A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Cutoff Grouting Method Consisting Of Bio-grouting Pre-treatment Step And Fiber-reinforced Grouting Post-treatment Step
The present invention relates to a grouting method of injecting a filler in a crack or a cavity in the ground and to a water cutoff grouting method consisting of a bio-grouting pre-treatment step and a fiber-reinforced grout injection post-treatment step, wherein, in the bio grouting pre-treatment step, a microorganism solution is mixed with a calcium chloride solution, which is a reaction solution, in a 1.5 shot manner and the mixture is injected into a crack portion in the ground at a pressure of 0.5 kPa through an injection tube to generate microorganism mineral matter caused by a calcium carbonate precipitation reaction, and, in the fiber-reinforced grout injection post-treatment step, an aramid fiber crushing agent surface-emulsion-treated with liquid A composed of a synthetic silica solution and liquid B made by mixing cement, blast furnace slag micropowder, a calcium hydroxide solution and water is injected in the ground through an injection tube after the bio-grouting pre-treatment step. Therefore, the present invention rapidly fills pores by generating calcium carbonate in an existing water leakage damage occurring portion and a vulnerable portion in the pre-treatment step, while inhibiting micro-cracks of 0.6 mm or less, and enhances a water cutoff and reinforcement effect with respect to ground cracks by performing the post-treatment step, while providing an eco-friendly construction method for preventing environmental problems as compared with a conventional construction method.
본 발명은 지반의 균열이나 공동에 충전재를 주입하는 그라우팅 공법에 관한 것으로 상기 그라우팅 공법은 지반내 균열부위에 미생물 용액과 반응용액인 염화칼슘 용액을 1.5 Shot 방식으로 혼합하여 주입관을 통해 지반에 0.5kPa 압력으로 주입하여 탄산칼슘 침전반응으로 발생된 미생물 광물질을 생성하는 바이오 그라우팅 선처리 단계 및 상기 바이오 그라우팅 선처리 단계 후 합성실리카 용액으로 이루어진 A액과 시멘트와 고로슬래그 미분말, 수산화칼슘용액 및 물이 혼합된 B액과 표면유제처리된 아라미드 섬유파쇄제를 주입관으로 지반에 주입하는 섬유보강 그라우트 주입 후처리 단계로 이루어진 것을 특징으로 하는 바이오 그라우팅 선처리 단계 및 섬유보강 그라우트 주입 후처리 단계로 구성되는 차수 그라우팅 공법에 관한 것으로 그에 따른 효과는 선처리 과정으로 기존 누수 손상 발생부 및 취약부에 탄산칼슘을 생성하여 신속하게 공극을 채우되, 0.6mm 이하의 미세균열을 억제하고, 더불어 후처리공정을 실시하여 지반 균열의 차수 및 보강효과가 높이되, 기존 공법 대비 환경 문제가 발생함을 방지하는 친환경적인 공법이다.
Cutoff Grouting Method Consisting Of Bio-grouting Pre-treatment Step And Fiber-reinforced Grouting Post-treatment Step
The present invention relates to a grouting method of injecting a filler in a crack or a cavity in the ground and to a water cutoff grouting method consisting of a bio-grouting pre-treatment step and a fiber-reinforced grout injection post-treatment step, wherein, in the bio grouting pre-treatment step, a microorganism solution is mixed with a calcium chloride solution, which is a reaction solution, in a 1.5 shot manner and the mixture is injected into a crack portion in the ground at a pressure of 0.5 kPa through an injection tube to generate microorganism mineral matter caused by a calcium carbonate precipitation reaction, and, in the fiber-reinforced grout injection post-treatment step, an aramid fiber crushing agent surface-emulsion-treated with liquid A composed of a synthetic silica solution and liquid B made by mixing cement, blast furnace slag micropowder, a calcium hydroxide solution and water is injected in the ground through an injection tube after the bio-grouting pre-treatment step. Therefore, the present invention rapidly fills pores by generating calcium carbonate in an existing water leakage damage occurring portion and a vulnerable portion in the pre-treatment step, while inhibiting micro-cracks of 0.6 mm or less, and enhances a water cutoff and reinforcement effect with respect to ground cracks by performing the post-treatment step, while providing an eco-friendly construction method for preventing environmental problems as compared with a conventional construction method.
본 발명은 지반의 균열이나 공동에 충전재를 주입하는 그라우팅 공법에 관한 것으로 상기 그라우팅 공법은 지반내 균열부위에 미생물 용액과 반응용액인 염화칼슘 용액을 1.5 Shot 방식으로 혼합하여 주입관을 통해 지반에 0.5kPa 압력으로 주입하여 탄산칼슘 침전반응으로 발생된 미생물 광물질을 생성하는 바이오 그라우팅 선처리 단계 및 상기 바이오 그라우팅 선처리 단계 후 합성실리카 용액으로 이루어진 A액과 시멘트와 고로슬래그 미분말, 수산화칼슘용액 및 물이 혼합된 B액과 표면유제처리된 아라미드 섬유파쇄제를 주입관으로 지반에 주입하는 섬유보강 그라우트 주입 후처리 단계로 이루어진 것을 특징으로 하는 바이오 그라우팅 선처리 단계 및 섬유보강 그라우트 주입 후처리 단계로 구성되는 차수 그라우팅 공법에 관한 것으로 그에 따른 효과는 선처리 과정으로 기존 누수 손상 발생부 및 취약부에 탄산칼슘을 생성하여 신속하게 공극을 채우되, 0.6mm 이하의 미세균열을 억제하고, 더불어 후처리공정을 실시하여 지반 균열의 차수 및 보강효과가 높이되, 기존 공법 대비 환경 문제가 발생함을 방지하는 친환경적인 공법이다.
Cutoff Grouting Method Consisting Of Bio-grouting Pre-treatment Step And Fiber-reinforced Grouting Post-treatment Step
바이오 그라우팅 선처리 단계 및 섬유보강 그라우트 주입 후처리 단계로 구성되는 차수 그라우팅 공법
BAEK KYE MOON (author) / PARK KYUNG HO (author)
2020-07-31
Patent
Electronic Resource
Korean
IPC:
E02D
FOUNDATIONS
,
Gründungen
/
C04B
Kalk
,
LIME
/
C12P
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
,
Gärungsverfahren oder Verfahren unter Verwendung von Enzymen zur gezielten Synthese von chemischen Verbindungen oder Zusammensetzungen oder zur Trennung optischer Isomerer aus einer racemischen Mischung
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