JPS62242011A - Method and apparatus for constructing shallow ground-improving pile - Google Patents
Method and apparatus for constructing shallow ground-improving pileInfo
- Publication number
- JPS62242011A JPS62242011A JP8460486A JP8460486A JPS62242011A JP S62242011 A JPS62242011 A JP S62242011A JP 8460486 A JP8460486 A JP 8460486A JP 8460486 A JP8460486 A JP 8460486A JP S62242011 A JPS62242011 A JP S62242011A
- Authority
- JP
- Japan
- Prior art keywords
- auger
- pipe
- ground
- push
- pile
- 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
- 238000000034 method Methods 0.000 title abstract description 13
- 239000002689 soil Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000010276 construction Methods 0.000 claims description 24
- 230000001141 propulsive effect Effects 0.000 claims description 5
- 230000002265 prevention Effects 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims 1
- 239000004576 sand Substances 0.000 abstract description 7
- 239000004568 cement Substances 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000005056 compaction Methods 0.000 description 4
- 238000007596 consolidation process Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000011549 displacement method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 239000011814 protection agent Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、浅層地盤改良杭工法およびその装置に関する
。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a shallow ground improvement pile construction method and its apparatus.
（従来の技術〕
軟弱地盤個所において、構造物に対する地盤耐力がない
時には、従来、置換土工法、杭基礎工法。(Conventional technology) When the ground is soft and there is no bearing capacity for the structure, conventional methods such as replacement earth construction method and pile foundation construction method are used.
薬液注入工法、圧密工法（プレロード工法、サンドコン
パクシラン工法）、水抜き工法等の工法により、軟弱地
盤の強化が行なわれている。Soft ground is being strengthened using methods such as chemical injection, consolidation methods (preload method, sand compaction method), and water drainage method.
しかしながら、近年の施工環境を考慮するとこれらの工
法には、次に述べるような問題がある。However, considering the recent construction environment, these construction methods have the following problems.
すなわち、置換土工法では、掘削による周辺施設（家屋
等）への地盤沈下に伴う影響、掘削土の処理の困難さ、
土留工事による工費の増大、置換土用としての購入上が
多く工費が多大となる等の問題がある。In other words, with the earth displacement method, the impact of ground subsidence on surrounding facilities (houses, etc.) due to excavation, the difficulty of disposing of excavated soil,
There are problems such as an increase in construction costs due to earth retaining work and a large amount of construction costs due to the large amount of replacement earth purchased.
杭基礎工法では、施工環境から無振動、無騒音工法とな
ることが多く、排土の処理が困難である、孔壁保護用剤
の使用により水質汚染が発生する、杭のみで反力をとる
ことから大掛かりな施工となり、工事費が割高となる等
の問題がある。Pile foundation construction methods are often vibration-free and noise-free due to the construction environment, making it difficult to dispose of waste soil, causing water pollution due to the use of hole wall protection agents, and taking reaction force only with piles. Therefore, there are problems such as large-scale construction and relatively high construction costs.
薬液注入工法では、地下水質を汚染する、注入量が明確
でなく、地盤改良効果に信頼性がなく、施工費が高い等
の問題がある。The chemical injection method has problems such as contaminating groundwater quality, unclear injection amount, unreliable ground improvement effect, and high construction costs.
ブレロード工法では、先行盛り土を行なうための土量が
必要である、圧密に時間がかかる、路側では、先行盛り
土を行なう場合、隣接する用地も含める必要があり、施
設（家屋）等が近接する個所では、施工ができない等の
問題がある。In the Bre Road construction method, a large amount of soil is required for pre-filling, and it takes time to consolidate.On the roadside, when pre-filling, it is necessary to include adjacent land, and it is necessary to include the adjacent land, and it is necessary to include the adjacent land in areas where facilities (houses), etc. are close to each other. However, there are problems such as impossibility of construction.
