JP5831874B2 - 外径が115〜320mmの住宅用基礎杭の連結方法 - Google Patents
外径が115〜320mmの住宅用基礎杭の連結方法 Download PDFInfo
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- JP5831874B2 JP5831874B2 JP2012025850A JP2012025850A JP5831874B2 JP 5831874 B2 JP5831874 B2 JP 5831874B2 JP 2012025850 A JP2012025850 A JP 2012025850A JP 2012025850 A JP2012025850 A JP 2012025850A JP 5831874 B2 JP5831874 B2 JP 5831874B2
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- steel pipe
- pipe
- taper
- expanded
- outer diameter
- Prior art date
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- 238000000034 method Methods 0.000 title claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 74
- 239000010959 steel Substances 0.000 claims description 74
- 230000008602 contraction Effects 0.000 claims description 5
- 230000004323 axial length Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000009435 building construction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Images
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- Piles And Underground Anchors (AREA)
- Foundations (AREA)
Description
2 上側の鋼管
3 羽根
4 縮管部
5 拡管部
6 ボルト
7 貫通孔
8 貫通孔
9 ナット
10 テーパースリーブ
Claims (6)
- 基礎杭として一番下の鋼管の下端はオーガドリルと呼ばれる螺旋状の羽根を設け、当該一番下の鋼管の上端には貫通孔を両面に備えるとともに、テーパー率が拡管側のテーパー率と同じ1/100〜1/65であるテーパー状の縮管部を形成しておき、これらにつながる2番目の鋼管の端部には、貫通孔を両面に備えるとともに、テーパー率が縮管側のテーパー率と同じ1/100〜1/65であるテーパー状の拡管部を形成しておき、前記テーパー状の縮管部がこの拡管部の内側に圧入され、鋼管どうしを連結したうえ、各貫通孔から内側の縮管部にそれぞれ穴開け加工を行い、その後にこれらの貫通孔間にボルトを挿通して締結し、回転させて地中に埋め込んでいくことを特徴とする外径が115〜320mmの住宅用基礎杭の連結方法。
- 前記2番目の鋼管の他方の端部には、貫通孔を両面に備えるとともに、テーパー率が次につなげる鋼管の拡管側のテーパー率と同じ1/100〜1/65であるテーパー状の縮管部を形成し、さらに次の鋼管として、これら拡管と縮管と同じテーパー仕様を持ち、それぞれに貫通孔を両面に備える鋼管をつないでいくことを特徴とする請求項1に記載の外径が115〜320mmの住宅用基礎杭の連結方法。
- 拡管部及び縮管部の軸方向長さを、鋼管直径Dの2〜4倍としたことを特徴とする請求項1または2に記載の外径が115〜320mmの住宅用基礎杭の連結方法。
- 穴開け加工された貫通孔に、テーパースリーブを挿入したうえでボルトを貫通させることを特徴とする請求項1または2に記載の外径が115〜320mmの住宅用基礎杭の連結方法。
- 前記貫通孔を、各管部の上端及び下端から鋼管直径Dの0.5倍以上離れた位置に設けたことを特徴とする請求項1または2に記載の外径が115〜320mmの住宅用基礎杭の連結方法。
- 各鋼管は、一方の端部に拡管部が形成され、他方の端部に縮管部が形成されたものであることを特徴とする請求項1または2に記載の外径が115〜320mmの住宅用基礎杭の連結方法。
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JP2012025850A JP5831874B2 (ja) | 2012-02-09 | 2012-02-09 | 外径が115〜320mmの住宅用基礎杭の連結方法 |
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JP2012025850A JP5831874B2 (ja) | 2012-02-09 | 2012-02-09 | 外径が115〜320mmの住宅用基礎杭の連結方法 |
Publications (2)
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JP2013163890A JP2013163890A (ja) | 2013-08-22 |
JP5831874B2 true JP5831874B2 (ja) | 2015-12-09 |
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JP2012025850A Active JP5831874B2 (ja) | 2012-02-09 | 2012-02-09 | 外径が115〜320mmの住宅用基礎杭の連結方法 |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6556047B2 (ja) * | 2015-12-17 | 2019-08-07 | 日本製鉄株式会社 | 鋼管の接合構造、及び鋼管の接合方法 |
JP6589677B2 (ja) * | 2016-02-17 | 2019-10-16 | 日本製鉄株式会社 | 異径鋼管杭 |
JP6911270B2 (ja) * | 2016-04-07 | 2021-07-28 | 日之出水道機器株式会社 | 接合構造 |
WO2018214782A1 (zh) * | 2017-05-24 | 2018-11-29 | 希姆莱斯(大连)科技有限公司 | 一种球墨铸铁螺旋桩的制备工艺及采用该工艺制备的球墨铸铁螺旋桩 |
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