Preliminary Investigation of Predicting Permanent Deformations of Unbound Granular Materials Using Miniaturized Pressuremeter Cyclic Data

Preliminary Investigation of Predicting Permanent Deformations of Unbound Granular Materials Using Miniaturized Pressuremeter Cyclic Data
Author: Alaa M. Shaban
Publisher:
Total Pages: 15
Release: 2018
Genre: Granularbases
ISBN:

The permanent deformations of unbound pavement layers are typically caused by the movement and densification of aggregate particles under the influence of repeated wheel loads. This type of distress, which represents one of the major failure modes in flexible pavements, has been investigated by many researchers. In this research, a miniaturized pressuremeter (MPMT) device was used to predict rutting of unbound granular materials by performing cyclic field testing. The permanent deformations measured using cyclic triaxial (CT) testing were compared with those predicted from the MPMT testing. Four unbound pavement materials used as a pavement base and subgrade were tested and evaluated. The Tseng-Lytton model, also known as the sigmoidal model, was used to analyze and interpret permanent strain data obtained from both tests. The data showed that the permanent strains predicted from in situ MPMT tests are larger than those measured from laboratory CT tests. However, it is demonstrated that the best results are obtained when MPMT permanent strains are adjusted by using the slope of the strain level model as a reduction factor. The results indicated that the average ratio of predicted to measured permanent strain was 0.66 and 0.89 for subgrade and base course materials, respectively. In addition, it was concluded that the MPMT stress-strain data from ten MPMT loading cycles provide a reasonable estimation for soil strain parameters of the sigmoidal model.

Concrete Pavement Design Guidance Notes

Concrete Pavement Design Guidance Notes
Author: Geoffrey Griffiths
Publisher: CRC Press
Total Pages: 193
Release: 2007-04-19
Genre: Technology & Engineering
ISBN: 0203962060

This comprehensive design guide summarizes current developments in the design of concrete pavements. Following an overview of the theory involved, the authors detail optimum design techniques and best practice, with a focus on highway and infrastructure projects. Worked examples and calculations are provided to describe standard design methods, illustrated with numerous case studies. The author provides guidance on how to use each method on particular projects, with reference to UK, European and US standards and codes of practice. Concrete Pavement Design Guidance Notes is an essential handbook for civil engineers, consultants and contractors involved in the design and construction of concrete pavements, and will also be of interest to students of pavement design.

Handbook of Geotechnical Investigation and Design Tables

Handbook of Geotechnical Investigation and Design Tables
Author: Burt G. Look
Publisher: CRC Press
Total Pages: 356
Release: 2007-04-26
Genre: Science
ISBN: 020394660X

This practical handbook of properties for soils and rock contains, in a concise tabular format, the key issues relevant to geotechnical investigations, assessments and designs in common practice. In addition, there are brief notes on the application of the tables. These data tables are compiled for experienced geotechnical professionals who require a reference document to access key information. There is an extensive database of correlations for different applications. The book should provide a useful bridge between soil and rock mechanics theory and its application to practical engineering solutions. The initial chapters deal with the planning of the geotechnical investigation, the classification of the soil and rock properties and some of the more used testing is then covered. Later chapters show the reliability and correlations that are used to convert that data in the interpretative and assessment phase of the project. The final chapters apply some of these concepts to geotechnical design. This book is intended primarily for practicing geotechnical engineers working in investigation, assessment and design, but should provide a useful supplement for postgraduate courses.

Principles and Practice of Ground Improvement

Principles and Practice of Ground Improvement
Author: Jie Han
Publisher: John Wiley & Sons
Total Pages: 432
Release: 2015-06-22
Genre: Technology & Engineering
ISBN: 1118259912

Gain a stronger foundation with optimal ground improvement Before you break ground on a new structure, you need to analyze the structure of the ground. Expert analysis and optimization of the geo-materials on your site can mean the difference between a lasting structure and a school in a sinkhole. Sometimes problematic geology is expected because of the location, but other times it's only unearthed once construction has begun. You need to be able to quickly adapt your project plan to include an improvement to unfavorable ground before the project can safely continue. Principles and Practice of Ground Improvement is the only comprehensive, up-to-date compendium of solutions to this critical aspect of civil engineering. Dr. Jie Han, registered Professional Engineer and preeminent voice in geotechnical engineering, is the ultimate guide to the methods and best practices of ground improvement. Han walks you through various ground improvement solutions and provides theoretical and practical advice for determining which technique fits each situation. Follow examples to find solutions to complex problems Complete homework problems to tackle issues that present themselves in the field Study design procedures for each technique to simplify field implementation Brush up on modern ground improvement technologies to keep abreast of all available options Principles and Practice of Ground Improvement can be used as a textbook, and includes Powerpoint slides for instructors. It's also a handy field reference for contractors and installers who actually implement plans. There are many ground improvement solutions out there, but there is no single right answer to every situation. Principles and Practice of Ground Improvement will give you the information you need to analyze the problem, then design and implement the best possible solution.

Geotechnical Engineering for Transportation Projects

Geotechnical Engineering for Transportation Projects
Author: American Society of Civil Engineers. Geo-Institute
Publisher:
Total Pages: 1266
Release: 2004
Genre: Technology & Engineering
ISBN:

GSP 126 contains 223 papers presented at Geo-Trans 2004, held in Los Angeles, California, July 27-31, 2004.

Ground Characterization and Foundations

Ground Characterization and Foundations
Author: C. N. V. Satyanarayana Reddy
Publisher: Springer Nature
Total Pages: 819
Release: 2021-09-26
Genre: Science
ISBN: 9811633835

This book comprises the select proceedings of the Indian Geotechnical Conference (IGC) 2020. The contents focus on recent developments in geotechnical engineering for a sustainable tomorrow. The book covers the topics related to traditional and latest methods in characterisation of ground at construction sites, recent technological developments/ advances in design of shallow and deep foundations in different subsoil conditions.

Unsaturated Soils: Research & Applications

Unsaturated Soils: Research & Applications
Author: Nasser Khalili
Publisher: CRC Press
Total Pages: 1872
Release: 2014-06-05
Genre: Technology & Engineering
ISBN: 1315749580

Unsaturated Soils: Research and Applications contains 247 papers presented at 6th International Conference on Unsaturated Soils (UNSAT2014, Sydney, Australia, 2-4 July 2014). The two volumes provide an overview of recent experimental and theoretical advances in a wide variety of topics related to unsaturated soil mechanics:- Unsaturated Soil Behavi

Principles of Pavement Engineering

Principles of Pavement Engineering
Author: Nick Thom
Publisher: Emerald Group Publishing
Total Pages: 448
Release: 2024-08-12
Genre: Technology & Engineering
ISBN: 1835497101

Principles of Pavement Engineering, Third edition is an essential reference on fundamental principles of pavement engineering, showing how to design, construct, evaluate and maintain pavements of all types.