JPS5817848B2 - Continuous row pile method and its equipment - Google Patents

Continuous row pile method and its equipment

Info

Publication number
JPS5817848B2
JPS5817848B2 JP53145669A JP14566978A JPS5817848B2 JP S5817848 B2 JPS5817848 B2 JP S5817848B2 JP 53145669 A JP53145669 A JP 53145669A JP 14566978 A JP14566978 A JP 14566978A JP S5817848 B2 JPS5817848 B2 JP S5817848B2
Authority
JP
Japan
Prior art keywords
pile
main
hole
piles
continuous
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
Application number
JP53145669A
Other languages
Japanese (ja)
Other versions
JPS5572513A (en
Inventor
十河浩一
川本剛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Raito Kogyo Co Ltd
Original Assignee
Raito Kogyo Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Raito Kogyo Co Ltd filed Critical Raito Kogyo Co Ltd
Priority to JP53145669A priority Critical patent/JPS5817848B2/en
Publication of JPS5572513A publication Critical patent/JPS5572513A/en
Publication of JPS5817848B2 publication Critical patent/JPS5817848B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Bulkheads Adapted To Foundation Construction (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)

Description

【発明の詳細な説明】 本発明は、連続柱列杭工法およびその装置1こ関するも
のである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a continuous column pile construction method and an apparatus therefor.

従来、この種の連続柱列杭工法は、構造物の山留工法と
して多くの提案がなされ、かつ汎用されている。
Conventionally, this type of continuous column pile construction method has been proposed many times as a pile construction method for structures, and is widely used.

しかしながら、特Iこ軟弱地盤(こおいては杭間)こ残
土があることがあり、必ずしも確実な止水が達成できな
いことがある。
However, there may be residual soil in the soft ground (in this case, between the piles), and a reliable water stop may not always be achieved.

このような場合、杭を造成後、杭周辺に新た1こポーリ
ング削孔して薬液注入工法を実施したり、あらかじめ杭
間の残土の排除の目的で杭同士ラップさせて止水効果を
保持させなければならなかった。
In such cases, after constructing the piles, a new hole is drilled around the piles and a chemical injection method is carried out, or the piles are wrapped in advance to remove the remaining soil between the piles to maintain the water-stopping effect. I had to.

しかしながら、前者の方法)こおいては新たな手間と注
入材料を必要とするため多大な経費がかかるし、後者の
場合はラップケ所分だけ不経済であるととも1こ、後打
ちの杭を造成する際、ラップ部分と周辺地盤の硬度が異
なるため後打ち杭の堀削の際、アースオーガーがラップ
部分より逃げる傾向があり、杭先端においては杭のなら
びが不揃1こなる危険性がある。
However, the former method requires new labor and injection material, which is costly, while the latter method is uneconomical due to the amount of lap piles, and the need for post-drilled piles. During construction, the hardness of the lap area and the surrounding ground is different, so when drilling post-driven piles, the earth auger tends to escape from the lap area, and there is a risk that the piles will be arranged unevenly at the tip of the pile. be.

特Iこ深度が深くなる1こつれてこの傾向が増す。This tendency increases as the depth increases.

本発明は、かかる問題点をモルタルまたはコンクリート
杭と地盤と硬化材との混合杭の組合せにより一挙)こ解
決したものであって、あらかじめ先行杭を間隔を置いて
造成した後、それら先行杭間1こ親杭および止水用の側
坑を同時Iこ施工する。
The present invention solves these problems at once by combining mortar or concrete piles with piles made of a mixture of soil and hardening material. A single main pile and a water stop side shaft will be constructed at the same time.

先行杭と後打ちの親杭は一定間隔があり、杭造成工法1
こおける基本である羊独杭が他杭の影響を受けないため
最も精度の高いという利点を生しており、しかも先行杭
と親杭とぽ止水用の側坑で連続性を持たせるようIこな
し、もって杭の造成精度の向上1こよる止水性それらの
杭をガイド(こして掘削攪拌し、しかも一工程で行う効
率性(こより、止水性と施工経済性の向上を図らんとす
るものである。
There is a certain interval between the leading pile and the parent pile for later driving, and pile construction method 1
The Yodoku pile, which is the basis of the pile, has the advantage of being the most accurate because it is not affected by other piles, and it is also designed to provide continuity between the leading pile, the main pile, and the side hole for stopping water. Improving the accuracy of pile construction by improving the accuracy of pile construction 1.Water-stopping properties of those piles. It is something.