サンドコンパクション工法では、軟弱地盤内に砂を圧入
することから、周辺地盤の圧密は起こるが、サンドパイ
ルそのものに支持力があまりなく、このことから、圧密
層そのものによる地盤改良となり、全体的な範囲でのコ
ンパクションを考慮しないと地盤支持力が期待できない
、施工機材が大掛かりであることから施工規模が大きい
場合でないと採用が困難であり施工費が高くなる、又、
砂の圧入時に振動が発生する等の問題がある。In the sand compaction method, sand is injected into the soft ground, so the surrounding ground is compacted, but the sand pile itself does not have much bearing capacity, so the ground is improved by the compaction layer itself, and the overall area is Ground bearing capacity cannot be expected unless compaction is taken into account, and the construction equipment is large-scale, making it difficult to use unless the scale of construction is large, and construction costs will be high.
There are problems such as vibration occurring when sand is pressed in.
水成き工法では、地下水の汲み上げにより圧密沈下の促
進を図ることから効果が出るまでに時間がかかる、周辺
施設（家屋等）に影響が出、汲み揚げた水の処理等の問
題がある。The water construction method promotes consolidation settlement by pumping up groundwater, so it takes time to become effective, it affects surrounding facilities (houses, etc.), and there are problems with the treatment of the pumped water.
本発明は、上記のような問題を解決するためになされた
もので、環境破壊を引き起こすことなく、軟弱地盤を充
分強化することのできる浅層地盤改良杭工法およびその
装置を提供することを目的とする。The present invention was made in order to solve the above-mentioned problems, and an object of the present invention is to provide a shallow ground improvement pile method and its device that can sufficiently strengthen soft ground without causing environmental destruction. shall be.
本発明に係わる浅層地盤改良杭工法は、ドリル翼を外周
に有し、押込パイプの先端に形成される円錐状のオーガ
を、軟弱地盤のうちの浅層部地盤内に挿入することによ
り、周辺を圧密した孔穴を形成し、この孔穴が所定の深
さに到達後、前記オーガを引き抜きながら、前記押込パ
イプの先端から中詰材を前記孔穴内に圧入し、周辺地盤
と沈下変位量が一様となるような摩擦杭を形成すること
により不等沈下防止層をつくるものである。The shallow ground improvement pile method according to the present invention involves inserting a conical auger, which has drill wings on the outer periphery and is formed at the tip of a push-in pipe, into the shallow ground of soft ground. A hole is formed with the surrounding area consolidated, and after the hole reaches a predetermined depth, a filling material is press-fitted into the hole from the tip of the push-in pipe while pulling out the auger, and the amount of subsidence displacement with the surrounding ground is adjusted. By forming uniform friction piles, an uneven subsidence prevention layer is created.
また、本発明の地盤改良杭装置は、押込パイプの先端に
オーガを形成してなる地盤改良杭装置において、前記押
込パイプ内にスクリューコンベアを配置するとともに、
前記押込パイプの先端開口部に内側から外側に開く弁を
配置し、前記オーガは、円筒部と、この円筒部の上下に
形成される円錐部とから構成し、前記下側の円錐部にオ
ーガの回転力を推進力に変換するドリル翼を設け、又、
上側の円錐部には孔壁崩壊している土を引抜時に圧密す
る為のドリル翼を設けたものである。Further, the ground improvement pile device of the present invention is a ground improvement pile device in which an auger is formed at the tip of a push-in pipe, in which a screw conveyor is disposed within the push-in pipe, and
A valve that opens from the inside to the outside is arranged at the tip opening of the push-in pipe, and the auger is composed of a cylindrical part and a conical part formed above and below the cylindrical part, and the auger is attached to the lower conical part. A drill blade is installed to convert the rotational force of the machine into propulsion force, and
The upper conical part is equipped with drill blades to consolidate soil whose walls have collapsed during extraction.
