JPS5844963B2 - Ground improvement machine main body pipe slope detection device - Google Patents
Ground improvement machine main body pipe slope detection deviceInfo
- Publication number
- JPS5844963B2 JPS5844963B2 JP15148480A JP15148480A JPS5844963B2 JP S5844963 B2 JPS5844963 B2 JP S5844963B2 JP 15148480 A JP15148480 A JP 15148480A JP 15148480 A JP15148480 A JP 15148480A JP S5844963 B2 JPS5844963 B2 JP S5844963B2
- Authority
- JP
- Japan
- Prior art keywords
- main body
- body pipe
- detection device
- machine main
- improvement machine
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
- E02D3/126—Consolidating by placing solidifying or pore-filling substances in the soil and mixing by rotating blades
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Description
【発明の詳細な説明】
本発明は地盤改良機本体管傾斜検出装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a soil improvement machine main body pipe inclination detection device.
一般に層の厚い軟弱地盤上に各種土木構造物の構築のた
め、軟弱地盤中にセメントスラリー等を注入し、軟弱土
と攪拌混合して深層まで地盤改良することが行われてい
る。Generally, in order to construct various civil engineering structures on thick soft ground, cement slurry or the like is injected into the soft ground and stirred and mixed with the soft soil to improve the ground deep.
しかし深層の軟弱地盤中にセメントスラリー等を注入し
、攪拌混合するために貫入させる改良機本体管が例えば
５０扉程度の長尺なものとなり、このため改良機本体管
にタワミが生じ改良地点がずれるので工事管理上改良機
本体管下端の変位を正確に把握しなければならない。However, the main body pipe of the improved machine, which is penetrated to inject cement slurry etc. into the deep soft ground and mix it with stirring, has a length of about 50 doors, for example, and as a result, the main body pipe of the improved machine has sag, making it difficult to improve the improvement points. Because of this, it is necessary to accurately grasp the displacement of the lower end of the main body pipe of the improved machine for construction management purposes.
このため従来改良機本体管の変位検出装置が用い゛られ
ている。For this reason, a conventional improved machine body tube displacement detection device has been used.
然しなから、従来の変位検出装置では、本体管上端に傾
斜検出器１個を設け、傾斜検出器が検出した本体管上端
部の傾斜角をもとに本体管のたわみが零とみなして変位
を求めていた。However, in conventional displacement detection devices, one inclination detector is installed at the upper end of the main body tube, and based on the inclination angle of the upper end of the main body tube detected by the inclination detector, the deflection of the main body tube is assumed to be zero and the displacement is calculated. was looking for.
然しなから本体管は、地盤改良作業中は水中及び土中に
貫入されるので、土圧貫入抵抗、浮力、風波、潮力等の
外力に起因するたわみが生じ、工事施工管理上とのたわ
みによる変位量を無視できないことが判明してきた。However, since the main pipe is penetrated into water and soil during ground improvement work, it is subject to deflection due to external forces such as earth pressure penetration resistance, buoyancy, wind waves, and tidal force. It has become clear that the amount of displacement due to
本発明の目的は本体管上端に対する下端の変位を精度よ
く検出する装置を提供するものである。An object of the present invention is to provide a device that accurately detects the displacement of the lower end of a main body tube with respect to the upper end.
本発明装置は中空の地盤改良機本体管内に測定管をその
上下部が本体管の上端面及び下端面の中心点を支点とし
て支持されるようにして設け、測定管の任意個所に傾斜
計を１個設けたことを特徴とする。The device of the present invention is provided with a measuring tube in a hollow ground improvement machine main body pipe so that its upper and lower parts are supported using the center points of the upper and lower end surfaces of the main body pipe as fulcrums, and an inclinometer is installed at an arbitrary point on the measuring pipe. It is characterized by having one.
以下図面により本発明の一実施例を説明する。An embodiment of the present invention will be described below with reference to the drawings.
本発明においては第１図に示すように中空の密閉改良機
本木管１内に測定管２を挿通し、測定管２の上端を半球
状とし第２図のように下半部を球面とした球面支承３に
て担持し下端両側面を第３図に示す対接板より成る振れ
止め４により保持し、測定管２の頂部には公知の重錘式
二方向傾斜検出器５を１個固定して設ける。In the present invention, as shown in Fig. 1, a measuring tube 2 is inserted into a hollow main wood tube 1 of a sealed improvement machine, and the upper end of the measuring tube 2 is semispherical, and the lower half is spherical as shown in Fig. 2. It is supported by a spherical support 3, and both sides of the lower end are held by a steady rest 4 consisting of a contact plate shown in FIG. and set it up.
また、本体管１と測定管２間に任意比重の液体６を充満
し、封入する。Further, the space between the main body tube 1 and the measurement tube 2 is filled with a liquid 6 having an arbitrary specific gravity and sealed therein.
尚７は本体管１の空洞部、８は本体管１の上部に設けた
改良機モーター、９はその減速機、１０はこの減速機９
にラジアル軸受１１を介して連結した駆動軸、１２はこ
の駆動軸１ｏに設けた攪拌翼、１３は掘削翼を示す。In addition, 7 is the hollow part of the main body tube 1, 8 is the improved machine motor provided in the upper part of the main body tube 1, 9 is its reducer, and 10 is this reducer 9.
A drive shaft is connected to the drive shaft 1o via a radial bearing 11, 12 is a stirring blade provided on the drive shaft 1o, and 13 is a digging blade.
上記の構成によって本発明装置の作動を説明する。The operation of the device of the present invention will be explained using the above configuration.
