JPS6322920A - Foundation pile construction - Google Patents
Foundation pile constructionInfo
- Publication number
- JPS6322920A JPS6322920A JP16646386A JP16646386A JPS6322920A JP S6322920 A JPS6322920 A JP S6322920A JP 16646386 A JP16646386 A JP 16646386A JP 16646386 A JP16646386 A JP 16646386A JP S6322920 A JPS6322920 A JP S6322920A
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- drilling
- tube
- hole
- motor
- 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
- 238000010276 construction Methods 0.000 title abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 238000005553 drilling Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000008267 milk Substances 0.000 claims abstract description 6
- 210000004080 milk Anatomy 0.000 claims abstract description 6
- 235000013336 milk Nutrition 0.000 claims abstract description 6
- 238000009412 basement excavation Methods 0.000 claims description 10
- 239000004570 mortar (masonry) Substances 0.000 claims description 8
- 239000004568 cement Substances 0.000 claims description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 239000011083 cement mortar Substances 0.000 abstract 2
- 230000035515 penetration Effects 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、ビル建築その他の建造物の基礎地盤ｆｊｔ
ａ築する際の基礎杭の打設法に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] This invention is directed to the foundation ground fjt of building construction and other structures.
This relates to the method of driving foundation piles when building a.
〔従来の技術及び発明が解決しようとする問題点〕従来
は、基礎杭を打設する工法としてハンマー式或は圧縮式
１法がよく知られている。但しハンマー或は打撃音がは
げしいので、都市部又は住宅地に於ては殆ど採用さ幻て
いない。又、圧縮式は施工時間が長くかへり、コスト高
となる嫌がある。[Prior art and problems to be solved by the invention] Conventionally, the hammer type or compression type 1 method is well known as a construction method for driving foundation piles. However, since the hammer or impact sound is loud, it is rarely used in urban areas or residential areas. In addition, the compression type requires a long construction time and is expensive.
そこで、施工時間を短縮し低廉なる基礎杭打設が可能で
あるかどうかの問題点が生じてくる。Therefore, the question arises as to whether it is possible to shorten construction time and inexpensively drive foundation piles.
この発明は、上記問題点に鑑み之を解決せんとして提案
せられたものであり、クレーン柱体に昇降自在に設けら
れた荷台にモータを載置し、このモータの回転力を減速
機を介してチャックに伝達し、更に該チャックに打設せ
らるぺぎ鋼管等をチャックして該鋼管を地面土足立設し
、而も、前記鋼管の下端部には掘削刃を取付け、その後
、前記モータを駆動し、その回転力を鋼管を介して掘削
刃を回転せしめることにより掘削孔を穿設すると同時に
、この掘削孔内に該鋼管を下降埋入し、必要ｆより前記
掘削刃によって掘削孔を開穿し乍ら該掘削刃部よりセメ
ントミルク或はモルタル等を鋼管と掘削孔壁間に注入す
ることを特徴とする基礎杭打投法を提供せんとするもの
である。This invention was proposed as a solution to the above problems, and involves mounting a motor on a loading platform that is movable up and down on a crane column, and transmitting the rotational force of the motor through a speed reducer. Furthermore, the steel pipe, etc. to be driven is chucked by the chuck, and the steel pipe is set upright on the ground, and a digging blade is attached to the lower end of the steel pipe, and then the motor is A drilling hole is drilled by rotating the drilling blade through the steel pipe, and at the same time, the steel pipe is lowered into the drilling hole, and as necessary, the drilling blade is used to drill the drilling hole. It is an object of the present invention to provide a foundation pile driving method characterized by injecting cement milk, mortar, etc. between the steel pipe and the wall of the excavation hole from the excavation blade part while excavating the excavation hole.
この発明は、モータの回転を鋼管の下端部に取付けられ
ている掘削刃に伝達し、この掘削刃によって地盤を開穿
する。そして、この掘削刃による掘削孔径は概して鋼管
の直径より犬であるため。This invention transmits the rotation of the motor to the excavating blade attached to the lower end of the steel pipe, and the excavating blade excavates the ground. And because the diameter of the hole drilled by this drilling blade is generally smaller than the diameter of the steel pipe.
掘削孔の開穿動作に追随して鋼管は当該掘削孔内に埋入
されていく。而して、必要によっては前記回転挿入動作
の途中から、掘削刃間に設けられた噴出孔よりモルタル
を噴出せしめて該掘削孔壁と鋼管との間隙に注入せしめ
る。斯くして、所定の深さに到達したときは一チャック
を９Ａ管頭部より取外せばよい。斯くして、当該鋼管は
基礎杭として地盤内に挿入され、且つ、その周囲はモル
タル等の硬化によって基礎が強固となるのである。又、
ｇＡ管の長さが不足するとぎは鋼管の通常の継足法によ
って結合し、前記操作を繰返せばよい。Following the opening operation of the borehole, the steel pipe is buried in the borehole. If necessary, during the rotational insertion operation, mortar is ejected from the ejection hole provided between the drilling blades and injected into the gap between the wall of the drilling hole and the steel pipe. In this way, when a predetermined depth is reached, one chuck can be removed from the 9A pipe head. In this way, the steel pipe is inserted into the ground as a foundation pile, and the foundation is strengthened by hardening of mortar etc. around it. or,
If the length of the gA pipe is insufficient, it can be joined by the usual joining method for steel pipes, and the above operation can be repeated.
