JPS6039812B2 - Steel sheet pile construction method - Google Patents
Steel sheet pile construction methodInfo
- Publication number
- JPS6039812B2 JPS6039812B2 JP14638581A JP14638581A JPS6039812B2 JP S6039812 B2 JPS6039812 B2 JP S6039812B2 JP 14638581 A JP14638581 A JP 14638581A JP 14638581 A JP14638581 A JP 14638581A JP S6039812 B2 JPS6039812 B2 JP S6039812B2
- Authority
- JP
- Japan
- Prior art keywords
- steel sheet
- pile
- sheet pile
- sheet piles
- construction method
- 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.)
- Expired
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
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)
- Bulkheads Adapted To Foundation Construction (AREA)
Description
【発明の詳細な説明】 本発明は鋼矢板の施工法に関するものである。[Detailed description of the invention] The present invention relates to a construction method for steel sheet piles.
従釆、鋼矢板を打ち込むに際して、騒音振動を避けるた
めに、アースオーガで予掘りして杭を建て込み、ドロッ
プハンマーなどで鋼矢板を打設したり、或いはジェット
水流で先端の土を洗いながら打ち込む方法がとられてい
る。しかしながら、前者の方法では、脱水固化現象が生
じやすいプレパクトモルタル杭であるために鋼矢板を精
度良く打ち込むには一定の限界があり、また騒音振動も
十分避けることができなかった。後者の方法では、鋼矢
板背面に空洞や砂盤のゆるみが生じやすく、そのために
十分な止水性を確保できないことがあった。本発明の目
的は、鋼矢板を低騒音低振動で精度良く打ち込むことで
あり、他の目的は鋼矢板の背面に空洞や砂盤のゆるみの
発生を防止して十分な止水性を確保することであり、さ
らに他の目的は鋼矢板の引き抜き抵抗を低減することに
ある。When driving steel sheet piles, in order to avoid noise and vibration, you can pre-dug with an earth auger and erect the piles, and then drive the steel sheet piles with a drop hammer, or wash the soil at the tip with a jet of water. A method of typing is being used. However, in the former method, since the pre-packed mortar piles are prone to dehydration and solidification, there are certain limits to how accurately the steel sheet piles can be driven into the pile, and noise and vibration cannot be sufficiently avoided. With the latter method, cavities and loose sand plates tend to occur on the back of the steel sheet piles, and as a result, sufficient water-tightness may not be ensured. The purpose of the present invention is to drive steel sheet piles with high precision with low noise and low vibration.Another purpose of the present invention is to prevent the occurrence of cavities and loosening of sand plates on the back side of steel sheet piles and ensure sufficient water-stopping properties. Another objective is to reduce the pull-out resistance of the steel sheet pile.
以下本発明の一実施例を図面を参照して説明する。まず
、第１，２図に示すように、アースオーガーにより、ベ
ントナィト，セメントおよび水を混合したセメントペー
ストをオーガヘツド先端から噴射しながら所定の深度ま
で杭孔２を削孔し、削孔後アースオーガを正逆回させつ
つ上下動を繰り返して、セメントペーストと掘削士砂と
を燈拝してソィルモルタル杭３を形成する。An embodiment of the present invention will be described below with reference to the drawings. First, as shown in Figures 1 and 2, a pile hole 2 is drilled to a predetermined depth using an earth auger while spraying cement paste, which is a mixture of bentonite, cement, and water, from the tip of the auger head. The soil mortar pile 3 is formed by repeating up and down movements while rotating forward and backward to mix cement paste and excavator's sand.
そしてアースオーガ１の最終引き上げ時には、オーガの
回転を止めたまま、高圧ポンプを利用して、第３図イ，
口に示すようにオーガヘツドの外面に設けてある一対の
噴射ノズルからのウオータジェットにより杭外周部を削
孔して、杭接合部４，４を形成する。削孔後、第４図イ
，口に示すようにソィルモルタル杭３内に、鋼矢板５を
パイルドライバ−又はドロップハンマーなどにより所定
深度まで圧入する。When the earth auger 1 is finally raised, the high pressure pump is used while the auger is stopped rotating.
As shown in the figure, a hole is drilled in the outer periphery of the pile using a water jet from a pair of spray nozzles provided on the outer surface of the auger head to form pile joint parts 4,4. After drilling, the steel sheet pile 5 is press-fitted into the soil mortar pile 3 to a predetermined depth using a pile driver, drop hammer, etc., as shown in FIG.
