Effect of Pile Driving on Adjacent Piles in Clay PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Effect of Pile Driving on Adjacent Piles in Clay PDF full book. Access full book title Effect of Pile Driving on Adjacent Piles in Clay by . Download full books in PDF and EPUB format.
Author: Publisher: ISBN: Category : Languages : en Pages : 12
Book Description
When a pile is driven into clay, horizontal and vertical movements are developed in the soil surrounding the pile. These movements will tend to develop axial forces and bending moments in adjacent piles that have already been installed. Possible consequences for these piles are (i) structural damage or cracking (of concrete piles) arising from the induced bending moments, (ii) tensile failure of the piles due to the induced axial forces, and (iii) lifting-off of the pile tip from the bearing stratum due to the axial induced movements. This paper describes the results of a theoretical analysis of the bending moments and axial forces developed in a pile due to driving of an adjacent pile in clay. The analysis uses approximate distributions of horizontal and vertical soil movements caused by pile driving, developed from a strain-path' analysis, together with inferences from model pile test data. An examination is made of various factors that may influence the induced bending moments and forces, including pile spacing, depth of penetration of the adjacent pile, and number of piles driven. For a number of published case histories comparisons are made between theoretical and measured axial and lateral pile movements. In general, satisfactory agreement are made between theoretical and measured axial and lateral pile movements.
Author: Publisher: ISBN: Category : Languages : en Pages : 12
Book Description
When a pile is driven into clay, horizontal and vertical movements are developed in the soil surrounding the pile. These movements will tend to develop axial forces and bending moments in adjacent piles that have already been installed. Possible consequences for these piles are (i) structural damage or cracking (of concrete piles) arising from the induced bending moments, (ii) tensile failure of the piles due to the induced axial forces, and (iii) lifting-off of the pile tip from the bearing stratum due to the axial induced movements. This paper describes the results of a theoretical analysis of the bending moments and axial forces developed in a pile due to driving of an adjacent pile in clay. The analysis uses approximate distributions of horizontal and vertical soil movements caused by pile driving, developed from a strain-path' analysis, together with inferences from model pile test data. An examination is made of various factors that may influence the induced bending moments and forces, including pile spacing, depth of penetration of the adjacent pile, and number of piles driven. For a number of published case histories comparisons are made between theoretical and measured axial and lateral pile movements. In general, satisfactory agreement are made between theoretical and measured axial and lateral pile movements.
Author: Robert D. Holtz Publisher: ISBN: 9780784412770 Category : Geotechnical engineering Languages : en Pages : 0
Book Description
GSP 230 contains 39 papers on applied geotechnical engineering in soft ground construction, reinforced soils, and fundamental soil behavior presented in honor of Robert D. Holtz.
Author: Willis H. Thomas Publisher: CRC Press ISBN: 0203964292 Category : Technology & Engineering Languages : en Pages : 566
Book Description
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
Author: C. H. Dowding Publisher: ISBN: Category : Science Languages : en Pages : 648
Book Description
The entire field of construction-induced vibrations - including advances in earthquake engineering, nuclear blast protective design, and construction and mine blasting - is covered in this work. Frequency of vibration and strain form the foundation for the presentation of the material.
