Tunnel backfill repair polyurethane injection method "Achilles Tn-p method"
Cost reduction with 40 times high-foaming urethane! Improved workability with compact injection equipment!
The "Achilles Tn-p method," which is a "NETIS utilization promotion technology (formerly registered)," is a tunnel repair technology that involves injecting polyurethane foam into the void behind the tunnel lining for repairs. It is effective in preventing sudden collapse accidents of the ground behind the tunnel lining. With 40 times the expansion of conventional polyurethane, it is economical, and the injection equipment is compact, improving workability. Its lightweight nature reduces the load on the tunnel, and it solidifies in just a few minutes, thereby reducing the risk of accidents caused by material leakage from cracks. 【Features】 ■ The injection equipment is compact, and the injection material is packaged in drums, allowing everything to be loaded onto a single 4-ton truck. ■ Ultra-lightweight, reducing the load on the tunnel lining. ■ Rapid solidification reduces the risk of accidents due to material leakage. ■ Environmentally friendly, using non-fluorinated foam without any fluorocarbons. Achilles also offers "civil engineering methods" beyond tunnel repair technology, including "lightweight embankment construction methods." → "Polyurethane LH method," which sprays on-site polyurethane foam. → "EPS method," which stacks expanded polystyrene blocks. As the only manufacturer capable of providing these two lightweight embankment construction methods, we can propose the most suitable construction methods. *For more details, please refer to the catalog. "Construction examples" are also available! Don't miss this opportunity!
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【Achilles Tn-p Method】 ■Material Properties Original Liquid Name: SK-02 Foaming Ratio: 40 times Foam Density: 30±3 kg/m3 Compressive Strength: 0.14 N/mm2 or more Cream Time: 14±5 seconds Gel Time: 60±10 seconds Flammability: Passes JIS A9511 *In addition to the above, there are types with 12 times, 20 times, and 30 times foaming. *The 40 times foaming also includes winter specifications. 【Urethane LH Method】 ■Features ◎ On-site foamed urethane is sprayed on-site to construct embankments. ◎ Density is about 1/50 that of soil or concrete, making it extremely lightweight. ◎ Shape adaptability allows for embankment construction to fit complex terrain. ◎ Foaming equipment is compact and materials are delivered in liquid form, saving space in the construction yard. ◎ Self-adhesive properties enable the construction of integrated embankments. 【EPS Method】 ■Features ◎ Large foamed polystyrene blocks are stacked to construct embankments. ◎ Density is about 1/100 that of soil or concrete, making it extremely lightweight. ◎ Rapid construction is possible over large areas. ◎ Its self-supporting nature effectively reduces soil pressure. ◎ Manual construction helps mitigate noise. *For more details, please download the catalog or contact us.
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Achilles, with plastic processing technology as its core technology, delivers a wide variety of products that support daily life and industry, ranging from everyday consumer goods to advanced electronic components, to the world.