END BEARING CAPACITY OF PILES IN CARBONATE SOILS by Houlsby, G, Nutt, N, Sweeney, M, ICSMFE

Ground characterisation for PISA pile testing and analysis by Zdravković, L, Jardine, R, Taborda, D, Abadias, D, Burd, H, Byrne, B, Gavin, K, Houlsby, G, Igoe, D, Liu, T, Martin, C, McAdam, R, Muir Wood, A, Potts, D, Skov Gretlund, J, Ushev, E

“…PISA involved large-scale pile tests in overconsolidated glacial till at Cowden, north-east England, and in dense, normally consolidated marine sand at Dunkirk, northern France. …”

ONE-DIMENSIONAL ANALYSIS OF SOIL PLUGS IN PIPE PILES by Randolph, M, Leong, E, Houlsby, G

“…Under static loading in compression, open-ended piles may fail in a plugged mode, with the soil plug moving with the pile, or in an unplugged mode, with shear failure occurring between the soil plug and the pile shaft. …”

Axial response of offshore jacket piles supporting wind turbines by Joseph, T

Subjects: “…One dimensional finite element analysis of the soil plug in open-ended piles…”

Rigid pile response to cyclic lateral loading: laboratory tests by Abadie, C, Byrne, B, Houlsby, G

“…The test programme is designed to identify the key mechanisms governing pile response, and is divided into four main parts: (a) investigation of loading rate effects; (b) hysteretic behaviour during unloading and reloading; (c) pile response due to long-term single-amplitude cyclic loading; and (d) multi-amplitude cyclic loads. …”

Response of stiff piles to random two-way lateral loading by Leblanc, C, Byrne, B, Houlsby, G

“…A model for predicting the accumulated rotation of stiff piles under random two-way loading is presented. …”

Response of stiff piles in sand to long-term cyclic lateral loading by Leblanc, C, Houlsby, G, Byrne, B

“…A complete non-dimensional framework for stiff piles in sand is presented, and applied to interpret the test results. …”

LIMITING PRESSURE ON A CRICULAR PILE LOADED LATERALLY IN COHESIVE SOIL. by Randolph, M, Houlsby, G

“…If this load is non-dimensionalized with respect to the soil strength and the diameter of the pile, it is found that the load factor varies between 6 plus 72 for a perfectly smooth pile and 4 ROOT 2 plus 2 eta for a perfectly rough pile. …”

THE LIMITING PRESSURE ON A CIRCULAR PILE LOADED LATERALLY IN COHESIVE SOIL by Randolph, M, Houlsby, G

“…In the analysis of the undrained loading of laterally loaded piles an important quantity is the ultimate lateral resistance at depth to purely horizontal movement. …”

A model study of the end bearing capacity of piles in layered calcareous soils by Evans, K, K. M. Evans

“… The results of a series of over 120 model tests to study the end bearing capacity of piles in layered calcareous soils are described. …”

Monotonic laterally loaded pile testing in a stiff glacial clay till at Cowden by Byrne, B, McAdam, R, Burd, H, Beuckelaers, W, Gavin, K, Houlsby, G, Igoe, D, Jardine, R, Martin, C, Muir Wood, A, Potts, D, Skov Gretlund, J, Taborda, D, Zdravkovic, L

“…The piles had length-to-diameter ratios (L/D) of between 3 and 10. …”

Experimental investigations of response of suction caissons to transient vertical loading by Byrne, B, Houlsby, G

“…They are unusual in that, in contrast with the development of offshore piling, there is no onshore experience that can be used as the basis for the development of designs. …”

Investigating novel foundations for offshore windpower generation by Byrne, B, Houlsby, G

“…One solution is to use conventional piling. However, at some sites it may prove more economical to use shallow foundations, and, in particular suction installed skirted foundations [1]. …”

New data analysis methods for instrumented medium-scale monopile field tests by Burd, H, Beuckelaers, W, Byrne, B, Gavin, K, Houlsby, G, Igoe, D, Jardine, R, Martin, C, McAdam, R, Muir Wood, A, Potts, D, Skov Gretlund, J, Taborda, D, Zdravkovic, L

“…New procedures are described for the interpretation of pile loading data, and specifically for providing precise interpretation of pile displacements.…”

Development and calibration of cyclic loading models for monopile foundations in clays by Balaam, T

“…By exploring mobilisation of lateral pressure down the pile for typical operational loading, an element-testing regime is proposed to better reflect the realistic conditions around the pile.…”

PISA design model for monopiles for offshore wind turbines: application to a marine sand by Burd, H, Taborda, D, Zdravkovic, L, Abadie, C, Byrne, B, Houlsby, G, Gavin, K, Igoe, D, Jardine, R, Martin, C, McAdam, R, Pedro, A, Potts, D

“…The 1D model is calibrated using data from a set of three-dimensional finite-element analyses, conducted over a calibration space comprising pile geometries, loading configurations and soil relative densities that span typical design values. …”

Drained behaviour of suction caisson foundations on very dense sand by Byrne, B, Houlsby, G

“…Alternatives to piled foundations, such as suction caissons, are becoming increasingly viable options for fixed platforms, particularly in the development of marginal fields. …”

Modelling of shallow foundations for offshore structures by Houlsby, G

“…The new model comes from the emerging offshore wind power sector, in which suction caissons were considered as an alternative to piled foundations.…”

The effect of stress-level on the response of a model monopile to cyclic lateral loading in sand by Richards, I, Bransby, F, Byrne, B, Gaudin, C, Houlsby, G

“…Monopile foundations supporting offshore wind turbines are exposed to cyclic lateral loading which can cause accumulated pile displacement or rotation and evolution of the dynamic response. …”

HOW THE DILATANCY OF SOILS AFFECTS THEIR BEHAVIOUR by Houlsby, G, Italiana, A

“…The influence of dilation on the capacity of piles is treated in more detail. Additional topics treated include the generalization of dilation expressions.…”