JP4344733B2 - 既設杭基礎構造物の耐震補強構造 - Google Patents
既設杭基礎構造物の耐震補強構造 Download PDFInfo
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- JP4344733B2 JP4344733B2 JP2006059054A JP2006059054A JP4344733B2 JP 4344733 B2 JP4344733 B2 JP 4344733B2 JP 2006059054 A JP2006059054 A JP 2006059054A JP 2006059054 A JP2006059054 A JP 2006059054A JP 4344733 B2 JP4344733 B2 JP 4344733B2
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- foundation
- ground improvement
- improvement body
- existing pile
- ground
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- 230000002787 reinforcement Effects 0.000 title claims description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 24
- 239000011150 reinforced concrete Substances 0.000 claims description 16
- 239000002689 soil Substances 0.000 claims description 13
- 239000002344 surface layer Substances 0.000 claims description 5
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- 238000009412 basement excavation Methods 0.000 description 16
- 238000010276 construction Methods 0.000 description 8
- 239000004567 concrete Substances 0.000 description 6
- 238000009415 formwork Methods 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
Images
Landscapes
- Foundations (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Description
1A 下部地盤改良体
1B 上部地盤改良体
2 連結部材
3 鉄筋コンクリート
4 ホールインアンカー
5 鉄筋
6 コンクリート
7 土
11 基礎
12 基礎フーチング
13 地中はり
21 杭地業
22 杭
23 割栗石
24 捨てコンクリート
G 地盤
GL 地表面
D1 地盤改良体用掘削箇所
D2 連結部材用掘削箇所
L 地盤改良体用掘削箇所底面の高さ位置
H 連結部材用掘削箇所底面の高さ位置
Claims (3)
- 構造物、基礎及び杭地業からなる既設杭基礎構造物において、
前記基礎の周囲を取り囲む、鋤取りにより掘削した地盤の表層部の土に固化材を添加混合したものを埋め戻して敷き均し、締め固めてなる、地盤改良体を、基礎フーチングから外方向に離間させて配設し、前記地盤改良体と前記基礎フーチングとを強固に連結する複数の連結部材を、前記基礎の周方向に離間させて横設してなることを特徴とする既設杭基礎構造物の耐震補強構造。 - 前記連結部材が鉄筋コンクリートであり、該鉄筋コンクリートの内側端を前記基礎フーチングに固定するとともに、前記鉄筋コンクリートの外側部分を前記地盤改良体中に埋没させてなることを特徴とする請求項1記載の既設杭基礎構造物の耐震補強構造。
- 前記連結部材が単又は複数の型鋼、鋼板若しくは鋼管からなる鋼材であり、該鋼材の内側端を前記基礎フーチングに固定するとともに、前記鋼材の外側部分を前記地盤改良体中に埋没させてなることを特徴とする請求項1記載の既設杭基礎構造物の耐震補強構造。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2006059054A JP4344733B2 (ja) | 2006-03-06 | 2006-03-06 | 既設杭基礎構造物の耐震補強構造 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2006059054A JP4344733B2 (ja) | 2006-03-06 | 2006-03-06 | 既設杭基礎構造物の耐震補強構造 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007239187A JP2007239187A (ja) | 2007-09-20 |
JP4344733B2 true JP4344733B2 (ja) | 2009-10-14 |
Family
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Application Number | Title | Priority Date | Filing Date |
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JP2006059054A Active JP4344733B2 (ja) | 2006-03-06 | 2006-03-06 | 既設杭基礎構造物の耐震補強構造 |
Country Status (1)
Country | Link |
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JP (1) | JP4344733B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6283537B2 (ja) * | 2014-03-01 | 2018-02-21 | 大成建設株式会社 | 液状化対策構造 |
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2006
- 2006-03-06 JP JP2006059054A patent/JP4344733B2/ja active Active
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JP2007239187A (ja) | 2007-09-20 |
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