Abstract
Rubber gasket at joint part of immersed tunnel is required to both bearing capacity of compression force and water-tightness. To cope with large scale earthquake force and large water pressure, three kinds of new type rubber gasket which have large deformation capacity are proposed. Water-tightness test for these rubber gaskets is carried out to know phenomena of water leakage and lateral movement of the rubber gaskets. It is made clear throuh the test that smooth surface of the rubber gaskets gives large lateral movement and stopper is effective to prevent from this lateral movement and water-tightness.
