JP5697248B2 - 変位低減地盤改良工法 - Google Patents
変位低減地盤改良工法 Download PDFInfo
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- JP5697248B2 JP5697248B2 JP2011113211A JP2011113211A JP5697248B2 JP 5697248 B2 JP5697248 B2 JP 5697248B2 JP 2011113211 A JP2011113211 A JP 2011113211A JP 2011113211 A JP2011113211 A JP 2011113211A JP 5697248 B2 JP5697248 B2 JP 5697248B2
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- 238000000034 method Methods 0.000 title claims description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 123
- 238000010276 construction Methods 0.000 claims description 84
- 239000011148 porous material Substances 0.000 claims description 58
- 238000006073 displacement reaction Methods 0.000 claims description 41
- 230000002411 adverse Effects 0.000 claims description 10
- 239000003673 groundwater Substances 0.000 claims description 6
- 239000004576 sand Substances 0.000 description 20
- 238000005056 compaction Methods 0.000 description 7
- 230000003068 static effect Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Description
Claims (3)
- 干満による水位変化の起こる海岸や河口や湖沼における岸壁や護岸近傍の地盤を地盤改良する際、
干潮時には施工時に発生する過剰間隙水圧の影響を岸壁や護岸などの対象構造物が受けないようにすることが可能となる距離まで海側から離れた箇所で地盤改良の施工を行い、
満潮時には海側から陸側に向かう圧力の合力で、過剰間隙水圧や残留水圧により起こる地盤の変位を相殺することが可能となる距離まで海側に近付いた箇所で地盤改良の施工を行うことで、
干満による水位変化に応じて施工する箇所を変更することにより、施工時に起こる地盤の変位を低減して岸壁や護岸などの対象構造物に悪影響が及ばないようにすることを特徴とする変位低減地盤改良工法。 - 地盤改良する岸壁や護岸近傍の地盤の残留水位を、地下水位低下工法を用いて干潮時の水位である低水位以下にすることを特徴とする請求項1記載の変位低減地盤改良工法。
- 地盤改良する岸壁や護岸近傍の地盤において、過剰間隙水圧比と水平距離との関係に基づき距離減衰する過剰間隙水圧を求めて、この求めた距離減衰する過剰間隙水圧に基づいて、岸壁や護岸などの対象構造物から施工する箇所までの距離である施工距離を決定することを特徴とする請求項1又は2記載の変位低減地盤改良工法。
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JP2011113211A JP5697248B2 (ja) | 2011-05-20 | 2011-05-20 | 変位低減地盤改良工法 |
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JP2011113211A JP5697248B2 (ja) | 2011-05-20 | 2011-05-20 | 変位低減地盤改良工法 |
Publications (2)
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JP2012241433A JP2012241433A (ja) | 2012-12-10 |
JP5697248B2 true JP5697248B2 (ja) | 2015-04-08 |
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JP2011113211A Active JP5697248B2 (ja) | 2011-05-20 | 2011-05-20 | 変位低減地盤改良工法 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11884860B2 (en) | 2019-12-20 | 2024-01-30 | Fudo Construction Inc. | Fluidized sand and method of density control |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103306266B (zh) * | 2013-06-04 | 2015-12-09 | 北京航空航天大学 | 一种用于超盐渍土或强盐渍土的地下增密胶结盐渍土柱及其施工方法 |
JP6432987B2 (ja) * | 2015-10-27 | 2018-12-05 | 株式会社不動テトラ | 軟弱地盤の改良方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3653551B2 (ja) * | 2001-06-28 | 2005-05-25 | 独立行政法人港湾空港技術研究所 | 裏込土の吸出防止工法 |
JP2003306920A (ja) * | 2002-04-15 | 2003-10-31 | Pacific Consultants Co Ltd | 鋼矢板式岸壁構造 |
JP4405996B2 (ja) * | 2006-10-12 | 2010-01-27 | 株式会社竹中土木 | 混合処理工法における施工管理方法及びその装置 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US11884860B2 (en) | 2019-12-20 | 2024-01-30 | Fudo Construction Inc. | Fluidized sand and method of density control |
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