以下、本発明を図面(こ示す具体例)こよって説明する
Hereinafter, the present invention will be explained with reference to the drawings (specific examples shown).

第1図・−第4図は本発明装置を示し、1は走行車輛で
、そのブーム2等(こよって支柱3が支持されている。
Figures 1 to 4 show the apparatus of the present invention, in which 1 is a running vehicle, and its boom 2, etc. (thereby supports the support column 3).

この支柱31こは、大径の連続した主アースオーガー4
が装着されており、またこの主アースオーカー4の若干
背後1こ位置したほぼ両側1こ小径の副剤孔ロッド5,
5も並設されているこれら主アースオーガー4および副
剤孔ロッド55は上部]こおいてギヤボックス6内1こ
設けられたギヤ7.7.・・・・・・・・・)こより連
動回転するよう1こなっている。
This pillar 31 is a large-diameter continuous main earth auger 4.
is installed, and one small-diameter auxiliary hole rod 5 on almost both sides is located slightly behind the main earth ocher 4.
The main earth auger 4 and the auxiliary hole rod 55, which are also arranged in parallel, are connected to the upper part of the gear box 6, and the gear 7.7.・・・・・・・・・) This is done by 1 so that it rotates in conjunction with this.

主アースオーガー4は減速機付モータ8Iこより軸周り
1こ回転せられること1こよって、副剤孔ロッド5,5
も周方向1こ回転する。
The main earth auger 4 is rotated once around the axis by the motor 8I with a reducer.
It also rotates one rotation in the circumferential direction.

また、主アースオーガー4および副剤孔ロッド5,5は
下部1こおいて振れ止め用の間隔保持材9,9および1
01こよって間隔保持が図られている。
In addition, the main earth auger 4 and the auxiliary hole rods 5, 5 are placed in the lower part 1, and the spacing members 9, 9 and 1 for steady rest are installed.
01, the distance is maintained.

主アースオーガー4の先端1こは切削ビット4aが取付
けられ、かつ注入口4bが形成されている。
A cutting bit 4a is attached to one tip of the main earth auger 4, and an injection port 4b is formed therein.

副剤孔ロッド5,5の中間部1こは、高さ方向Iこ間隔
を置いて多数の攪拌翼5aが突設されている。
A large number of stirring blades 5a are protruded from the middle part 1 of the auxiliary agent hole rods 5, 5 at intervals of I in the height direction.

また、上部)こは注入用スイベル11が、先端1こは切
削ビット5bおよび注入口5cが設けられている。
Further, the upper part is provided with an injection swivel 11, and the tip is provided with a cutting bit 5b and an injection port 5c.

そして、主アースオーガー4および副剤孔ロッド5゜5
は中空となっており、それらの基部から送給しそれぞれ
注入口4bおよび注入口5cからモルタル、コンクリー
トおよび地盤硬化材を吐出するようlこなっている。
Then, the main earth auger 4 and the auxiliary hole rod 5゜5
are hollow, and are configured to feed mortar, concrete, and soil hardening material from their bases and discharge them from injection ports 4b and 5c, respectively.

さら1こ、副剤孔ロッド5,5の先端は主アースオーガ
ー4の先端より上位(たとえば1〜5m)1こ置けられ
ており、仮Iこ同一高さ位置とした場合1こおける間隔
保持材9,9および10の連結)こよる主アースオーガ
ー4および副剤孔ロッド5,5の相互干渉を防止し、円
滑な削孔ができるよう工夫されている。
In addition, the tips of the auxiliary hole rods 5, 5 are placed one point higher than the tip of the main earth auger 4 (for example, 1 to 5 m), and if they are placed at the same height, a gap of one point is maintained. It is devised to prevent mutual interference between the main earth auger 4 and the auxiliary hole rods 5, 5 due to connection of materials 9, 9 and 10, and to enable smooth drilling.

次1こ、本発明の施工法を第5図〜第8図)こよって説
明する。
Next, the construction method of the present invention will be explained with reference to FIGS. 5 to 8).

まず第5図のよう1こ、あらかじめ所定間隔を置いて先
行杭50,50’を造成した後、削孔機をその間1こ配
置し、主アースオーガー4により排土して主削孔51を
削孔する。
First, as shown in Fig. 5, after preparing the preceding piles 50 and 50' at a predetermined interval, a hole drilling machine is placed between them, and the earth is removed by the main earth auger 4 to form the main hole 51. Drill a hole.

