What is a shaft and what is its structure?

The shaft is a vertical wellbore with an exit on the surface or underground (the latter is called a blind shaft). It is the most important throat project for large and medium-sized underground mines developed by shafts. It is responsible for the production of surface production systems and underground production systems or underground. The responsibility of connecting between systems.

The shaft can be divided into three parts: the well neck, the well body and the bottom of the well from top to bottom. Wall seats are also built in the appropriate part of the wellbore as needed. A section of the wellbore near the surface is called the well neck, and various openings are often opened in this section. Because the neck part is located in the soft topsoil or weathered rock layer, the ground pressure is large, and there are ground structures and various holes on the neck. The well wall not only needs to be thickened, but also needs to be provided with steel bars. The portion of the wellbore below the neck to the level of the tank entering or exiting the vehicle or the loading level of the bucket is called the wellbore, which is the main component of the wellbore. The depth of the bottom of the well is determined by the height of the elevated roll, the required height of the bottom hole equipment, and the depth of the bottom hole.

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