Cyclic relationship between saturation and tensile strength in the near-surface zone of infrastructure embankments

Stirling, Ross; Hughes, Paul; Davie, CT; Glendinning, S. G.

doi:10.1201/b17034-219

Cited by 4 publications

(2 citation statements)

References 5 publications

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“…The tensile strength trend with hydraulic cycling is presented in Figure 11, after Stirling et al (2014) and shows a similar trend of deterioration with increasing cycles of wetting and drying behaviour to the undrained shear strength data presented above. …”

Section: Drained Stress Path Testing -Strength Reduction Due To Cyclesupporting

confidence: 65%

Research-informed design, management and maintenance of infrastructure slopes: development of a multi-scalar approach

Glendinning¹,

Helm²,

Rouainia³

et al. 2015

IOP Conf. Ser.: Earth Environ. Sci.

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Abstract. The UK's transport infrastructure is one of the most heavily used in the world. The performance of these networks is critically dependent on the performance of cutting and embankment slopes which make up £20B of the £60B asset value of major highway infrastructure alone. The rail network in particular is also one of the oldest in the world: many of these slopes are suffering high incidents of instability (increasing with time). This paper describes the development of a fundamental understanding of earthwork material and system behaviour, through the systematic integration of research across a range of spatial and temporal scales. Spatially these range from microscopic studies of soil fabric, through elemental materials behaviour to whole slope modelling and monitoring and scaling up to transport networks. Temporally, historical and current weather event sequences are being used to understand and model soil deterioration processes, and climate change scenarios to examine their potential effects on slope performance in futures up to and including the 2080s. The outputs of this research are being mapped onto the different spatial and temporal scales of infrastructure slope asset management to inform the design of new slopes through to changing the way in which investment is made into aging assets. The aim ultimately is to help create a more reliable, cost effective, safer and more resilient transport system.

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Section: Drained Stress Path Testing -Strength Reduction Due To Cyclesupporting

confidence: 65%

Research-informed design, management and maintenance of infrastructure slopes: development of a multi-scalar approach

Glendinning¹,

Helm²,

Rouainia³

et al. 2015

IOP Conf. Ser.: Earth Environ. Sci.

Self Cite

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“…This system has one big advantage that it permits the rig to be returned to its main purposes by simply lifting out the loading jaws. More details on the design can be found in Stirling et al, (2014Stirling et al, ( , 2015.…”

Section: Direct Measurement Equipmentmentioning

confidence: 99%

Laboratory Tensile Strength Testing of Clay Soils using Direct Measurement

Pembele

Gui

Stirling

2019

JGS Special Publication

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Clay has wide application in engineered barriers, such as buffer barriers in deep geological nuclear waste disposal, clay liners in landfill, and earthen slopes and embankments, to name a few. However, most clay soils have a high potential to crack under extreme weather induced moisture loss. From a macro-mechanical view, clay tensile strength which is a critical factor governing the cracking behavior is highly dependent on the moisture content and corresponding matric suction. In this study, a series of laboratory tests on two typical clays (kaolinite and sodium bentonite) were carried out to investigate the relationship between clay tensile strength and moisture content by using a specially designed device which can measure tensile strength directly (Stirling et al. 2014, 2015). In addition, the study also investigated the effect of silica sand additive on the tensile strength at a wide range of moisture contents. The results demonstrate that both moisture content and sand additive have a significant impact on the measured tensile strength of the clays.

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Obtaining Suction Distribution Within Vadose Zone of Highway Pavement System in Southwestern Nigeria Using Physico-Empirical Approach

et al. 2021

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Cyclic relationship between saturation and tensile strength in the near-surface zone of infrastructure embankments

Cited by 4 publications

References 5 publications

Research-informed design, management and maintenance of infrastructure slopes: development of a multi-scalar approach

Research-informed design, management and maintenance of infrastructure slopes: development of a multi-scalar approach

Laboratory Tensile Strength Testing of Clay Soils using Direct Measurement

Obtaining Suction Distribution Within Vadose Zone of Highway Pavement System in Southwestern Nigeria Using Physico-Empirical Approach

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