この圧入に際して、鋼矢板５の両端の接続部６，６ａを
接合部４，４に対応位置させてから打ち込み作業を行う
。このために、鋼矢板５の圧入が円滑に行える。上記と
同様の方法で、鋼矢板５もこ連続して他の鋼矢板５ａ，
５ｂ…を、順次先行する鋼矢板の向きとは逆にして施工
して行く（第５〜７図）。During this press-fitting, the driving work is performed after the connecting parts 6, 6a at both ends of the steel sheet pile 5 are positioned corresponding to the joint parts 4, 4. For this reason, the steel sheet pile 5 can be press-fitted smoothly. In the same manner as above, the steel sheet pile 5 is also successively added to other steel sheet piles 5a,
5b... are constructed in the opposite direction to the direction of the preceding steel sheet piles (Figures 5 to 7).
鋼矢板５ａの施工において、アースオーガ１を引き上げ
る時、噴射ノズルの位置を第３図イ，口の位置とは逆向
きにして、杭３ａの外周部をゥオ−タージェットにより
削孔すると、この杭３ａが先行の杭３と接合部４を介し
て結合する（第６図イ，口）。そして鋼矢板５と鋼矢板
５ａとは、第７図に示すように接続部６ａと６との係合
により接続する。鋼矢板５，５ａの接続部６ａ，６にソ
ィルモルタルが充填されて、鋼矢板５ａの挿入が困難で
あると予想される場合には、鋼矢板５の接続部６ａにグ
リースなどの滑り剤を詰めておくのが望ましい。また杭
３ａに隣接する杭３ｂ内に鋼矢板５ｂを打設する場合に
は、先行の鋼矢板５の向きと同じ向きにして打ち込む（
第７図）。In the construction of steel sheet piles 5a, when pulling up the earth auger 1, the position of the injection nozzle is reversed from the position of the opening in Fig. 3A, and a hole is drilled in the outer periphery of the pile 3a with a water jet. This pile 3a is connected to the preceding pile 3 via the joint 4 (FIG. 6, A, and mouth). The steel sheet pile 5 and the steel sheet pile 5a are connected by engagement of the connecting portions 6a and 6, as shown in FIG. If the connecting parts 6a, 6 of the steel sheet piles 5, 5a are filled with soil mortar and it is expected that it will be difficult to insert the steel sheet piles 5a, fill the connecting parts 6a of the steel sheet piles 5 with a slip agent such as grease. It is desirable to keep it. In addition, when driving the steel sheet pile 5b into the pile 3b adjacent to the pile 3a, drive it in the same direction as the preceding steel sheet pile 5 (
Figure 7).
さらに、鋼矢板５，５ａ，５ｂ…を打設した後、現地盤
と同程度の粘着力が期待できる強度を有する均一な泥水
モルタルを、鋼矢板５，５ａ，５ｂの背面又は内面に予
め取り付けてあるパイプ７を通して、鋼矢板背面又は内
面側に注入する。Furthermore, after driving the steel sheet piles 5, 5a, 5b..., uniform muddy mortar with a strength that can be expected to have the same adhesive force as the on-site slab is attached in advance to the back or inner surface of the steel sheet piles 5, 5a, 5b. Inject into the back or inner surface of the steel sheet pile through the pipe 7 provided.
これは、ソィルモルタル杭は杭孔内の縄梓方式で形成す
るので、不均一であり、鋼矢板との摩擦抵抗が大きすぎ
た場合、鋼矢板５，５ａ，５ｂの引き抜きが不可能にな
る場合が生じることを防ぐためである。泥水モルタルに
よれば、プレパクトモルタルに比較して脱水固化現象が
生じもこくいので、鋼矢板５，５ａ，５ｂの引き抜き抵
抗の低減が可能である。また現地盤と同程度の強度であ
れば、周辺地盤に与える影響は少ない。構築物の建造な
ど、所定の作業終了後、鋼矢板５，５ａ，５ｂ…を順次
引き抜く。This is because soil mortar piles are formed using the rope casing method inside the pile hole, so they are uneven, and if the frictional resistance with the steel sheet piles is too large, it may become impossible to pull out the steel sheet piles 5, 5a, and 5b. This is to prevent this from occurring. According to muddy mortar, the dehydration and solidification phenomenon is less likely to occur compared to prepact mortar, so it is possible to reduce the pulling resistance of the steel sheet piles 5, 5a, and 5b. Furthermore, if the strength is comparable to that of the local ground, there will be little impact on the surrounding ground. After completing a predetermined work such as building a structure, the steel sheet piles 5, 5a, 5b, etc. are pulled out one after another.