本発明の浅層地盤改良杭工法においては、円錐状のオー
ガを、軟弱地盤内浅層部に挿入することにより、周辺を
圧密した孔穴を形成するとともに、中詰材を孔穴内に圧
入し、摩擦杭を形成することから、周辺地盤と摩擦杭と
が、荷重分担を異にしながら、沈下変位量が一様となり
不等沈下防止層をつくることにより、上載荷重に充分耐
えることのできる地盤を形成することができる。In the shallow ground improvement pile method of the present invention, a conical auger is inserted into a shallow part of the soft ground to form a hole with a consolidated periphery, and a filling material is press-fitted into the hole. Since friction piles are formed, the surrounding ground and friction piles share the load differently, but the amount of settlement is uniform, creating an uneven settlement prevention layer, thereby creating a ground that can sufficiently withstand the overburden load. can be formed.
また、本発明の地盤改良杭装置では、押込パイプ内にス
クリューコンベアを配置するとともに、押込パイプの先
端開口部に内側から外側に開く弁を配置したので、オー
ガの引き抜き時に容易に中詰材を孔穴内に供給できる。In addition, in the ground improvement pile device of the present invention, a screw conveyor is placed inside the push-in pipe, and a valve that opens from the inside to the outside is placed at the tip opening of the push-in pipe, so that filling material can be easily removed when the auger is pulled out. Can be supplied into the hole.
また、オーガを、円筒部と、この円筒部の上下に形成さ
れる円錐部とから構成し、下側の円錐部にオーガの回転
力を推進力に変換するドリル翼を設けたので、孔穴の周
辺に圧密層を形成しながら、容易にオーガを地盤内に挿
入することができ、又、上側の円錐部に圧密するための
ドリル翼を設けたので孔壁の崩れた土を再度孔壁に押し
付けることができ排土がない。In addition, the auger is composed of a cylindrical part and a conical part formed above and below this cylindrical part, and the lower conical part is equipped with a drill blade that converts the rotational force of the auger into propulsive force. The auger can be easily inserted into the ground while forming a consolidated layer around it, and a drill blade for consolidation is provided on the upper conical part, so soil that has collapsed on the hole wall can be re-attached to the hole wall. It can be pressed and there is no soil removal.
以下、本発明の詳細を図面に示ず一実施例について説明
する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, one embodiment of the present invention will be described in detail without being shown in the drawings.
第１図は、本発明の地盤改良杭装置の一実施例を示すも
ので、図において符号１１は、主柱１３を有するベース
マシンを示している。主柱１３の上端には、押込パイプ
１５の上端に形成されるホッパー１７が、吊りワイヤ１
９により、吊り持ちされている。押込パイプ１５は主柱
１３に配置されるシリンダ２１により上下動自在とされ
ている。FIG. 1 shows an embodiment of the soil improvement pile device of the present invention, and in the figure, reference numeral 11 indicates a base machine having a main pillar 13. At the upper end of the main column 13, a hopper 17 formed at the upper end of the push-in pipe 15 is connected to the hanging wire 1.
It is held suspended by 9. The push-in pipe 15 is vertically movable by a cylinder 21 arranged on the main column 13.
しかして１、二の実施例の地盤改良杭装置では、押込パ
イプ１５内に駆動装置２３により回転されるスクリュー
コンベア２５が配置されている。押込パイプ１５の先端
開口部には、内側から外側に開く弁２７が配置されてい
る。押込パイプ１５の先端部には、オーガ２９が配置さ
れている。このオーガ２９は、第２図に示すように、円
筒部３１と、この円筒部３１の上下に形成される円錐部
３３．３５とから構成されている。下側の円錐部３５に
は、オーガ２９の回転力を推進力に変換するドリル翼３
７があり、上側の円錐部３３にドリル翼３８が形成され
ている。なお、押込パイプ１５は、ロータリーパワーヘ
ッド３９により回動自在とされている。In the ground improvement pile devices of the first and second embodiments, a screw conveyor 25 rotated by a drive device 23 is disposed inside the push pipe 15. A valve 27 that opens from the inside to the outside is arranged at the tip opening of the push-in pipe 15. An auger 29 is arranged at the tip of the push pipe 15. As shown in FIG. 2, this auger 29 is composed of a cylindrical portion 31 and conical portions 33, 35 formed above and below this cylindrical portion 31. The lower conical part 35 has a drill blade 3 that converts the rotational force of the auger 29 into propulsive force.
