JPS6062326A - Formation work of cut-off wall and sheet pile therefor - Google Patents
Formation work of cut-off wall and sheet pile thereforInfo
- Publication number
- JPS6062326A JPS6062326A JP16759383A JP16759383A JPS6062326A JP S6062326 A JPS6062326 A JP S6062326A JP 16759383 A JP16759383 A JP 16759383A JP 16759383 A JP16759383 A JP 16759383A JP S6062326 A JPS6062326 A JP S6062326A
- Authority
- JP
- Japan
- Prior art keywords
- soil cement
- cut
- sheet pile
- wall
- 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.)
- Pending
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
- E02D5/20—Bulkheads or similar walls made of prefabricated parts and concrete, including reinforced concrete, in situ
Abstract
Description
【発明の詳細な説明】
本願発明は、矢板を芯に建込んだソイルセメン）Ｍから
なる止水壁の造成工法及びそれに使用する矢板に関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a construction method for a water-stop wall made of soil cement (M) with sheet piles as its core, and sheet piles used therein.
従来この種の止水壁造成工法として、スクリューオーガ
により順次一部ラップ状態で連続する多数の円形整孔か
らなる連続孔を掘削し、該連続孔内にセメントミルクを
注入すると共に掘削土砂と混合してソイルセメントをつ
くり、とのソイルセメントの硬化前に該フィルセメント
内にチャンネル状の鋼矢板金順次係合しつつ建込み、つ
いでソイルセメントの硬化後該フィルセメント壁の所要
高さ範囲の土砂を開削してソイルセメント壁を露出させ
る工法が知られている。しかし、この従来工法では、鋼
矢板の係合建込みに多大の時間と労力を要する欠点があ
った。Conventionally, this type of water stop wall construction method involves drilling a continuous hole consisting of a number of continuous circular holes in a partially lapped state using a screw auger, injecting cement milk into the continuous hole, and mixing it with the excavated soil. Then, before the soil cement hardens, channel-shaped steel sheet piles are sequentially engaged and built into the fill cement, and after the soil cement hardens, the required height range of the fill cement wall is built. A known construction method involves excavating earth and sand to expose a soil-cement wall. However, this conventional construction method has the drawback that it requires a great deal of time and effort to engage and erect the steel sheet piles.
願第２発明は材料の節減を可能にする上記第１発明の実
施に使用する矢板を提供する。The second invention provides a sheet pile for use in carrying out the first invention, which enables material savings.
以下図面を参照して本願発明の詳細な説明する。The present invention will be described in detail below with reference to the drawings.
まず、便宜上本願第２発明の詳細な説明する。First, for convenience, the second invention of the present application will be described in detail.
第５，６図において、本発明矢板ｆｌ＋は、所定間隔を
あけて互に平行する２本の支柱部（２） 、＋２１’と
、面皮柱部！２） 、＋２）’間に接続した止水板部（
３）と、面皮柱１２） 、＋２１’に設けた継手部（４
）、（４１’とからなり、上記支柱部＋２１ 、＋２１
’は、後述の撹拌ロッドで掘削される順次一部ラップ状
態で連続する多数円形１孔からなる連続孔における円形
整孔よりも適宜小径の円形鋼管であって、面皮柱部＋２
１ 、（２１’が上記連続孔の円形製孔／本分に相当す
る間隔で鋼板の止水板部（３）により接続されており、
上Ｇ己止水板部（３１は面皮柱部（２１、（２１’の横
断面における中心を結ぶ線上にあって、面皮柱部＋２１
、（２１’間において支柱部はぼ上端から後述の開削
商さよりも／ ＝ ２ ｍ下の位置まで延長し、それ以
下の部分は除かれている。In FIGS. 5 and 6, the sheet pile fl+ of the present invention has two pillars (2) and +21' parallel to each other at a predetermined interval, and a face-barrel pillar! 2), +2)' Water stop plate part (
3), and the joint part (4
), (41'), and the above-mentioned pillar parts +21, +21
' is a circular steel pipe having an appropriately smaller diameter than a circular hole in a continuous hole consisting of multiple circular holes that are partially lapped and drilled by a stirring rod described later, and has a surface skin column part + 2
1, (21' is connected by a water stop plate part (3) of a steel plate at an interval corresponding to the circular hole making/main part of the continuous hole,
The upper G self-water stop plate part (31 is on the line connecting the centers of the cross sections of the face skin pillar part (21, (21'), and the face skin pillar part + 21
, (21'), the support column extends from the upper end to a position 2 m below the cut-and-cut depth, which will be described later, and the portion below this is excluded.
