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List of products by author: M. Sugimoto
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3D FEM analysis on the measured earth pressure on lining considering initial ground displacement
Abstract: As the rapid expansion of urban area, the demand of infrastructure projects has increased continuously, while land area is limited. Therefore, the underground construction has become one alternative. Consequently, shield tunnelling method has become the major construction method in urban area, since this method can minimize ground disturbance and also influence to neighboring structures. This...
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Development of Performance-Based Tunnel Evaluation Methodology and Performance Evaluation of Existing Road Tunnels
Abstract: The concept of performance-based design, which mainly focuses on mechanical performance, has become the international standard, as in the case for International Standards organisation (ISO). The standardization of tunnel design has not been achieved because it requires the integration of separate specialized fields, such as geotechnical engineering, structural engineering and concrete...
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Influence of Ground Stiffness on HandV Shield Behavior
Abstract: Shield tunnelling technology has been widely used in soft ground conditions to minimize the ground movement and the damage to neighboring structures around a tunnel. Due to limited underground space in urban area and for saving construction cost, multi circular face shield (MF shield) had been innovated to construct a twin tunnel at once. Furthermore, according to the more severe restriction of...
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Simulation on Shield Behaviour at a Sharp Curve by Kinematic Shield Model
Abstract: Due to ongoing development of shield tunneling technologies, usage of more complicated tunnel alignments is increasing. Excavation at a sharper curve needs proper steering of shield machines. Shield behavior is controlled usually by copy cutter, articulation mechanism, and jack force and moment. Then the kinematic shield model, which can take shield operation including the above shield...
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Study on chamber pressure and slurry level of mixed shield by prototype test
Abstract: Nowadays, more precise control method on face pressure of slurry shield is beingadopted, combining air pressure control at the upper part of an air chamber with conventional slurry flow control. To grasp the feature and the control method of the air combined system, a prototype test was carried out using the model, which is composed of a cutter chamber, an air chamber, a slurry circulation...
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Study on steering method of H and V shield to construct a spiral tunnel
Abstract: Due to limited underground space in urban area and for saving construction cost, multi circular face shield (MF shield) [1] had been innovated to construct a twin tunnel at once. Furthermore, according to the more severe restriction of underground space use, horizontal and vertical variation shield method (H&V shield) [2] was innovated, so that the cross section of a MF shield tunnel is...
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