JPS5824028A - Concrete sheet pile construction work - Google Patents
Concrete sheet pile construction workInfo
- Publication number
- JPS5824028A JPS5824028A JP12319081A JP12319081A JPS5824028A JP S5824028 A JPS5824028 A JP S5824028A JP 12319081 A JP12319081 A JP 12319081A JP 12319081 A JP12319081 A JP 12319081A JP S5824028 A JPS5824028 A JP S5824028A
- Authority
- JP
- Japan
- Prior art keywords
- casing
- sheet pile
- concrete sheet
- driven
- driving
- 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
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
Landscapes
- Engineering & Computer Science (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)
- Structural Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はコンクリート矢板の施工方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for constructing concrete sheet piles.
河川や港湾の護岸、水路の構築、宅地造成等のｊｉｆｆ
壁等に用いられるコンクリ−Ｉ矢板の施工方法は従来、
■打撃による打込み（ドロップハンマー、エアーハンマ
ー、ディーセルハンマー）、■振動による打込み（バイ
ブロハンマー）、■静荷重などによる打込み（油圧式圧
入機）、■ノエノＩによる打込み、及びこれらの併用工
法があるか、これらはいずれも直接コンクリ−１矢板自
身に大きなり）カを加えるため、矢板１月の弛度の低下
、ひび割れ、破損などを生じる問題があった。jiff for river and port embankments, waterway construction, residential land development, etc.
Conventional construction methods for concrete I sheet piles used for walls, etc.
- Driving by impact (drop hammer, air hammer, diesel hammer), ■ Driving by vibration (vibro hammer), ■ Driving by static load (hydraulic press-in machine), ■ Driving with Noeno I, and combination methods of these. However, both of these methods directly apply a large force to the concrete sheet pile itself, resulting in problems such as a decrease in the sag of the concrete sheet pile, cracking, and damage.
本発明は、コンクリ−１矢板には外力を加えずに施工［
することにより矢板自身の弛度の低下、ひび割れ、破Ｈ
］なとを解消すること、及び鋼製のケーシングの打設可
能な範囲でのかたい地盤へのコンクリート矢板の使用を
可能にすることを目的とするものである。The present invention enables construction of concrete single sheet piles without applying external force.
By doing so, the sag of the sheet pile itself decreases, cracks, and fractures occur.
] and to enable the use of concrete sheet piles on hard ground within the range where steel casings can be cast.
この発明は、施工すべきコンクリート矢板の外形よりも
−回り大きい内形を有し」二下端が開口し且つ該下端開
口には開閉自在に基端部を枢着され先端部がお互いに接
合する２枚の端板を備えた打込みケーシングを、ハンマ
ー、バイブロハンマー等の打込手段で地盤中に所要深さ
まで打込め、打込完了後、打込ケーシング内にコンクリ
ート矢板を建込み、しかる後打込ケーシンクのみを引抜
き、内部のコンクリート矢板を地盤中に滞留させ、この
コンクリート矢板の側縁に沿って前記同様に打込ケーシ
ングを打込み、コンクリ−１−矢板を建込み、打込ケー
シングを引抜くという工程を繰返しながらコンクリート
矢板を構築して行くことを特徴とするコンクリート矢板
の施工方法に係るものである。This invention has an inner shape that is circumferentially larger than the outer diameter of the concrete sheet pile to be constructed, and two lower ends are open, and the base end is pivoted to the lower end opening so as to be freely openable and closable, and the distal ends are joined to each other. A driven casing with two end plates is driven into the ground to the required depth using a driving method such as a hammer or a vibrohammer, and after completion of driving, a concrete sheet pile is erected inside the driven casing, and then poured. Pull out only the concrete casing, let the internal concrete sheet pile stay in the ground, drive the driving casing along the side edge of this concrete sheet pile in the same manner as above, erect the concrete sheet pile, and pull out the driving casing. This relates to a method for constructing concrete sheet piles, which is characterized by constructing concrete sheet piles by repeating the following steps.
