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Глоссарий
| Глоссарий по проходческим щитам (тоннелингу) |
A diamond core wire line tube drill bit size where the hole diameter is 75.7 mm and the core diameter is 47.6 mm.
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Thrust ring, английский
- A fabricated ring that is mounted on the face of the jacking frame. it is intended to transfer the jacking force from the jacking frame to the thrust-bearing area of the pipe section being jacked.
- A steel ring that is placed against the cross sectional area of the pipe to ensure that the jacking forces are spread around the circumference of the pipe.
Microtunneling, английский
A construction method to install pipe into the ground with no imposed size limitations provided the following are used during construction:
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