続いて、先行杭50,50’をガイドとしながら、第6
図のよう(こ副剤孔ロッド5,51こよって副側孔52
を削孔しながら、注入口5cからセメントミルクまたは
セメントベントナイト等の地盤1便化材53を周辺地盤
に注入しながら攪拌翼5afこよって土と地盤硬化材を
混合する。
Next, using the leading piles 50 and 50' as guides, the sixth
As shown in the figure (the secondary hole rods 5, 51 and the secondary hole 52
While drilling a hole, a soil hardening material 53 such as cement milk or cement bentonite is injected into the surrounding ground from the injection port 5c, and the soil and the soil hardening material are mixed by the stirring blade 5af.

こうして所定深度まで施工が終ったならば、第7図のよ
う1こ主アースオーガー4を介して、モルタルまたはコ
ンクリートからなる杭造成材54を注入口4bから注入
しながら、削孔機全体を引き上げる。
When the construction is completed to a predetermined depth in this way, as shown in Fig. 7, the whole drilling machine is pulled up while injecting pile-forming material 54 made of mortar or concrete from the injection port 4b through the main earth auger 4. .

その結果、主アースオーガー4の掘削部分の土砂は地上
1こ排土され第8図のよう)こ先行杭50.50’間)
こ親杭60を造成できるととも1こ、先行杭50,50
’と親杭60との間1こ地盤硬化材と土との混合杭、す
なわちフィルコンクリート杭の側坑70.70’を造成
できる。
As a result, the earth and sand from the excavated part of the main earth auger 4 was removed from the ground by a distance of 50.50' (as shown in Figure 8).
If you can create this main pile 60, you can also create 1 lead pile, 50,50 lead piles.
A side pit 70.70' of a mixed pile of soil hardening material and soil, that is, a fill concrete pile, can be created between the main pile 60 and the main pile 60.

そして、側坑70.70’は先行杭50,50’および
親杭601こ密着したものを造成できる。
The side shafts 70 and 70' can be constructed in close contact with the leading piles 50, 50' and the parent pile 601.

また第7図1こ示すよう(こ、先行杭50,50’およ
び親杭60の径りが600mmφとすると、これIこ対
してこれらの間隙lは100〜150mm、側坑70゜
70′の径は150〜200mmφとするのがよい。
In addition, as shown in Fig. 7, if the diameter of the leading piles 50, 50' and the parent pile 60 is 600 mm, the gap l between them is 100 to 150 mm, and the diameter of the side shaft 70°70' is 600 mm. The diameter is preferably 150 to 200 mmφ.

一方、第9図1こ示すよう(こ一列に施工してもよいし
、必要により親杭60内1こH形鋼または鉄筋電を補強
用)こ挿入してもよい。
On the other hand, as shown in FIG. 9, (they may be constructed in one row, or if necessary, one H-shaped steel or reinforcing bar may be inserted into the parent pile 60 for reinforcement).

以上の通り、本発明は先行杭を間隔を置いてあらかじめ
造成し、次(こ造成する親杭も先行杭と一定の間隔をあ
けて達成するので各々の杭は相互]こ一定間隔があるの
で単独杭となるため、各々の杭の施工精度は非常)こ高
くなるとともに、その施工精度のよい杭をガイドとして
側坑を削孔するので側坑の施工精度もよく連続柱列杭の
止水性は向上する。
As described above, in the present invention, the preceding piles are created in advance at intervals, and the next (the parent piles to be created are also spaced a certain distance from the preceding piles, so each pile is spaced from each other). Since each pile is a single pile, the construction accuracy of each pile is extremely high.Since the side shaft is drilled using the pile with high construction accuracy as a guide, the construction accuracy of the side shaft is also good, and the water-stopping properties of continuous column piles are improved. will improve.

また、各杭間の止水を目的とした側坑は小径であるため
、同径の杭を連続またはラップさせて連続させる方法(
こ比較して掘削面積および使用材料が少なくてすみ経済
的である。
In addition, since the side shaft for the purpose of stopping water between each pile has a small diameter, it is recommended to continue using piles of the same diameter or by wrapping them (
Compared to this, it requires less excavation area and less material, making it more economical.

