2018年4月1日 · In this paper, the cutterhead torque of the modified earth pressure balance (EPB) tunnel-boring machine (TBM) in mixed-face ground is analyzed. The theoretical model of the cutterhead torque of EPB TBM in single soft ground is generalized to the mixed-face ground.

2024年4月1日 · In EPB TBM tunnelling active tunnel face support is achieved in soft and mixed ground or weak and unstable rock by generating a pressurized earth paste in the tool gap and excavation chamber of the machine. Complexity arises due to tribological and rheological effects of the active tunnel face support.

2022年4月26日 · The EPB TBM turns the excavated material into a soil paste that is used as a pliable, plastic support medium. This makes it possible to balance the pressure conditions at the tunnel face, avoid uncontrolled soil inflow into the machine and create the right conditions for rapid tunnelling with the minimum settlement.

2024年6月15日 · The EPB-TBM is a specialized type of TBM designed for excavating tunnels in soft ground conditions where there is a high risk of ground settlement or water ingress. The methodology of an EPB-TBM involves a unique process that allows for safe and efficient tunnel excavation in challenging geological conditions [ 1 ].

The radial opening ratio should be fully considered when designing TBM cutterheads. The opening ratio of cutterheads, the area ratio of the cutterhead openings to the entire cutterhead, is an important index for selection of earth pressure balanced (EPB) TBM.

Geosynthetic materials have transformed tunnel engineering into a precision science, resolving historical dilemmas of waterproofing, ground stabilization, and environmental impact. The integration of smart technologies and sustainable materials promises to redefine underground construction standards global.

2013年3月27日 · 본 발명은 터널 보링머신(Tunnel Boring Machine, TBM)에 장착하여 전방의 지질을 예측할 수 있도록 구성되는 전방 지질 예측을 위한 선진 시추공을 이용한 TBM 장착 지반평가 시스템 및 이를 이용한 터널 시공장치 및 방법에 관한 것으로, 본 발명에 따르면, 굴착 단면을 ...

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2025年1月4日 · 欧洲中央银行（法语： Banque Centrale Européenne ；德语： Europäische Zentralbank ；英语： European Central Bank ），简称欧洲央行、ECB，为欧盟 欧元区的中央银行，负责欧元区的金融及货币政策，总仓位于德国 法兰克福，成立于1998年6月1日。

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