7, and a drill blade 38 is formed on the upper conical portion 33. Note that the push-in pipe 15 is rotatable by a rotary power head 39.
第３図および第４図は、オーガ２９を軟弱地盤４０に押
し込んだ時の表土の盛り上がりを防止するウェイト４１
を示すもので、このウェイト４１は、半割体４３．４５
をボルト４７により結合して構成され、ウェイト４１の
中心部にオーガ２９を挿入する貫通孔４９が形成されて
いる。Figures 3 and 4 show a weight 41 that prevents the topsoil from rising when the auger 29 is pushed into soft ground 40.
This weight 41 is a half body 43.45
A through hole 49 into which the auger 29 is inserted is formed in the center of the weight 41.
以上のように構成された地盤改良杭装置を用いて、本発
明の浅層地盤改良杭工法は、以下述べるようにして行な
われる。Using the soil improvement pile device configured as described above, the shallow soil improvement pile construction method of the present invention is carried out as described below.
すなわち、まず、第５図に示すように、軟弱地盤４０上
に、ウェイト４１が２かれ、オーガ２９を軟弱地ｆｆ１
４０に押し込んだ時の表土の盛り上がりによる応力の散
逸が防止される。この後、押込パイプ１５がロータリー
パワーヘッド３９により回転された状態で、シリンダ２
１により、軟弱地ｍｄＱ内に挿入される。この時、オー
ガ２９の円錐部３５により、周辺を圧密した孔穴５１が
形成される。また、オーガ２９にドリル翼３７が配置さ
れているため、オーガ２９の回転力が推力となり、押込
パイプ１５の軟弱地盤４０への挿入が容易となり、ベー
スマシン１１の小型化を図ることができる。この孔穴５
１が所定の深さに到達後、押込パイプ１５の先端に形成
される弁２７が開とされる。この後、第６図に示すよう
に、オーガ２９を逆回転を与えつつ引き抜きながら、ス
クリュコンベア２５が回転され、ホッパー１７内の中詰
材（例えばセメントと砂との混合物）５３が、スクリュ
コンベア２５により、押込パイプ１５の先端から孔穴５
１内に圧入される。なお、この引き抜き時にも、逆回転
を与えることがらオーガ２９の上部の円錐部３３により
、軟弱地盤４０の周辺には、再度圧密層が形成され孔壁
周辺地盤の緩みが防止される。そして、押込パイプ１５
の引き抜き後、一定時間置くことにより一１中詰材５３
が固まり、第７図に示すような摩擦杭５５が形成される
。That is, as shown in FIG. 5, two weights 41 are placed on the soft ground 40, and the auger 29
Dissipation of stress due to the heaving of the topsoil when pushed into 40 is prevented. After that, with the push-in pipe 15 being rotated by the rotary power head 39, the cylinder 2
1, it is inserted into the soft ground mdQ. At this time, the conical portion 35 of the auger 29 forms a hole 51 whose periphery is compacted. Further, since the drill blades 37 are arranged on the auger 29, the rotational force of the auger 29 becomes a thrust, making it easy to insert the push pipe 15 into the soft ground 40, and making it possible to downsize the base machine 11. This hole hole 5
1 reaches a predetermined depth, a valve 27 formed at the tip of the push-in pipe 15 is opened. Thereafter, as shown in FIG. 6, the screw conveyor 25 is rotated while the auger 29 is reversely rotated and pulled out, and the filling material (for example, a mixture of cement and sand) 53 in the hopper 17 is transferred to 25, the hole 5 is inserted from the tip of the push-in pipe 15.
