Download or read book Modelling Pile Installation Effects written by Harun Kürşat Engin and published by . This book was released on 2013 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book On the Modelling of Pile Installation written by Jelke Dijkstra and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Numerical Simulation of Pile Installation and Setup written by Mohammed B. Elias and published by . This book was released on 2008 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book In flight Simulation of Pile Installation in Slopes in Centrifuge Model Tests written by Liping Wang and published by . This book was released on 2014 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new device was developed to simulate the in-flight installation of jacked displacement piles in slopes using centrifuge model tests. In the modularization-based design of this device, the pile installation process is divided into combinations of five-axis movements, which are realized by corresponding electric motors. New structures consisting of combined cubes and cylinders are proposed for the pile top and the picking-up unit. In addition, this device utilizes a series of techniques, such as the use of linear guideways, to increase digital control and the local stiffness of key structures. These measures provide a high degree of automation with good accuracy in determining the locations and vertical extents of piles during installation. The structures and electric motors in the device were optimized to provide high capacities for the load (10 kN) and displacement (260 mm). This device was designed with hollow components to control the size and mass of the entity (only 50 kg) and to satisfy rigorous requirements regarding the allowable deformation and stability levels during centrifuge model tests. The effectiveness of the device was verified using pile installation tests under various conditions. The test results were compared with results that were obtained using pre-flight pile installation. Overall, the pile installation method influenced the responses of the pile-reinforced slopes. For example, the loading-induced displacement of the slope with piles installed in-flight was considerably greater than that in the slope with piles installed at the 1g level when the load was near the limit.

Download or read book Pile Design and Construction Practice written by Willis H. Thomas and published by CRC Press. This book was released on 2007-12-06 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: This international handbook is essential for geotechnical engineers and engineering geologists responsible for designing and constructing piled foundations. It explains general principles and practice and details current types of pile, piling equipment and methods. It includes calculations of the resistance of piles to compressive loads, pile group

Download or read book Proceedings of the 2nd Vietnam Symposium on Advances in Offshore Engineering written by Dat Vu Khoa Huynh and published by Springer Nature. This book was released on 2021-12-24 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers a selection of refereed papers presented at the 2nd Vietnam Symposium on Advances in Offshore Engineering (VSOE 2021), held in 2022 in Ho Chi Minh City, Vietnam. The book consists of articles written by researchers, practitioners, policymakers, and entrepreneurs addressing the important topic of technological and policy changes intended to promote renewable energies and to generate business opportunities in oil and gas and offshore renewable energy. With a special focus on sustainable energy and marine planning, the book brings together the latest lessons learned in offshore engineering, technological innovations, cost-effective and safer foundations and structural solutions, environmental protection, hazards, vulnerability, and risk management. Its content caters to graduate students, researchers, and industrial practitioners working in the fields of offshore engineering and renewable energies.

Download or read book An Insertion Rate Model for Pile Installation in Sand by Jetting written by M. A. Gabr and published by . This book was released on 2014 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of jetting is an approach to aid the installation of piles, especially in areas that have hard but relatively shallow subsurface soil layers. Jetting piles for a portion of their installation depth minimize their exposure to excessive driving stress and provide energy savings and noise reduction. However, the literature offers little information regarding the appropriate selection of jetting parameters, such as flow rate and jet velocity, which are needed to produce the desired installation times as a function of soil strength. This paper presents a model for estimating pile jetting parameters based on the results from laboratory and field testing. The model is based on an idealization of the applied shear stress that is produced by the jet as well as the soil resistance to pile insertion. The model is applied to 19 field installations where the jetted depths of the piles range from 10-34 ft. The field data yield ratios of 6-20 for the jet flow rate (Qw) to the rate of the pile volume insertion in terms of time (Qp), with the lower ratios associated with higher jet velocities. The proposed model yields an estimated Qw/Qp that is within +/− 20 % of the measured values.