以下本発明を図面に示す実施例に基いて説明すれば、第
１図はコンクリート矢板ｉｌ＋の実施例を示すものであ
り、両側縁の連結部（ｌａ）、 （ｌｂ）はいずれも
凹形として隣接する矢板（］）どうしは第２図に示すよ
うなダルマ形断面のジョイン１（２）を用いて接合する
。第３図は打込ケーシング（３）を示すもので、Ｌ部開
口にはフランジ部（３ａ）。The present invention will be explained below based on an embodiment shown in the drawings. Fig. 1 shows an embodiment of a concrete sheet pile il+, in which the connecting portions (la) and (lb) on both side edges are both concave. Adjacent sheet piles (]) are joined using a join 1 (2) with a cross section of a cross-section as shown in FIG. Figure 3 shows the driven casing (3), with a flange part (3a) at the L opening.
下部開口には２枚の端板（３ｂ）がそれぞれ設けられて
いる。なお、図示しないか前記２枚の端板（３ｂ）はケ
ーシング（３）の内部に設けられた蝶番にて開閉自在に
取り付けられている。ケーシング（３）の内部には」二
記のコンクリ−１矢板＋１１が内ｎμを垂直に落し込め
るように連結部（１ａ）の凹部形状と相対的な断面形状
のガイド（３ｃ）が連設され、またケーシング（３）の
外側縁には、既に構築された矢板に隣接して次の矢板を
施工する際に矢板（１）の連結部（１ｂ）の凹部に沿わ
・υてケーシング（３）を打込むためのガイド（３ｄ）
が連設されている。また、ケーシング（３）内部にはケ
ーシング（３）を地盤中から噴出さけてコンクリ−１矢
板（］）と地盤とを一体にし締め固めるための加水パイ
プ（３ｅ）が内設されている。Two end plates (3b) are provided in each of the lower openings. The two end plates (3b), which are not shown, are attached to the casing (3) by a hinge provided inside the casing (3) so as to be openable and closable. Inside the casing (3), a guide (3c) with a cross-sectional shape relative to the concave shape of the connecting portion (1a) is provided in series so that the concrete sheet pile 1+11 described in "2" can be vertically inserted into the concave part (1a). Also, on the outer edge of the casing (3), when constructing the next sheet pile adjacent to the already constructed sheet pile, the casing (3) Guide for typing (3d)
are installed in succession. Further, inside the casing (3), a water addition pipe (3e) is provided for ejecting the casing (3) from the ground to unite and compact the concrete 1 sheet pile (]) and the ground.
次に、本発明による施工方法の手順を第４図に示す説明
図に従って説明すると、まず、同図ｆａｔに示すように
ケーシング（３）のみをバイブロハンマー等のハンマー
（４）により地盤中に打ち込む。このとき、打込ガイド
（５）によりケーシング（３）が垂直に打込まれるよう
にする。ケーシング（３）下端の端板（３ｂ） （３
ｂ）は、打込みの際の土圧により横状に閉じた状態とな
るので、地盤中への打込みは小さなＩル抗で行われる。Next, the procedure of the construction method according to the present invention will be explained according to the explanatory diagram shown in Fig. 4. First, as shown in the figure fat, only the casing (3) is driven into the ground with a hammer (4) such as a vibrohammer. . At this time, the casing (3) is driven vertically by the driving guide (5). End plate (3b) at the bottom of the casing (3) (3
In case of b), the earth pressure during driving causes it to close horizontally, so driving into the ground is done with a small I-ru resistance.