It is press-fitted into 1. Also during this extraction, the conical portion 33 at the top of the auger 29 applies reverse rotation, so that a consolidated layer is formed again around the soft ground 40, thereby preventing the ground around the hole wall from loosening. And push pipe 15
After pulling out, by leaving it for a certain period of time, the filling material 53
is solidified, and a friction pile 55 as shown in FIG. 7 is formed.
すなわち、以上のように構成された地盤改良杭工法では
、円錐状のオーガ２９を、軟弱地盤４０に挿入すること
により、周辺を圧密した孔穴５１を形成するとともに、
中詰材５３を孔穴５１内に圧入し、摩擦杭５５を形成す
るので、周辺地盤と摩擦杭５５とが、荷重分担を異にし
ながら、沈下変位量が一様とされ、上載荷重に充分耐え
ることのできる地盤を形成することができる。That is, in the ground improvement pile construction method configured as described above, by inserting the conical auger 29 into the soft ground 40, a hole 51 with a consolidated periphery is formed, and
Since the filling material 53 is press-fitted into the hole 51 to form the friction pile 55, the surrounding ground and the friction pile 55 share the load differently, but the amount of settlement displacement is uniform, and it can sufficiently withstand the overburden load. It is possible to form a solid foundation.
また、以上のように構成された地盤改良杭装置では、押
込バイブ１５内にスクリューコンベア２５を配置すると
ともに、押込パイプ１５の先端開口部に内側から外側に
開く弁２７を配置したので、オーガ２９の引き抜き時に
容易に中詰材５３を孔穴５１内に供給できる。また、オ
ーガ２９を、円筒部３１と、この円筒部３１の上下に形
成される円錐部３３．３５とから構成し、下側の円錐部
３５にオーガ２９の回転力を推進力に変換するドリル翼
３７を設けたので、孔穴５１の周辺に圧密Ｈを形成しな
がら、容易にオーガ２９を地盤内に挿入することができ
る。In addition, in the ground improvement pile device configured as described above, the screw conveyor 25 is arranged inside the pushing vibrator 15, and the valve 27 that opens from the inside to the outside is arranged at the tip opening of the pushing pipe 15, so that the auger 29 The filling material 53 can be easily supplied into the hole 51 when it is pulled out. In addition, the auger 29 is composed of a cylindrical portion 31 and conical portions 33 and 35 formed above and below the cylindrical portion 31, and the lower conical portion 35 is provided with a drill that converts the rotational force of the auger 29 into propulsive force. Since the wings 37 are provided, the auger 29 can be easily inserted into the ground while forming the consolidation H around the hole 51.
さらに、以上のように構成された浅層地盤改良杭工法お
よびその装置によれば、掘削土および排土が出ないため
これらの処理が不要となる。掘削を行なわないため周辺
建物に影響がない。水質汚染がない。孔壁を圧密するこ
とから、杭周辺地盤が圧密され支持力が増す。例えばモ
ルタル杭を作ることから充分な垂直反力を得ることがで
き、又、短い鉄線を混入することで座屈に対する抵抗力
が増大することもできる。無振動、無騒音工法である等
の利点がある。Furthermore, according to the shallow ground improvement pile construction method and its apparatus configured as described above, excavated soil and waste soil are not generated, so that the treatment of these soils is not necessary. There will be no impact on surrounding buildings as there will be no excavation. No water pollution. By consolidating the hole wall, the ground around the pile is consolidated and the bearing capacity is increased. For example, sufficient vertical reaction force can be obtained by making mortar piles, and resistance to buckling can be increased by incorporating short iron wires. It has advantages such as vibration-free and noise-free construction method.
なお、本発明において摩擦杭とは、第８図に示すように
軟弱地盤層における不等沈下防止層に設けられるものを
言う。In the present invention, the friction pile refers to a pile installed in an uneven settlement prevention layer in a soft ground layer, as shown in FIG.
以上述べたように本発明によれば、環境破壊を引き起こ
すことなく、軟弱地盤を充分強化することのできる地盤
改良杭工法およびその装置を提供することができるとい
う利点がある。As described above, the present invention has the advantage that it is possible to provide a ground improvement pile method and an apparatus thereof that can sufficiently strengthen soft ground without causing environmental destruction.
