Experimental Study on the Shear Strength and Failure Mechanism of Cemented Soil-Concrete Interface.

Cement is always used in underground construction to reinforce and improve soft clay, resulting in the formation of a cemented soil-concrete interface. It is of great importance to study interface shear strength and failure mechanisms. So, in order to figure out the failure mechanism and characteristics of a cemented soil-concrete interface, a series of large-scale shear tests of a cemented soil-concrete interface, and corresponding unconfined compressive tests and direct shear tests of cemented soil, were carried out specifically under different impact factors.

Durability evaluation of highway tunnel lining structure based on matter element extension-simple correlation function method-cloud model: A case study.

With the acceleration of infrastructure construction in various countries, more and more highway tunnels have been built. As a permanent structure to maintain the long-term stability and durability of the tunnel, the tunnel lining structure (TLS) is prone to durability damage in the later operation process, which affects the safety of traffic and the whole loading capacity of the tunnel, so it is very important to evaluate the durability of the TLS. Nowadays, the TLS durability evaluation methods ignore the ambiguity and randomness of the lining structure (LS) durability evaluation index, which have certain limitations.