JP4490191B2 - 拡径管杭を使用した基礎構築方法 - Google Patents
拡径管杭を使用した基礎構築方法 Download PDFInfo
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- JP4490191B2 JP4490191B2 JP2004193097A JP2004193097A JP4490191B2 JP 4490191 B2 JP4490191 B2 JP 4490191B2 JP 2004193097 A JP2004193097 A JP 2004193097A JP 2004193097 A JP2004193097 A JP 2004193097A JP 4490191 B2 JP4490191 B2 JP 4490191B2
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- Prior art keywords
- pile
- diameter
- expanded
- steel pipe
- ground
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- Piles And Underground Anchors (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Foundations (AREA)
Description
財団法人日本建築センター刊行カタログ・2002年版
12 先端部
13 異径鋼管
14 拡大径
16 縮小径
18 羽根
19 補足部
20 鋼管
21 頭部
22 接続金具
23 補強板
24 抜止板
31 柱
32 架台
36 布基礎
41 土留壁
43 床盤
Claims (2)
- 拡径管杭(11)を所要の地盤に貫入した後、金属製杭頭部(21)に上物(31,33)の金属製下端部又は金属製架台(32)を直接連結することにより基礎を構築する方法において、
前記拡径管杭(11)が、
鋼管を上下方向に延在してなる補足部分(19)の下端に、掘削刃(17)および螺旋状の羽根(18)を具えた先端部分(12)を接続した鋼管杭であって、
前記先端部分(12)は上方から下方に向かうにつれて内径が拡径せる異径鋼管(13)であり、該先端部分(12)の上下方向中程を緩曲面で繋いで拡径し、
前記先端部分(12)のうち上端側の部位を前記補足部分(19)と同一径として、該補足部分(19)の下端に継ぎ足すよう前記接続を行ったものであることを特徴とする、拡径管杭を使用した基礎構築方法。 - 前記異径鋼管(13)の口径比が、1.2〜2.5の範囲から選択したものである請求項1記載の方法。
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JP2004193097A JP4490191B2 (ja) | 2004-06-30 | 2004-06-30 | 拡径管杭を使用した基礎構築方法 |
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JP2004193097A JP4490191B2 (ja) | 2004-06-30 | 2004-06-30 | 拡径管杭を使用した基礎構築方法 |
Publications (2)
Publication Number | Publication Date |
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JP2006016774A JP2006016774A (ja) | 2006-01-19 |
JP4490191B2 true JP4490191B2 (ja) | 2010-06-23 |
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JP2004193097A Active JP4490191B2 (ja) | 2004-06-30 | 2004-06-30 | 拡径管杭を使用した基礎構築方法 |
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JP (1) | JP4490191B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6072187B2 (ja) * | 2014-09-30 | 2017-02-01 | 株式会社シグマベース | 鋼管杭 |
JP6118487B2 (ja) * | 2015-10-03 | 2017-04-19 | 株式会社ビル技研 | スクリュー杭用浮沈防止パーツ、スクリュー杭、及びスクリュー杭を用いた基礎杭の施工方法 |
JP6667276B2 (ja) * | 2015-12-04 | 2020-03-18 | 日本製鉄株式会社 | 砕石杭の施工方法、砕石杭の施工用治具および砕石杭の施工システム |
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