WO2005021932A1 - 気泡シールド工法における気泡の生成方法及び気泡シールド工法に用いられる気泡材 - Google Patents
気泡シールド工法における気泡の生成方法及び気泡シールド工法に用いられる気泡材 Download PDFInfo
- Publication number
- WO2005021932A1 WO2005021932A1 PCT/JP2004/012883 JP2004012883W WO2005021932A1 WO 2005021932 A1 WO2005021932 A1 WO 2005021932A1 JP 2004012883 W JP2004012883 W JP 2004012883W WO 2005021932 A1 WO2005021932 A1 WO 2005021932A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- viscosity
- solution
- foam
- foaming
- foamed material
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000006260 foam Substances 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 title claims abstract description 12
- 239000000243 solution Substances 0.000 claims abstract description 26
- 229910021645 metal ion Inorganic materials 0.000 claims abstract description 18
- 239000000783 alginic acid Substances 0.000 claims abstract description 7
- 235000010443 alginic acid Nutrition 0.000 claims abstract description 7
- 229920000615 alginic acid Polymers 0.000 claims abstract description 7
- 229960001126 alginic acid Drugs 0.000 claims abstract description 7
- 150000004781 alginic acids Chemical class 0.000 claims abstract description 7
- 239000007864 aqueous solution Substances 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 238000005187 foaming Methods 0.000 claims description 20
- 239000006261 foam material Substances 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 15
- 239000004088 foaming agent Substances 0.000 claims description 5
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 4
- 229910001424 calcium ion Inorganic materials 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims 1
- 239000002562 thickening agent Substances 0.000 abstract description 7
- 229920002907 Guar gum Polymers 0.000 abstract description 6
- 239000000665 guar gum Substances 0.000 abstract description 6
- 235000010417 guar gum Nutrition 0.000 abstract description 6
- 229960002154 guar gum Drugs 0.000 abstract description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000004576 sand Substances 0.000 description 8
- 239000002689 soil Substances 0.000 description 8
- 230000008719 thickening Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 230000035699 permeability Effects 0.000 description 6
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 229920000297 Rayon Polymers 0.000 description 3
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001879 gelation Methods 0.000 description 3
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 3
- 229910001388 sodium aluminate Inorganic materials 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910021538 borax Inorganic materials 0.000 description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 2
- 229920006184 cellulose methylcellulose Polymers 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000004328 sodium tetraborate Substances 0.000 description 2
- 235000010339 sodium tetraborate Nutrition 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910000358 iron sulfate Inorganic materials 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000006262 metallic foam Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000021148 sequestering of metal ion Effects 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/38—Gaseous or foamed well-drilling compositions
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0642—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end
- E21D9/0678—Adding additives, e.g. chemical compositions, to the slurry or the cuttings
Definitions
- the present invention relates to a method of generating bubbles suitable for bubble shield method, particularly for sand with high water permeability.
- Additives used in mud pressure shields are (a) bentonite type, (b) cell opening type, (c) polyacrylamide type, (d) water absorbing resin type, (e) ) It is classified into surfactant group.
- the foaming agent used in the bubble shielding method generally belongs to (e) surfactant system, and special foaming agent (OK-2: main ingredient of foaming material made of cellulose polymer using pulp as a raw material) ) Is produced by mixing air into the aqueous solution of By injecting this foam material into the face, the fluidity and water resistance of the excavated soil can be improved, and adhesion of the soil in the chamber 1 can be prevented, and smooth excavation can be performed while securing the stability of the face. be able to.
- the type of air bubble material is determined from the properties of the ground being excavated, that is, the particle size accumulation curve (Bubble shield method technical data “Selection criteria for soil quality and special air bubble material”, March 1995) , Shield method construction technology published, http: ⁇ w. Shield- meth od. Gr. Jp / what / kiho. Refer to the PDF), for example, as shown in Figure 1, A type (solution viscosity: 2.7 m P) The applicable range of a ⁇ s) is I zone consisting of clay, silt, fine sand, etc. Alternatively, the application range of type B (solution viscosity 30 0 m Pa s) is suitable for the ⁇ to ⁇ zone consisting of fine sand, coarse sand, etc., while it is the range of zone II.
- a type solution viscosity: 2.7 m P
- the applicable range of a ⁇ s) is I zone consisting of clay, silt, fine sand, etc.
- the thickener is added to O K-1 to add viscosity to the air bubbles, and the cell strength is increased.
- the thickener is added to O K-1 to add viscosity to the air bubbles, and the cell strength is increased.
- the thickener is added to O K-1 to add viscosity to the air bubbles, and the cell strength is increased.
- soil with a high water permeability coefficient that belongs to zone IV even if using a weir type, air bubbles are likely to be defoamed by the discharge of abundant groundwater, making it difficult to keep the face stable.
- problems such as development from the screw conveyor occurred, causing problems in digging.
