1st Edition

In Situ Testing in Geomechanics
The Main Tests




ISBN 9780415433860
Published January 29, 2009 by CRC Press
352 Pages

USD $79.95

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Book Description

Demanding a thorough knowledge of material behaviour and numerical modelling, site characterisation and in situ test interpretation are no longer just basic empirical recommendations.

Giving a critical appraisal of the understanding and assessment of the stress-strain-time and strength characteristics of geomaterials, this book explores new interpretation methods for measuring properties of a variety of soil formations.

Emphasis is given to the five most commonly encountered in situ test techniques:

  • standard penetration tests
  • cone penetration tests
  • vane test
  • pressuremeter tests
  • dilatometer tests

Ideal for practising engineers in the fields of geomechanics and environmental engineering, this book solves numerous common problems in site characterisation. It is also a valuable companion for students coming to the end of their engineering courses and looking to work in this sector.

Table of Contents

Foreword
Preface
Acknowledgements
List of symbols
Introduction
General considerations
Codes of practice
Interpretation methods
Scope and purposes
Standard penetration test (SPT)
General considerations
Standards and procedures
Wave propagation analysis
Measurements and corrections
Characterization and classification
Soil properties in granular materials
Soil properties in cohesive materials
Soil properties in bonded soils
Soil properties in weak rock
Direct design methods
Soil liquefaction
Concluding remarks
Notes
Piezocone penetration test (CPTU)
Equipment and procedures
New developments
Specifications and standards
Test results
Soil classification
Interpretation methods
Soil properties in cohesive materials
Granular soils
Properties in silty soils
Properties in bonded geomaterials
Pile bearing capacity
Liquefaction
Notes
Vane test
General considerations
Equipment and procedures
Interpretation
Shear strength
Stress history
Notes
Pressuremeter tests
General considerations
Types of instruments
Calibration procedures
Experimental results
Analysis of pressuremeter tests
Pressuremeter tests in sand
Cone pressuremeter tests in clay and sand
Pressuremeter tests in cohesive-frictional soils
Pressuremeter tests in unsaturated soil conditions
Design rules
Flat dilatometer test (DMT)
General considerations
Equipment and procedures
Intermediate DMT parameters
Interpretation of test results
Soil characterization
Geotechnical parameters in clay
Geotechnical parameters in sand
Direct applications
Design parameters: guidelines
Clay
Sand 282
Residual soils
Stiffness
References and further reading

Index

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Author(s)

Biography

Fernando Schnaid is Associated Professor of Civil Engineering at Federal University of Rio Grande do Sul, Brazil.