JPS6024797Y2 - Positioning device in drilling rig - Google Patents
Positioning device in drilling rigInfo
- Publication number
- JPS6024797Y2 JPS6024797Y2 JP17328480U JP17328480U JPS6024797Y2 JP S6024797 Y2 JPS6024797 Y2 JP S6024797Y2 JP 17328480 U JP17328480 U JP 17328480U JP 17328480 U JP17328480 U JP 17328480U JP S6024797 Y2 JPS6024797 Y2 JP S6024797Y2
- Authority
- JP
- Japan
- Prior art keywords
- casing
- outer casing
- inner casing
- positioning device
- guide means
- 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
Description
【考案の詳細な説明】
本考案は掘削装置における位置決め装置に関するもので
ある。[Detailed Description of the Invention] The present invention relates to a positioning device for an excavation rig.
杭が負星する水平応力が最も集中する部分は杭頭部であ
り、この頭部のネバリを出すために、杭の頭部を拡大す
ることが考えられる。The part of the pile where the horizontal stress that causes a negative star is most concentrated is the pile head, and in order to make the head sticky, it is possible to enlarge the head of the pile.
本考案の目的は、拡頭杭を施工する際、予め掘削された
拡頭杭孔の底部中心に小径の軸杭孔部を作業性よく正確
に掘削することのできる掘削装置における位置決め装置
を提供することにある。An object of the present invention is to provide a positioning device for an excavator that can accurately excavate a small-diameter shaft pile hole at the center of the bottom of a pre-drilled expanded pile hole with good workability when constructing an expanded pile. It is in.
以下本考案の実施例を図面に基づいて説明する。Embodiments of the present invention will be described below based on the drawings.
第1,2図において、地盤Wにたとえばパケット(図示
せず。In FIGS. 1 and 2, for example, a packet (not shown) is placed on the ground W.
)により拡頭杭孔の乳頭部1が掘削しである。), the papilla 1 of the expanded pile hole is excavated.
この乳頭部1の内壁に密接して外ケーシング2が落し込
まれて嵌挿し、外ケーシングの上端開口部2aは地盤W
の地表よりわずかに突き出ている。The outer casing 2 is dropped and fitted in close contact with the inner wall of the teat 1, and the upper end opening 2a of the outer casing is connected to the ground W.
protrudes slightly from the ground surface.
外ゲージング2内の軸心部には、小径の内ケーシング3
が外ケーシング2と間隙を隔てて挿置している。A small-diameter inner casing 3 is located at the shaft center inside the outer gauging 2.
is inserted with a gap between it and the outer casing 2.
内ケーシング3はその外壁面に案内手段が取り付けであ
る。The inner casing 3 has a guide means attached to its outer wall surface.
この案内手段はこの例では第2図に示すように内ケーシ
ング3の外壁面に3本の腕4.・・・が等間隔で3段に
突設してあり、各駒の先端に、ローラ5.・・・が外ケ
ーシング2の内壁面を転勤可能に取り付けである。In this example, this guide means has three arms 4. ... are protruded in three stages at equal intervals, and at the tip of each piece is a roller 5. ... is attached to the inner wall surface of the outer casing 2 so as to be removable.
各駒4.・・・により内ケーシング3の軸心が外ケーシ
ング2の軸心に一致し、外ケーシングの軸心部に内ケー
シングを位置決めすることができる。Each piece 4. ... allows the axial center of the inner casing 3 to coincide with the axial center of the outer casing 2, and the inner casing can be positioned at the axial center of the outer casing.
また内ケーシング3の上端開口縁部には外ケーシング2
の上端部を覆うための蓋板6を設けてあり、この蓋板6
の外周部に設けた係止片6aが外ケーシングの上端開口
縁部に係合して上端開口部2aより確実に閉止している
。In addition, the outer casing 2 is attached to the upper opening edge of the inner casing 3.
A cover plate 6 is provided to cover the upper end.
A locking piece 6a provided on the outer periphery of the outer casing engages with the upper opening edge of the outer casing to more reliably close the upper opening 2a.
蓋板6の中心部には内ケーシング3の上端開口部3aと
なっている。The center of the lid plate 6 is an upper end opening 3a of the inner casing 3.
次に本考案の位置決め装置の使用方法を主に第3〜6図
を参照して説明する。Next, a method of using the positioning device of the present invention will be explained with reference mainly to FIGS. 3 to 6.
まず地盤Wに拡頭杭孔としてパケット等により所定深さ
の拡径の孔頭部1を掘削し、この頭部に外ケーシング2
を落し込んで嵌挿する(第3図)。First, a hole head 1 with an enlarged diameter of a predetermined depth is excavated as an enlarged pile hole in the ground W using a packet or the like, and an outer casing 2 is inserted into this head.
(Figure 3).
続いて地上にて内ケーシング3の軸心を外ケーシング2
の軸心に合わせてから外ケーシング2内に内ケーシング
を挿入すると、外ケーシングの内壁面をローラ5.・・
・が転動し、外ケーシングの軸心部に内ケーシング3が
次第に挿入しく第4図)やがて内ケーシングは第1図に
示すように内ケーシング内に挿置され、外ケーシング2
の上端開口部2aを蓋板6で閉止する。Next, on the ground, align the axis of the inner casing 3 with the outer casing 2.
When the inner casing is inserted into the outer casing 2 after being aligned with the axis of the roller 5.・・・
The inner casing 3 is gradually inserted into the axial center of the outer casing (Fig. 4), and the inner casing is eventually inserted into the inner casing as shown in Fig. 1, and the outer casing 2
The upper end opening 2a is closed with a lid plate 6.
