Closure to “Pile Setup in Cohesive Soil. I: Experimental Investigation” by Kam W. Ng, Matthew Roling, Sherif S. AbdelSalam, Muhannad T. Suleiman, and Sri Sritharan

Ng, Kam; Roling, Matthew; AbdelSalam, Sherif S.; Suleiman, Muhannad T.; Sritharan, Sri

doi:10.1061/(asce)gt.1943-5606.0001064

Cited by 2 publications

(3 citation statements)

References 3 publications

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“…The cross-section view of the location of the strain gages and accelerometers is given in Figure 6-6. Notice that the accelerometers are on opposite sides of the web of the pile as was done by Ng et al (2011). The data gathered by the PDA equipment was wirelessly transmitted to the PDA unit, same as for the UHPC test piles.…”

Section: Hp 10 X 57 Production Pilesmentioning

confidence: 99%

“…The CAPWAP analysis was completed using a Case damping factor of 0.166. (Ng et al 2011) The vertical load test that was performed on P3, which was 10 feet shorter than UW1-2 produced a vertical capacity of 296.5 kips. P3 and UW1-2 are comparable in length because the 10-ft reduction in length of P3 was to account for the prebore hole of UW1-2.…”

Section: Uhpc Production Pilementioning

confidence: 99%

“…The vertical load test was performed eight days after the EOD, while the CAPWAP predicted capacity of UW1-2 was from a restrike three days after EOD. The difference in the amount of time after EOD for measuring or predicting the nominal capacity could account a portion of the 39 percent difference in capacity due to the effect of setup in clays (Ng et al 2011).…”

Section: Uhpc Production Pilementioning

confidence: 99%

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Use of UHPC piles in integral abutment bridges

Garder

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Section: Hp 10 X 57 Production Pilesmentioning

confidence: 99%

Section: Uhpc Production Pilementioning

confidence: 99%

Section: Uhpc Production Pilementioning

confidence: 99%

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Use of UHPC piles in integral abutment bridges

Garder

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Implementation of biocementation for a partially saturated problematic soil of the UK railway network

et al. 2020

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This paper refers to biocementation of a problematic soil of the UK railway network as a potential stabilisation technique of this soil using indigenous ureolytic bacteria. The soil is peat, a soft foundation soil also subject to oxidation wastage. As the peat is under existing embankments, electrokinetics (EK) is proposed as a promising technique to implement treatments. In the context of unsaturated soils the paper thus focuses on two particular aspects relevant for the implementation of treatments and the stability of this soil, namely: a) the effect of degree of saturation of the peat on the bio-electrokinetic treatment ; b) the soil water retention curve of the soil affecting flow and transport; these are relevant as we focus on understanding and modelling the implementation of treatments through electrokinetics; moreover for the peat it is of importance to understand moisture exchange in the vadose zone and control groundwater table levels (e.g. during electrokinetics) in order to prevent further oxidation. After isolation and screening of indigenous microorgansisms Bacillus licheniformis was selected for further testing. The results in terms of unconfined compressive strength, CaCO3 content, swelling and compression behaviour and water retention proved the feasibility of biocementation using this indigenous microorganism. Ongoing work is assessing the required treated soil characteristics and related required biocementation degree to solve UK rail's peat foundation problems. Upscaling of the techniques towards in situ implementation is also planned in the next stage of the research.

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Closure to “Pile Setup in Cohesive Soil. I: Experimental Investigation” by Kam W. Ng, Matthew Roling, Sherif S. AbdelSalam, Muhannad T. Suleiman, and Sri Sritharan

Cited by 2 publications

References 3 publications

Use of UHPC piles in integral abutment bridges

Use of UHPC piles in integral abutment bridges

Implementation of biocementation for a partially saturated problematic soil of the UK railway network

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