List of products by author: T. Shirai

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  Experimental study to accurate the gasket factor for segmental linings

  Abstract: Elastomeric (rubber) gasket is generally used as a water tightening material for segmental linings in shield tunnels. Maximum allowable water pressure of the gasket can be calculated using the principle equation. The gasket factor depends on the profile of the gasket, the dimension of the groove on the segment, compression rate of the gasket and the value of the gap and offset (displacements...

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  Implementation of Seismic Joints in Istanbul Strait Road Tube Crossing Project

  Abstract: Seismic Joints are defined as, steel-rubber composite flexible rings that allow in and out of plane movement resulting from seismic events. Although implementation of Seismic Joints as flexible rings of bored tunnels is quite rare, globally there have been several successful applications in Japan. This paper discusses the implementation steps of two unique Seismic Joints of bored tunnel of...

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