JP2601697B2 - Ground improvement method using microorganisms - Google Patents
Ground improvement method using microorganismsInfo
- Publication number
- JP2601697B2 JP2601697B2 JP21612988A JP21612988A JP2601697B2 JP 2601697 B2 JP2601697 B2 JP 2601697B2 JP 21612988 A JP21612988 A JP 21612988A JP 21612988 A JP21612988 A JP 21612988A JP 2601697 B2 JP2601697 B2 JP 2601697B2
- Authority
- JP
- Japan
- Prior art keywords
- microorganisms
- ground
- soft ground
- improvement method
- microorganism
- 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 - Lifetime
Links
Landscapes
- 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
【発明の詳細な説明】 「産業上の利用分野」 この発明は、ウォーターフロントなどの軟弱地盤を微
生物を用いて改良する地盤改良方法に関するものであ
る。Description: TECHNICAL FIELD The present invention relates to a ground improvement method for improving soft ground such as a waterfront using microorganisms.
「従来技術およびその課題」 一般に、臨海部などのウォーターフロントは、立地条
件がよいことから、各種の構造物を構築することが望ま
れているが、このようなウォーターフロントはそのほと
んどが埋立地であるため、地盤が極めて軟弱で、その上
に中層以上の構築構造物を構築することは極めて困難で
あった。このため、このようなウォーターフロントにお
いて中層以上の構築構造物を構築する場合には、地盤の
強化方法が課題となっていた。"Conventional technology and its problems" In general, it is desirable to construct various structures on the waterfront such as the seafront because of good location conditions. However, most of such waterfronts are in landfills. Therefore, the ground was extremely soft, and it was extremely difficult to construct a middle or higher building structure thereon. For this reason, when constructing a middle or higher building structure on such a waterfront, a method of strengthening the ground has been a problem.
一方、近年、遺伝子組み替え等によって各種の有用な
物質を生産する微生物が合成されるようになってきてお
り、そのような微生物として、粘着製の液体を生産する
ものを合成することも可能である。そこで、この発明
は、上記のような課題を解決するため、ウォーターフロ
ントなどの軟弱地盤を、粘着性の液体を生産する微生物
を用いて強化することを目的としている。On the other hand, in recent years, microorganisms that produce various useful substances have been synthesized by genetic recombination and the like. As such microorganisms, those that produce adhesive liquids can also be synthesized. . Therefore, an object of the present invention is to strengthen a soft ground such as a waterfront by using microorganisms that produce a sticky liquid in order to solve the above-described problems.
「課題を解決するための手段」 この発明の微生物を用いた地盤改良方法は、ウォータ
ーフロントなどの軟弱地盤に構造物の基礎を構築する際
に、その軟弱地盤を強化するために行なう地盤改良方法
であって、上記軟弱地盤中に粘着性の液体を生産する微
生物を注入するものである。[Means for Solving the Problems] The soil improvement method using the microorganism of the present invention is a soil improvement method for strengthening the soft ground when building the foundation of the structure on the soft ground such as a waterfront. And injecting a microorganism that produces a sticky liquid into the soft ground.
「作用」 この発明の微生物を用いた地盤改良方法においては、
粘着性の液体を生産する微生物を軟弱地盤に注入するこ
とによって、その軟弱地盤中の土粒子が上記微生物の生
産する、粘着性の液体により互いに結合し、それによっ
てその軟弱地盤の強度が向上することとなる。"Action" In the soil improvement method using the microorganism of the present invention,
By injecting microorganisms that produce a sticky liquid into the soft ground, the soil particles in the soft ground are bonded to each other by the sticky liquid produced by the microorganisms, thereby improving the strength of the soft ground. It will be.
「実施例」 以下、この発明の一実施例を第１図ないし第３図を参
照して説明する。Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.
この微生物を用いた地盤改良方法は、ウォーターフロ
ントなどの軟弱地盤に構造物の基礎を構築する際に、そ
の軟弱地盤中に粘着性の液体を生産する微生物を注入す
ることによって、その軟弱地盤中の土粒子を上記微生物
の生産する粘着性の液体により互いに結合させ、それに
よってその軟弱地盤の強度を向上させるようにしたもの
である。The soil improvement method using this microorganism, when building the foundation of the structure on soft ground such as waterfront, by injecting microorganisms that produce a viscous liquid into the soft ground, in the soft ground Are bonded to each other by a viscous liquid produced by the microorganism, thereby improving the strength of the soft ground.
