Institution of Civil Engineers Yorkshire Geotechnical Group - Innovation in Geotechnics Event
LimitState Presentation: Advances in geotechnical limit analysis
Limit analysis has for many decades played an important role in geotechnical engineering practice. To extend the usefulness of traditional hand-based limit analysis methods, a variety of computational limit analysis methods have recently been successfully developed. In particular, the recently developed Discontinuity Layout Optimization (DLO) analysis procedure now provides geotechnical engineers with a very powerful means of assessing the stability of slopes, retaining walls, footings and virtually any other geotechnical feature, including those incorporating soil reinforcement.
In the presentation, details of the DLO procedure will be described and the DLO-based LimitState:GEO software will be applied to various design problems to illustrate how effectively the new tool bridges the gap between existing single application hand-type analysis methods and those based on much more complex incremental analysis methods (e.g. non-linear finite element analysis). The emphasis will be on practical assessment of the Ultimate Limit State (ULS), covering appropriate problem definition for a range of ULS design problems and application in accordance with Eurocode 7.
Outline Schedule of Event
Managing the Innovation Process
The first session will present two examples of management of the innovation process, from initial concept through prototype to commercial application. The presentations will aim to demonstrate some of the pitfalls of the innovation process as well as its successful application.
New Possibilities from Developments in IT and Computing Power
The increase in computing power has led to increasing scope for data gathering, storage and manipulation, and for the use of numerical methods. The former is illustrated by an example of Asset Management System and the latter by a new analytical method.
Innovation as a Response to Specific Problems
Specific problems for which existing solutions are inadequate in one way or another can lead to the development of innovative solutions. There will be two presentations each demonstrating examples of this process.
- Martin Pedley (Cementation Skanska) will give the keynote address.
- David Puller (Bachy)
- Dimiter Alexiew (Huesker)
- Steve Hall (Network Rail) and Steve Corbett (Aecom)
- Matthew Gilbert and Colin Smith (LimitState)
- Dan Adams (Keller)
- Viv Troughton (Stent)