2024-01-22
These drill pipe bit fishing methods
In the process of laying large diameter pile foundation of rotary excavator, the accident of burying hole collapse and holding drilling occurs from time to time, but the cause of rotary excavator accident, accident situation and site conditions are not the same, so the measures taken are not the same, sometimes it may be necessary to use several treatment methods. Xiaobian focuses on the description of drilling processing methods, and a detailed description