しかも、性質の異なった親杭および側坑すなわちモルタ
ルまたはコンクリート杭とフィルコンクリート杭を同時
1こ造成するから、先行杭、親杭、側坑の相互位置を決
定するのが各々単独1こ行う方法1こ比して容易であり
、位置設定の困難性から解放される。
Moreover, since the parent pile and side shaft, which have different properties, namely, the mortar or concrete pile and the fill concrete pile, are constructed simultaneously, the mutual positions of the preceding pile, the parent pile, and the side shaft must be determined once each. This is easier than the previous method and frees you from the difficulty of position setting.

また、連続柱列杭の一側面は路面−1こ形成されるので
これを土留壁として用いる場合1こ復起し材の取付が容
易である。
In addition, since one side of the continuous column pile is formed at the road surface, it is easy to attach a backing material when the pile is used as an earth retaining wall.

また、上記の利点の他本発明はモルタルまたはコンクリ
ート杭とフィルコンクリート杭の組合せなので多連オー
ガーでフィルセメント柱列杭を造成する方法1こ比して
先行杭および親杭は(地盤と硬化材の攪拌混合ではなし
)。
In addition to the above-mentioned advantages, since the present invention is a combination of mortar or concrete piles and fill concrete piles, the preceding pile and parent pile are (not stirred and mixed).

完全なモルタルまたはコンクリート1こ置換を行うため
、全体的]こ強度の高い柱列杭が造成できるし、機械が
比較的大型1こならず狭い場所での施工も可能となる。
Since one mortar or concrete is completely replaced, column piles with high overall strength can be created, and construction can be performed in narrow spaces without requiring a relatively large machine.

【図面の簡単な説明】[Brief explanation of drawings]

部拡大図、第3図はギヤボツダスのI−I線矢視図、第
4図は■−■線矢視図、第5図〜第8図は本発明法を施
工順Iこ示したもめで各aは平面図、bは断面図、第9
図は杭の配列態様を異1こする平面図である。 1・・・・・・走行車輛、2・・・・・・ブーム、3・
・・・・・支柱、4・・・・・・主アースオーガー、4
a・・・・・・切削ビット、4b・・・・・・注入口、
5・・・・・・副剤孔ロッド、5a・・・・・・攪拌翼
、5b・・・・・・切削ビット、5c・・・・・・注入
口、7・・・・・・ギヤ、8・・・・・・減速機モータ
、9,10・・・・・・間隔保持材、11・・・・・・
スイベル、50,50’・・・・・・先行杭、51・・
・・・・主削孔、52・・・・・・副剤孔、53゜54
・・・・・・造成材、6b・・・・・・親杭、70.7
0’・・・・・・側枕。
Fig. 3 is a view taken along the line I-I of the gearbox, Fig. 4 is a view taken along the ■-■ line, and Figs. 5 to 8 show the construction order of the method of the present invention. Each a is a plan view, b is a sectional view, and the ninth
The figure is a plan view showing a different arrangement of the piles. 1... Traveling vehicle, 2... Boom, 3.
・・・・・・Pole, 4・・・・・・Main earth auger, 4
a...Cutting bit, 4b...Inlet,
5... Sub-agent hole rod, 5a... Stirring blade, 5b... Cutting bit, 5c... Inlet, 7... Gear , 8...Reducer motor, 9, 10... Spacing material, 11...
Swivel, 50, 50'... Leading stake, 51...
...Main hole, 52...Auxiliary hole, 53゜54
...... Construction material, 6b... Main pile, 70.7
0'... Side pillow.

Claims (1)

