Subject: screw blow outs Прошу помочь перевести фразу "screw blow outs" из описания проходки тоннеля:...The TBM was originally designed to mine through running sands, which generally requires no separate water injection to the face Initial advancement rates ranged from approximately 7 - 15 mm/min, with both machine torque and muck temperature being extremely high. The required earth pressure balance was also difficult to achieve and maintain and several screw blow outs had also occurred. Благодарю. |
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