Topsoil as an engineering material – A laboratory analysis

University of Leeds

In regards to the Venture

Within the development of flood retention embankments, the final steerage (from the CIRIA Worldwide Levee Handbook) is that any topsoil beneath the proposed embankment footprint ought to be eliminated previous to development of the embankment. Nevertheless, in a number of current coastal administration schemes inside the UK design proposals have instructed the topsoil to stay in-situ with the purpose of:

1. Scale back the portions of extra materials on the web site which can’t be used as engineering fill. 

2. Scale back the prices of working and re-working the topsoil. 

3. Scale back the quantity of site visitors actions on web site. 

The undertaking will handle that danger, and along with investigating the impact of a steady or discontinuous fuel (air) section, particularly, will purpose to characterise how the natural content material or clay mineralogy in partially saturated, pure topsoil impacts their efficiency as an engineering materials, specializing in compaction, settlement and/or seepage.

It’s unlikely that each one pure supplies can be appropriate to construct upon so the latter half of the undertaking can even contemplate potential floor enchancment strategies (e.g., chemical stabilisation) that can be utilized to enhance the properties of the bottom with out undermining the purpose of decreasing the carbon footprint of those tasks.

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