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Model
DH-U Dual Shield for Sharp Curves |
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Features Like
the DH type, DH-U incorporates a cutter disk and also a powerful cutter
motor and cone crusher that can cope with various kinds of soil. The main
body has two direction correction sections each consisting of a
spherically formed structure, enabling the system to cope with sharp
curves as well. The
top of the machine has an inspection hatch to enable wear of the bit to be
checked during long distance propulsion. The use of the dual shield system
increases the work accuracy. By combining a gyro-navigation and data
logging system with the dual shield system, work management is
facilitated. |
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Specifications of DH-U |
| I.D. |
Dimensions
(mm) øDxL |
Weight
(T) |
Power
(kWxset) |
Torque
(kN·m) |
Revolution
(min-1) |
Piping
in Shield Body (mm) |
| 50Hz |
60Hz |
50Hz |
60Hz |
| ø1800 |
2190 x 4770 |
26 |
45 x 2 |
367 |
306 |
2.3 |
2.8 |
150 |
| ø2000 |
2460 x 4810 |
30 |
55 x 2 |
467 |
389 |
1.8 |
2.2 |
150 |
| ø2200 |
2670 x 5000 |
40 |
55 x 2 |
525 |
437 |
2.0 |
2.5 |
150 |
| ø2400 |
2890 x 5285 |
50 |
37 x 4 |
678 |
565 |
2.0 |
2.5 |
150 |
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Pipe
Jacking & Segments |
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The Dual
Shield System is designed for projects which undertake long and sharp
curved pipeline projects. First, the pipe jacking method is adopted over
a fixed distance of a straight line and thereafter the segmental shield
method is adopted to complete the sharp curved section and balance works
of the pipeline construction. This system, which combines the pipe
jacking and segmental shield method, provides a safe, reliable and
economical solution to your pipeline construction works.
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Optimum
Control Machine for Curved Pipe Jacking
The
north seeking gyrocompass is an absolute directional sensor that detects
direction from the North Pole. This sensor has been used with extremely
satisfactory results in curved pipe jacking systems.
Real
time machine coordination and position can be determined by absolute
direction and distance data. This system allows drastic reduction in
survey work.
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Features
* Absolute
direction
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Gyrocompass detects absolute direction.
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Servo
type acceleration meter measures pitch and roll.
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machine position
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Machine position is determined in real time and maintained in accurate
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alignment by the gyrocompass and distance meter.
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efficiency of the work
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Reduction in amount of surveying which improves work efficiency.
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| * Graphical survey
image
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Input
of survey results executes transverse calculation and deviations relative
to
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design
tunnel alignment will be displayed.
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and user-friendly software
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Graphic user interface navigates operator clearly
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Various related values saved in database every 10cm
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EPB & Slurry Type |
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Small Setup Shaft |
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Segments |
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Hole Out |
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Curved Plot 30m radius |
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Contact Timothy Coss, President,
Microtunneling, Inc.
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timcoss@microtunneling.com
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Phone +1 303-444-2650
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Fax +1
303-444-0889
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