以下、この発明の一実施例を別紙添附図面に従って詳述
する。（出ヱクレーン柱体であり、クローラ（２）の−
側より上方に伸張して立設される。更に、クレーン柱体
（１）−側にはガイド（３）が上下に設けられ、このガ
イド（３）を上下動自在に荷台（４）が遊嵌されている
。そして、この荷台（４）にモータ（５）及び減速機（
６）が載＃され、更にその下端部にチャック（力が回動
自在に嵌着されている。従って、チャック（７）はそ−
タ（５）に連動される。更に、該チャック（７）は鋼管
（８）をチャックすることができるものであり、且つ一
チャックすると同時に該鋼管（８）にモータ（５）の回
転を伝達するようになっている。又、鋼管（８）の下端
部には掘削刃（９）が取付けられる。この掘削刃（９）
は回転し乍ら地盤を掘削して掘削孔Ｑｌを開穿するので
あるが、該掘削刃は通常回転と同時て回転方向に拡開し
、依って、掘削孔Ｑ（Ｔｈの内径は鋼管（８）の直径よ
り大径になるのである。そこで、先づ前記荷台（４）は
クレーン柱体（１）の上方部にワイヤーロープαυによ
って吊上げられ、基奨杭打設個所に優Ｗ（８）の下端部
を当接する。そして、モータ（６）に回転を与支幻ば−
この回転力はチャック（７）を介して鋼管（８）が回転
する。然るときは、この鋼管（８）の下端部に取付けら
れている掘削刃（９）が回転し、地盤を穿孔し乍ら掘削
孔ＯＩを形成し、所定の深さまで掘削穿孔するのである
。勿論、鋼管（８）の長さが掘削孔の深さに不足すると
ぎは通常の継足法によって鋼管を結合すればよい。又、
必要によっては掘削穿孔し、鋼管（８）を掘削孔α〔内
に回転挿入する途中から掘削刃（９）の方間に設けであ
る噴出孔ａ２α■・・・よりモルタル或はセメントミル
クａ３を噴出せしめ、鋼管（８）と掘削孔ααの孔壁間
に注入せしめてもよい。又、肖初は前記噴出孔ａ２０３
・・・より水を射水し乍ら掘削してもよい。或は、鋼管
（８）を所定深さまで回転挿入した後、抛削孔ａ樟と孔
壁間にモルタルを注入して硬化せしめてもよい。斯くし
て、回転挿入された鋼管（８）は地盤に挿入された侭、
当蚊地盤内に打設されたことになり一更に、前記モルタ
ル或はセメントミルクαＪ等によって硬化され。Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings. (This is the crane column, and the − of the crawler (2)
It is erected and extends upward from the sides. Further, guides (3) are provided vertically on the crane column (1)-side, and a loading platform (4) is loosely fitted onto the guides (3) so as to be movable up and down. A motor (5) and a speed reducer (
6) is placed thereon, and the chuck (7) is rotatably fitted on the lower end of the chuck (7).
(5). Further, the chuck (7) is capable of chucking the steel pipe (8), and simultaneously transmits the rotation of the motor (5) to the steel pipe (8) once chucked. Further, a digging blade (9) is attached to the lower end of the steel pipe (8). This drilling blade (9)
While rotating, the drill bit excavates the ground to open the borehole Ql, but the drilling blade expands in the direction of rotation at the same time as normal rotation, and therefore the inner diameter of the borehole Q (Th) is equal to that of the steel pipe ( Therefore, the loading platform (4) is first hoisted to the upper part of the crane column (1) by a wire rope αυ, and a Y-W (8) is placed at the location where the basic pile will be driven. ) and then apply rotation to the motor (6).
This rotational force rotates the steel pipe (8) via the chuck (7). In such a case, the excavation blade (9) attached to the lower end of the steel pipe (8) rotates to form an excavation hole OI while drilling into the ground to a predetermined depth. Of course, if the length of the steel pipes (8) is insufficient for the depth of the excavated hole, the steel pipes may be joined by the usual joining method. or,
If necessary, drill a hole and pour mortar or cement milk A3 from the spout hole A2α, which is provided in the direction of the drilling blade (9), from the middle of rotationally inserting the steel pipe (8) into the drilling hole α. Alternatively, it may be injected between the steel pipe (8) and the hole wall of the borehole αα. Also, Xiaochu is the above-mentioned vent a203.
