JPH0261220A - Underground continuous wall constructing excavator - Google Patents
Underground continuous wall constructing excavatorInfo
- Publication number
- JPH0261220A JPH0261220A JP21434188A JP21434188A JPH0261220A JP H0261220 A JPH0261220 A JP H0261220A JP 21434188 A JP21434188 A JP 21434188A JP 21434188 A JP21434188 A JP 21434188A JP H0261220 A JPH0261220 A JP H0261220A
- Authority
- JP
- Japan
- Prior art keywords
- air
- drilling
- ground
- compressed air
- supply pipe
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 claims description 33
- 238000009412 basement excavation Methods 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は柱列式の地中連続壁を造成するための削孔を
行う、２軸の地中連続壁造成用掘削装置に関するもので
ある。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a two-axis excavation device for constructing a column-type underground continuous wall, which drills holes for creating a column-type underground continuous wall. .
２軸掘削装置による削孔は２本のロフト間に１本分の柱
列孔を残し、数回に分けて実施されるが、この数度に亘
って行われる施工にあたっては、最初の削孔時に２本の
ロフト間の地盤を前もって緩めておくことができれば次
回の削孔が容易となり、施工の能率を上げることができ
る。Drilling with a two-shaft drilling equipment is carried out in several steps, leaving one column hole between two lofts, but when drilling is carried out over several times, it is important to If the ground between the two lofts can be loosened in advance, it will be easier to drill the next hole, increasing construction efficiency.
この発明はこうした柱列式連続壁用の削孔の施工要領に
着目してなされたもので、上記の要求を満足する掘削装
置を新たに提案しようとするものである。The present invention has been made by focusing on the procedure for drilling holes for column-type continuous walls, and aims to propose a new excavation device that satisfies the above-mentioned requirements.
本発明では並列する掘削ロッドが互いに間隔をおいて連
結された２軸掘削装置の中間部位置に、先端にエアー噴
射ノズルを有するエアー供給パイプを取り付けることに
より２本の掘削ロッドによる削孔と同時に、その間の地
盤を緩めることを可能とし、施工の能率化を図る。In the present invention, by attaching an air supply pipe having an air injection nozzle at the tip to the intermediate position of a two-shaft drilling device in which parallel drilling rods are connected at intervals, drilling by two drilling rods is simultaneously performed. , making it possible to loosen the ground between them and improve the efficiency of construction.
２軸掘削装置は２本の掘削ロッドを間隔保持金物で連結
したもので、エアー供給パイプは両掘削ロッドに並列し
、澗隔保持金物に保持された状態に取り付けられる。A two-shaft drilling device has two drilling rods connected by a spacing metal fitting, and an air supply pipe is attached to both drilling rods in parallel and held by the spacing metal fitting.
エアー供給パイプからは圧縮空気がエアー噴射ノズルへ
送り込まれ、このエアー噴射ノズルから噴射される圧縮
空気によって地盤は粉砕、攪拌される。Compressed air is sent from the air supply pipe to the air injection nozzle, and the ground is crushed and stirred by the compressed air injected from the air injection nozzle.
以下本発明を一実施例を示す図面に基づいて説明する。 The present invention will be explained below based on the drawings showing one embodiment.
この発明の掘削装置Ａは柱列式地中連続壁を造成するた
めの、２本の掘削ロッド１．１からなる２軸掘削装置で
あり、削孔時に掘削ロッド１．１間の地盤を次回の掘削
のために緩めておくものである。Drilling equipment A of the present invention is a two-shaft drilling equipment consisting of two drilling rods 1.1 for creating a column type underground continuous wall, and when drilling a hole, the ground between the drilling rods 1.1 is It is to be loosened for excavation.
掘削装置Ａは第１図、第２図に示すように２本の、互い
に間隔をおいて並列する掘削ロッド１．１を、軸方向に
所要間隔をおいて配置される間隔保持金物２で挟み込み
、ボルト３を締め付けて把持し、連結したもので、その
中間部に第２図−Ｉ、■に示すように地盤を緩めるため
の、圧縮空気を送り込むエアー供給パイプ４が取り付け
られたものである。As shown in FIGS. 1 and 2, the drilling equipment A has two drilling rods 1.1 arranged in parallel at a distance from each other, which are sandwiched between spacing metal fittings 2 arranged at a required distance in the axial direction. , which are connected by tightening and gripping bolts 3, and an air supply pipe 4 for feeding compressed air to loosen the ground is attached to the middle part as shown in Figure 2-I, ■. .
エアー供給パイプ４は図示するように掘削ロッド１と同
様に間隔保持金物２に把持されて掘削ロッド１に並列し
て取り付けられる。■はエアー供給パイプ４が１本の場
合、■は２本の場合である。As shown in the figure, the air supply pipe 4 is held in the same manner as the excavation rod 1 by the spacer holding hardware 2 and is attached in parallel to the excavation rod 1. (2) is the case where there is one air supply pipe 4, and (2) is the case where there are two air supply pipes.
エアー供給パイプ４の先端にはエアー供給パイプ４より
送り込まれる圧縮空気を地盤に噴射するエアー噴射ノズ
ル４ａが設けられており、このエアー噴射ノズル４ａは
掘削ロッド１先端のピッ）ｌａ位置に位置している。An air injection nozzle 4a is provided at the tip of the air supply pipe 4 to inject compressed air sent from the air supply pipe 4 into the ground. ing.
第２図において、掘削ワンド１．１外周の２点鎖線の円
は掘削ロッド１の撹拌翼１ｂによる掘削土とセメントミ
ルク等の注入液との攪拌領域を、中間部の２点鎖線はエ
アー噴射ノズル４ａによる地盤の粉砕、攪拌の領域をそ
れぞれ示している。In Fig. 2, the two-dot chain line circle on the outer periphery of the excavation wand 1.1 indicates the area where the excavated soil and the injected liquid such as cement milk are stirred by the stirring blade 1b of the excavation rod 1, and the two-dot chain line in the middle indicates the area where the injected liquid such as cement milk is stirred. The areas where the ground is crushed and stirred by the nozzle 4a are shown, respectively.
