Slurry pipe jacking method is developed to improve economy as well as to accomplish reliable execution result and to reduce adverse effect to the surrounding environment. It is for laying supply water pipe, electrical or gas piping or communication network lines.

This machine employed in this method is applicable to a variety of soil property ranging from rock or boulder layer to normal soil.
It accomplishes long distance thrust(300m-1000m for 1span) and enables replacement of cutter bit at anytime as required.
It would cause less disturbance and inconvenience to the public due to less surface works.

1. Drive system in DH-L, installed on the periphery of the machine, generates high torque.
   With attached high-power cone crusher in a chamber, it is adaptable to large boulder layer as large as 2/3 of the normal diameter to 200MPa rock layer.
2. Cutter bit, when worn out, can be replaced from inside of the machine.
3. Optimum cutter selected in accordance with the soil property will offer effective excavating capacity and reduces surface resistance.
4. High precise excavation result can be obtained not only for linear excavation but for curved excavation with its effective center-bending method steering mechanism, thrust angle sensor and detective system using optical instrument.