Abstract: This paper presents a case history of the successful application of observational method to instruction microtunneling with successive pipe-jacking. The microtunneling project is the construction of four parallel pipes ...

Abstract: The degradation mechanism of ethylene–propylene–diene monomer (EPDM), when used as a sealant material for shield tunnels, must be known to assess of the service life of sealant gaskets. This paper presents a series of ...