Sealing Gasket for Shield Tunnel Segments

The core function of tunnel sealing strips is to solve the waterproofing and seepage prevention problems of tunnel structures such as shield tunnel segments and lining joints. They must also adapt to complex tunnel conditions such as structural settlement, vibration, and corrosive environments. Their performance characteristics revolve around sealing reliability, environmental adaptability, and structural compatibility.

High seepage resistance and waterproofing:

They must withstand the pressure of groundwater in the tunnel typically 0.3-1.0 MPa, reaching over 1.5 MPa in special geological conditions. After the strip adheres to the segment/lining joints, it forms a continuous sealing barrier, preventing groundwater and sediment from seeping into the tunnel interior.