JPS6070226A - Pile pit excavator - Google Patents
Pile pit excavatorInfo
- Publication number
- JPS6070226A JPS6070226A JP18131283A JP18131283A JPS6070226A JP S6070226 A JPS6070226 A JP S6070226A JP 18131283 A JP18131283 A JP 18131283A JP 18131283 A JP18131283 A JP 18131283A JP S6070226 A JPS6070226 A JP S6070226A
- Authority
- JP
- Japan
- Prior art keywords
- auger
- pressure water
- outer tubes
- pile pit
- turning
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
- E02D5/385—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with removal of the outer mould-pipes
Abstract
Description
【発明の詳細な説明】
砂層、シルトＭ等のように地盤が比較的均一である場合
は鋼矢板わ込みや、オーガーによる４設杭孔へのセメン
ト注入等によって基礎工壁を形成することができる。し
かし玄武岩転石層では鋼矢板は勿論オーガーが硬い玄武
岩転石に阻止され、鋼矢板地中打込みやオーガーによる
穿設はきわめて困難である。[Detailed description of the invention] When the ground is relatively uniform, such as a sand layer or silt M, it is possible to form a foundation wall by inserting steel sheet piles or injecting cement into four pile holes using an auger. can. However, in the basalt boulder layer, not only the steel sheet pile but also the auger are blocked by the hard basalt boulders, making it extremely difficult to drive the steel sheet pile into the ground or drill with an auger.
本発明は玄武岩転石層に基礎工用杭孔を迅速に穿設する
ことを目的とするものであって、内外管の下端に切削刃
を設け、内管の内部に下端に切削刃を有するオーガーを
設け、内管と外管との間に高圧水管を配殺し、同高圧水
管の下端に高圧水噴出ノズルを下向に設け、オーガーの
回動駆動装置および内外管の回動駆動装置を案内ガイド
に沿って昇降摺動自在に懸垂し、かつ上記脚装置による
オーガーと内外管との回動方向が互に反対方向である杭
孔掘削装置に関するものである。The purpose of the present invention is to quickly drill pile holes for foundation work in basalt boulder layers. A high-pressure water pipe is installed between the inner pipe and the outer pipe, and a high-pressure water jet nozzle is installed downward at the lower end of the high-pressure water pipe to guide the rotation drive device of the auger and the rotation drive device of the inner and outer tubes. The present invention relates to a pile hole drilling device which is suspended so as to be slidable up and down along a guide, and in which the auger and the inner and outer tubes are rotated in opposite directions by the leg device.
本発明を図面に示す実施例について説明すると１内管１
および外管２を間隔保持金具３を介して同心円に１体に
形成し、下端に切削刃４を設け、間隔部に第２図、第３
図に示すように複数の高圧水管５を等間隔に中心線と平
行に配設する。この高圧水管５の下端部は内外管１．２
の下端部に達し、先端に高圧水噴出ノズル６を下向に設
けるものである。内外管１．２の上端にはホールダ−７
を設け、同ホールダー７′ｔｔ回動駆動筒８に接続し、
同筒８の上端外側に設けた外歯車にピニオンを噛合し、
これ全減速電動機９の出力軸に接続して内外管１．２の
回動駆動装置１０を形成す−る。内管１の内部には下端
に切削刃１１を有するオーガー１２を摺動自在に嵌合し
、上端部を内管１の上端から上方に突出させ、減速電動
機１３の出力軸、１４にカップリング１５で接続してオ
ーガー１２の回動駆動装置１６を形成する。これらの駆
動装置１０．１６はそれぞれ直立案内ガイド１７の上端
滑車を迂回して垂下するワイヤロープ１８．１９に懸垂
され、同ガイド１７の軌条２０に両装置１０．１６の案
内金具２１．２１を摺動自在に係合し、上記ワイヤロー
プ１Ｂ、１９を巻機で昇降させることによって上記両装
置１０．１６を昇降させることができる。これらの両装
置１０．１・６の回動方向は互に反対であってそのため
オーガー１２と内外管１．２とは第２図矢印ａＳｂで示
すように互に反対方向に回動するものである。尚図中２
２で示すものは高圧水管５に接続する高圧水送水可撓管
、２３はワイヤロープの滑車である。案内ガイド１７は
クレーン車又はクレーン船の２個のブームの先端に中程
が支持され、下部は車台又は船台に支持されて直立する
。To explain the embodiment of the present invention shown in the drawings, 1 inner tube 1
The outer tube 2 is formed concentrically into one body through a spacing fitting 3, and a cutting blade 4 is provided at the lower end.
