Soft ground cutter refers to a rock breaking tool that only rotates with the cutter head and does not rotate. There are many kinds of soft soil cutting tools, and currently commonly used mainly include TBM scraper, edge scraper, cutting knife, rippers, buckets, etc.
The suitable formations are from 15Mpa to 100Mpa, which can be used in the soft ground alone and can also be used as an auxiliary tool for the hard rock.
Feed pressure is one of the three primary controllable parameters in rock drilling, alongside impact pressure and rotational speed. Yet it is perhaps the most misunderstood. Get it wrong, and you will...
Drill rod threads are the most vulnerable part of any drill string. They endure repeated make-up and break-out cycles, high torque loads, abrasive drilling fluids, and the constant stress of downhole ...