... with the existing technologies (according to the state budget), was based on a great investigation and geological, geotechnical and hydrogeological research for the future metro main lines. In structural design, the interaction between the underground structure and surrounding soils was modeled considering...

..., and societal aspects. On the other hand, many problems and issues must be considered when using underground space, including: safety, psychological and health aspects, protection of the underground environment, relations between underground structures and the ground surface, construction techniques, site...

... ABSTRACT: The paper records the intensive monitoring programme planned to control the excavation effects and to ensure the long-term stability of the underground structures of Torrão hydroelectric scheme, including its neighbouring rock slopes. A preliminary analysis of the instrumentation...

... of underground structures. According to the above principle the design scheme (physical problem statement) for an underground structure (hydraulic tunnel) is a pattern of contact lining-rock interaction. The scheme can serve as a basis for a mathematical model of an underground structure (analytical solution...

... of underground structures in three-dimensions particularly in hard rock mines. This method is a combination of analytical approach based on model study of actual underground structures. This application has been used earlier mainly for the simulation of mine-design problems. The main instrument in this technique...

... Concerning the geotechnical study of rock masses for caverns, a commendable rule should be the testing of every zone of the surrounding rock mass, the mechanical characteristics of which one should expect to have Some kind of influence on the behavior r of the underground structure to be designed. However...

... leur consideration pendant l''elaboration du prQjet de l''amenagement hydraulique de Rogoune sur le Vakch dont la caverne puur la salle des machines a une largeur de 28m, une hauteur de 68 met, une longueur de 200m. Construction of underground structures having large sections and which...

... SUMMARY The well understood tendency of placing the systems of underground structures of powerplants in the rock masses with favorable geologic conditions rarely can be realized in practice. Generalization of insitu and model data obtained for already completed projects (in our case...