第１図は本発明の地盤改良杭装置の一実施例を示す側面
図、第２図は第１図のオーガ部の詳細を示す一部縦断面
図、第３図および第４ｒｌ！Ｊはウェイトの上面図およ
び側面図、第５図ないし第７図は本発明の浅層地盤改良
杭工法の一実施例を示す説明図、第８図は本発明におけ
る摩擦杭の説明図である。
１５・・・押込パイプ、２５・・・スクリュコンベア、
２７・・・弁、２９・・・オーガ、３１・・・円筒部、
３３．３５・・・円錐部、３７゜３８・・・ドリル翼、
５１・・・孔穴、５３・・・中詰材、５５・・・摩擦杭
。
＃４３図
ム１
第４図Fig. 1 is a side view showing one embodiment of the soil improvement pile device of the present invention, Fig. 2 is a partial vertical cross-sectional view showing details of the auger part in Fig. 1, Figs. 3 and 4! J is a top view and a side view of the weight, Figures 5 to 7 are explanatory diagrams showing one embodiment of the shallow ground improvement pile construction method of the present invention, and Figure 8 is an explanatory diagram of the friction pile in the present invention. . 15... Push pipe, 25... Screw conveyor,
27... Valve, 29... Auger, 31... Cylindrical part,
33.35...Conical part, 37°38...Drill blade,
51... Hole hole, 53... Filling material, 55... Friction pile. #43 Figure 1 Figure 4
Claims (2)
される円錐状のオーガを、軟弱地盤のうちの浅層部地盤
内に挿入することにより、周辺を圧密した孔穴を形成し
、この孔穴が所定の深さに到達後、前記オーガを引き抜
きながら、前記押込パイプの先端から中詰材を前記孔穴
内に圧入し、周辺地盤と沈下変位量が一様となるような
摩擦杭を形成することにより不等沈下防止層を造ること
を特徴とする浅層地盤改良杭工法。(1) By inserting a conical auger, which has a drill blade on the outer periphery and is formed at the tip of a push pipe, into a shallow part of the soft ground, a hole is formed with the surrounding area consolidated; After this hole reaches a predetermined depth, while pulling out the auger, filler material is press-fitted into the hole from the tip of the push-in pipe, and a friction pile is created so that the amount of subsidence is uniform with the surrounding ground. A shallow ground improvement pile construction method that is characterized by creating an uneven settlement prevention layer by forming piles.
良杭装置において、前記押込パイプ内にスクリューコン
ベアを配置するとともに、前記押込パイプの先端開口部
に内側から外側に開く弁を配置し、前記オーガは、円筒
部と、この円筒部の上下に形成される円錐部とから構成
し、前記下側の円錐部にオーガの回転力を推進力に変換
するドリル翼、又、上側の円錐部には孔壁崩壊している
土を引抜時に圧密するためのドリル翼を設けたことを特
徴とする地盤改良杭装置。(2) In a ground improvement pile device in which an auger is formed at the tip of a push-in pipe, a screw conveyor is arranged inside the push-in pipe, and a valve that opens from the inside to the outside is arranged at the tip opening of the push-in pipe, The auger is composed of a cylindrical part and a conical part formed above and below the cylindrical part, and the lower conical part has a drill blade that converts the rotational force of the auger into propulsive force, and the upper conical part has a drill blade that converts the rotational force of the auger into propulsive force. A ground improvement pile device characterized in that it is equipped with drill wings for consolidating soil whose hole walls have collapsed during extraction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8460486A JPS62242011A (en) | 1986-04-12 | 1986-04-12 | Method and apparatus for constructing shallow ground-improving pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8460486A JPS62242011A (en) | 1986-04-12 | 1986-04-12 | Method and apparatus for constructing shallow ground-improving pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62242011A true JPS62242011A (en) | 1987-10-22 |
| JPH0536565B2 JPH0536565B2 (en) | 1993-05-31 |
Family
ID=13835286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8460486A Granted JPS62242011A (en) | 1986-04-12 | 1986-04-12 | Method and apparatus for constructing shallow ground-improving pile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62242011A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04309617A (en) * | 1991-04-04 | 1992-11-02 | Teruo Koi | Method for improving foundation ground and device therefor |
