JPH0242932U - - Google Patents
Info
- Publication number
- JPH0242932U JPH0242932U JP11799588U JP11799588U JPH0242932U JP H0242932 U JPH0242932 U JP H0242932U JP 11799588 U JP11799588 U JP 11799588U JP 11799588 U JP11799588 U JP 11799588U JP H0242932 U JPH0242932 U JP H0242932U
- Authority
- JP
- Japan
- Prior art keywords
- tip
- steel sheet
- sheet pile
- press
- pile
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims 4
- 239000011435 rock Substances 0.000 claims 1
- 238000003466 welding Methods 0.000 claims 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
Description
第１図は本考案にかかる鋼矢板の先端アタツチ
メントの一例を示す斜視図、第２図は第１図の
矢視図、第３図は第１図の刃先部２２の形状例を
示す要部断面図、第４図は鋼矢板本体に複数の超
硬合金層を形成した状態を示す要部断面図、第５
図は本考案を適用した静荷重型杭圧入引抜機の基
本的構成を示す側面図、第６図は同平面図、第７
図は従来の鋼矢板の形状及び圧入例を示す部分的
斜視図である。
１…既設杭、２…基盤、３…反力クランプ、４
…シリンダ、５…昇降体、６…杭掴み装置、７…
鋼矢板、７ｂ…鋼矢板本体、８…ガイドフレーム
、９…シリンダ、１０…前後方向摺動ブラケツト
、１１…左右方向摺動ブラケツト、１２…傾動ブ
ラケツト、２０…先端アタツチメント、２１…ア
タツチメント本体、２１ａ…セクシヨン部、２１
ｂ…圧入方向先端部、２１ｃ…基部、２２…刃先
部、２３…開先面、２４ａ，２４ｂ，２４ｃ…合
金層。
FIG. 1 is a perspective view showing an example of a tip attachment for a steel sheet pile according to the present invention, FIG. 2 is a view taken in the direction of the arrow in FIG. 1, and FIG. 3 is a main part showing an example of the shape of the cutting edge portion 22 in FIG. 4 is a cross-sectional view of main parts showing a state in which multiple cemented carbide layers are formed on the steel sheet pile body;
The figure is a side view showing the basic configuration of a static load type pile press-in/extraction machine to which the present invention is applied;
The figure is a partial perspective view showing the shape and press-fitting example of a conventional steel sheet pile. 1... Existing pile, 2... Foundation, 3... Reaction force clamp, 4
...Cylinder, 5...Elevating body, 6...Pile gripping device, 7...
Steel sheet pile, 7b...Steel sheet pile body, 8...Guide frame, 9...Cylinder, 10...Anteroposterior sliding bracket, 11...Left and right sliding bracket, 12...Tilt bracket, 20...Tip attachment, 21...Attachment main body, 21a ...Section section, 21
b... Tip in the press-fitting direction, 21c... Base, 22... Cutting edge, 23... Groove surface, 24a, 24b, 24c... Alloy layer.
Claims (1)
ダに把持されて土中に圧入、引抜されるとともに
、長手方向に沿う左右両端部に、隣接する鋼矢板
との相互連結用セクシヨン部が形成された鋼矢板
において、 前記鋼矢板の圧入方向先端部に、土中に存在す
る岩盤、石等を破壊する高硬度の刃先部を形成し
たことを特徴とする鋼矢板の先端部構造。 (2) 杭圧入引抜機に搭載されたチヤツクシリン
ダに把持されて土中に圧入、引抜されるとともに
、長手方向に沿う左右両端部に、隣接する鋼矢板
との相互連結用セクシヨン部が形成された鋼矢板
において、 前記鋼矢板の圧入方向先端部に基部が溶接固定
されるとともに、先端部に、土中に存在する岩盤
、石等を破壊する高硬度の刃先部が形成されてい
ることを特徴とする鋼矢板の先端アタツチメント
。 (3) 前記高硬度の刃先部が、超硬合金で成る請
求項１，２記載の鋼矢板の先端部構造及び先端ア
タツチメント。 (4) 前記高硬度の刃先部が、鋼矢板もしくは先
端アタツチメントに直接溶接される比較的硬度の
低い合金層と、鋼矢板もしくは先端アタツチメン
トの圧入方向先端部に溶接される超硬合金層との
複数の高硬度合金層で成る請求項１，２，３記載
の鋼矢板の先端部構造及び先端アタツチメント。 (5) 圧入方向先端部に形成された前記刃先部に
、円弧状の膨出部を形成して成る請求項１，２，
３，４記載の鋼矢板の先端部構造及び先端アタツ
チメント。 (6) 前記先端アタツチメントの基部に、鋼矢板
の圧入方向先端部に溶接固定するための開先面を
形成して成る請求項２，３，４，５記載の鋼矢板
の先端アタツチメント。[Scope of Claim for Utility Model Registration] (1) The pile is held by a chuck cylinder mounted on a pile press-in and pull-out machine, press-fitted into the soil, and pulled out. A steel sheet pile in which a section for interconnection is formed, characterized in that a high-hardness cutting edge part that destroys bedrock, stones, etc. existing in the soil is formed at the tip end of the steel sheet pile in the press-fitting direction. Structure of the tip of the sheet pile. (2) It is gripped by a chuck cylinder mounted on a pile press-in and pull-out machine and is pressed into the soil and pulled out, and sections for interconnection with adjacent steel sheet piles are formed at both left and right ends along the longitudinal direction. In the steel sheet pile, the base is welded and fixed to the tip of the steel sheet pile in the press-fit direction, and a highly hard cutting edge that destroys rock, stones, etc. existing in the soil is formed at the tip. A steel sheet pile tip attachment featuring: (3) The steel sheet pile tip structure and tip attachment according to claims 1 and 2, wherein the high-hardness cutting edge is made of cemented carbide. (4) The high-hardness cutting edge is made of a relatively low-hardness alloy layer that is directly welded to the steel sheet pile or the tip attachment, and a cemented carbide layer that is welded to the tip of the steel sheet pile or the tip attachment in the press-fitting direction. The steel sheet pile tip structure and tip attachment according to claims 1, 2, and 3, comprising a plurality of high-hardness alloy layers. (5) An arc-shaped bulge is formed in the cutting edge portion formed at the tip end in the press-fitting direction.
3. The tip structure and tip attachment of the steel sheet pile described in 3 and 4. (6) The tip attachment for a steel sheet pile according to any of claims 2, 3, 4, and 5, wherein a groove surface for welding and fixing to the tip of the steel sheet pile in the press-fitting direction is formed at the base of the tip attachment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11799588U JPH0428933Y2 (en) | 1988-09-07 | 1988-09-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11799588U JPH0428933Y2 (en) | 1988-09-07 | 1988-09-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0242932U true JPH0242932U (en) | 1990-03-26 |
| JPH0428933Y2 JPH0428933Y2 (en) | 1992-07-14 |
Family
ID=31361958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11799588U Expired JPH0428933Y2 (en) | 1988-09-07 | 1988-09-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0428933Y2 (en) |
-
1988
- 1988-09-07 JP JP11799588U patent/JPH0428933Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0428933Y2 (en) | 1992-07-14 |
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