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The slurry
pipe jacking method is developed to improved economy, accomplish reliable
execution results and to reduce adverse effects to the surrounding
environment. It is for laying 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 layers to normal soil. It
accomplishes long distance thrust (300m ~ 1000m for 1 span) and enables
replacement of cutter bits at anytime as required. It would cause less
disturbance and inconvenience to the public due to less surface works. Features 1.
The drive system in DH-L installed on the periphery of the machine,
generates high torque. With the attached high-power cone crusher in a
chamber, it is adaptable to large boulder layers as large as 2/3 of the
nominal diameter to 200MPa rock layer. 2.
The cutter bit, when worn out, can be replaced from the inside of the
machine. 3.
Optimum cutters, selected in accordance with the soil property, will offer
effective excavating capacity and reduce surface resistance. 4.
High precise excavation results 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
an optical instrument.
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