... grating (FBG) sensors have emerged as a relatively new strain sensing technology for civil engineering applications. This paper presents a field trial to assess the feasibility of using FBG sensor arrays to measure strain in driven steel piles. Two FBG arrays were installed in grooves within the wall...

...Z. X. Yang; R. J. Jardine; W. B. Guo; F. Chow This paper reviews the critical need to develop better load test databases for piles driven in sand before reporting on the significantly augmented, openly accessible, Zhejiang University/Imperial College London (ZJU-ICL) database. Key quality...

...C. W. W. Ng; C. Shi; A. Gunawan; L. Laloui Energy pile foundations can discharge heat into the ground in summer and extract heat from the ground in winter. The cyclic temperature change in piles may induce serviceability problems. At present, the effects of cyclic heating and cooling...

... is a miniature driven pile and this technique permits the monitoring of degradation of sleeve friction and pore pressure development during cyclic loading. It was found that while consistent degradation of measured sleeve friction takes place within a few cycles, this was not associated with an observed pore...

...C. G. Olgun; T. Y. Ozudogru; C. F. Arson This letter shows that the increase of heat exchanger pile capacity in response to heating, observed in several small-scale laboratory studies, cannot be directly attributed to the increase of contact pressure at the soil–pile interface. The main thermo...

...N. Yavari; A. M. Tang; J.-M. Pereira; G. Hassen A commercial numerical code was used to simulate the mechanical behaviour of energy piles under thermo-mechanical loadings. The thermal load was simply simulated by imposing on the pile volumetric strains calculated from the coefficient of thermal...

...W. Li; D. Igoe; K. Gavin Lateral force–displacement (P–y)-based Winkler spring models are commonly applied for the design of piles, P being the soil lateral reaction and y the lateral displacement. Despite their relative simplicity, P–y models...

...H. M. Abuel-Naga; H. A. Shaia The surface topography of fibre-reinforced polymer (FRP) tube confined concrete piles may be significantly altered during the driving installation process. This change could affect the interface pile design parameters and therefore an accurate quantification...

...C. Zhang; Z. X. Yang; G. D. Nguyen; R. J. Jardine; I. Einav This letter extends an earlier theoretical and numerical analysis that aimed to improve predictions for the large-displacement end-bearing capacity of piles in sand by considering the boundary conditions applying to steady penetration...

...D. Pan; J. A. Smethurst; W. Powrie This letter investigates, by means of finite-difference analyses, the ultimate lateral pressure developed on a pile moving relative to a soil whose strength is characterised by an effective angle of shearing resistance φ′. Analyses were carried out to determine...