By using long-lasting injection materials, we will maintain high quality for at least a decade!
The pipeline buoyancy prevention measures involve injecting a chemical solution (hardener) into the soil surrounding existing underground pipes to prevent the buoyancy of these pipes caused by liquefaction during an earthquake. Our company has established a grout injection design method that demonstrates high effectiveness with minimal construction through various experiments, including model tests and vibration tests, in collaboration with the Agricultural Research Organization's Rural Engineering Research Department. 【Applications】 ● Prevention of buoyancy of buried pipes due to ground liquefaction during earthquakes. ● Liquefaction countermeasures at construction sites where excavation is difficult. 【Features】 ● Construction can be performed without excavation. ● The range of ground improvement is minimized. ● By injecting the material at a low discharge rate (2-6 liters/min), it can be reliably permeated into the backfill soil surrounding the buried pipes. ● The spacing between the improved bodies is sufficient to adequately relieve the pore water pressure acting on the improved bodies and buried pipes. ● Using long-lasting injection materials ensures high quality is maintained for at least a decade.
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[Purpose] ● Prevention of buried pipe buoyancy due to ground liquefaction during an earthquake. ● Liquefaction countermeasures at construction sites where excavation is difficult.
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Since its establishment, our company has played a role in national construction, primarily focusing on the "ground improvement field" with our unique grouting method. Subsequently, in response to the changes in social infrastructure development, we have refined our technologies to adapt to the needs of the times and, at times, acquired new ones to expand our business scope. As a result, we have now established three main pillars: "ground improvement business," "slope disaster prevention business," and "pipeline business."