Download or read book Effects of Pile Installation Simulation on Behavior of Pile Groups in Centrifuge Model Tests written by Yang Li and published by . This book was released on 2018 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Centrifuge model testing plays an important role in investigations of the bearing behavior of pile groups and its underlying mechanisms, for which pile installation simulation is a key issue. Centrifuge model tests were conducted to analyze the effect of different pile installation simulation methods, namely traditional installation at 1 g and in-flight installation at 50 g. Compared to the traditional method, the in-flight pile installation induces two effects: the deformation effect, in which the neighboring soil is made denser, and the shielding effect, in which the existing piles influence the deformation and pore pressure of the neighboring soil. Thus, the limit-bearing capacity and corresponding settlement of the pile group using the in-flight pile installation method are significantly greater, and the deformation and excess pore pressure of the soil near piles are smaller. The traditional pile installation method obtains unrealistic responses of pile groups because it cannot adequately simulate these effects.

Download or read book Design and Applications of Drilled Displacement Screw Piles written by Prasenjit Basu and published by Purdue University Press. This book was released on 2009-09-01 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drilled displacement (DD) piles are being increasingly used as foundation elements for structures, particularly in projects requiring accelerated construction or involving the rehabilitation of foundations of existing, overstressed structures. Different types of DD piles are available in practice; each type is classified according to the design of the drilling tool and associated installation method. Installation of DD piles causes substantial changes in the state of the soil surrounding the pile. These changes result from the complex loading imposed on the soil by expansion of a cylindrical cavity to make room for the specially designed drilling tool, by torsional and vertical shearing as the drilling tool gradually moves down into the ground, and by the reversed vertical shearing caused by extraction of the drilling tool from the ground. This report consolidates the information available on DD piling technology, reviews and compares the empirical design methods typically used for these piles, and presents a numerical approach to model the shaft resistance of DD piles in sand. The installation of DD piles produces greater radial displacement of soil than that produced by nondisplacement piles (e.g., drilled shafts), particularly in the case of sandy soils which gain additional strength through densification. This radial displacement of soil around the pile shaft contributes to the high capacity obtained for DD piles. Accordingly, our focus has been on analyzing the shaft resistance of DD piles in sand and proposing a design procedure based on the results of the analyses.

Download or read book 3D Modelling of Bored Pile Installation Effects and Long Term Monitoring of a Propped Retaining Wall written by Luca Montalti and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modeling in Geotechnical Engineering written by Pijush Samui and published by Academic Press. This book was released on 2020-12-01 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modeling in Geotechnical Engineering is a one stop reference for a range of computational models, the theory explaining how they work, and case studies describing how to apply them. Drawing on the expertise of contributors from a range of disciplines including geomechanics, optimization, and computational engineering, this book provides an interdisciplinary guide to this subject which is suitable for readers from a range of backgrounds. Before tackling the computational approaches, a theoretical understanding of the physical systems is provided that helps readers to fully grasp the significance of the numerical methods. The various models are presented in detail, and advice is provided on how to select the correct model for your application. Provides detailed descriptions of different computational modelling methods for geotechnical applications, including the finite element method, the finite difference method, and the boundary element method Gives readers the latest advice on the use of big data analytics and artificial intelligence in geotechnical engineering Includes case studies to help readers apply the methods described in their own work

Download or read book Behavior of Pipe Piles in Sand written by Magued Iskander and published by Springer Science & Business Media. This book was released on 2011-01-17 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the major difficulties in predicting the capacity of pipe piles in sand has resulted from a lack of understanding of the physical processes that control the behavior of piles during installation and loading. This monograph presents a detailed blue print for developing experimental facilities necessary to identify these processes. These facilities include a unique instrumented double-walled pipe-pile that is used to delineate the frictional stresses acting against the external and internal surfaces of the pile. The pile is fitted with miniature pore-pressure transducers to monitor the generation of pore water pressure during installation and loading. A fast automatic laboratory pile hammer capable of representing the phenomena that occur during pile driving was also developed and used.