Author: Richard Woods Publisher: CRC Press ISBN: Category : Architecture Languages : en Pages : 192
Book Description
This book describes the current state of knowledge and practice in judging the potential and determine the practice of agencies that must assess and prevent damages due to piling vibrations
Author: Saeed Alzahrani Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
This research study focuses on modeling pile setup for closed-ended pipe piles (CEP) driven in cohesive soils. Pile setup can be defined as an increase in pile resistance over time after installation due to an increase in soil resistance. Pile setup was rarely considered in the Ohio Department of Transportation, ODOT, standard driven pile design procedures. If significant pile driving losses occur during pile installation, either pile driving is halted for a short period of time to determine whether pile setup will occur, or pile length is increased to achieve the required ultimate bearing value. This would negatively affect not only the piling and projects costs, but also the project schedule. Thus, incorporating pile setup into the design stage can lead to saving in pile quantity and avoid construction delays, as well as help to avoid change orders. In order to better predict pile driving losses during design stage, this research project aimed to develop more reliable pile setup models. To fulfill the objectives of this research, a database was established to collect data from existing projects in the State of Ohio. In addition, several field projects were selected to investigate the pile setup phenomenon. Comprehensive statistical analyses were conducted to investigate the mechanism of pile setup. Effect of the construction activities on the resistance of adjacent piles was also investigated by performing dynamic and static load tests on CEP piles driven in a fine-grained soil profile. The cone penetration tests (CPT) were performed at three locations at the project sites to gain more knowledge of the soil layers. Data obtained from piezometer measurements showed an increase in water pressure at the site during pile driving, which in turn reduced the effective soil strength. This investigation revealed that pile driving and restrikes should be scheduled such that the effect of construction activities on load tests results will be avoided or minimized. This could be implemented by conducting the dynamic load test on the first pile driven at a site and avoiding any construction activities until after the time of the restrike. The effect of construction activities on the resistances of adjacent piles was observed at distances of seven times the pile diameter. The results also indicated that silty clay soil exhibits higher setup than other soil types encountered at the project site. Side and tip resistances obtained from the static load tests were compared with estimates made using well-known CPT-based pile design methods. Overall, these methods achieved satisfactory predictions of the side and tip resistances with some exceptions. Multiple variable regression analyses performed by using the dataset compiled showed that the resistance mobilized at the end of pile installation, time passed after the installation, pile shaft surface area, and average silt content along the pile length are the most influential parameters in predicting the total pile resistance of driven piles. Multiple regression analyses were also carried out by using the collected database of side resistance demonstrated that initial side resistance, time passed since installation, soil volume displaced, clay and water contents along the pile length are the significant variables on predicting pile side resistance. New models for total and side resistances were developed to predict pile setup for CEP piles driven in fine-grained soils using gene expression programming (GEP). The results showed that the proposed models of pile total and side resistances can predict pile setup quite well. An attempt to evaluate the setup, for both total and side resistances, with time using the database has been made. The total and side setup ratios were also analyzed based on various restrike times. Since the database contains piles with multiple restrikes, another analysis was carried out to evaluate the ultimate total and side setup ratios. One of the main goals of this research was to evaluate pile side setup for individual layers using the unit side resistance with the aid of available dynamic load test data. Effect of soil properties on setup ratios for individual soil layers was also investigated. The results revealed that the recommended setup factor for the pile total and side setup ratios of 2.0 and 3.0, respectively, would cover almost all the piles' long term behavior. The results also showed that side friction setup factors for the piles driven in fine-grained Ohio soils are about 50 to 100% more than the factors currently recommended in the ODOT Bridge Design Manual.
Author: Ruwan Abey Rajapakse Publisher: Butterworth-Heinemann ISBN: 0128042346 Category : Architecture Languages : en Pages : 380
Book Description
Pile Design and Construction Rules of Thumb presents Geotechnical and Civil Engineers a comprehensive coverage of Pile Foundation related theory and practice. Based on the author’s experience as a PE, the book brings concise theory and extensive calculations, examples and case studies that can be easily applied by professional in their day-to-day challenges. In its first part, the book covers the fundamentals of Pile Selection: Soil investigation, condition, pile types and how to choose them. In the second part it addresses the Design of Pile Foundations, including different types of soils, pile groups, pile settlement and pile design in rock. Next, the most extensive part covers Design Strategies and contains chapters on loading analysis, load distribution, negative skin friction, design for expansive soils, wave equation analysis, batter piles, seismic analysis and the use of softwares for design aid. The fourth part covers Construction Methods including hammers, Inspection, cost estimation, load tests, offshore piling, beams and caps. In this new and updated edition the author has incorporated new pile designs such as helical, composite, wind turbine monopiles, and spiral coil energy piles. All calculations have been updated to most current materials characteristics and designs available in the market. Also, new chapters on negative skin friction, pile driving, and pile load testing have been added. Practicing Geotechnical, and Civil Engineers will find in this book an excellent handbook for frequent consult, benefiting from the clear and direct calculations, examples, and cases. Civil Engineering preparing for PE exams may benefit from the extensive coverage of the subject. Convenient for day-to-day consults Numerous design examples for sandy soils, clay soils, and seismic loadings Now including helical, composite, wind turbine monopiles, and spiral coil energy piles Methodologies and case studies for different pile types Serves as PE exam preparation material
Author: 
Author: 
Author: J. B. Burland
Author: Robert D. Holtz
Author: Ali Dalili
Author: Willis H. Thomas
Author: C. H. Dowding
Author: Richard Woods
Author: Saeed Alzahrani
Author: Richard D. Woods
Author: Ruwan Abey Rajapakse