JP2021130733A - 地盤注入工法および地盤注入材 - Google Patents
地盤注入工法および地盤注入材 Download PDFInfo
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- JP2021130733A JP2021130733A JP2020025012A JP2020025012A JP2021130733A JP 2021130733 A JP2021130733 A JP 2021130733A JP 2020025012 A JP2020025012 A JP 2020025012A JP 2020025012 A JP2020025012 A JP 2020025012A JP 2021130733 A JP2021130733 A JP 2021130733A
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- Prior art keywords
- geothermal water
- ground
- soil
- water
- ground injection
- Prior art date
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- 239000000463 material Substances 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 44
- 239000002689 soil Substances 0.000 title abstract description 30
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 126
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 92
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 57
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 52
- 230000007613 environmental effect Effects 0.000 claims abstract description 30
- 239000002253 acid Substances 0.000 claims abstract description 9
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 9
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003513 alkali Substances 0.000 claims abstract description 7
- 150000003839 salts Chemical class 0.000 claims abstract description 7
- 238000002347 injection Methods 0.000 claims description 74
- 239000007924 injection Substances 0.000 claims description 74
- 229910052785 arsenic Inorganic materials 0.000 claims description 23
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims description 23
- 239000000383 hazardous chemical Substances 0.000 claims description 10
- 150000002736 metal compounds Chemical class 0.000 claims description 3
- 238000003900 soil pollution Methods 0.000 abstract description 3
- 238000010248 power generation Methods 0.000 description 10
- 239000008119 colloidal silica Substances 0.000 description 9
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 238000010828 elution Methods 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 239000003673 groundwater Substances 0.000 description 5
- 239000011777 magnesium Substances 0.000 description 5
- 229910052749 magnesium Inorganic materials 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000000499 gel Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 238000003895 groundwater pollution Methods 0.000 description 3
- 239000011440 grout Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229910052711 selenium Inorganic materials 0.000 description 2
- 239000011669 selenium Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 description 1
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
Description
前記地熱水として、重金属の含有量が環境基準値以下であるものを用いることを特徴とするものである。
前記地熱水として、重金属の含有量が一律排水基準値以下であるものを用いることを特徴とするものである。
前記地熱水として、重金属の含有量が不溶化材を用いて環境基準値以下または一律排水基準値以下に低減されたものを用いることを特徴とするものである。
Claims (8)
- シリカを含有する地熱水を含む地盤注入材を地盤に注入する地盤注入工法であって、
前記地熱水として、重金属の含有量が環境基準値以下であるものを用いることを特徴とする地盤注入工法。 - シリカを含有する地熱水を含む地盤注入材を地盤に注入する地盤注入工法であって、
前記地熱水として、重金属の含有量が一律排水基準値以下であるものを用いることを特徴とする地盤注入工法。 - 前記地熱水に含まれる重金属の含有量を、不溶化材を用いて低減する請求項1または2記載の地盤注入工法。
- 前記地熱水として、第二種特定有害物質の含有量が環境基準値以下に低減されたものを用いる請求項1〜3のうちいずれか一項記載の地盤注入工法。
- 前記地熱水として、前記重金属としてのヒ素を不溶化して低減させたものを用いる請求項1〜4のうちいずれか一項記載の地盤注入工法。
- 請求項1〜5のうちいずれか一項記載の地盤注入工法に用いられる地盤注入材であって、前記地熱水とともに、水ガラス、酸、塩およびアルカリからなる群から選択されるいずれか一種または複数種を含み、非アルカリ性であることを特徴とする地盤注入材。
- さらに、多価金属化合物を含む請求項6記載の地盤注入材。
- シリカ濃度が0.4〜50.0w/vol%であって、pHが1.5〜9.0の範囲である請求項6または7記載の地盤注入材。
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JP2021130733A true JP2021130733A (ja) | 2021-09-09 |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6984834B1 (ja) * | 2020-12-07 | 2021-12-22 | 強化土エンジニヤリング株式会社 | 地盤注入工法 |
JP6998025B1 (ja) | 2021-06-30 | 2022-02-04 | 強化土エンジニヤリング株式会社 | シリカグラウトおよびそれを用いた地盤注入工法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0333009A (ja) * | 1989-03-23 | 1991-02-13 | Tasman Pulp & Paper Co Ltd | 沈澱無定形シリカ及びその製造方法 |
JP2006167524A (ja) * | 2004-12-14 | 2006-06-29 | Taiheiyo Cement Corp | 砒素含有土壌の処理方法 |
JP2007302885A (ja) * | 2006-04-14 | 2007-11-22 | Univ Waseda | 有害物質の不溶化剤 |
JP2019011473A (ja) * | 2017-06-30 | 2019-01-24 | 富士化学株式会社 | 地盤注入用固結材 |
-
2020
- 2020-02-18 JP JP2020025012A patent/JP6796305B1/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0333009A (ja) * | 1989-03-23 | 1991-02-13 | Tasman Pulp & Paper Co Ltd | 沈澱無定形シリカ及びその製造方法 |
JP2006167524A (ja) * | 2004-12-14 | 2006-06-29 | Taiheiyo Cement Corp | 砒素含有土壌の処理方法 |
JP2007302885A (ja) * | 2006-04-14 | 2007-11-22 | Univ Waseda | 有害物質の不溶化剤 |
JP2019011473A (ja) * | 2017-06-30 | 2019-01-24 | 富士化学株式会社 | 地盤注入用固結材 |
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