Relative density correlations are not reliable criteria
MetadataShow full item record
Permission is granted by ICE Publishing to print one copy for personal use. Any other use of these PDF files is subject to reprint fees.
The concept of relative density was developed with the intention of appropriately defining looseness and denseness of sand or sand–gravel soils in a meaningful way; however, there are sufficient amounts of research and case studies to demonstrate the unreliability of this concept due to its large inherent errors. Nevertheless, this parameter found its way early on as a ground improvement acceptance criterion based on the same philosophy that led to its formation. As there was general agreement among engineers that, in any case, direct testing of relative density in actual deep ground improvement projects was difficult, time consuming and costly, direct methods of relative density measurement were abandoned in favour of correlation to other field tests. At first glance, this may have seemed to work out quite well as the conceptual unreliability of relative density did not come into play, but a deeper look could reveal that the proposed correlations are also as unreliable as the concept itself. This paper will discuss the reasons why relative density correlations should not be used as ground improvement acceptance criteria, and alternative reliable criteria will be proposed.
Showing items related by title, author, creator and subject.
Determination of residual gas saturation and gas-water relative permeability in water-driven gas reservoirs.Mulyadi, Henny (2002)The research on Determination of Residual Gas Saturation and Gas-Water Relative Permeability in Water-Driven Gas Reservoirs is divided into four stages: literature research, core-flooding experiments, development and ...
Parsons, Miles James Gerard (2009)Techniques of single- and multi-beam active acoustics and the passive recording of fish vocalisations were employed to evaluate the benefits and limitations of each technique as a method for assessing and monitoring fish ...
Water quality, growth and stress responses of juvenile barramundi (Lates calcarifer Bloch), reared at four different densities in integrated recirculating aquaculture systemsArdiansyah; Fotedar, Ravi (2016)Integrated recirculating aquaculture systems (IRASs) were developed to overcome the problems of nutrient overloading and to address the issues of animal welfare in recirculating aquaculture systems. Barramundi (Lates ...