Small-diameter long-distance curved propulsion (slurry method project) "JAT method"

Yasuda Engineering showcased the underground obstacle-responsive mud-based thrusting method, featuring the milling mole method and the jet method, which uses a CCD camera sensor to instantly measure the position of the tunneling machine on sharp curves! 【Exhibited Products】 ■ Underground Obstacle-Responsive Mud-Based Thrusting Method The milling mole method is used in urban development and is a mud-based thrusting method that safely conducts construction by cutting through obstacles that remain underground. It can detect obstacles ahead of the thrusting excavation and discharge them as cutting powder of about 1 cm, and if necessary, it allows for the injection of chemical solutions from within the machine and guidance of the tunneling machine using GPS. ■ Jet Method The jet method, which uses a CCD camera sensor to instantly measure the position of the tunneling machine on sharp curves, enables long-distance and sharp curve construction in small-diameter thrusting. By using a dedicated pump tube and lubricant injection pipe for the jet method, it reduces the load on the pipe, making long-distance thrusting possible even with small diameters. It is the most excellent all-around thrusting method that does not limit construction sites due to internal measurements of the pipe.

＊＊＊＊＊＊＊　　　　Exhibition at the Sewerage Exhibition　　　　＊＊＊＊＊＊＊＊ Yasuda Engineering showcased the underground obstacle-responsive mud slurry thrusting method, featuring the milling mole method and the JET method, which uses CCD camera sensors to instantly measure the position of the tunneling machine on sharp curves! 【Exhibited Products】 ■ Underground Obstacle-Responsive Mud Slurry Thrusting Method The milling mole method is used in urban development and safely carries out thrusting work by cutting through and penetrating obstacles that remain underground. It can detect obstacles ahead of the thrusting excavation and discharge them as cutting powder of about 1 cm, and if necessary, it allows for chemical injection from within the machine and guidance of the tunneling machine using GPS. ■ JET Method The JET method uses CCD camera sensors to instantly measure the position of the tunneling machine on sharp curves. It enables long-distance and sharp curve construction in small-diameter thrusting. By using a dedicated pump tube and lubricant injection pipe for the JET method, it reduces the load on the pipe, allowing for long-distance thrusting even with small diameters. It is the most excellent all-around thrusting method that does not limit construction locations due to internal measurements.

***Leave long-distance and sharp curve construction in small-diameter propulsion to the JET method!*** The JET method is a type of propulsion construction that digs pipelines for sewage, water, gas, and electricity using a small shield machine. It is a groundbreaking method that enables long distances, sharp curves, and deep depths despite its small diameter. With the technology of the JET method, excavation from the ground is minimized, reducing noise and dust associated with construction, and minimizing road occupation. Instead of ground measurements, it uses in-pit surveying from the launch shaft with a CCD camera sensor, so it is not affected by buried objects, electric wires, or tracks. Measurements can be taken without being influenced by external factors such as under rivers, beneath railway tracks, under busy roads, and deep soil cover propulsion. 【Features】 ■ Supports high-depth propulsion ■ Simple structure and easy handling ■ Three-dimensional traverse surveying with high-resolution CCD camera sensors ■ Roll conveyor rail (patented) ■ Capable of handling a wide range of soil types For more details, please refer to the catalog or feel free to contact us.