United.Engineerings

Geotechnical Engineering: Principles and Practices, 2/e, is ideal or junior-level soil mechanics or introductory geotechnical engineering courses. This introductory geotechnical engineering textbook explores both the principles of soil mechanics and their application to engineering practice. It offers a rigorous, yet accessible and easy-to-read approach, as well as technical depth and an emphasis on understanding the physical basis for soil behavior. The second edition has been revised to include updated content and many new problems and exercises, as well as to reflect feedback from reviewers and the authors’ own experiences.

Non-linear geogrids: Elastoplastic (N-ε) & Viscoelastic (time-dependent): PLAXIS 2D 2017 introduce two new types of behavior for geogrids. Users can now include elastoplastic, or viscoelastic behavior. For the elastoplastic behavior user can define N-epsilon diagrams. With the viscoelastic behavior, creep can be taken into account for geogrids. Multiply command for numeric properties (VIP): The multiply command can be used to for instance multiply a set of loads with various load components by a factor higher or lower than 1. This command can be issued in the various modes on numerous objects, and especially for staged construction offers a convenient way to explore alternate load conditions, thermal conditions, initial conditions etc. Command line improvements: 2D brings some improvements for the command line window. Users can now right click in the command line window and choose the Pop-out option to detach the command line window from the program. In addition some extra options to copy all successful commands or responses are available.  Other features: Grout anchor behavior for Embedded beam rows - Directly input the element dimension in the expert settings of the mesh menu - Time shown in Output plot title for calculations where a time component is defined - Soil layering based on Robertson interpretation for imported CPT borehole data (VIP) - Hoek-brown model available in Design approaches (VIP) - Multiselect-on-click behavior for selecting overlapping objects of the same type - Grouped clusters based on material assignment in Output Model explorer - Equivalent force arrow can be hidden from cross sections - Inverse analysis settings in SoilTest can be now be saved.

Links Geotechnics with Railway Track Engineering and Railway Operation: Good railway track and railway operations depend on good geotechnics, in several different ways and at varying levels. Railway Geotechnics covers track, track substructure, load environment, materials, mechanics, design, construction, measurements, and management. Illustrated by case studies, with an emphasis on the geotechnical aspects of railway engineering, it discusses these topics from a historical perspective. It also presents the methodologies and best practices developed over the past 20 years.

In this book: Emphasizes the practical aspects and best practices for railway track and substructure + Contains guidelines for design, construction, and maintenance of railway track and substructure + Provides many examples and case studies. Railway Geotechnics is written primarily for professionals and graduate students, and begins with the fundamentals and basic principles, leading in to practical applications. The authors bring considerable experience and expertise, with many years of research and development, academia, railway operations, and consulting.

This book is useful as a postgraduate textbook for civil engineering, hydraulic engineering, transportation, railway, engineering geology and other majors in colleges and universities, and as an elective course for senior undergraduates. It is also useful as a reference for relevant professional scientific researchers and engineers.

Soil-structure interaction is an area of major importance in geotechnical engineering and geomechanics Advanced Geotechnical Engineering: Soil-Structure Interaction using Computer and Material Models covers computer and analytical methods for a number of geotechnical problems. It introduces the main factors important to the application of computer methods and constitutive models with emphasis on the behavior of soils, rocks, interfaces, and joints, vital for reliable and accurate solutions. This book presents finite element (FE), finite difference (FD), and analytical methods and their applications by using computers, in conjunction with the use of appropriate constitutive models; they can provide realistic solutions for soil–structure problems. A part of this book is devoted to solving practical problems using hand calculations in addition to the use of computer methods. The book also introduces commercial computer codes as well as computer codes developed by the authors.

Its Contents: Uses simplified constitutive models such as linear and nonlinear elastic for resistance-displacement response in 1-D problems + Uses advanced constitutive models such as elasticplastic, continued yield plasticity and DSC for microstructural changes leading to microcracking, failure and liquefaction + Delves into the FE and FD methods for problems that are idealized as two-dimensional (2-D) and three-dimensional (3-D) + Covers the application for 3-D FE methods and an approximate procedure called multicomponent methods + Includes the application to a number of problems such as dams , slopes, piles, retaining (reinforced earth) structures, tunnels, pavements, seepage, consolidation, involving field measurements, shake table, and centrifuge tests + Discusses the effect of interface response on the behavior of geotechnical systems and liquefaction (considered as a microstructural instability).

This text is useful to practitioners, students, teachers, and researchers who have backgrounds in geotechnical, structural engineering, and basic mechanics courses.