JPS60159215A - Method of driving pile - Google Patents
Method of driving pileInfo
- Publication number
- JPS60159215A JPS60159215A JP1351884A JP1351884A JPS60159215A JP S60159215 A JPS60159215 A JP S60159215A JP 1351884 A JP1351884 A JP 1351884A JP 1351884 A JP1351884 A JP 1351884A JP S60159215 A JPS60159215 A JP S60159215A
- Authority
- JP
- Japan
- Prior art keywords
- pile
- ground
- fluid
- muddy water
- excavated
- 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
- E02D5/62—Compacting the soil at the footing or in or along a casing by forcing cement or like material through tubes
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、排土量を少なくして杭を埋設する工法に関
し、更に詳しくは、地盤を泥水化させた後に杭を沈設さ
せる工法を提供するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of burying piles while reducing the amount of earth removed, and more specifically, provides a method of burying piles after turning the ground into muddy water.
既製杭の埋設工法の内で、従来の杭の外径以上の地盤欠
掘削する工法においては、スクリューオーガを用いて杭
の外径以上に地盤を掘削しながら地上に排土した後、杭
を沈設している為に、杭外周面と地盤゛との間の杭周面
摩擦力が低下し、支持力が期待できなく、その上に掘削
排土された土量が多く、その処分に多額の費用を費やし
ていた。Among the methods for burying ready-made piles, in the conventional method of excavating a hole in the ground that is larger than the outer diameter of the pile, the soil is excavated to the ground using a screw auger to a depth that is larger than the outer diameter of the pile, and then the pile is removed. Because the pile is sunken, the friction force between the pile's outer surface and the ground decreases, making it impossible to expect support.In addition, there is a large amount of excavated soil, which requires a large amount of money to dispose of. was spending a total of .
この発明は、このような欠点を改良することを目的とす
るものであり、積極的には地上に排上することな（、ジ
ェット噴射によって杭の外径以上の径゛に地盤を泥水化
させた後、杭を沈設させることを特徴とする杭の埋め込
み工法である。The purpose of this invention is to improve these drawbacks, and instead of actively draining water onto the ground (i.e., turning the ground into muddy water to a diameter larger than the outside diameter of the pile by jet injection). This is a method of embedding piles in which the piles are then sunk.
この発明は、ジェット噴射によって泥水化させるので、
撹拌棒などにより土を乱す方法と異なり、土が細かい状
態の泥水となり、そのために杭の沈設が更に容易になる
にも拘らず、泥水化した土が杭の沈設に伴う杭外周での
圧迫により水分が地盤中へ押し出されるとともに土が杭
外周に均一に圧迫され分布されるので、杭周面摩擦が向
上し、叉゛持力が十分期待できる。This invention turns the water into muddy water by jet injection, so
Unlike the method of disturbing the soil with a stirring rod, etc., the soil becomes fine muddy water, which makes it easier to sink the pile. As moisture is pushed out into the ground and the soil is evenly compressed and distributed around the outer circumference of the pile, friction on the circumferential surface of the pile is improved, and sufficient holding force can be expected.
この発明のジェット噴射に用いられる流体としては空気
、水などの流体が用いられ、地盤の状態（例えば含水量
）によって適宜変化される。また杭の周面摩擦による支
持力を更に高める必要のある地盤の場合には、ジェット
噴射に用いられる噴流体をセメントを主体としたセメン
ト等を含む硬化性の流体とすることが好ましい。この硬
化性の流体としては、七メン目Ｃ）と水（５）の比、Ｗ
／Ｃを７０％以上としたセメントミルクが好ましく、更
に好ましくは、硬化性の流体が杭乞沈設し終るまで硬化
しないように、適当な種類と量の遅延材を配合して用い
るのが望ましい。The fluid used in the jet injection of the present invention is air, water, or the like, and is appropriately changed depending on the condition of the ground (for example, water content). In addition, in the case of the ground where it is necessary to further increase the supporting force due to friction on the circumferential surface of the pile, it is preferable that the jetting fluid used for jetting is a hardening fluid mainly containing cement or the like. As for this hardening fluid, the ratio of seventh layer C) and water (5), W
Cement milk with /C of 70% or more is preferred, and more preferably, an appropriate type and amount of retardant is used in the mixture so that the hardening fluid does not harden until the pile is completely laid down.