Download or read book Design of Laterally Loaded Displacement Piles Using a Driven Pressuremeter written by RG. Campanella and published by . This book was released on 1984 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The nonlinear subgrade reaction method is widely used for the design of laterally loaded piles. This method replaces the soil reaction with a series of independent springs. The nonlinear behavior of the soil springs is represented by P-y curves, which relate soil reaction and pile deflection at points along the pile length. Most of the existing methods for obtaining P-y curves are highly empirical. Often little account is taken of the method of pile installation. The pressuremeter offers an almost ideal in-situ modelling tool for determining directly the P-y curves for a pile. As the pressuremeter can either be driven or self-bored into the soil, the results can be used to model either a displacement or a non-displacement pile.

Download or read book Implementation of Laterally Loaded Piles in Multi Layer Soils written by Monica Prezzi and published by Purdue University Press. This book was released on 2009-11-15 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Method for Accounting for Pile Setup and Relaxation in Pile Design and Quality Assurance written by Prasenjit Basu and published by Purdue University Press. This book was released on 2009-08-01 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: When piles are installed by jacking or driving, they cause substantial changes in the state of soil located near the pile. These changes result from the complex loading imposed on the soil by expansion of a cylindrical cavity to make room for the pile, by multiple cycles of shearing in the vertical direction as the pile gradually moves down into the ground, and by the slow drainage associated with clayey soils. If a pile is load-tested a short time after installation, it will develop an axial resistance that reflects the existence in the soil of the excess pore pressures caused by the installation process. After the excess pore pressures dissipate, the axial pile resistance will be different from that measured in the short term. This difference is referred to as pile setup (if the resistance increases) or relaxation (if the resistance drops). This report focuses on the pile setup observed in clayey soils, in which it can be quite significant. Pile setup in clays result primarily from shaft resistance gains with time after installation because the base resistance contributes proportionally much less in soft to medium stiff clays, which are the focus of the research. Accordingly, our focus has been on analyzing setup in shaft resistance, validating the equations resulting from these analyses and then proposing design and quality assurance procedures based on the results of the analyses.

Download or read book Physical Modelling in Geotechnics Two Volume Set written by C.W.W. Ng and published by CRC Press. This book was released on 2006-07-20 with total page 1608 pages. Available in PDF, EPUB and Kindle. Book excerpt: An excellent source of reference on the current practice of physical modelling in geotechnics and environmental engineering. Volume One concentrates on physical modelling facilities and experimental techniques, soil characterisation, slopes, dams, liquefaction, ground improvement and reinforcement, offshore foundations and anchors, and pipelines. V

Download or read book Geotechnics for Sustainable Infrastructure Development written by Phung Duc Long and published by Springer Nature. This book was released on 2019-11-28 with total page 1417 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents 09 keynote and invited lectures and 177 technical papers from the 4th International Conference on Geotechnics for Sustainable Infrastructure Development, held on 28-29 Nov 2019 in Hanoi, Vietnam. The papers come from 35 countries of the five different continents, and are grouped in six conference themes: 1) Deep Foundations; 2) Tunnelling and Underground Spaces; 3) Ground Improvement; 4) Landslide and Erosion; 5) Geotechnical Modelling and Monitoring; and 6) Coastal Foundation Engineering. The keynote lectures are devoted by Prof. Harry Poulos (Australia), Prof. Adam Bezuijen (Belgium), Prof. Delwyn Fredlund (Canada), Prof. Lidija Zdravkovic (UK), Prof. Masaki Kitazume (Japan), and Prof. Mark Randolph (Australia). Four invited lectures are given by Prof. Charles Ng, ISSMGE President, Prof.Eun Chul Shin, ISSMGE Vice-President for Asia, Prof. Norikazu Shimizu (Japan), and Dr.Kenji Mori (Japan).