【特許請求の範囲】 1 所定の間隔を置いて先行杭を造成した後、先行杭と
ほぼ同径で、連続したオーガーを有する主削孔装置とそ
の両側]こ主削孔装置の径より小径で。 多数の攪拌翼を突設した副剤孔装置を具備した削孔機に
より、前記先行杭間]こ所定深度まで主削孔および副側
孔を同時1こ削孔するととも1こ、前記主削孔内を排土
してモルタルまたはコンクリートの杭造成材を注入して
主削孔位置Iこ親杭を造成し、副側孔位置Iこ地盤硬化
材を注入して土と混合してソイ、ルモルタルの側坑を造
成し、前記先行杭と親杭との間を側坑)こより連続させ
ることを特徴とする連続柱列杭工法。 2 主削孔装置である先端の切削ビットと連続したオー
ガーを有する大径のアースオーガーのほぼ両側Iこ、そ
のアースオーガーより小径で、先端Iこ切削ビットを有
し、中間(こ多数の攪拌翼を突設した副剤孔装置である
ロンドを並設し、主アースオーガーおよび副剤孔ロッド
をそれぞれ周方向1こ回転自在となし、前記主アースオ
ーガーおよび副剤孔ロッドの先端部Iこ注入口を形成し
、アースオーガーの注入口1こより杭造成材を吐出可能
とし、副剤孔ロッドの内部を通して地盤硬化材を吐出可
能としであることを特徴とする連続柱列杭装置。
[Scope of Claims] 1. After creating preceding piles at predetermined intervals, a main drilling device having a continuous auger with approximately the same diameter as the preceding pile and both sides thereof] a diameter smaller than the diameter of the main drilling device. in. By using a drilling machine equipped with an auxiliary hole device with a large number of protruding stirring blades, one main hole and one secondary hole are simultaneously drilled to a predetermined depth between the preceding piles. The earth is removed from the hole and mortar or concrete pile-forming material is injected to create the main pile at the main hole position I, and the soil hardening material is injected into the secondary hole position I and mixed with the soil. A continuous column row pile construction method characterized by creating a mortar side shaft and making the space between the preceding pile and the parent pile continuous from the side shaft. 2. Almost both sides of a large-diameter earth auger, which is the main drilling device, has a cutting bit at the tip and a continuous auger. Rondo, which is an auxiliary agent hole device with protruding wings, is arranged in parallel, and the main earth auger and the auxiliary agent hole rod are rotatable one rotation in the circumferential direction, and the tips of the main earth auger and the auxiliary agent hole rod are A continuous column pile device, characterized in that an injection port is formed, a pile building material can be discharged from one injection port of an earth auger, and a soil hardening material can be discharged through the inside of an auxiliary agent hole rod.
JP53145669A 1978-11-24 1978-11-24 Continuous row pile method and its equipment Expired JPS5817848B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53145669A JPS5817848B2 (en) 1978-11-24 1978-11-24 Continuous row pile method and its equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53145669A JPS5817848B2 (en) 1978-11-24 1978-11-24 Continuous row pile method and its equipment

Publications (2)

Publication Number Publication Date
JPS5572513A JPS5572513A (en) 1980-05-31
JPS5817848B2 true JPS5817848B2 (en) 1983-04-09

Family

ID=15390338

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53145669A Expired JPS5817848B2 (en) 1978-11-24 1978-11-24 Continuous row pile method and its equipment

Country Status (1)

Country Link
JP (1) JPS5817848B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6327651Y2 (en) * 1985-10-14 1988-07-26

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5342410A (en) * 1976-09-29 1978-04-17 Nishimatsu Constr Co Ltd Method of connecting piles underground

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5342410A (en) * 1976-09-29 1978-04-17 Nishimatsu Constr Co Ltd Method of connecting piles underground

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6327651Y2 (en) * 1985-10-14 1988-07-26

Also Published As

Publication number Publication date
JPS5572513A (en) 1980-05-31

Similar Documents

Publication Publication Date Title
US4886400A (en) Side cutting blades for multi-shaft auger system and improved soil mixing wall formation process
JP7104536B2 (en) How to build an impermeable wall
JP4236119B2 (en) Construction method of mountain retaining wall
JP3750186B2 (en) Construction method of underground continuous wall
JPS5817848B2 (en) Continuous row pile method and its equipment
JP2014177827A (en) Core material and soil cement continuous wall construction method using the same
JPS5827366B2 (en) Head reinforcement pile construction equipment
JP2819025B2 (en) Soft ground improvement method
JPH09119131A (en) Construction method of column row type underground continuous wall and guide plate structure of multishaft auger machine used therefor
JPS5849254Y2 (en) Multi-axis excavator with casing
JPH03447B2 (en)
JPH0114378B2 (en)
JPS61254716A (en) Setting of in-place concrete pile
JP7082594B2 (en) How to build excavation jigs and earth retaining structures
JP2640542B2 (en) Waterproof shaft construction method
JPH0347366B2 (en)
JP3005741B2 (en) Ground improvement method
JP3726991B2 (en) Construction method of bearing capacity improvement pile
JP2899671B2 (en) Continuous drilling soil cement wall method and construction excavator
JPH0439865Y2 (en)
JPH018587Y2 (en)
JP3608119B2 (en) Excavation stirrer for ground improvement
JPH0442493B2 (en)
JPH0442356Y2 (en)
JP2001164550A (en) Improvement method of construction ground for underground structure