As shown in the figure, a plurality of high-pressure water pipes 5 are arranged at equal intervals and parallel to the center line. The lower end of this high pressure water pipe 5 is the inner and outer pipe 1.2.
The high-pressure water jet nozzle 6 is provided downward at the tip. At the upper ends of the inner and outer tubes 1.2 are holders 7.
and connect it to the holder 7'tt rotation drive cylinder 8,
A pinion is engaged with an external gear provided on the outside of the upper end of the cylinder 8,
This is connected to the output shaft of the total reduction motor 9 to form a rotation drive device 10 for the inner and outer tubes 1.2. An auger 12 having a cutting blade 11 at its lower end is slidably fitted inside the inner tube 1, and its upper end protrudes upward from the upper end of the inner tube 1, and is coupled to the output shaft of the reduction motor 13, 14. 15 to form a rotational drive device 16 for the auger 12. These drive devices 10.16 are each suspended from a wire rope 18.19 that hangs around the upper end pulley of a straight inner guide 17, and the guide fittings 21.21 of both devices 10.16 are attached to the rail 20 of the guide 17. Both devices 10, 16 can be raised and lowered by being slidably engaged and raising and lowering the wire ropes 1B, 19 using a winding machine. The directions of rotation of these two devices 10.1 and 6 are opposite to each other, and therefore the auger 12 and the inner and outer tubes 1.2 rotate in opposite directions as shown by arrows aSb in FIG. be. Furthermore, figure 2
2 is a flexible high-pressure water supply pipe connected to the high-pressure water pipe 5, and 23 is a wire rope pulley. The guide 17 is supported at its middle by the tips of two booms of a crane truck or a crane ship, and its lower part is supported by a chassis or a boat platform and stands upright.
従って案内ガイド１，７、を地面２４又は水面上に垂直
に保持し、ワイヤーロープ１８．１９によって上記駆動
装置１０．１６を同ガイド１７に沿って下降させ、内外
管１．２を回動させて切削刃４により地中に杭孔２５を
穿設することができ、内管１内の地盤はオーガー１２の
切削刃１】によって掘削してこれを地上に搬出すること
ができる。切削刃４．１１が玄武岩の転石２６（長崎類
平戸で圧縮強度１・７００〜１８００に一部）に当接す
ると下降が停止するから高圧水ポンプを動作して高圧水
管５ｔ−経てノズル６から高圧水（４００〜１０ｏ ｏ
Ｋｇａ ）を噴出させると上記転石２６は第１図、第
３図゛に示すように水力によって掘削されかつ内外管１
．２″の回転により円形に掘削されるから内外管１．２
は転石２６内を下降する。そして内管ｌ内のオーガー１
２の切削刃１１の回動によって内管１内に進入するコア
部は切削され切削屑はスクリュー１２′によって孔外に
搬出され、杭孔２５が転石２６を貫通して地中に形成さ
れる。根入れ深さまで開孔２５を掘削した後は内外管１
．２を上昇させ、オーガー１２の下端から開孔２５内に
セメントミルク等を注入充填しつつ上昇させコンクリー
ト柱を地中に形成することができる。転石２６に内外管
１．２の下端が当接する迄及び当接した時点では回転に
よるスピンによって内管１．２は方向を変位しようとす
るが、内管１内のオーガー１２が反対方向に回転して上
記スピンによる方向変位を相殺し、転石２６の内外を方
向変位なく下降掘削することができる。Therefore, the guides 1, 7 are held vertically on the ground 24 or the water surface, and the drive device 10.16 is lowered along the guides 17 by means of wire ropes 18, 19 to rotate the inner and outer tubes 1.2. A pile hole 25 can be bored in the ground using the cutting blade 4, and the ground inside the inner pipe 1 can be excavated by the cutting blade 1 of the auger 12 and carried to the ground. When the cutting blade 4.11 comes into contact with the basalt boulder 26 (some of which have a compressive strength of 1.700 to 1800 in Hirado, Nagasaki), the descent stops, and the high-pressure water pump is activated to feed the water from the nozzle 6 through the high-pressure water pipe 5t. High pressure water (400~10o
Kga) is ejected, the boulders 26 are excavated by hydraulic power as shown in Figs. 1 and 3, and the inner and outer pipes 1
．． The inner and outer tubes are excavated circularly by 2″ rotation, so the inner and outer tubes 1.2
descends within the rolling stones 26. and auger 1 in the inner tube l
The core portion entering the inner pipe 1 is cut by the rotation of the cutting blade 11 of No. 2, and the cutting waste is carried out of the hole by the screw 12', and a pile hole 25 is formed in the ground by penetrating the boulders 26. . After drilling the opening hole 25 to the depth of penetration, the inner and outer pipes 1
．． 2 is raised, and cement milk or the like is injected and filled into the aperture 25 from the lower end of the auger 12 while rising, thereby forming a concrete pillar underground. Until and when the lower ends of the inner and outer tubes 1.2 abut against the boulders 26, the inner tube 1.2 tries to displace its direction due to spin due to rotation, but the auger 12 inside the inner tube 1 rotates in the opposite direction. By doing so, the directional displacement due to the spin is offset, and it is possible to descend and excavate the inside and outside of the boulder 26 without directional displacement.