| CN1035342C (en) * | 1993-02-05 | 1997-07-02 | 长治市建筑工程总公司地基处理公司 | Method and apparatus for making compacted pile |
| JP2006124957A (en) * | 2004-10-26 | 2006-05-18 | Tenox Corp | Excavating bit for construction of anchor, and construction method for anchor, using it |
| EP1687488A2 (en) * | 2003-10-23 | 2006-08-09 | Geotechnical Reinforcement, Inc. | Apparatus and method for building support piers from one or successive lifts formed in a soil matrix |
| JP2011032702A (en) * | 2009-07-31 | 2011-02-17 | Maeda Corp | Method and apparatus for constructing soil improving pile |
| US8152415B2 (en) | 2000-06-15 | 2012-04-10 | Geopier Foundation Company, Inc. | Method and apparatus for building support piers from one or more successive lifts formed in a soil matrix |
| JP2013213401A (en) * | 2013-06-21 | 2013-10-17 | Maeda Corp | Construction method of ground improvement pile |
| JP2015206226A (en) * | 2014-04-22 | 2015-11-19 | 雅重機株式会社 | Construction method of cement-based soil pile |
| JP2017031680A (en) * | 2015-08-03 | 2017-02-09 | 株式会社日本住宅保証検査機構 | Construction method and construction machine of hydraulic-setting solidification material liquid substitution column |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5873617A (en) * | 1981-09-22 | 1983-05-02 | ドニエプロペトロフスキイ・インジエネルノ−ストロイテルニイ・インスチチユ−ト | Apparatus and method for constructing tubular stake |
-
1986
- 1986-04-12 JP JP8460486A patent/JPS62242011A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5873617A (en) * | 1981-09-22 | 1983-05-02 | ドニエプロペトロフスキイ・インジエネルノ−ストロイテルニイ・インスチチユ−ト | Apparatus and method for constructing tubular stake |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04309617A (en) * | 1991-04-04 | 1992-11-02 | Teruo Koi | Method for improving foundation ground and device therefor |
| CN1035342C (en) * | 1993-02-05 | 1997-07-02 | 长治市建筑工程总公司地基处理公司 | Method and apparatus for making compacted pile |
| US8152415B2 (en) | 2000-06-15 | 2012-04-10 | Geopier Foundation Company, Inc. | Method and apparatus for building support piers from one or more successive lifts formed in a soil matrix |
| EP1687488A2 (en) * | 2003-10-23 | 2006-08-09 | Geotechnical Reinforcement, Inc. | Apparatus and method for building support piers from one or successive lifts formed in a soil matrix |
| EP1687488A4 (en) * | 2003-10-23 | 2009-07-22 | Geotechnical Reinforcement Inc | Apparatus and method for building support piers from one or successive lifts formed in a soil matrix |
| JP2006124957A (en) * | 2004-10-26 | 2006-05-18 | Tenox Corp | Excavating bit for construction of anchor, and construction method for anchor, using it |
| JP2011032702A (en) * | 2009-07-31 | 2011-02-17 | Maeda Corp | Method and apparatus for constructing soil improving pile |
| JP2013213401A (en) * | 2013-06-21 | 2013-10-17 | Maeda Corp | Construction method of ground improvement pile |
| JP2015206226A (en) * | 2014-04-22 | 2015-11-19 | 雅重機株式会社 | Construction method of cement-based soil pile |
| JP2017031680A (en) * | 2015-08-03 | 2017-02-09 | 株式会社日本住宅保証検査機構 | Construction method and construction machine of hydraulic-setting solidification material liquid substitution column |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0536565B2 (en) | 1993-05-31 |
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