上記のような粘着性の液体を生産する微生物として
は、例えば、多糖類を分泌するHansenula等の酵母およ
びBacillus（バチルス）等の細菌、Cladosporium等の糸
状菌、NocardiaおよびCorynebacterium等の放線菌など
がある。Examples of microorganisms that produce such sticky liquids include yeasts such as Hansenula that secrete polysaccharides, bacteria such as Bacillus (Bacillus), filamentous fungi such as Cladosporium, and actinomycetes such as Nocardia and Corynebacterium. is there.
そして、これらの微生物を地盤改良に用いる場合に
は、予めその微生物を大量に培養しておく必要がある
が、その場合、液体培地で連続的に培養を行なえば良
い。また、このようにして培養した微生物は、使用する
際にも必ずしも培地から分離する必要はなく、例えば上
記液体培地で培養された微生物のコロニーをその液体培
地ごと地盤に注入するようにしても良い。When these microorganisms are used for soil improvement, it is necessary to culture the microorganisms in large quantities in advance. In this case, the microorganisms may be continuously cultured in a liquid medium. In addition, the microorganisms cultured in this manner do not necessarily need to be separated from the medium when used, and for example, a colony of microorganisms cultured in the liquid medium may be injected into the ground together with the liquid medium. .
このようにして培養した微生物を用いて軟弱地盤を改
良する場合には、まず、第１図ａに示すように、基礎工
として杭１・・・などを打ち込んだ地盤２に、粘着性の
液体を生産する微生物のコロニー３・・・を注入する。
その際、注入する微生物が好気性微生物である場合に
は、改良する地盤中に空気を常時吹き込んでおくことが
望ましい。このようにすると、第２図に示すように、上
記地盤２中の土粒子４・・・が上記微生物の生産する粘
着性の液体により互いに結合し、それによって上記地盤
２が、第１図ｂに示すように次第に強化されていく。そ
して、上記地盤２中の各土粒子４の結合が第３図に示す
ように強化されたときに、その地盤２全体が、第１図ｃ
に示すように強化されることとなる。When the soft ground is improved using the microorganisms cultured in this manner, first, as shown in FIG. 1a, an adhesive liquid is applied to the ground 2 into which piles 1... Are injected.
At this time, when the microorganism to be injected is an aerobic microorganism, it is desirable to constantly blow air into the ground to be improved. In this way, as shown in FIG. 2, the soil particles 4... In the ground 2 are bonded to each other by the viscous liquid produced by the microorganism, whereby the ground 2 It is gradually strengthened as shown in. When the bond between the soil particles 4 in the ground 2 is strengthened as shown in FIG.
Will be strengthened as shown.
「発明の効果」 この発明の微生物を用いた地盤改良方法は、ウォータ
ーフロントなどの軟弱地盤に構造物の基礎を構築する際
に、その軟弱地盤中に粘着性の液体を生産する微生物を
注入するので、その軟弱地盤を極めて効果的に強化する
ことができる。"Effects of the Invention" The soil improvement method using microorganisms of the present invention, when constructing the foundation of a structure on soft ground such as a waterfront, injects microorganisms that produce a sticky liquid into the soft ground. Therefore, the soft ground can be very effectively strengthened.
第１図ないし第３図は、この発明の一実施例を示す図で
あって、第１図ａ、ｂ、ｃは微生物を用いた地盤改良方
法を説明する説明図、第２図、第３図は土粒子の結合状
態を示す概略図である。 １……杭、 ２……軟弱地盤（地盤）、 ３……コロニー（微生物）、 ４……土粒子。1 to 3 are views showing an embodiment of the present invention. FIGS. 1a, 1b and 1c are explanatory views for explaining a soil improvement method using microorganisms, and FIGS. The figure is a schematic diagram showing the bonding state of the soil particles. 1 ... pile, 2 ... soft ground (ground), 3 ... colony (microorganism), 4 ... soil particles.