上記一方の継手部（４）は、支柱部（２）の止水板部（
３）と反対の外側面に欠設された横断面はぼ矩形Ｃ形の
ものであり、他方の継手部（４）′は支柱部（２）′の
上水板部（御と反対の外側面に突設された上記継手部（
４）内に端面から嵌入可能の橿断面Ｔ形のものである。One of the above-mentioned joint parts (4) is connected to the water stop plate part (
The cross section cut out on the outer surface opposite to 3) is approximately rectangular C-shaped, and the other joint part (4)' is connected to the water plate part of the column part (2)' The above joint part protruding from the side (
4) It has a T-shaped cross section that can be inserted into the inside from the end face.
これら継手部（４１、（４１’も上Ｇピ止水板部（、ｊ
ｌと同じ高さ範囲にわたって突設されている。These joint parts (41, (41' also upper G pipe water stop plate part (, j
It protrudes over the same height range as l.
次に１本願第１発明について説明する。第９図示のよう
に中空ロッド（６）の下部外周面にその長手方向に一定
間隔をあけて多数本の攪拌刃（７）−を半径方向へ突設
すると共にロッド（６）下端に掘削刃（８）−を設けて
なる攪拌掘削ロッド（５）の３本を互に平行状態で且隣
り合う攪拌掘削ロッド（５１、（５１の攪拌刃（ｎ ＝
−、（７）−の攪拌径が一部うツブする状態で出力軸輪
−にそれぞれ接続した多軸攪拌掘削機を使用し、まず、
地盤に第１図示のように順次一部ラップ状態で連続する
３本の円形整孔Ｉ−からなる３連孔叫を掘削すると共に
、セメント及び水の混合液からなるセメントミルクを上
記ロッド（６）−内を経てロッド（６１−下端から整孔
（ロ）−内に注入し一該セメントミルクと整孔内の掘削
土砂とを攪拌刃＋７１−−一により攪拌混合してソイル
セメント（至）を形成し、次に上記多軸攪拌掘削機を引
き上げ、そして先行の３連孔＋、１２１の側端の整孔ａ
＋）と一部ラップする新たな３連孔叫を掘削すると共に
ソイルセメントを形成し、以下同様に第２図示のように
所望長さの連続一孔を形成する。Next, the first invention of the present application will be explained. As shown in Figure 9, a large number of stirring blades (7) are provided on the outer peripheral surface of the lower part of the hollow rod (6) at regular intervals in the longitudinal direction and protrude in the radial direction, and a digging blade is provided at the lower end of the rod (6). (8) Three of the stirring drilling rods (5) provided with - are placed in parallel to each other and adjacent stirring drilling rods (51, stirring blades of (51) (n =
First, using a multi-shaft agitation excavator connected to the output shaft wheels - and (7) - with their agitation diameters partially concave,
As shown in the first diagram, three continuous holes consisting of three continuous circular holes I- are sequentially drilled in a partially lapped state, and cement milk consisting of a mixture of cement and water is poured into the rod (6). ) through the inside of the rod (61- from the lower end of the hole (b) -) and mix the cement milk and the excavated soil in the hole with agitation blade +71-1 to form soil cement (to). Next, the multi-shaft agitation excavator was pulled up, and the preceding three consecutive holes +, hole a at the side end of 121 were drilled.
+), a new three-hole hole that partially overlaps is drilled and soil cement is formed, and a continuous hole of the desired length is formed in the same manner as shown in the second figure.
次に、上記ソイルセメント（至）の硬化前に％Ｊ連連孔
円内ソイルセメント内に第５１乙図の矢板（１）を、そ
の支柱部（２１、＋２１’が整孔１つをはさんだ左右型
孔（ｉｌｌ、＋１１）内に位置するように挿入し、つい
でその隣りの３連孔叫内に新たな矢板（１）を、その継
手部（４）を先行矢板の継手部（４）′に係合しつつ挿
入し、以下同様に矢板（１）−を順次係合しつつ挿入す
る。Next, before the soil cement (to) hardens, the sheet pile (1) shown in Fig. Insert the new sheet pile (1) so that it is located in the left and right type holes (ill, +11), then insert the new sheet pile (1) into the adjacent three-hole hole, and insert the joint part (4) of the new sheet pile into the joint part (4) of the preceding sheet pile. ', and then the sheet piles (1)- are sequentially engaged and inserted in the same manner.
次に、上記ソイルセメント（至）の硬化によりソイルセ
メント壁が形成された後、第を図示のように該ソイルセ
メントａの上端から所定高さまで、即ち止水板部（３）
−の下端から／〜、２１！ｌ上の位置まで地盤を開削Ｉ
ＭＪしてソイルセメント壁面の上部ｆｉ−ｇ出させる。Next, after the soil cement wall is formed by hardening of the soil cement (to), the third wall is moved from the upper end of the soil cement a to a predetermined height as shown in the figure, that is, the water stop plate part (3).
