JP4933931B2 - 地盤の安定化用注入材組成物およびそれを用いた安定強化工法 - Google Patents
地盤の安定化用注入材組成物およびそれを用いた安定強化工法 Download PDFInfo
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- JP4933931B2 JP4933931B2 JP2007074886A JP2007074886A JP4933931B2 JP 4933931 B2 JP4933931 B2 JP 4933931B2 JP 2007074886 A JP2007074886 A JP 2007074886A JP 2007074886 A JP2007074886 A JP 2007074886A JP 4933931 B2 JP4933931 B2 JP 4933931B2
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- Prior art keywords
- ground
- cement
- injection material
- rock
- injection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000002347 injection Methods 0.000 title claims description 65
- 239000007924 injection Substances 0.000 title claims description 65
- 239000000463 material Substances 0.000 title claims description 54
- 238000000034 method Methods 0.000 title claims description 21
- 230000006641 stabilisation Effects 0.000 title claims description 9
- 238000011105 stabilization Methods 0.000 title claims description 9
- 238000005728 strengthening Methods 0.000 title claims description 7
- 239000000203 mixture Substances 0.000 title description 6
- 239000004568 cement Substances 0.000 claims description 46
- 239000004115 Sodium Silicate Substances 0.000 claims description 31
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 31
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 31
- 239000011435 rock Substances 0.000 claims description 28
- 238000001879 gelation Methods 0.000 claims description 17
- 239000007864 aqueous solution Substances 0.000 claims description 15
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 14
- 239000007900 aqueous suspension Substances 0.000 claims description 13
- 239000011734 sodium Substances 0.000 claims description 11
- 238000009412 basement excavation Methods 0.000 claims description 10
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 238000005553 drilling Methods 0.000 claims description 5
- 238000001802 infusion Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 9
- 238000002156 mixing Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- -1 for example Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000011398 Portland cement Substances 0.000 description 3
- 238000010828 elution Methods 0.000 description 3
- 239000000499 gel Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 150000002736 metal compounds Chemical class 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000011882 ultra-fine particle Substances 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
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 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
- 150000001408 amides Chemical class 0.000 description 1
- 239000011400 blast furnace cement Substances 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000012669 compression test Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Description
セメントとして表1に示すようなブレーン値を有するセメント1(商品名:デンカコロイダルスーパー、電気化学工業(株)製)、セメント2(商品名:普通ポルトランドセメント、太平洋セメント(株)製)、セメント3(商品名:ファインハード、三菱マテリアル(株)製)を使用した。また、ケイ酸ソーダとしては、表2に示すような組成を有するケイ酸ソーダ1〜4(いずれも富士化学(株)製)を使用した。
あらかじめ20℃に調整したA液、B液をスパチュラで20秒間攪拌してよく混合し、引き続いて2つのポリカップを用いて注入材を移動させ、流動性が消失するまでの時間を測定した。
5φ×10cmのモールドに注入材を流し込み、20℃で24時間密閉養生し、JIS A 1216(1998)における「土の一軸圧縮試験方法」に準拠して測定した。
Claims (2)
- (A)ブレーン値が8000〜10000cm2/gのセメントの水懸濁液、および(B)SiO2およびNa2Oからなり、SiO2/Na2O(モル比)が2.15〜2.25であるケイ酸ソーダ水溶液を含むトンネル掘削用の岩盤または地盤の安定化用注入材であって、該注入材1000L当たり、セメントの重量が225〜250kg、およびケイ酸ソーダ成分由来のSiO2の重量が100〜120kgであり、該注入材のゲル化時間が1分30秒〜2分30秒、および24時間後の一軸圧縮強度が2.0MPa以上であることを特徴とする岩盤または地盤の安定化用注入材。
- (a)岩盤または地盤に所定間隔で複数個の孔を穿設する工程、該孔内に中空のボルトを挿入する工程、および
(b)該ボルトの開口部より請求項1記載の岩盤または地盤の安定化用注入材を岩盤または地盤に注入し、固結させる工程
を含むトンネル掘削のための岩盤または地盤の安定強化工法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007074886A JP4933931B2 (ja) | 2007-03-22 | 2007-03-22 | 地盤の安定化用注入材組成物およびそれを用いた安定強化工法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007074886A JP4933931B2 (ja) | 2007-03-22 | 2007-03-22 | 地盤の安定化用注入材組成物およびそれを用いた安定強化工法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008231308A JP2008231308A (ja) | 2008-10-02 |
JP4933931B2 true JP4933931B2 (ja) | 2012-05-16 |
Family
ID=39904504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2007074886A Expired - Fee Related JP4933931B2 (ja) | 2007-03-22 | 2007-03-22 | 地盤の安定化用注入材組成物およびそれを用いた安定強化工法 |
Country Status (1)
Country | Link |
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JP (1) | JP4933931B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2020036087A1 (ja) * | 2018-08-15 | 2021-08-26 | デンカ株式会社 | 地盤注入剤及びそれを用いた地盤注入工法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS518247B2 (ja) * | 1972-01-26 | 1976-03-15 | ||
JPS594471B2 (ja) * | 1973-08-09 | 1984-01-30 | 中西 渉 | セメントトミズガラスノコンワブツオモチイルチユウニユウコウホウ |
JPS5353113A (en) * | 1976-10-22 | 1978-05-15 | Fujiko Kk | Method of intensifying the strength of subsoil by impregnation practice |
JPS5842229B2 (ja) * | 1977-05-04 | 1983-09-17 | 日本化学工業株式会社 | 水ガラス・セメント注入工法 |
JPH0749578B2 (ja) * | 1989-06-22 | 1995-05-31 | 強化土エンジニヤリング株式会社 | 水ガラス―セメント系グラウト材 |
JP2847337B2 (ja) * | 1994-04-19 | 1999-01-20 | 強化土エンジニヤリング株式会社 | 地盤注入液 |
JP2006249336A (ja) * | 2005-03-11 | 2006-09-21 | Dai Ichi Kogyo Seiyaku Co Ltd | 地盤の安定化用注入材組成物およびそれを用いた安定強化工法 |
JP2009046611A (ja) * | 2007-08-21 | 2009-03-05 | Dai Ichi Kogyo Seiyaku Co Ltd | 地盤の安定化用注入材 |
-
2007
- 2007-03-22 JP JP2007074886A patent/JP4933931B2/ja not_active Expired - Fee Related
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JP2008231308A (ja) | 2008-10-02 |
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