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Mobilisable strength design for retaining walls and introduction of software PROWD

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  • UserDr Chuhan Deng, Research Associate, University of Cambridge, UK
  • ClockWednesday 10 November 2021, 19:00-20:00
  • HouseVenue to be confirmed.

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Design of retaining walls is typically based on ultimate limit state (ULS) calculations to prevent collapse, with factors of safety used to limit deformations. These factors of safety do not take into account the different rates of strength mobilisation in the wide variety of soils found worldwide. As there is substantial uncertainty in this approach, conventional design tends to lead to excessive conservatism with associated high cost. This seminar focuses on the development of a performance-based design method for propped and cantilever flexible retaining walls in both sand and clay, based on the soil deformation mechanism and earth pressure behaviour mobilised with rigid wall movements. The performance of the design method is validated by comparison with field and centrifuge case histories. Furthermore, this seminar introduces an original software, Program of Retaining Wall Design (PROWD), which is developed based on the performance-based design method.

This talk is part of the Engineering Department Geotechnical Research Seminars series.

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