- from the lower end/~, 21! Excavate the ground to the position above I
MJ to expose the upper part of the soil cement wall.
本願発明に使用される矢板は、上剥の罐が、第７図示の
ようにＨ形鋼の支柱部（２ａ） 、（２’ａ）を止水板
部（３ａ）で接続すると共に、一方の支柱部（２ａ）の
Ｈ形溝を継手部（４＆）とし、他方の支柱部＜２′＆＞
に横断面で字形の継手部（４’ａ） ｔ−突設した矢板
（ｌａ）や、第ざ図示のようにＣ形鋼の支柱部（２ｂ）
とＨ形鋼の支柱部（２’ｂ）を止水板部（３ｂ）で接続
し、一方の支柱部（２ｂ）の０形溝を継手部（４ｂ）に
、他方の支柱部（２’ｂ）のＨ形の一方の７ラング部を
継手部（４’ｂ）にした矢板（ｌｂ）等を使用すること
もできる。In the sheet pile used in the present invention, the top-peeled can connects the H-beam steel struts (2a) and (2'a) with the water stop plate part (3a) as shown in Figure 7; The H-shaped groove of the support section (2a) is used as the joint section (4&), and the other support section <2'&>
A joint part (4'a) that is shaped like a letter in cross section (4'a), a protruding sheet pile (la), or a C-shaped steel column (2b) as shown in the diagram.
and the H-beam steel strut (2'b) are connected by the water stop plate (3b), and the O-shaped groove of one strut (2b) is connected to the joint (4b), and the other strut (2' It is also possible to use a sheet pile (lb) in which one of the 7 rung parts of the H shape in b) is used as a joint part (4'b).
本願第１発明の止水壁造成工法によれば、従来の鋼矢板
を使用した止水壁造成工法に比較し、使用する矢板の止
水板部の巾に相当する範囲では矢板の建込みを省略する
ことができるから、造成作業の能率向上を実現すること
ができるのである。According to the water-stop wall construction method of the first invention of the present application, compared to the conventional water-stop wall construction method using steel sheet piles, sheet piles can be built in an area corresponding to the width of the water-stop plate portion of the sheet piles used. Since it can be omitted, it is possible to improve the efficiency of the construction work.
本願第２発明の矢板は、面皮柱部を＋ＪｉＪ間隔に離し
、面皮柱部間を止水板部で接続したから、材料が大巾に
節減でき、しかも上記止水板部は両支柱部間の上端から
開削高さよりも適宜下位までの高さで、それ以下の部分
は除いであるから〜上記材料節減効果がさらに大きいの
である。In the sheet pile of the second invention of the present application, the facing pillar parts are spaced apart by +JiJ intervals and the facing pillar parts are connected by the water stop plate part, so the material can be greatly saved, and the water stop plate part is between both the pillar parts. Since the height from the upper end to an appropriate lower level than the cutting height is excluded, the above-mentioned material saving effect is even greater.
図面は本願発明の実施例を示し、第７、コ、３．１１図
は第１発明の工法の工程を示す各路線図、第Ｓ図は第２
発明の矢板の平面図、第３図は同上一部省略正面図、第
７、ざ図は矢板の他の実施例の各平面図、第９図は使用
する多軸攪拌掘削機の要部の正面図である。
／、ム、／ｂ ・・・矢板、２．２’ 、 ａｈａ、
２’ａ、 、２ｂ、 ２’ｂ・・・支柱部、３、Ｊａ、
ｊｂ−止水板部、＜ｚ、 ＋’、ｌＩａ。
＃’ａ、袖、！’ｂ ・・・継手部、／／−Ｆｌｌ形孔
孔 ／２−・・３連孔、 １３・・・ソイルセメント。
特許出願大河 合 喜 彦
（、；’ Ｈ，ｉ、ｊ−、−、＋−＋
第１図
２
唱
上 １ユ
第７１１
想The drawings show examples of the present invention, Figures 7, C, and 3.11 are route maps showing the steps of the construction method of the first invention, and Figure S is the route map of the second invention.
