JP2017155506A - 薬液注入工法の施工管理方法 - Google Patents
薬液注入工法の施工管理方法 Download PDFInfo
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- JP2017155506A JP2017155506A JP2016040675A JP2016040675A JP2017155506A JP 2017155506 A JP2017155506 A JP 2017155506A JP 2016040675 A JP2016040675 A JP 2016040675A JP 2016040675 A JP2016040675 A JP 2016040675A JP 2017155506 A JP2017155506 A JP 2017155506A
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- 239000000126 substance Substances 0.000 title claims abstract description 201
- 238000002347 injection Methods 0.000 title claims abstract description 149
- 239000007924 injection Substances 0.000 title claims abstract description 149
- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000009430 construction management Methods 0.000 title claims abstract description 15
- 239000000243 solution Substances 0.000 claims abstract description 171
- 239000007788 liquid Substances 0.000 claims abstract description 155
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 230000008595 infiltration Effects 0.000 claims description 37
- 238000001764 infiltration Methods 0.000 claims description 37
- 230000035515 penetration Effects 0.000 claims description 24
- 238000007711 solidification Methods 0.000 abstract description 20
- 230000008023 solidification Effects 0.000 abstract description 20
- 238000010276 construction Methods 0.000 abstract description 18
- 238000003672 processing method Methods 0.000 abstract description 8
- 238000003908 quality control method Methods 0.000 description 5
- 238000005553 drilling Methods 0.000 description 4
- 239000013535 sea water Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000008155 medical solution Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 150000008043 acidic salts Chemical class 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Images
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
Description
2 地盤
3 薬液浸透域
4 拡張液浸透域
5 外殻固化体
6a,6b 薬液注入孔
7 ストレーナ
8 計測器
10 注入液流路
11 注液ノズル
12 パッカー
13 加圧送液装置
Claims (3)
- 改良しようとする地盤中に互いに間隔を置いて多数の注入位置を設定し、該注入位置より地盤に所定量の地盤固化用の薬液を注入し、注入位置を中心にして地盤空隙内に前記薬液を浸透させた薬液浸透域を形成した後、その注入位置より地盤に薬液浸透域拡張液を注入し、該注入位置を中心に前記薬液浸透域を拡張させるとともに、該薬液浸透域内に薬液浸透域拡張液が地盤空隙に浸透した拡張液浸透域を形成することにより、前記各薬液浸透域が互いに連続して固化してなる外殻固化体を形成し、且つ、該外殻固化体内に前記各拡張液浸透域が互いに独立して散在せしめる薬液注入工法の施工管理方法において、
前記薬液及び前記薬液浸透域拡張液を注入する注入位置の周囲であって、前記薬液浸透域の拡張予定半径より外側に拡張液検知手段を配置しておき、
該拡張液検知手段が前記薬液浸透域拡張液を検知した際には、前記薬液浸透域拡張液が前記薬液浸透域から漏れ出したと判断し、その判断に基づき薬液及び薬液浸透域拡張液の注入を管理することを特徴とする薬液注入工法の施工管理方法。 - 地盤中に互いに間隔を置いて削孔された複数の薬液注入孔にその孔軸方向に互いに間隔をおいて各注入位置を設け、薬液及び薬液浸透域拡張液の注入作業を互いに隣り合う薬液注入孔で交互に行うようにし、且つ、一方の薬液注入孔において薬液及び薬液浸透域拡張液の注入作業を行い、他方の薬液注入孔に前記拡張液検知手段を設けておく請求項1に記載の薬液注入工法の施工管理方法。
- 前記拡張液検知手段は、電気伝導度又は塩分濃度を計測する計測器を備え、該計測器により計測された前記薬液浸透域拡張液注入前後の電気伝導度差又は塩分濃度差に基づき薬液浸透域拡張液を検知する請求項1又は2に記載の薬液注入工法の施工管理方法。
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JP2017155506A true JP2017155506A (ja) | 2017-09-07 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018199896A (ja) * | 2017-05-25 | 2018-12-20 | 日本基礎技術株式会社 | 薬液注入装置及び地盤注入工法 |
JP2020033758A (ja) * | 2018-08-30 | 2020-03-05 | 日特建設株式会社 | パッカー及び当該パッカーを用いる工法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59122618A (ja) * | 1982-12-28 | 1984-07-16 | T S Gijutsu Kk | 地盤改良確認法 |
JPH02217514A (ja) * | 1989-02-16 | 1990-08-30 | Aoki Corp | 薬液注入工法 |
JP2006291452A (ja) * | 2005-04-05 | 2006-10-26 | Port & Airport Research Institute | 薬液注入による地盤改良工法 |
JP2007051481A (ja) * | 2005-08-18 | 2007-03-01 | Kyokado Eng Co Ltd | 地盤注入工法 |
US20140161540A1 (en) * | 2008-11-21 | 2014-06-12 | Uretek Usa, Inc. | Measuring underground pressure |
WO2015092854A1 (ja) * | 2013-12-16 | 2015-06-25 | 平成テクノス株式会社 | 地盤改良工法 |
-
2016
- 2016-03-03 JP JP2016040675A patent/JP6771177B2/ja active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59122618A (ja) * | 1982-12-28 | 1984-07-16 | T S Gijutsu Kk | 地盤改良確認法 |
JPH02217514A (ja) * | 1989-02-16 | 1990-08-30 | Aoki Corp | 薬液注入工法 |
JP2006291452A (ja) * | 2005-04-05 | 2006-10-26 | Port & Airport Research Institute | 薬液注入による地盤改良工法 |
JP2007051481A (ja) * | 2005-08-18 | 2007-03-01 | Kyokado Eng Co Ltd | 地盤注入工法 |
US20140161540A1 (en) * | 2008-11-21 | 2014-06-12 | Uretek Usa, Inc. | Measuring underground pressure |
WO2015092854A1 (ja) * | 2013-12-16 | 2015-06-25 | 平成テクノス株式会社 | 地盤改良工法 |
Non-Patent Citations (1)
Title |
---|
社団法人日本グラウト協会, 新訂 正しい薬液注入工法, vol. 初版, JPN6019042639, 14 May 2007 (2007-05-14), pages 306 - 307, ISSN: 0004202740 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018199896A (ja) * | 2017-05-25 | 2018-12-20 | 日本基礎技術株式会社 | 薬液注入装置及び地盤注入工法 |
JP2020033758A (ja) * | 2018-08-30 | 2020-03-05 | 日特建設株式会社 | パッカー及び当該パッカーを用いる工法 |
JP7046448B2 (ja) | 2018-08-30 | 2022-04-04 | 日特建設株式会社 | パッカー及び当該パッカーを用いる工法 |
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