奥村組土木興業 List of Products and Services

The "Cosmic Method" allows for low-cost and high-precision construction of long-distance sharp curve propulsion. This method can draw accurate and smooth curves using a curve shaping device, and it enables long-distance propulsion by reducing driving force with a friction reduction device. Additionally, it can accommodate slurry, thick slurry, and earth pressure methods. 【Features】 ■ Compatible with slurry, thick slurry, and earth pressure methods ■ Capable of drawing accurate and smooth curves with the curve shaping device ■ Enables long-distance propulsion by reducing driving force with the friction reduction device *For more details, please refer to the PDF materials or feel free to contact us.

• Other civil engineering works

The "Surfism Minor 2500SM" is a rock cutting machine that allows for precise and efficient excavation work on rock formations. It can continuously perform excavation and fragmentation with a single unit, and after excavation, the particle size of the crushed rock is below 100-150mm, eliminating the need for secondary crushing, allowing it to be used directly as fill material or subgrade material. The right side of the main body has no protrusions from the drive unit, enabling excavation close to slopes, walls, and obstacles. 【Features】 ■ Achieves low noise, low vibration, and low dust ■ Applicable to a wide range of rock formations from soft to hard rock ■ Capable of efficient excavation even in harsh working environments ■ Excellent mobility and maneuverability on site ■ Stable stepped slopes *For more details, please refer to the PDF document or feel free to contact us.

• Rock drills, demolition machines, and excavators
• Civil Engineering Method

It is a technology for economically and reliably constructing long-distance, sharp-curve thrusting works. 【Features】 ● We have actively advanced the development of technologies that respond to long-distance and sharp-curve thrusting methods. ● Development includes friction reduction technology that enables long-distance thrusting, sharp-curve excavation technology and thrusting pipe materials that accommodate sharp curves, and construction management technology using the latest measurement techniques. ● In 2000, we established the Cosmic Method Association to consolidate our developed technologies and construction experience, aiming to promote the method. ● For other functions and details, please contact us.

• Other civil engineering works

The rock mass cutting method is a technique for excavating rock in layers. The thickness of each layer typically ranges from 5 to 30 cm, and the effects of excavating in layers are as follows: 【Features】 ● It does not loosen the rock surface being excavated. ● Due to the effect of excavating thin layers of rock, it produces less noise and vibration compared to general hard rock excavation methods. ● By controlling the thickness of the layers being excavated, the size of the excavated rock can be determined as desired. ● In the case of surface cutting machines, there are no irregularities on the excavation surface, making it easy for vehicles to pass. ● For other functions and details, please contact us.

• Other civil engineering works
• Rock drills, demolition machines, and excavators

Plasma rock fragmentation is a crushing technology that utilizes shock waves generated by plasma. It involves drilling into the target material, such as rock or concrete, and inserting an electrode rod (probe) into the liquid, such as water, filled in the drilled hole. A high-power discharge is performed from this electrode, and the plasma generated at this time expands rapidly, creating a shock wave. This shock wave is transmitted to the surrounding target material, causing fragmentation. 【Features】 ● Low noise and vibration → Minimal impact on nearby structures. ● No scattering → Safety measures such as evacuation are easy to implement. ● Simple principle and structure → Easy to handle in field operations. ● No chemical reactions involved → Does not pollute the surrounding environment. ● For other functions and details, please contact us.

• Other civil engineering works
• Rock drills, demolition machines, and excavators