- the expansion ratio will decrease due to pressure buildup in the foaming device due to the viscosity, clogging, etc., and it will not be possible to foam 6 times the standard of cocoon type of bubble shield. is there.
- the present invention solves the above-mentioned problems, and by using a cocoon-type foam material to secure a desired expansion ratio and then further thickening it, it is possible to use it even in a highly permeable sandy ground.
- Another object of the present invention is to provide a method of generating air bubbles in an air bubble shielding method and an air bubble material used in an air bubble shielding method, which enables the air bubble shielding method to be carried out without using an auxiliary method.
- the method for producing foam according to the present invention one or a mixture of CMC, gua gum and alginic acid is added as a thickener to a foam material as a main agent, and the viscosity is 300 It is characterized in that the foaming agent solution adjusted to ⁇ ⁇ 500 m Pa s is foamed at a predetermined foaming ratio through a foaming device, and an aqueous solution of metal ion is added to and mixed with the cells obtained immediately thereafter. Do. Also, the method of the present invention is characterized in that The genus ion is characterized in that it is a trivalent metal ion or calcium ion. Furthermore, the method of the present invention is characterized in that in the metal ion, an auxiliary agent for liquid property adjustment is added.
- the foam material used in the foam shielding method according to the present invention is a foam material as the main agent, to which one or a mixture of CMC, guar gum and alginic acid is added as a thickener.
- the foam material solution adjusted to a viscosity of 300 to 500 111? 3 ⁇ s is foamed at a predetermined foaming ratio through a foaming device, and is obtained immediately after that.
- FIG. 1 is a graph showing the selection criteria of soil quality and foam material.
- FIG. 2 is an explanatory sectional view showing a bubble shielding method to which the method of the present invention is applied.
- BEST MODE FOR CARRYING OUT THE INVENTION FIG. 2 shows a bubble shield method to which the method of the present invention is applied.
- 1 is a shield excavator and 2 is a tunnel segment constructed following the excavator 1.
- the shield drilling machine 1 has a cutter disk 4 on the front of a cylindrical skin plate 3 and receives reaction force on the front end of the segment 2 by jacks (not shown) to move the face by rotating the force cutter disk 4.
- Excavate carry the excavated slice taken into the chamber 16 which is located on the back of the force cutter disk 4 and separated by the partition 5 by the screw conveyor 7, deliver it to the scrape conveyance truck arranged at the rear part, and remove the soil. It is configured as follows.
- a feed rail 8 is constructed, and in the present embodiment, various carriages constituting the bubble generation plant are connected in a row on the rail 8.
- Each truck consists of a foam material storage truck 9, a drive truck 10, a control truck 11 and a foam truck 12 in this order from the rear side.
- metal foam is placed on the foam truck 12
- Storage tank 13 is arranged.
- the storage carriage 9 temporarily receives the foam material supplied from the foam material pipe 14 drawn into the well and stores it there.
- Drive truck 10 is equipped with foam injection pump 15 and air compressor 16;
- Control truck 1 1 is equipped with control device 17 of pump 15 and compressor 16;
- Foam truck 12 has foaming device 1 Eight are provided, and each is connected via a foam supply line and an air line.
- the foam material stored in the storage carriage 9 is sent to the foaming device 18 by the pump 15 and the pressure air generated by the air compressor 16 in the foaming device 18 is at a predetermined pressure ratio. By mixing, it foams at a predetermined foaming ratio and is discharged to the front surface of the cutter disc 4 through the bubble injection pipe 19.
- the bubble injection tube 19 is connected to the metal ion storage tank 13 via the supply pipe 20 and the pump P in the vicinity of the discharge end of the foaming device 18, and the bubbles formed in the foaming device 18
- the metal ion solution is mixed into the The mixing ratio becomes a predetermined ratio by driving and controlling the pump P by the control device 17.
- the foaming material used is a B-type foaming material that conforms to the above-mentioned ⁇ to ⁇ non, and the main component is added to the above-mentioned ⁇ -1 which is the main component of the foaming material, It is a foaming agent solution adjusted to a viscosity of 300 to 500 m Pa ⁇ s by adding one or a mixture of one or more selected from CMC, guar gum and alginic acid as a thickener.
- the metal ions to be mixed include aluminum compounds such as alum and sulfate, iron sulfate, iron chloride, sodium aluminate, sodium hydroxide, borax, solutions of trivalent metal ions such as boric acid, and calcium chloride solution. .
- auxiliaries for liquid adjustment such as sodium hydroxide aqueous solution and sulfuric acid aqueous solution are also mixed in advance in the metal ion solution. This is because the degree of thickening varies depending on the liquid, for example, in the case of gua gum, the degree of thickening is increased on the alkali side, and in the case of C M C, the degree of thickening is increased on the acid side.