この場合、引き抜き抵抗が大きい場合には、鋼矢板に取
り付けてあるパイプ７でウオータージェットを併用して
引き抜く。なお、このパイプ７を、鋼矢板５，５ａ，５
ｂの引き抜いた跡詰めクラウト用に利用することも可能
である。各杭の接合部６，６ａは上例ではほぼ１５２０
なす位置関係にあるが、鋼矢板の形状に応じて、例えば
対向位置関係に設定してもよい。In this case, if the pulling resistance is large, the pipe 7 attached to the steel sheet pile is used in combination with a water jet to pull it out. In addition, this pipe 7 can be used as steel sheet piles 5, 5a, 5
It is also possible to use it for filling the kraut that was pulled out in b. The joint portions 6 and 6a of each pile are approximately 1520 mm in the above example.
However, depending on the shape of the steel sheet pile, they may be set, for example, in a facing positional relationship.
以上説明したように本発明によれば、ソィルモルタル杭
には杭接合部が形成されかつ脱水固化現象が生じにくい
ので、鋼矢板の庄入が円滑に行え、鉛直に正しく打ち込
めて建込み精度を向上させることができかつ低騒音低振
動で行える。As explained above, according to the present invention, pile joints are formed in soil mortar piles, and dehydration and solidification phenomena are less likely to occur, so steel sheet piles can be inserted smoothly and can be driven vertically and correctly, improving erection accuracy. It can be done with low noise and low vibration.
またウオータージェット工法のような鋼矢板背面に空洞
や砂盤のゆるみが生せず、止水性を十分確保できる。さ
らに鋼矢板の引き抵抗を抵滅することができる。Additionally, unlike the water jet construction method, there is no cavity or loosening of the sand plate on the back of the steel sheet pile, ensuring sufficient water-tightness. Furthermore, the pulling resistance of steel sheet piles can be overcome.
図面は本発明の−実施例を示すもので、第１図及至第６
図は鋼矢板の施工順序を示す説明図、第７図は鋼矢板の
施工状態を示す断面図である。
１・…”アースオーガ、３，３ａ，３ｂ・・・・・・ソ
イルモルタプ杭、４・・・・・・杭接合部、５，５ａ，
５ｂ・・・・・・鋼矢板、６，６ａ・・・接続部、７・
・・・・・パイプ。
第１図策２図
第３図
第４図
第５図
第６図
第７図The drawings show embodiments of the present invention, and FIGS.
The figure is an explanatory diagram showing the order of construction of the steel sheet piles, and FIG. 7 is a sectional view showing the construction state of the steel sheet piles. 1..." Earth auger, 3, 3a, 3b... Soil mortap pile, 4... Pile joint, 5, 5a,
5b... Steel sheet pile, 6, 6a... Connection part, 7.
·····pipe. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7
Claims (1)
ースオーガの引き上げ時にウオータージエツトなどによ
り杭外周部を削孔して杭接合部を形成し、その後上記杭
接合部に鋼矢板の接続部を対応位置させて、この鋼矢板
を杭内に圧入し、圧入後鋼矢板に取り付けてあるパイプ
より泥水モルタルを杭内に注入することを特徴とする鋼
矢板の施工法。1. Form a soil mortar pile with an earth auger, and when pulling up the earth auger, drill a hole on the outer periphery of the pile using water jet, etc. to form a pile joint, and then attach the joint of the steel sheet pile to the pile joint at the corresponding position. This steel sheet pile construction method is characterized in that the steel sheet pile is press-fitted into the pile, and after the press-fitting, muddy water mortar is injected into the pile from a pipe attached to the steel sheet pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14638581A JPS6039812B2 (en) | 1981-09-18 | 1981-09-18 | Steel sheet pile construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14638581A JPS6039812B2 (en) | 1981-09-18 | 1981-09-18 | Steel sheet pile construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5850222A JPS5850222A (en) | 1983-03-24 |
| JPS6039812B2 true JPS6039812B2 (en) | 1985-09-07 |
Family
ID=15406499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14638581A Expired JPS6039812B2 (en) | 1981-09-18 | 1981-09-18 | Steel sheet pile construction method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6039812B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT414258B (en) * | 2002-09-19 | 2006-10-15 | Sigma Consult Gmbh | DRILL HEAD |
| JP5068678B2 (en) * | 2008-02-05 | 2012-11-07 | 伸一 山下 | Earth retaining method and excavation member for earth retaining member standing construction used therefor |
| JP5747852B2 (en) * | 2012-03-28 | 2015-07-15 | 新日鐵住金株式会社 | Construction method of steel sheet pile foundation |
| CN109944261A (en) * | 2017-12-21 | 2019-06-28 | 浙江兴土桥梁临时钢结构工程有限公司 | In the method for big partial size boulder bed riverbed cofferdam construction |
-
1981
- 1981-09-18 JP JP14638581A patent/JPS6039812B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5850222A (en) | 1983-03-24 |
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