ジェット噴射のみで掘削する場合は、ロッドの先端に下
向とその上方側面に水平方向にジェット噴射ノズルを設
けることが好ましく、特に夫々１個のみのノズルとして
、ロッドを回転させながら掘削するのが、特に好ましい
。When excavating with only jet injection, it is preferable to install jet injection nozzles downward at the tip of the rod and horizontally on the upper side of the nozzle.In particular, it is preferable to use only one nozzle each and excavate while rotating the rod. , particularly preferred.
またジェット噴射のみでは掘削し難い地盤の場合は、牙
１図のように、ロッド１の先端に先行掘削羽根２と下向
きのジェット噴射ノズル３を設け、その上方にジェット
噴射ノズル４乞そのわずかな上方に設けるのが好まし℃
・。ジェット噴射はやや斜め下向に行ってもよいが水平
方向に行うのが好ましい。In addition, in the case of ground that is difficult to excavate with jet injection alone, as shown in Fig. 1, a preliminary excavation blade 2 and a downward jet injection nozzle 3 are installed at the tip of the rod 1, and a jet injection nozzle 4 is installed above it. Preferably installed above
・. Although jet injection may be performed slightly diagonally downward, it is preferable to perform jet injection horizontally.
このときの先行掘削羽根の外径は、杭の外径以下とし、
ジェット噴射により杭の外径以上の径に地盤を泥水化さ
せるようにすることが好ましい。The outer diameter of the preceding excavation blade at this time shall be equal to or less than the outer diameter of the pile.
It is preferable that the jet spray turns the ground into muddy water to a diameter equal to or larger than the outer diameter of the pile.
なお、この発明におけるジェット噴射の噴射圧力は、一
般的には１０ｋｉｌｄ以上であれば十分であるが、矛１
図に示したように噴射ノズル３，４がロッド１の近辺に
ある場合（この場合の方がより充分に泥水化できる。）
は、この発明では上部にまで泥水が存在するので噴射圧
力を３０〜３００ゆ７ゴの範四で、地盤の硬さと杭径に
よって調節することが好ましい。In addition, the injection pressure of the jet injection in this invention is generally sufficient if it is 10 kilos or more;
As shown in the figure, when the injection nozzles 3 and 4 are located near the rod 1 (in this case, the water can be turned into mud more effectively).
In this invention, since muddy water is present even in the upper part, it is preferable to adjust the injection pressure in the range of 30 to 300 g, depending on the hardness of the ground and the diameter of the pile.
更に所定深さに達した後にジェット噴射の圧力を１０１
ｄ以上、更に好ましくはｚｏｋｇ／ｄ以上増加させ、噴
射流体のセメントミルクを噴射させて泥水化する径を拡
大するとともにセメントミルクの球根を設けて杭の支持
力を更に大きくすることもできる。なおセメントミルク
の噴射圧は２００ｋｇ１ｄ以上とすることが特に好まし
い。Furthermore, after reaching a predetermined depth, the jet injection pressure is increased to 101
The supporting force of the pile can be further increased by increasing the diameter by more than d, more preferably by more than zokg/d, by injecting the cement milk of the injection fluid to enlarge the diameter of the muddy water, and by providing a cement milk bulb. In addition, it is particularly preferable that the injection pressure of cement milk is 200 kg1d or more.
この発明は、上記のように、積極的には地上に排土する
ことな（ジェット噴射によって杭の外径以上の径に地盤
を泥水化させた後に杭を沈設させる構成であるので矛２
図に示す如（所定の深さまで掘削泥水化した後に杭５を
沈設させるときに杭の沈設が容易になる。杭の沈設は、
自重による沈設が不可能の場合には矛２図に示すごと（
、杭５の頭部に矢印方向に圧入力を加えて沈設するか、
杭５を回転させるか、杭５に上方の振動を加える事によ
り、更に沈設が容易となる。As mentioned above, this invention does not actively remove soil to the ground (it has a structure in which the pile is sunk after the ground is turned into muddy water by jet injection to a diameter larger than the outside diameter of the pile).