- these metal ion solutions be mixed in the form of a 0.5% to 10% aqueous solution at a mixing ratio of about 5% to 10% by volume ratio to the stock solution of the foam material solution.
- the reason for this is that when the mixing amount is 5%, the increase in viscosity due to the target gelation is not remarkable, and when it exceeds 10%, volumetric contraction such as separation of water occurs by aggregation. This is because there is a problem that sound bubbles can not be generated.
- the present invention is suitable for excavating sand permeable ground having high permeability in a bubble shield construction method.
- the metal ion solution due to the addition of the metal ion solution, the main component of the air bubbles discharged through the foaming device is gelled and discharged from the tip of the drilling machine in a sticky state while being maintained at the desired expansion ratio.
- a metal ion to be used a trivalent metal ion or calcium ion is desirable.
- the liquid property adjusting aid By the addition of the liquid property adjusting aid, the viscosity can be maintained easily and the liquid property can be maintained.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-307983 | 2003-08-29 | ||
JP2003307983A JP3994076B2 (ja) | 2003-08-29 | 2003-08-29 | 気泡シールド工法における気泡の生成方法及び気泡シールド工法に用いられる気泡材 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005021932A1 true WO2005021932A1 (ja) | 2005-03-10 |
Family
ID=34269494
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/012883 WO2005021932A1 (ja) | 2003-08-29 | 2004-08-30 | 気泡シールド工法における気泡の生成方法及び気泡シールド工法に用いられる気泡材 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP3994076B2 (zh) |
CN (1) | CN100549363C (zh) |
WO (1) | WO2005021932A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017153449A1 (en) | 2016-03-09 | 2017-09-14 | Lamberti Spa | Method of boring through subterranean formations |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4759397B2 (ja) * | 2005-05-18 | 2011-08-31 | 株式会社大林組 | 気泡シールド工法における掘削土の消泡方法及び消泡材 |
CN102635363B (zh) * | 2012-04-23 | 2015-01-07 | 武汉船用机械有限责任公司 | 用于盾构机的添加剂注入口、添加剂注入装置及盾构机 |
JP6155010B2 (ja) * | 2012-11-07 | 2017-06-28 | 株式会社大林組 | 砂礫地盤の掘削に適した気泡シールド工法 |
CN103305207A (zh) * | 2013-06-06 | 2013-09-18 | 上海贵通新材料科技有限公司 | 一种新型环保的油气田开采用压裂液 |
ITUB20159216A1 (it) * | 2015-12-21 | 2017-06-21 | Mapei Spa | Additivo schiumogeno per il condizionamento del terreno in presenza di scavo meccanizzato per la realizzazione di gallerie |
JP6416426B1 (ja) * | 2018-05-10 | 2018-10-31 | テクニカ合同株式会社 | 気泡混合土砂の改質処理方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6183798A (ja) * | 1984-09-28 | 1986-04-28 | 株式会社熊谷組 | シ−ルド式トンネル掘進方法 |
DE19717899A1 (de) * | 1996-12-09 | 1998-06-10 | Wolff Walsrode Ag | Verfahren zur Herstellung sowie Verwendung von Gelen als Additive für einen mechanischen Schildvortrieb |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2849041B2 (ja) * | 1994-06-30 | 1999-01-20 | ザ、プロクター、エンド、ギャンブル、カンパニー | 洗剤組成物 |
DE19530077A1 (de) * | 1995-08-16 | 1997-02-20 | Wolff Walsrode Ag | Zubereitungen aus nicht-ionischen und ionischen Hydrokolloiden und deren Verwendung als Hilfsmittel für den Tunnelbau |
CN1162367C (zh) * | 2002-12-26 | 2004-08-18 | 北京城建集团有限责任公司 | 盾构隧道壁后注浆惰性浆液 |
-
2003
- 2003-08-29 JP JP2003307983A patent/JP3994076B2/ja not_active Expired - Fee Related
-
2004
- 2004-08-30 CN CNB2004800247579A patent/CN100549363C/zh not_active Expired - Fee Related
- 2004-08-30 WO PCT/JP2004/012883 patent/WO2005021932A1/ja active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6183798A (ja) * | 1984-09-28 | 1986-04-28 | 株式会社熊谷組 | シ−ルド式トンネル掘進方法 |
DE19717899A1 (de) * | 1996-12-09 | 1998-06-10 | Wolff Walsrode Ag | Verfahren zur Herstellung sowie Verwendung von Gelen als Additive für einen mechanischen Schildvortrieb |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017153449A1 (en) | 2016-03-09 | 2017-09-14 | Lamberti Spa | Method of boring through subterranean formations |
Also Published As
Publication number | Publication date |
---|---|
JP2005076285A (ja) | 2005-03-24 |
CN1882762A (zh) | 2006-12-20 |
CN100549363C (zh) | 2009-10-14 |
JP3994076B2 (ja) | 2007-10-17 |
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