第３図−■〜■は本掘削装置Ａによる削孔の施工要領を
示したものである。上段は１回目の削孔、中段は２回目
の削孔であり、下段は連続壁造成の様子を示している。FIG. 3 -■ to ■ show the procedure for drilling a hole using the drilling device A of the present invention. The upper row shows the first hole drilling, the middle row shows the second hole drilling, and the lower row shows the continuous wall construction.
いずれの場合も１回目の削孔時の、並列する孔の中間部
の地盤がエアー噴射ノズル４ａによって緩められる。In either case, during the first drilling, the ground in the middle of the parallel holes is loosened by the air injection nozzle 4a.
この発明は以上の通りであり、最初の削孔の際に次回の
削孔のために掘削ロッド間の地盤を予め緩めておくもの
であるため次回の削孔作業が容易となり、施工の能率を
上げることが可能である。This invention is as described above, and since the ground between the drilling rods is loosened in advance during the first drilling for the next drilling, the next drilling work becomes easier and the efficiency of construction is improved. It is possible to raise it.
第１図は本発明の製作例を示した立面図、第２図−Ｉ、
ｎはその連結部の断面図、第３図−Ｉ〜■は本発明
による施工要領を示した手順図である。
Ａ・・・掘削装置、１・・・掘削ロッド、１ａ・・・ビ
ット、１ｂ・・・攪拌翼、２・・・間隔保持金物、３・
・・ボルト、４・・・エアー供給パイプ、４ａ・・・エ
アー噴射ノズル。
第２図
■Fig. 1 is an elevational view showing a manufacturing example of the present invention, Fig. 2-I,
3.n is a sectional view of the connecting portion, and FIGS. 3-I to 3-3 are procedural diagrams showing the construction procedure according to the present invention. A... Drilling equipment, 1... Drilling rod, 1a... Bit, 1b... Stirring blade, 2... Spacing holding hardware, 3...
...Bolt, 4...Air supply pipe, 4a...Air injection nozzle. Figure 2 ■
Claims (1)
持金物で連結された２軸掘削装置において、先端に、両
掘削ロッドの中間部の地盤に圧縮空気を噴射し、これを
粉砕するエアー噴射ノズルを有し、このエアー噴射ノズ
ルに圧縮空気を送り込むエアー供給パイプが両掘削ロッ
ドの中間部位置にこれらに並列して間隔保持金物に保持
された状態に取り付けてあることを特徴とする地中連続
壁造成用掘削装置。(1) In a two-shaft drilling device in which parallel drilling rods are connected at intervals with spacing metal fittings, air injection is used to inject compressed air into the ground between the two drilling rods at the tip to crush it. An underground machine having a nozzle, and an air supply pipe for feeding compressed air to the air injection nozzle, which is attached to an intermediate position between both drilling rods, in parallel with them, and held by a spacing metal fitting. Excavation equipment for continuous wall construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21434188A JPH0261220A (en) | 1988-08-29 | 1988-08-29 | Underground continuous wall constructing excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21434188A JPH0261220A (en) | 1988-08-29 | 1988-08-29 | Underground continuous wall constructing excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0261220A true JPH0261220A (en) | 1990-03-01 |
Family
ID=16654160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21434188A Pending JPH0261220A (en) | 1988-08-29 | 1988-08-29 | Underground continuous wall constructing excavator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0261220A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018204171A (en) * | 2017-05-30 | 2018-12-27 | ライト工業株式会社 | Ground agitation apparatus |
-
1988
- 1988-08-29 JP JP21434188A patent/JPH0261220A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018204171A (en) * | 2017-05-30 | 2018-12-27 | ライト工業株式会社 | Ground agitation apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH09217594A (en) | Timbering method for tunnel | |
| JPH0261220A (en) | Underground continuous wall constructing excavator | |
| US20170167099A1 (en) | Deep soil mixing equipment and method | |
| JPH0274792A (en) | Tunnel construction method with no blasting | |
| CN205475253U (en) | Supporting structure of foundation pit | |
| JP2003027469A (en) | Steel pipe pile, foundation pile producing method using the same and device of the method | |
| KR100235237B1 (en) | The construction method of the structure for forming tunnel | |
| JPH11107270A (en) | Consolidated body construction method and earth retaining wall formation method | |
| JP3224435B2 (en) | Construction method of underground continuous wall | |
| JPH0718664A (en) | Rotary joint for underground boring machine | |
| JP3088929B2 (en) | How to build underground structures | |
| JPH0230891A (en) | Method and apparatus for replacing underground buried pipe | |
| KR100447872B1 (en) | Push horizontal pipe jacking apparatus | |
| JPH10252080A (en) | Method for reinforcing foundation of pier for high level road | |
| JP2023041363A (en) | Boring and agitating machine | |
| JPH0823266B2 (en) | Construction method of underground space | |
| JP2004162256A (en) | Removable buried pipe | |
| JP2971587B2 (en) | Construction method of underground continuous wall | |
| JPS6233910A (en) | Destruction of foundation of road joint part of high road | |
| JP2659612B2 (en) | Column type continuous underground wall construction method | |
| JP2828786B2 (en) | Casing shaft | |
| JP2960139B2 (en) | Construction method of underground continuous wall | |
| JPH0617590A (en) | Excavating method for tunnel | |
| JPH10331570A (en) | Pipe roof constructing method | |
| KR940002464B1 (en) | Working method and construction machine for tunnel construction |