As shown in the figure (when sinking the pile 5 after drilling to a predetermined depth and turning it into muddy water, it becomes easier to sink the pile.
If sinking by own weight is not possible, as shown in Figure 2 (
, apply pressure force to the head of the pile 5 in the direction of the arrow to sink it, or
By rotating the pile 5 or applying upward vibration to the pile 5, the installation becomes easier.
杭が所定の深度まで沈設できたら、矛３図に示すように
、矢印方向に十分に圧力を加えるか、軽打な行なって未
泥水化の支持層に定着せしめるか、前記の更に拡大泥水
化したセメントミルク層中に ・定着せしめる。Once the pile has been sunk to the specified depth, apply sufficient pressure in the direction of the arrow as shown in Figure 3, or tap it lightly to make it settle in the supporting layer of non-muddy water, or further expand the muddy water as described above.・Set in the cement milk layer.
また、この発明に適用できる杭としては円筒状の杭でも
Ｈ型の杭でもよいが、杭の支持力をより高いできる点か
ら円筒状の杭が好ましく、また先端閉塞の杭よりも開放
端の杭の方が、杭沈設に伴う泥水の地上への溢れ出し量
が少なく好ましい。Furthermore, although the piles applicable to this invention may be cylindrical or H-shaped, cylindrical piles are preferable from the standpoint of increasing the bearing capacity of the pile, and piles with open ends are preferable to piles with closed ends. Piles are preferable because they reduce the amount of muddy water that spills onto the ground when the piles are sunk.
更に噴流体に硬化性の流体を必要に応じて混入させるこ
とにより孔壁の崩壊が防止されて杭の萬止まりの心配が
７ヨク、その上に杭周面の地盤もこの硬化性の流体によ
り改良できるので杭周面の摩擦力が更に太き（なり杭の
摩擦支持力が一層向上される。Furthermore, by mixing a hardening fluid into the jet fluid as necessary, the collapse of the hole wall is prevented and there is no need to worry about the pile becoming stuck. As this can be improved, the frictional force on the circumferential surface of the pile becomes even thicker (and the frictional supporting force of the pile is further improved).
更に、この発明は、ジエン１−ＩＪ流により泥水化させ
る方法であるので、施工地盤が硬質粘土や粘着性の強い
土質であっても容易に泥水化できる。Furthermore, since the present invention is a method of turning muddy water using a diene 1-IJ flow, even if the construction ground is hard clay or highly sticky soil, it can be easily turned into muddy water.
以上に示したように、この発明は掘削排土する土量が少
なく、杭の外径以上に掘削するにも拘らず、高い支持力
が得られる優れた杭の埋込み工法である。As described above, the present invention is an excellent method for embedding piles in which the amount of soil to be excavated and removed is small, and high bearing capacity can be obtained even though the excavation is performed to a depth greater than the outer diameter of the pile.
塔・１図はこの発明に従う地盤の泥水化工程の一例を示
す断面図であり、１１２図は、泥水化された地盤に杭を
沈設する工程の一例を示す断面図であり、矛３図はこの
発明に従って埋設された杭の一例を示す断面図である。
図中１はロッド、２は先行掘削刃、３は下方向噴射ノズ
ル、４は横方向噴射ノズル、５は（いである。
特許出願人 旭化成工業株式会社Figure 1 is a sectional view showing an example of the process of turning the ground into muddy water according to the present invention, Figure 112 is a sectional view showing an example of the process of sinking piles into muddy ground, and Figure 3 is FIG. 2 is a sectional view showing an example of a pile buried according to the present invention. In the figure, 1 is a rod, 2 is a leading drilling blade, 3 is a downward injection nozzle, 4 is a lateral injection nozzle, and 5 is (I).Patent applicant Asahi Kasei Corporation
Claims (1)
ること７ヨ（、杭の外径以上の径に地ａを泥水化させた
後、杭を沈設させることを特徴とする杭の埋込み工法 ２、 ジェット噴射の噴流体にセメントラ主体とした硬
化性の流体を使用することを特徴とする特許請求の範囲
矛１項記載の杭の埋込み工法[Claims] 1. Actively discharging soil to the ground by jet injection (7), turning the ground a into muddy water to a diameter equal to or larger than the outer diameter of the pile, and then sinking the pile. Pile embedding method 2, the pile embedding method according to claim 1, characterized in that a hardening fluid mainly composed of cementora is used as the jet fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59013518A JPH0656016B2 (en) | 1984-01-30 | 1984-01-30 | Pile embedding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59013518A JPH0656016B2 (en) | 1984-01-30 | 1984-01-30 | Pile embedding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60159215A true JPS60159215A (en) | 1985-08-20 |
