The underground powerhouse of a hydropower station, in the form cavern group, is generally characterized by large scale and complicated spatial structure. During construction phase, extensive excavation limited space may cause multi-cavern effect between adjacent caverns thus lead to deformation failure surrounding rock mass, which undoubtedly compromises stability safety. This paper takes drai...

The presence of a high concentration Cl− in saltwater will erode the structure and facilities, reducing stability service life underground oil storage cavern. In order to reduce risk seawater intrusion, this paper studies prevention technology intrusion based on case study coastal large-span A refined three-dimensional hydrogeological model that comprehensively considers permeability coefficien...

The aim of this paper is to evaluate the overall life cycle environmental impact an adiabatic compressed air energy storage (ACAES) system, which designed achieve best match between power production a photovoltaic (PV) plant and demand from final user. electrical small town, with maximum load about 10 MW, considered case study. ACAES system compressor-rated MW charging discharging times 24 h, r...

Future space ventures will likely require exploitation of near-Earth asteroid resources. Moreover, it can be envisaged that asteroids may host habitats in their interiors. In fact, a cavern inside an would natural radiation shield against cosmic and also serve as confined environment for storage mined material such water ice or other processed volatiles propellants. To this end, paper proposes ...