次に同図（ｂｌに示すようにケーシングｆ３１の打込み
が完了した時点で、同図（ｃｌに示すようにコンクリー
ト矢板（１）をケーシング（３）内部にクレーン等で吊
下げながら建込みを行う。その際、矢板ｉｌ＋はケーシ
ング（３）の内側縁に連設されたガイド（３ｃ）に矢板
（１）の連結部（１ｃ）を嵌め込むことによりケーシン
グ（３）内における矢板（］）の位置決めを行わせなが
ら落し込まれる。矢板（１）が定位置まで落し込まれた
ら、同図（ｄ＋に示すようにケーシング（３）のみを引
抜く。このとき、端板（３ｂ）は矢板（１）の存在によ
って開くので、矢板ｉｌ＋は地盤中に滞留したままケー
シング（３）のみが引抜かれることになる。ケーシング
（３）を引抜くとき、矢板（］）の囲りの地盤が軟弱化
するので前述した加水パイプ（３ｅ）に加圧水を送り水
ジェツトを噴出さぜながらケーシング（３）を引抜くこ
とにより地盤の一体化及び締め固めを行う。同図［［ｉ
ｌは最終的に矢板（１）が地盤中に設置された状態を示
す。第５図の（ａｌは、矢板＋１１を１枚施工した状態
の平面図であり、隣接する矢板の構築に際しては、同図
（ＩＩ）に示すように矢板（１１の連結部（１ｂ）の凹
部にケーシング（３）のガイｌ’（３ｄ）を案内として
ケーシング（３）を前記同様、地盤中に打込み、打込が
完了した時点で矢板（１′）をケーシング（３）内に連
結部（Ｉａ’）とガイド（３Ｃ）を案内として落し込む
。吹いでケーシング（３）を引抜くと同図（ｄ）のよう
に矢板（１′）が隣接状態に設置される。そして、矢板
（］ｌ、（１’）の連結部（Ｉｂ）、 （ｌａ’）に
前述したジヨイント部（２）を挿入する。このような工
程を繰返して一連の矢板を構築することができる。Next, when the driving of the casing f31 is completed as shown in the same figure (bl), the concrete sheet pile (1) is suspended inside the casing (3) with a crane etc. as shown in the same figure (cl). At that time, the sheet pile il+ is made by inserting the connecting part (1c) of the sheet pile (1) into the guide (3c) connected to the inner edge of the casing (3), so that the sheet pile (]) inside the casing (3) is fixed. The sheet pile (1) is dropped into position while being positioned. When the sheet pile (1) is dropped into the fixed position, only the casing (3) is pulled out as shown in the figure (d+).At this time, the end plate (3b) is inserted into the sheet pile ( 1), so only the casing (3) is pulled out while the sheet pile il+ remains in the ground.When the casing (3) is pulled out, the ground surrounding the sheet pile (]) becomes soft. Therefore, the ground is unified and compacted by sending pressurized water to the water pipe (3e) mentioned above and pulling out the casing (3) while spouting a water jet.
l indicates the state in which the sheet pile (1) is finally installed in the ground. In Fig. 5 (al) is a plan view of the state in which one sheet pile + 11 has been constructed, and when constructing the adjacent sheet pile, as shown in Fig. 5 (II), the concave part of the connecting part (1b) of the sheet pile (11) Then, drive the casing (3) into the ground using the guy l' (3d) of the casing (3) as a guide, and when the driving is completed, insert the sheet pile (1') into the casing (3) at the connecting part ( Ia') and the guide (3C) as a guide. When the casing (3) is pulled out by blowing, the sheet pile (1') is installed adjacent to it as shown in Figure (d). The aforementioned joint portions (2) are inserted into the connecting portions (Ib) and (la') of l and (1').A series of sheet piles can be constructed by repeating such steps.
なお、本実施例では、矢板の連結部を両側とも凹部とし
てジヨイントにより接合するものを示したが、従来の矢
板のように一側を凹部、他側を突部としてジヨイントを
使用しないようにすることも可能である。In addition, in this example, the connection part of the sheet pile is connected by a joint with recesses on both sides, but unlike conventional sheet piles, one side is a recess and the other side is a protrusion and joints are not used. It is also possible.
上述したように、本発明によれば、矢板を直接地盤に打
込まず、まずケーシングを打込んだ後に矢板を建込み、
建込完了後ケーシングを引抜く工法であるので、矢板１
期に夕）力か加わらず、矢板自身の強度の低−ト、Ｑび
割れ、破損なとを解消でき、かつ鋼製のケーシングの打
設可能な範囲でのかたい地盤へのフンクリ−１矢板の使
用か可能になるという効果を奏するものである。As described above, according to the present invention, the sheet piles are not driven directly into the ground, but the casing is first driven, and then the sheet piles are erected.