...You may excavate while spraying more water. Alternatively, after the steel pipe (8) is rotated and inserted to a predetermined depth, mortar may be injected between the drilled hole a and the hole wall and hardened. In this way, the steel pipe (8) that has been rotated and inserted is inserted into the ground,
After being poured into the ground, it is further hardened with the mortar or cement milk αJ.
該鋼管（８）は地盤と一体となって強固な基礎を形成す
るととくなるのである。The steel pipe (8) is integrated with the ground to form a strong foundation.
尚、セメントミルク（１３等の注入法は特別に限定され
るものではなく、通常の方式でよい。又、＠管（８）の
回転挿入動作にワイヤーロープｑυも同調させて該鋼管
（８）を下降せしめることは可熱であり。Note that the method of pouring cement milk (13, etc.) is not particularly limited and may be any ordinary method. Also, the wire rope qυ is synchronized with the rotational insertion operation of the steel pipe (8). It is heatable to lower it.
更に鋼管（８）の回転を円滑にするためには、クレーン
柱体（１）の下端部に受部α４を設けて鋼管（８）を上
下方向摺動自在に支承せしめることを可とする。Furthermore, in order to make the rotation of the steel pipe (8) smooth, it is possible to provide a receiving part α4 at the lower end of the crane column (1) to support the steel pipe (8) so as to be slidable in the vertical direction.
この発明は、叙述せる一実施例に於て詳述せる如く、基
礎杭として打設せられる鋼管は掘削孔の開穿動作と同時
に回転挿入されて、一定の深さまで到達し、周囲のモル
タル等の硬化と相俟って強固な基礎地盤を構成できるの
であり、且つ、−旦オーガー等で掘削孔を開穿し、該オ
ーガーを引上げてその後、鋼管を挿入するもので９工な
いので工期が著しく短縮され、それだけコストダウンに
寄与することができろようになったのである。As described in detail in one embodiment, the steel pipe driven as a foundation pile is rotated and inserted at the same time as the drilling operation of the excavation hole, and reaches a certain depth, and the surrounding mortar etc. Combined with the hardening of the steel, a strong foundation can be constructed.In addition, the construction period is shortened because it requires only 9 steps to first drill a hole with an auger, pull up the auger, and then insert a steel pipe. The time has been significantly shortened, which can contribute to cost reduction.
図はこの発明の一実施例を示し、第１図は全体の解説正
面図、＠２図（イ）（ロ）は夫々掘削状態を示す解説縦
断面図である。
符号説明The figures show one embodiment of the present invention, with Fig. 1 being an explanatory front view of the whole, and Figs. Code explanation
Claims (1)
置し、このモータの回転力を減速機を介してチャックに
伝達し、更に該チャックに打設せらるべき鋼管等をチャ
ックして該鋼管を地面上に立設し、而も、前記鋼管の下
端部には掘削刃を取付け、その後、前記モータを駆動し
、その回転力を鋼管を介して掘削刃を回転せしめること
により掘削孔を穿設すると同時に、この掘削孔内に該鋼
管を下降埋入し、必要により前部掘削刃によつて掘削孔
を開穿し乍ら該掘削刃部よりセメントミルク或はモルタ
ル等を鋼管と掘削孔壁間に注入することを特徴とする基
礎杭打設法。A motor is placed on a platform provided on the crane column so that it can be raised and lowered, and the rotational force of this motor is transmitted to a chuck via a reducer, and the chuck chucks the steel pipe, etc. to be driven. A steel pipe is erected on the ground, and a drilling blade is attached to the lower end of the steel pipe.Then, the motor is driven and the rotational force is transmitted through the steel pipe to rotate the drilling blade, thereby drilling a drilling hole. At the same time as drilling, lower the steel pipe into the excavation hole, open the excavation hole with the front excavation blade if necessary, and apply cement milk or mortar from the excavation blade to the steel pipe and excavate it. A foundation pile driving method characterized by pouring between the walls of the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16646386A JPS6322920A (en) | 1986-07-15 | 1986-07-15 | Foundation pile construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16646386A JPS6322920A (en) | 1986-07-15 | 1986-07-15 | Foundation pile construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6322920A true JPS6322920A (en) | 1988-01-30 |
Family
ID=15831864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16646386A Pending JPS6322920A (en) | 1986-07-15 | 1986-07-15 | Foundation pile construction |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6322920A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5517175A (en) * | 1978-07-25 | 1980-02-06 | Canon Inc | Motor driving device of winding-speed-variable camera |
-
1986
- 1986-07-15 JP JP16646386A patent/JPS6322920A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5517175A (en) * | 1978-07-25 | 1980-02-06 | Canon Inc | Motor driving device of winding-speed-variable camera |
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