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Causes and treatment scheme of drill pipe sticking of rotary digging machine
Release time:
2018-09-17
Author:
Source:
Rotary drilling machine has the characteristics of large installed power, large output torque, large axial pressure, flexible, high construction efficiency, and environmental protection. With different drilling tools, it can be said that it is the most ideal machine for hole-forming work in construction projects. Also because of its high efficiency, environmental protection, high efficiency advantages, access to the construction unit. The problem of sticking in the process of work should be dealt with according to the depth of sticking, formation and other related factors, and corresponding countermeasures should be taken. The following is a specific look at the reasons for the sticking of the drill pipe of the rotary excavator and how to solve the sticking. 1, due to hole collapse or equipment itself caused by sticking drill, sediment thickness is large, to first clean the hole, and then use the drilling rig or auxiliary
The problem of sticking in the process of work should be dealt with according to the depth of sticking, formation and other related factors, and corresponding countermeasures should be taken. The following is a specific look at the reasons for the sticking of the drill pipe of the rotary excavator and how to solve the sticking.
1. If the drill is stuck due to hole collapse or equipment itself, the sediment thickness is large, the hole should be cleaned first, and then the drill or auxiliary equipment should be used for treatment.
2, due to non-collapse factors caused by the stuck drill, sediment is not much, should first take self-rescue measures, in addition to moderate lifting drill pipe, in order to increase the lifting capacity of the drill pipe, the above methods can only be used in the initial stage of stuck drill.
3. If self-rescue is ineffective, auxiliary equipment shall be used for treatment. The methods mainly include direct lifting method, dredging method around drill bit and wall protection excavation method.
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