| JPH0656016B2 JPH0656016B2 (en) | 1994-07-27 |
Family
ID=11835371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59013518A Expired - Lifetime JPH0656016B2 (en) | 1984-01-30 | 1984-01-30 | Pile embedding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0656016B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62253817A (en) * | 1986-04-28 | 1987-11-05 | Nippon Concrete Ind Co Ltd | Burying work of custom-made concrete pile with expanded head |
| JP2006233749A (en) * | 2005-01-26 | 2006-09-07 | Mitani Sekisan Co Ltd | Construction method for root hardened part of pile hole, digging method for pile hole, construction device for root hardened part, and digging head |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5148507A (en) * | 1974-10-23 | 1976-04-26 | Kumagai Gumi Co Ltd | KOATSUSUIFUNSHAKUTSUSAKUSOCHI |
| JPS5356804A (en) * | 1976-11-01 | 1978-05-23 | Minoru Kuroda | Pile driving method in use of fluid jet |
| JPS5367206A (en) * | 1976-11-25 | 1978-06-15 | Taiho Kensetsu Kk | Method of driving pile |
-
1984
- 1984-01-30 JP JP59013518A patent/JPH0656016B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5148507A (en) * | 1974-10-23 | 1976-04-26 | Kumagai Gumi Co Ltd | KOATSUSUIFUNSHAKUTSUSAKUSOCHI |
| JPS5356804A (en) * | 1976-11-01 | 1978-05-23 | Minoru Kuroda | Pile driving method in use of fluid jet |
| JPS5367206A (en) * | 1976-11-25 | 1978-06-15 | Taiho Kensetsu Kk | Method of driving pile |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62253817A (en) * | 1986-04-28 | 1987-11-05 | Nippon Concrete Ind Co Ltd | Burying work of custom-made concrete pile with expanded head |
| JP2006233749A (en) * | 2005-01-26 | 2006-09-07 | Mitani Sekisan Co Ltd | Construction method for root hardened part of pile hole, digging method for pile hole, construction device for root hardened part, and digging head |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0656016B2 (en) | 1994-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3852971A (en) | Pile structure | |
| JPS60159216A (en) | Method of driving pile | |
| JPS5985028A (en) | Steel pipe pile and laying work thereof | |
| JPS60159215A (en) | Method of driving pile | |
| JPS62242011A (en) | Method and apparatus for constructing shallow ground-improving pile | |
| JPS6115209B2 (en) | ||
| JP2002537216A (en) | Concrete with elastic material and pile made of the concrete | |
| JPS5924026A (en) | Pile formation work | |
| JPS60126423A (en) | Pile driving method | |
| JP4202548B2 (en) | Pile foundation | |
| JP2514596B2 (en) | Ground drilling equipment | |
| KR940003481B1 (en) | Casing tube and working method of soil cement wall | |
| JPH0325121A (en) | Sinking of pile in inner drilling pile method | |
| JPS62146319A (en) | Foot protection work of custom-made pile | |
| JPH0711132B2 (en) | Ground stabilization method | |
| JP2553423B2 (en) | Large diameter hard ground improvement device | |
| JP2004027610A (en) | Burying method for prefabricated pile | |
| JPS5941520A (en) | Construction of foundation pile and excavator therefor | |
| JPH0626036A (en) | Concrete pile installation method by inner excavation | |
| KR19990048467A (en) | Auger pile method using expandable mortar | |
| GB2142677A (en) | Method of placing a pile in the earth and boring rod used therefore | |
| JP2003277738A (en) | Pile periphery fixing liquid and embedding method of pile | |
| IE57077B1 (en) | A method of and apparatus for grouting | |
| KR900005913B1 (en) | Base stake inflated in bump state at lower end there of and its construction | |
| JPS5930159B2 (en) | water treatment equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |