Abstract The excavation of the tunnel on expressway in northwest Yunnan province induced landslide and a series problem such as ground surface cracks slope, sliding lining. This research aims to reveal interaction relationship between from prospective field monitoring numerical simulation. Firstly, engineering geological conditions slope where was located were obtained by investigation. “landsl...

Leaf-cutting ant queens excavate a founding nest consisting of a vertical tunnel and a final horizontal chamber. Nest foundation is very time consuming, and colony success depends on the excavated depth. Although shallow nests may be energetically cheaper to dig, queens may be more exposed to the changing environment. Deeper chambers, in contrast, may be climatically more stable, but are more e...

The shallow tunnelling method (STM) is usually used to construct tunnels buried in soft ground. It consists of primary lining and secondary (tunnel). In the seismic design STM tunnels, it assumed that (tunnel) resistant all effects. However, soil–primary–secondary system may generate complex interaction phenomena during ground shaking. Compared with case where not considered, existence alters r...

This article presents the horizontal directional drilling (HDD) as one of most suitable technique used to reduce impact on environment during submarine pipe and cable installation process, especially in coastal area shallow waters. HDD is a drill subsea tunnel or under other designated with goal pull facility through drilled underground tunnel. With development offshore natural gas wind industr...