Uhlemann S. Construction, management and maintenance of embankments used for road and rail infras... more Uhlemann S. Construction, management and maintenance of embankments used for road and rail infrastructure: implications of weather induced pore water pressures. Acta Geotechnica 2014, 9(5), 799-816.
ABSTRACT: The Intergovernmental Panel on Climate Change (IPCC) provides convincing evidence of gl... more ABSTRACT: The Intergovernmental Panel on Climate Change (IPCC) provides convincing evidence of global warming as a result of increased greenhouse gas production. There has been a greater occurrence of extreme climate events in recent decades. We need to ensure that our buildings and infrastructure can cope with such events and possibly more extreme events in the future. A good grounding in unsaturated soil mechanics will be necessary to understand future changes involving the drying and desiccation of soils that will occur in ...
The Geological Society of London, Engineering Geology Special Publications, 26: 151–161, 2012
Climate change has the potential to have significant effects on the stability and serviceability ... more Climate change has the potential to have significant effects on the stability and serviceability of earthworks slopes, impacting on the performance of transport infrastructures. This paper describes how a unique facility for engineering and biological research was established in NE England through the BIONICS Project (Biological and Engineering Impacts of Climate Change on Slopes). It describes the building and monitoring of a full-scale embankment representative of road/rail embankments in the UK. The paper presents the results of monitoring of pore water pressure carried out between 2007 and 2009. The pore water pressures within the upper 3 m of the embankment have been largely positive, in some case approaching hydrostatic conditions after wetter periods. This is largely due to the wet nature of the summers in both 2007 and 2008 since monitoring began, as well as the application of artificial inundation using a climate control system. Negative pore water pressures (suctions) of the order of 230 kPa were recorded at greater depths below 3 m. The experimental facility provides essential field measurements that can be used to calibrate numerical models of soil responses to climatic changes and gain a better understanding of the response of engineered UK fills to climate events.
... Lourenço (2008) reports that tests carried out using a tensiometer took less than 7 days (in ... more ... Lourenço (2008) reports that tests carried out using a tensiometer took less than 7 days (in some cases as little as 2 days), whereas a pressure plate test on the same material took 7 weeks to perform. ... Lourenço et al. (2006), 1500, 2000, 5, Ceramic transducer, -. Meilani et al. ...
Uhlemann S. Construction, management and maintenance of embankments used for road and rail infras... more Uhlemann S. Construction, management and maintenance of embankments used for road and rail infrastructure: implications of weather induced pore water pressures. Acta Geotechnica 2014, 9(5), 799-816.
ABSTRACT: The Intergovernmental Panel on Climate Change (IPCC) provides convincing evidence of gl... more ABSTRACT: The Intergovernmental Panel on Climate Change (IPCC) provides convincing evidence of global warming as a result of increased greenhouse gas production. There has been a greater occurrence of extreme climate events in recent decades. We need to ensure that our buildings and infrastructure can cope with such events and possibly more extreme events in the future. A good grounding in unsaturated soil mechanics will be necessary to understand future changes involving the drying and desiccation of soils that will occur in ...
The Geological Society of London, Engineering Geology Special Publications, 26: 151–161, 2012
Climate change has the potential to have significant effects on the stability and serviceability ... more Climate change has the potential to have significant effects on the stability and serviceability of earthworks slopes, impacting on the performance of transport infrastructures. This paper describes how a unique facility for engineering and biological research was established in NE England through the BIONICS Project (Biological and Engineering Impacts of Climate Change on Slopes). It describes the building and monitoring of a full-scale embankment representative of road/rail embankments in the UK. The paper presents the results of monitoring of pore water pressure carried out between 2007 and 2009. The pore water pressures within the upper 3 m of the embankment have been largely positive, in some case approaching hydrostatic conditions after wetter periods. This is largely due to the wet nature of the summers in both 2007 and 2008 since monitoring began, as well as the application of artificial inundation using a climate control system. Negative pore water pressures (suctions) of the order of 230 kPa were recorded at greater depths below 3 m. The experimental facility provides essential field measurements that can be used to calibrate numerical models of soil responses to climatic changes and gain a better understanding of the response of engineered UK fills to climate events.
... Lourenço (2008) reports that tests carried out using a tensiometer took less than 7 days (in ... more ... Lourenço (2008) reports that tests carried out using a tensiometer took less than 7 days (in some cases as little as 2 days), whereas a pressure plate test on the same material took 7 weeks to perform. ... Lourenço et al. (2006), 1500, 2000, 5, Ceramic transducer, -. Meilani et al. ...
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