一般に地盤改良作業中本体管１が第４図に示すように傾
斜し、たわみ、彎曲した場合は、従来の装置のように本
体管１の上端に傾斜検出器５を設けている構成ではその
検出角θ１は本体管上端部の傾斜角であり、これと本来
求むべき本体管上、下端面の各中心１４及び１５を結ぶ
直線の傾斜角θ２との間には第４図に示すようなθ２−
θ１の差が生ずる。In general, if the main body pipe 1 is tilted, bent, or curved as shown in Fig. 4 during soil improvement work, the inclination detector 5 installed at the upper end of the main body pipe 1 as in the conventional device can detect this. Angle θ1 is the inclination angle of the upper end of the main body tube, and between this and the inclination angle θ2 of the straight line connecting the centers 14 and 15 of the upper and lower end surfaces of the main body tube, as shown in FIG. −
A difference in θ1 occurs.
然しなから本発明装置では測定管２は本体管１の内部に
あるため、前述した土圧、貫入抵抗等の外力を直接受け
ず、また、測定管２の自重によるたわみは測定管２の寸
法、材質と液体６の比重を選択して測定管２自体に生ず
る浮力により除くようにすれば除去でき、測定管２は本
体管１の上、下端面中心１４及び１５を結ぶ直線上に保
持されることになる。However, in the device of the present invention, since the measuring tube 2 is located inside the main body tube 1, it is not directly subjected to external forces such as the earth pressure and penetration resistance mentioned above, and the deflection due to the measuring tube 2's own weight is due to the dimensions of the measuring tube 2. , can be removed by selecting the material and specific gravity of the liquid 6 to remove it by the buoyancy generated in the measuring tube 2 itself, and the measuring tube 2 is held on a straight line connecting the centers 14 and 15 of the upper and lower end surfaces of the main tube 1. That will happen.
その結果、測定管２に固定された傾斜検出器５の検出値
は本体管１の上、下端面中心１４及び１５を結ぶ直線の
鉛直に対する傾斜角を示し、これより本体管１の上端に
対する下端の変位を精度よく求めることができる。As a result, the detected value of the inclination detector 5 fixed to the measuring tube 2 indicates the inclination angle with respect to the vertical of the straight line connecting the upper and lower end surface centers 14 and 15 of the main body tube 1, and from this, the lower end with respect to the upper end of the main body tube 1 The displacement of can be determined with high accuracy.
第１図は本発明に係る地盤改良機本体管領斜角検出装置
の側面図、第２図は本体管上端の球面支承部説明図、第
３図は本体管下端の測定管振れ止め部の説明図、第４図
は本体管の傾斜と検出傾斜角の説明図である。
１・・・本体管、２・・・測定管、３・・・球面支承、
４・・・振れ止め、５・・・傾斜検出器、６・・・液体
、７・・・空洞部、８・・・モーター、９・・・減速機
、１０・・・駆動機、１１・・・ラジアル軸受、１２・
・・攪拌翼、１３・・・掘削翼、１４・・・本体管上端
面の中心、１５・・・本体管下端面の中心。Fig. 1 is a side view of the soil improvement machine main body pipe oblique angle detection device according to the present invention, Fig. 2 is an illustration of the spherical support at the upper end of the main pipe, and Fig. 3 is an illustration of the measurement pipe steady rest at the lower end of the main pipe. 4 are explanatory diagrams of the inclination of the main body tube and the detected inclination angle. 1... Main body tube, 2... Measuring tube, 3... Spherical bearing,
4... steady rest, 5... inclination detector, 6... liquid, 7... cavity, 8... motor, 9... speed reducer, 10... drive machine, 11...・・Radial bearing, 12・
... Stirring blade, 13... Excavation blade, 14... Center of the upper end surface of the main tube, 15... Center of the lower end surface of the main tube.
Claims (1)
本体管の上端面及び下端面の中心点を支点として支持さ
れるようにして設け、測定管の任意個所に傾斜計を１個
設けたことを特徴とする地盤改良機本体管傾斜検出装置
。 ２ 前記本体管の内面と測定管の外面との間に液体を封
入したことを特徴とする特許請求の範囲第１項記載の地
盤改良機本体管傾斜検出装置。[Scope of Claims] 1. A measuring tube is provided in a hollow ground improvement machine main body pipe so that its upper and lower parts are supported with the center points of the upper and lower end surfaces of the main body pipe as fulcrums, and the measuring pipe is provided at any location on the measuring pipe. A soil improvement machine main body pipe inclination detection device characterized by being equipped with one inclinometer. 2. The soil improvement machine main body pipe inclination detection device according to claim 1, characterized in that a liquid is sealed between the inner surface of the main body pipe and the outer surface of the measuring pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15148480A JPS5844963B2 (en) | 1980-10-30 | 1980-10-30 | Ground improvement machine main body pipe slope detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15148480A JPS5844963B2 (en) | 1980-10-30 | 1980-10-30 | Ground improvement machine main body pipe slope detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5776408A JPS5776408A (en) | 1982-05-13 |
| JPS5844963B2 true JPS5844963B2 (en) | 1983-10-06 |
Family
ID=15519505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15148480A Expired JPS5844963B2 (en) | 1980-10-30 | 1980-10-30 | Ground improvement machine main body pipe slope detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5844963B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62110111A (en) * | 1985-11-08 | 1987-05-21 | Takenaka Komuten Co Ltd | Measuring boring accuracy of soil machine |
| JPH0431347Y2 (en) * | 1985-11-21 | 1992-07-28 |
-
1980
- 1980-10-30 JP JP15148480A patent/JPS5844963B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5776408A (en) | 1982-05-13 |
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