Geo-disaster Modeling and Analysis An SPH-based Approach [Hardcover]

Through application of the Smoothed Particle Hydrodynamics (SPH) method, this monograph mainly focuses on large deformations and flow failure simulations of geomaterials and movement behavior, which are always involved in geo-disasters. The work covers the theoretical background, numerical techniques, code implementation issues, and many novel and interesting applications. Two-dimensional and three-dimensional SPH models in the framework of both hydrodynamics and solid mechanics are established, with detailed descriptions. The monograph also contains many appealing and practical examples of geo-disaster modeling and analysis, including the fluidized movement of flow-like landslides, lateral spread of liquefied soils, and flow slides in landfills. In the documented SPH simulations, the propagation of geo-disasters is effectively reproduced. Dynamic behaviors of geomaterials during propagation are ascertained, including sliding path, flow velocity, maximum distance reached, and distribution of deposits. In this way, the monograph presents a means for mapping hazardous areas, estimating hazard intensity, and identifying and designing appropriate protective measures.

Introduction.- SPH Concept and Essential Formulations.- Basic algorithm of SPH simulation.- The program realization of the SPH method in geotechnical engineering.- Verification and validation of the SPH program.- Analysis of flow slides in municipal solid waste landfills based on SPH method.- Flow analysis of liquefied soil based on SPH method.- Run-out analysis of flow-like landslide based on SPH method.- Conclusions and Expectations.

The first author of this monograph, Professor Yu Huang, born 1973, received his Ph.D. in Geotechnical Engineering from Tongji University, Shanghai, China. He is now a deputy head of that department and a deputy director of the Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education at Tongji University.