from the upper end of the auger rod exposed to the ground to the lower end. A method for measuring the bending of an auger rod, which is characterized by memorizing the shape after insertion, then collecting this shape memory alloy on the ground, reproducing the shape and continuously measuring the inclination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1229655A JPH0788745B2 (en) | 1989-09-04 | 1989-09-04 | Method of measuring bending of auger rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1229655A JPH0788745B2 (en) | 1989-09-04 | 1989-09-04 | Method of measuring bending of auger rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0393993A JPH0393993A (en) | 1991-04-18 |
| JPH0788745B2 true JPH0788745B2 (en) | 1995-09-27 |
Family
ID=16895608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1229655A Expired - Lifetime JPH0788745B2 (en) | 1989-09-04 | 1989-09-04 | Method of measuring bending of auger rod |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0788745B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2980845B2 (en) * | 1996-06-05 | 1999-11-22 | 株式会社山村鉄工所 | Measuring method and measuring device for landslide |
| JP4900080B2 (en) * | 2007-06-22 | 2012-03-21 | パナソニック株式会社 | Welding torch |
-
1989
- 1989-09-04 JP JP1229655A patent/JPH0788745B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0393993A (en) | 1991-04-18 |
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