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Technical Development Trend of tunnel boring machine

Release time:

2023-05-31

Serialization and standardization. The design and manufacturing cycle of tunnel boring machine is shortened, and the after-sales service and maintenance of equipment are more convenient. The current design and manufacturing cycle is generally 8-10 months.

(1) Serialization and standardization. The design and manufacturing cycle of tunnel boring machine is shortened, and the after-sales service and maintenance of equipment are more convenient. The current design and manufacturing cycle is generally 8-10 months.
(2) The basic performance has been improved, including increased tool load capacity, disc thrust, rotational speed and torque, effective excavation ratio, and excavation speed.
(3) Diversified forms. The section diameter range of tunnel boring machine is increased, which can adapt to tunnel excavation of various sections; Excavators with irregular cross-sections such as oval, rectangular, horseshoe, double heating, and triple circular have gradually emerged and developed.
(4) The scope of application has increased, and the geological adaptability has been enhanced.
(5) Improvement of construction technology. In terms of village masonry technology, the current segment lining of tunnel boring machine has many problems such as too many joints and large stagger. Although the stagger is largely limited by adding auxiliary parts such as guide rods and connecting pins, the joint problem is difficult to be solved fundamentally.
(6) The degree of self improvement has increased. At present, people have been able to control the operation of the TBM in the office, and it can be predicted that the future tunnel boring machine can really achieve "planning in the strategy, winning thousands of miles away" and paperless operation.

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