Claims (1)
物の基礎を構築する際に、その軟弱地盤を強化するため
に行なう地盤改良方法であって、上記軟弱地盤中に粘着
性の液体を生産する微生物を注入することを特徴とする
微生物を用いた地盤改良方法。1. A ground improvement method for strengthening a soft ground when a foundation of a structure is constructed on a soft ground such as a waterfront, wherein a viscous liquid is produced in the soft ground. A soil improvement method using a microorganism, which comprises injecting the microorganism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21612988A JP2601697B2 (en) | 1988-08-30 | 1988-08-30 | Ground improvement method using microorganisms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21612988A JP2601697B2 (en) | 1988-08-30 | 1988-08-30 | Ground improvement method using microorganisms |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0266213A JPH0266213A (en) | 1990-03-06 |
| JP2601697B2 true JP2601697B2 (en) | 1997-04-16 |
Family
ID=16683715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21612988A Expired - Lifetime JP2601697B2 (en) | 1988-08-30 | 1988-08-30 | Ground improvement method using microorganisms |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2601697B2 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5800583A (en) * | 1996-06-11 | 1998-09-01 | Amway Corporation | Air treatment system |
| US5762667A (en) * | 1996-06-11 | 1998-06-09 | Amway Corporation | Air treatment system |
| US5840092A (en) * | 1996-06-11 | 1998-11-24 | Amway Corporation | Air treatment system |
| US5803940A (en) * | 1996-06-11 | 1998-09-08 | Amway Corporation | Air treatment system |
| FR2873725B1 (en) * | 2004-07-28 | 2006-11-24 | Cie Du Sol Soc Civ Ile | SOIL CONSOLIDATION METHOD AND COMPOSITION FOR CARRYING OUT SAID METHOD |
| JP4599611B2 (en) * | 2004-11-17 | 2010-12-15 | 国立大学法人北海道大学 | Ground improvement method and grout used in the method |
| JP5022293B2 (en) * | 2008-04-23 | 2012-09-12 | 大成建設株式会社 | Ground improvement method using microorganisms |
| JP5252754B2 (en) * | 2012-02-03 | 2013-07-31 | 大成建設株式会社 | Ground improvement method using microorganisms |
| CN109881660B (en) * | 2019-02-25 | 2021-02-09 | 河海大学 | A construction method for scour protection of marine building foundations combined with microbial solidification and anti-seepage wall |
| CN112211176A (en) * | 2019-07-10 | 2021-01-12 | 广东工业大学 | A kind of microbial grouting drainage solidified pile and its construction method and application |
| CN111287207B (en) * | 2019-12-31 | 2021-11-05 | 浙江工业大学 | Calcareous sandy soil foundation solidification structure |
| CN115324027A (en) * | 2022-08-25 | 2022-11-11 | 湖南大学 | A kind of steel slag gravel pile and its construction method |
-
1988
- 1988-08-30 JP JP21612988A patent/JP2601697B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0266213A (en) | 1990-03-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2601697B2 (en) | Ground improvement method using microorganisms | |
| DE69535408T2 (en) | THERMOPHILIC EXPRESSION SYSTEM IN MUSHROOMS | |
| CA2075624A1 (en) | Ultrasound-Enhanced Delivery of Materials Through the Skin | |
| US3032472A (en) | Microbiological secondary recovery | |
| WO1999047661A3 (en) | Production of biofilaments in transgenic animals | |
| WO2003046296A8 (en) | Method for consolidating soils or lifting structures with pre ssures larger than 500 kpa | |
| CA2241968A1 (en) | Production and secretion of proteins of bacterial origin in filamentous fungi | |
| AU5791890A (en) | Microoganism-based pesticide compositions, their production process and their application in agronomy | |
| IE831179L (en) | Mycostatic whey process | |
| DE3378639D1 (en) | Process for producing exocellular biopolymers | |
| Holmberg et al. | Vibrations generated by traffic and building construction activities | |
| GB1518463A (en) | Method of injecting the earth with soil consolidation liquid | |
| EP0133597A3 (en) | A method of producing c3 and/or c4 hydrocarbons | |
| WO2003043417A3 (en) | Use of paecilomyces spp. as pathogenic agents against subterranean termites | |
| CN101092831A (en) | Method for isolating vibration by using underground external wall of buildings | |
| CN1081470A (en) | Improve the method that the ancient imperial sour mixt bacteria of 2-ketone-L-transforms vigor of producing | |
| Peberdy | The biology of Penicillium. | |
| WO2001032902A1 (en) | Method for degrading polylactate resins | |
| JPS5817801Y2 (en) | Ground vibration isolation plate | |
| Egorov et al. | Study of the formation of fibrinolytic exoproteases in the associative cultures of Actinomycetes. | |
| Ishizaki | Bacteria culture and fermentation using the same. | |
| Clewell et al. | Sex pheromones and plasmid-related conjugation phenomena in Streptococcus faecalis. | |
| Schniewind | Wood & Wood Based Materials | |
| TH16204A (en) | Method for cell culture storage and chonidea | |
| JP2586288B2 (en) | Ground improvement body |