A plan view of the sheet pile of the invention, FIG. 3 is a partially omitted front view of the same as above, FIG. 7 is a plan view of other embodiments of the sheet pile, and FIG. It is a front view. /, mu, /b ... Sheet pile, 2.2', aha,
2'a, , 2b, 2'b... Support section, 3, Ja,
jb-water stop plate part, <z, +', lIa. ＃'a, sleeve,! 'b...Joint part, //-Fll-shaped hole /2-...3 consecutive holes, 13...Soil cement. Patent application Yoshihiko Okawa (, ;' H, i, j-, -, +-+
Claims (2)
うなる連続孔を形成すると共に、該連続 ｊ孔内にセメ
ント質液を注入して連続孔内の掘削土砂と混合してソイ
ルセメントを形成し、所定間隔をあけて平行する２本の
支柱部と、両支柱部間に接続され豆皮柱部のほぼ上端か
ら所定開削高さよりも適宜下位まで延長する止水板部と
、上記両支柱部に設けた継手部とからなる矢板の多数枚
を、上記ソイルセメント硬化前に上記連続孔のフィルセ
メント中に順次継手部を保合しつつ挿入し、 上記ソイルセメント硬化によりソイルセメント壁形成後
、該ソイルセメント壁の上端から所定開削高さまで地盤
を開削してソイルセメント壁面上部を露出させた、 止水壁造成工法。(1) Sequentially form a continuous hole consisting of multiple circular tibia holes in a partially wrapped state, and inject cement liquid into the continuous hole and mix it with the excavated soil in the continuous hole to form soil cement. A water stop plate part connected between the two pillar parts and extending from approximately the upper end of the bean skin pillar part to an appropriate level lower than the predetermined excavation height; A large number of sheet piles each consisting of a joint part provided at a support column are inserted into the fill cement of the continuous hole in sequence while holding the joint parts together before the soil cement hardens, and the soil cement wall is formed by hardening the soil cement. After that, the ground is excavated from the upper end of the soil cement wall to a predetermined excavation height to expose the upper part of the soil cement wall surface.
記両支柱部間に接続され豆皮柱部のほぼ上端から所定開
削高さよりも適宜下位まで延長する止水゛板部と、上記
両支柱部に設けた互に係合可能の継手部とから構成され
る矢板。(2) two pillars parallel to each other with a predetermined interval; a water stop plate connected between the two pillars and extending from approximately the upper end of the bean skin pillar to an appropriate point below the predetermined excavation height; A sheet pile composed of joint parts that are provided on both of the above-mentioned support pillar parts and can be engaged with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16759383A JPS6062326A (en) | 1983-09-13 | 1983-09-13 | Formation work of cut-off wall and sheet pile therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16759383A JPS6062326A (en) | 1983-09-13 | 1983-09-13 | Formation work of cut-off wall and sheet pile therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6062326A true JPS6062326A (en) | 1985-04-10 |
Family
ID=15852633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16759383A Pending JPS6062326A (en) | 1983-09-13 | 1983-09-13 | Formation work of cut-off wall and sheet pile therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6062326A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995030056A1 (en) * | 1994-04-29 | 1995-11-09 | Kuochung Chen | Tubular sheet piling and method for constructing a continuous underground wall by the piling |
| JPH11323992A (en) * | 1998-05-14 | 1999-11-26 | Kubota Corp | Underground water vein restoring construction method in steel pipe column row earth retaining wall |
| US10024017B2 (en) * | 2009-09-11 | 2018-07-17 | Pnd Engineers, Inc. | Cellular sheet pile retaining systems with unconnected tail walls, and associated methods of use |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51131118A (en) * | 1975-05-12 | 1976-11-15 | Koho Gijutsu Kaihatsu | Method of forming underground wall |
| JPS57201419A (en) * | 1981-06-02 | 1982-12-09 | Kubota Ltd | Construction of underground wall |
-
1983
- 1983-09-13 JP JP16759383A patent/JPS6062326A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51131118A (en) * | 1975-05-12 | 1976-11-15 | Koho Gijutsu Kaihatsu | Method of forming underground wall |
| JPS57201419A (en) * | 1981-06-02 | 1982-12-09 | Kubota Ltd | Construction of underground wall |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995030056A1 (en) * | 1994-04-29 | 1995-11-09 | Kuochung Chen | Tubular sheet piling and method for constructing a continuous underground wall by the piling |
| JPH11323992A (en) * | 1998-05-14 | 1999-11-26 | Kubota Corp | Underground water vein restoring construction method in steel pipe column row earth retaining wall |
| US10024017B2 (en) * | 2009-09-11 | 2018-07-17 | Pnd Engineers, Inc. | Cellular sheet pile retaining systems with unconnected tail walls, and associated methods of use |
| US11149395B2 (en) | 2009-09-11 | 2021-10-19 | Pnd Engineers, Inc. | Cellular sheet pile retaining systems with unconnected tail walls, and associated methods of use |
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