Since this is a construction method in which the casing is pulled out after construction is completed, 1 sheet pile
Funkri-1 sheet piles can be installed on hard ground without applying force, eliminating problems such as low strength, cracking, and breakage of the sheet piles, and within the range where steel casings can be cast. This has the effect of making it possible to use
第１図は本発明に使用する矢板の実施例を示す斜視図、
第２図はジョイン１の斜視図、第３図はケーシングの斜
視図、第４図及び第５図は本発明による工法の手順を示
す説明図である。
特許出願人 益 １）俊 信
代 理 人 伊 東 守 忠（ほか１名）第１図
第２図
第 ３ 図
第 ４ 図
（ａ） （ｂ） （ｃ）
（ｄ）第５μｍ
（ＣＩ）FIG. 1 is a perspective view showing an embodiment of the sheet pile used in the present invention;
FIG. 2 is a perspective view of the joint 1, FIG. 3 is a perspective view of the casing, and FIGS. 4 and 5 are explanatory diagrams showing the procedure of the construction method according to the present invention. Patent applicant Masu 1) Nobuyo Toshihito Moritadashi Ito (and 1 other person) Figure 1
Figure 2 Figure 3 Figure 4 (a) (b) (c)
(d) 5th μm (CI)
Claims (1)
大きい内形を有し上下端か開口し且つ該下端開口には開
閉自在に基端部を枢着され先端部かお互いに接合する２
枚の端板を備えた打込ケーシングを、ハンマー、パイプ
ロバツマ−等の打込手段で地盤中に所要深さまで打込み
、打込完了後、打込ケーシング内にコンクリート矢板を
建込み、しかる後打込ケーシンクのみを引抜き、内部の
コンクリート矢板を地盤中に滞留させ、このコンクリー
ト矢板の側縁に沿って前記同様に打込ケーシングを打込
み、コンクリート矢板を建込み、打込ケーシングを引抜
くという工程を繰返しながらコンクリート矢板を構築し
て行くことを特徴とするコンクリート矢板の施工方法。(2) It has an internal shape that is circumferentially larger than the external shape of the concrete sheet pile to be constructed, and is open at the upper and lower ends, and the base end is pivoted to the lower end opening so that it can be opened and closed, and the tip ends are connected to each other.
A driven casing with two end plates is driven into the ground to the required depth using a driving means such as a hammer or pipe hammer, and after completion of driving, a concrete sheet pile is erected inside the driven casing, and then the driven casing is driven. The process of pulling out only the casing, letting the internal concrete sheet pile stay in the ground, driving the driving casing along the side edge of the concrete sheet pile in the same manner as above, erecting the concrete sheet pile, and pulling out the driving casing is repeated. A method of constructing concrete sheet piles, which is characterized by constructing concrete sheet piles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12319081A JPS5824028A (en) | 1981-08-06 | 1981-08-06 | Concrete sheet pile construction work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12319081A JPS5824028A (en) | 1981-08-06 | 1981-08-06 | Concrete sheet pile construction work |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5824028A true JPS5824028A (en) | 1983-02-12 |
| JPS616210B2 JPS616210B2 (en) | 1986-02-25 |
Family
ID=14854416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12319081A Granted JPS5824028A (en) | 1981-08-06 | 1981-08-06 | Concrete sheet pile construction work |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5824028A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58129328A (en) * | 1982-01-29 | 1983-08-02 | Oval Eng Co Ltd | Vortex flowmeter |
-
1981
- 1981-08-06 JP JP12319081A patent/JPS5824028A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58129328A (en) * | 1982-01-29 | 1983-08-02 | Oval Eng Co Ltd | Vortex flowmeter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS616210B2 (en) | 1986-02-25 |
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