Special Issue on Building and infrastructure response to ground movement: bridging the gap between geotechnical and structural modelling of SSI
• 大类 : 工程技术 - 3区
• 小类 : 结构与建筑技术 - 3区
• 小类 : 工程：土木 - 2区
Problem There are many cases in which tunnels, foundations and other underground constructions are subjected to soil movements and passive loadings (which can be due to tunnelling, mining, deep excavations, sinkholes, consolidation, slope movements, landslides). Consequently, engineers need to predict the resulting SSI that has potentially detrimental effects on both the foundation and the structures above and below ground.
Current practice Although fully coupled soil-structure interaction models have been successfully developed by researchers and practitioners in the recent years, when possible geotechnical engineers rely on empirical rules and decoupled models to predict movements of foundations and subsurface structures, while structural engineers evaluate damage and distortions by performing decoupled analyses of the structures by imposing displacement profile at the soil-structure interface. When fully coupled soil-structure interaction models are recommended by guidelines, no specific indications on the required level of details are provided. Hence, there is a need to better identify the key aspects to be considered for integrated geotechnical and structural interaction models.
Goal This special issue of Tunnelling and Underground Space Technology will discuss viable approaches, with varying level of complexity, when performing advanced coupled numerical analyses of the soil-foundation-structure interaction rising from ground movements. The aim is to identify key aspects that need to be accounted for in the geotechnical and structural domains to achieve an optimal level of complexity for reliable and still accurate predictions. In particular, to evaluate the impact of accounting for detailed geotechnical and structural aspects on the SSI and the associated risk for losses of serviceability performance, researchers are invited to compare their SSI model results against predictions obtained with current simple routine design approaches (among others, estimations inferred from empirical approaches and/or results obtained from the assumption of fully flexible structures or equivalent linear elastic solids).