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Geotechnical Documents and Software

Books for Pile Driving and Driven Piles Software for Pile Driving and Driven Piles Drilled Shafts and other Bored Deep Foundations General Soil and Rock Mechanics Laboratory Testing and Field Investigations Material on Related Sites Marine Construction and Coastal Engineering Airfield, Airfield Pavement and Airport Design Other Engineering Programs Non-Engineering Downloads: Java, DOS, Windows, and Macintosh programs Links to Other Downloads

Foundation Design and Construction (General Reference) Combined Soil Mechanics and Foundations References Soil Dynamics and Special Topics Retaining Walls and Lateral Earth Pressures Shallow Foundations and Slope Stability Special Geotechnical Features Soil Mechanics and Foundations Course Materials. Taken from courses taught by the webmaster at the University of Tennessee at Chattanooga Articles by Dr. Mark R. Svinkin. He is an acknowledged expert in ground vibrations and pile dynamics; his articles are a unique feature of this site. Wave Equation Page for Piling. The section of the site that started it all. Soils in Construction (textbook) Non-technical titles by the webmaster (free and for sale)

Dr. Siva Kesavan, URS Corporation
Professor Rajah Anandarajah, Johns Hopkins University
Presented at the Workshop on Nonlinear Modeling of Geotechnical Problems: From Theory to Practice
Johns Hopkins University, Maryland, November 3 & 4, 2005

Introduction

The problem analyzed in this presentation is inspired by a real-world problem where the construction of a landfill at a rate too fast caused damage to an adjacent bridge. Without presenting actual names, the problem is described and analyzed using an elasto-plastic finite element computer code (HOPDYNE) to illustrate how an advanced numerical procedure can help develop an understanding of the failure mechanism, and reveal the true cause of the failure in a complex problem like this, where loading and consolidation take place simultaneously. The problem involves soil-structure interaction. The geometry is too complex, raising questions concerning the validity of one-dimensional assumptions used in Terzaghi’s one-dimensional consolidation theory. The clayey soil in the foundation is too soft and is certain to behave highly plastically, raising questions about the validity of using elastic theories to calculate the stresses in the foundation caused by the weight of the landfill. In other words, the problem is too complex, pointing to the need for a method like the finite element method for not only verifying the validity of the conventional methods normally used in analyses, but also to explain the true cause of failure.

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