This paper presents full scale pipe-soil tests results and finite-element parametric studies conducted to investigate the effects of soil moisture content, dimensionless cover heights (soil cover height to diameter ratio) and soil relative density on the peak uplift resistance of pipes.
Their steel materials are applicable to predict ductile failures of full-scale pipes with pits, non-sharp notch-type corrosion defects and other metal losses which can be analyzed with spherical and spheroid shaped defects.
Experimental results from bending tests on full-scale pipes are presented, including the effect on pipe initial geometry, weld defect dimensions, and local strains experienced in the weld region.
In this paper, model tests are performed using full-scale pipes coated with polyethylene (PE) to study the effects of the set-up period, the pipe diameter, the buried depth of the pipe, the shear strength of soft clays and the loading rate on the axial friction response of pipelines in soft clays.
The paper presents two test rigs designed at the University of Pisa to perform bending fatigue tests on full scale drill pipe connections used for oil drilling.
Accordingly one of the typical full scale SGDHR pipe bend have been tested towards the assessment of the seismic margin available in the design of PFBR SGDHR piping system.
Additionally, full scale testing on three pipe geometries, straight, elbow, and tee, with through-wall defects were also performed to determine the influence of water contact on repair efficacy.
However, the field performance of buried full-scale SFRC pipes is yet to be duly investigated.
The model was verified using experimental data generated previously by the authors on full-scale SFRC pipes as well as other data available in the open literature.
A fatigue simulator was designed and built to test full-scale drill pipes under rotating cyclic bending and constant tension loading.
Full scale static pile load testing was also performed for both driven pipes and helical piles.
