A partial-section TBM is a mechanical equipment used for tunnel and underground engineering construction. Its main function is to dig and support the tunnel section. Unlike full-section TBMs (such as shield machines), partial-section TBMs (also called local-section TBMs) can only dig a part of the tunnel section and are usually used for small-diameter tunnels, tunnels with irregular cross-section shapes or tunnel construction under complex geological conditions.

   A partial-section TBM is a tunneling equipment that gradually breaks down the rock or coal seam of a partial section of the tunnel by swinging, and finally completes the full-section cutting. This equipment plays an important role in mining and tunnel construction, and is highly favored for its efficient and flexible working methods.

   Advantages and features

   High flexibility: Partial-section TBMs can adjust their working methods according to different geological conditions and tunneling needs, and have strong adaptability.

   High efficiency: Through sequential cutting and layer-by-layer crushing, the partial-section TBM can achieve efficient tunneling, which is particularly suitable for work under complex geological conditions.

   Easy equipment maintenance: Since the gradual excavation reduces the impact and wear on the equipment, the partial-section TBM has a long service life and low maintenance cost.

   High safety: The layer-by-layer excavation method can effectively reduce the risk of collapse that may occur during tunneling and improve construction safety.

   Application field

   Partial-section TBM is widely used in the fields of mining and tunnel construction. In mining, it is mainly used for tunneling in coal mines, metal mines, etc. In tunnel construction, the partial-section TBM can adapt to different geological conditions and carry out efficient and precise tunnel excavation. In addition, this equipment is also suitable for other fields such as underground engineering and municipal construction.

   As an efficient, flexible and safe tunneling equipment, the partial-section TBM has broad application prospects and development potential in mining and tunnel construction. With the continuous advancement of technology, it will play an important role in more fields and provide more efficient and reliable solutions for underground engineering construction.