従来長崎類地方では基礎工用杭孔を穿設するため長ψ工
期と労力および莫大な費用を要し、或は発破等によった
ので人家の近くでは基礎工を施工し難い欠陥があった。In the past, in the Nagasaki region, drilling pile holes for foundation work required a long construction period, labor, and enormous costs, or blasting was used, making it difficult to construct foundations near human habitation. .
本発明は上述のように構成したのできわめて硬い大形の
転石２６を含有する転石層において迅速簡便に垂直杭孔
２５を穿設し得て地中に同杭孔２５によるコンクリート
柱を並設し、防水壁を容易に施工し得るものである。Since the present invention is constructed as described above, it is possible to quickly and easily drill vertical pile holes 25 in a rolling stone layer containing extremely hard large-sized boulders 26, and to install concrete pillars using the same pile holes 25 in the ground in parallel. , waterproof walls can be easily constructed.
第１図は本発明の杭孔掘削装置を示す側面図、第２図は
第１図Ａ−Ａ義による横断面図、第３図は第１図の一部
拡大図である。
１．２・・内外管、４．１１・・切削刃、】２・・オー
ガー、５・・高圧木管、６・・高圧水噴出ノズル、１０
．１６・・回動駆動装置、１７・・案内ガイド。
特許出願人
太 １） 義 裕FIG. 1 is a side view showing the pile hole drilling apparatus of the present invention, FIG. 2 is a cross-sectional view taken along line A--A in FIG. 1, and FIG. 3 is a partially enlarged view of FIG. 1. 1.2... Inner and outer tube, 4.11... Cutting blade, ]2... Auger, 5... High pressure wood pipe, 6... High pressure water jet nozzle, 10
．． 16...Rotation drive device, 17...Guidance guide. Patent applicant: 1) Yoshihiro
Claims (1)
の内部に下端に切削刃１】を有するオーガー１２を設け
、内管１と外管２との間に高圧水管５を配殺し、同高圧
水管５の下端に高圧水噴出ノズル６を下向に設け、オー
ガー】２の回動駆動装置］６および内外管】、２の回動
駆動装置１０を案内ガイド１７に沿って昇降摺動自在に
懸垂し、かつ上記脚装置］０．１６によるオーガー】２
と内外管１，２との回動方向が互に反対方向である杭孔
掘削装置。(1) Inner and outer tubes], Cutting blades 4.4 are installed at the lower ends of 2. Inner tube 1
An auger 12 having a cutting blade 1 at its lower end is installed inside the holder, a high-pressure water pipe 5 is arranged between the inner pipe 1 and the outer pipe 2, and a high-pressure water jet nozzle 6 is installed downward at the lower end of the high-pressure water pipe 5. The rotary drive device 10 of the auger]2 is suspended so as to be slidable up and down along the guiding guide 17, and the auger by the leg device]0.16 is provided. 2
A pile hole drilling device in which the rotating directions of the inner and outer pipes 1 and 2 are opposite to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18131283A JPS6070226A (en) | 1983-09-27 | 1983-09-27 | Pile pit excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18131283A JPS6070226A (en) | 1983-09-27 | 1983-09-27 | Pile pit excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6070226A true JPS6070226A (en) | 1985-04-22 |
| JPS6360198B2 JPS6360198B2 (en) | 1988-11-22 |
Family
ID=16098476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18131283A Granted JPS6070226A (en) | 1983-09-27 | 1983-09-27 | Pile pit excavator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6070226A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020037858A (en) * | 2018-08-30 | 2020-03-12 | Ｊｆｅスチール株式会社 | Construction method of steel pipe pile |
-
1983
- 1983-09-27 JP JP18131283A patent/JPS6070226A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020037858A (en) * | 2018-08-30 | 2020-03-12 | Ｊｆｅスチール株式会社 | Construction method of steel pipe pile |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6360198B2 (en) | 1988-11-22 |
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