その後、第5図に示すように内ケーシング3の上端開口
部3aよりたとえばタワー(図示せず。Thereafter, as shown in FIG. 5, for example, a tower (not shown) is opened from the upper end opening 3a of the inner casing 3.
)に吊下げられているアースドリル7を挿入して拡頭杭
孔1の底部にまで引きおろして後、アースドリル7を回
転駆動して小径の軸孔部1aを掘削する。) is inserted and pulled down to the bottom of the expanded pile hole 1, and then the earth drill 7 is driven to rotate to drill a small diameter shaft hole 1a.
このアースドリル7は所定量掘削するとアースドリルを
引き上げて排土する操作をくり返し、排土は蓋板6にり
乳頭部1内への落下を防止している。When this earth drill 7 has excavated a predetermined amount, the operation of lifting the earth drill and removing soil is repeated, and the discharged soil is prevented from falling into the teat 1 by a cover plate 6.
そして軸孔部1aを所定深度掘削し終ると、第6図に示
すように杭孔1a内に円筒状に配筋して鉄筋かご8を挿
入し、そして内ケーシング3を引き上げ、その後さらに
乳頭部1に鉄筋かご9を挿入し、そしてコンクリートを
流し込んで杭を施工する。When the shaft hole 1a has been excavated to a predetermined depth, the reinforcement cage 8 is inserted into the pile hole 1a in a cylindrical shape as shown in FIG. 6, and the inner casing 3 is pulled up. A reinforcing bar cage 9 is inserted into 1, concrete is poured, and the pile is constructed.
なお内ケーシング3の案内手段は上側のものに限定する
ものでなく、たとえば腕4の先端が外ケーシング2の内
壁面に当接するものであっても同様の作用を得ることが
できるが、腕4の先端にローラを設けたものは、外ケー
シング2への出し入れが円滑にできる利点がある。Note that the guide means of the inner casing 3 is not limited to the upper one; for example, the same effect can be obtained even if the tip of the arm 4 comes into contact with the inner wall surface of the outer casing 2; The one having a roller at the tip has the advantage that it can be taken in and out of the outer casing 2 smoothly.
以上のように本考案によれば、位置決め装置を用いるこ
とで、拡頭杭孔の乳頭部の底部中心に小径の軸孔部を作
業性よく正確に芯出しして掘削することができ実用上の
効果は甚大である。As described above, according to the present invention, by using a positioning device, it is possible to accurately center and drill a small diameter shaft hole at the center of the bottom of the papilla of an expanded pile hole with good workability. The effect is enormous.
図面は本考案の一実施例を示すもので、第1図は本考案
の位置決め装置の使用状態を示す断面図、第2図は第1
図の■−■線断面図、第3〜第6図は本考案装置を用い
て杭を施工する各工程を示す説明図である。
1・・・・・・拡頭杭孔の乳頭部、2・・・・・・外ケ
ーシング、2a・・・・・・上端開口部、3・・・・・
・内ケーシング、3a・・・・・・上端開口部、4・・
・・・・腕、5・・・・・・ローラ、6・・・・・・蓋
板。The drawings show one embodiment of the present invention, and FIG. 1 is a cross-sectional view showing the positioning device of the present invention in use, and FIG.
The cross-sectional view taken along the line ■--■ in the figure and FIGS. 3 to 6 are explanatory diagrams showing each process of constructing a pile using the device of the present invention. 1... Papilla of expanded pile hole, 2... Outer casing, 2a... Upper end opening, 3...
・Inner casing, 3a...Top opening, 4...
... Arm, 5 ... Roller, 6 ... Lid plate.
Claims (2)
である外ケーシングと、 この外ケーシング内に間隙を隔てて挿置可能である内ケ
ーシングと、 この内ケーシングの外壁面に取り付けかつ先端部が外ケ
ーシングの内壁に当接して上記内ケーシングを外ケーシ
ング軸心部に位置決めするための案内手段と、 上記内ケーシングの上端開口縁部に設け、上記外ケーシ
ングの上端開口部を閉止可能である蓋板と、 を具備していることを特徴とする掘削装置における位置
決め装置。(1) An outer casing that can be inserted into the inner wall of the papilla of a pre-drilled expanded pile hole, an inner casing that can be inserted into the outer casing with a gap, and an inner casing that is attached to the outer wall surface of the inner casing. and a guide means for positioning the inner casing at the outer casing axis by having its tip abut against the inner wall of the outer casing, and a guide means provided at the upper opening edge of the inner casing to close the upper opening of the outer casing. A positioning device in an excavation rig, characterized in that the positioning device is equipped with a cover plate that can be used;
段は一端を内ケーシングに取り付は先端に上記外ケーシ
ング内壁を転勤するローラを設けた腕であることを特徴
とする掘削装置における位置決め装置。(2) Utility model registration Scope of claim 1, wherein the guide means is an arm whose one end is attached to the inner casing and whose tip is provided with a roller that transfers the inner wall of the outer casing. Device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17328480U JPS6024797Y2 (en) | 1980-12-04 | 1980-12-04 | Positioning device in drilling rig |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17328480U JPS6024797Y2 (en) | 1980-12-04 | 1980-12-04 | Positioning device in drilling rig |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5796281U JPS5796281U (en) | 1982-06-14 |
JPS6024797Y2 true JPS6024797Y2 (en) | 1985-07-24 |
Family
ID=29531515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17328480U Expired JPS6024797Y2 (en) | 1980-12-04 | 1980-12-04 | Positioning device in drilling rig |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6024797Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5612505B2 (en) * | 2011-02-23 | 2014-10-22 | 千代田化工建設株式会社 | Heat collection tube construction method |
-
1980
- 1980-12-04 JP JP17328480U patent/JPS6024797Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5796281U (en) | 1982-06-14 |
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