The Precast Pier
For the U.S. Navy's Strategic program, a 1,410 ft long pier was constructed on New York City's Staten Island. The combined efforts of three engineering firms,...
Emerging Applications of Water Valuation
This paper identifies the emerging importance of the water value concept through a number of applications. These emerging applications include natural resource damage assessment, water...
Barge Bottleneck Uncorked
Construction of the replacement Lock & Dam 26, on Mississippi River at Alton, Ill. near St. Louis, is described. The $1 billion job, programmed to be built over the period 1979-91,...
A Comparison of Tidal Sediment Boundary Layer Profiles with Theory
A number of theoretical derivations have been presented for predictions of the sediment concentration profile near or at the bottom of a column of surface water. Ultrasonic transceivers...
Estimation of Mean Water Depth for Border Irrigation
The mean water depth for border irrigation is derived, using dam-break simple wave solution and boundary layer theory, as a function of inflow discharge, bottom slope, bottom roughness,...
Time-Domain Dam-Reservoir-Interaction Analysis Based on Boundary Elements
For a reservoir with an arbitrary shape of the upstream face and of the bottom including an adjacent regular part of constant depth extending to infinity, the hydrodynamic-stiffness matrix...
Dynamic Response of Massive Block to Transient Rayleigh Waves
The study explores the dynamic behavior of a rigid massive block placed on a homogeneous elastic half-space soil medium and subjected to transient Rayleigh waves. The treatment of the...
Evaluation of Sediment Transport and Friction Factor Equations Using MOBED
Three sediment transport rate equations and the same number of friction factor equations for mobile boundary channel flows were evaluated using a mobile boundary flow model called MOBED....
The Institutional Lender's View of Project Insurance Issues
The purposes of this article are to describe the typical insurance requirements of project financing institutions (particularly for projects with an insurable value of less than 20 million)...
Dynamic Soil-Structure Interaction by the Boundary Element Method: A Comparison Study
A comparison study of three Boundary Element Method approaches is attempted on the basis of a typical three-dimensional, dynamic soil-structure interaction problem. The vertical transient...
Green's Function Implementation for Pile Analysis
This paper describes the implementation of a new Green's function based on a layer stiffness approach in a boundary element analysis of harmonically loaded pile groups embedded...
Diffraction Forces on Axisymmetric Bodies
Use of a Green function satisfying the governing differential equation and all boundary conditions except those on the boundary of the structure yields an integral equation, when these...
Boundary Zone Superposition Method for Linear and Nonlinear Dynamic Analysis of Infinite Domain Problems
The method is applicable to problems where input loads are imposed from within the finite element model or to problems where disturbances outside the finite element model generate input...
Soil-Structure Interaction in Seismic Environments
Soil-structure interaction depends on the mass, stiffness and the damping of the structure as well as on the geometry and embedment of the foundation and on the properties of the soil....
Postmodern Engineering
Momentum Place is a postmodern skyscraper in Dallas designed by architects John Burgee and Philip Johnson. The Datum-Moore Partnership, structural engineers, designed the structural system...
An Evaluation of Sediment Resuspension Parameterizations
The recent attention to managing surface water toxic substances has resulted in a number of modeling approaches, all of which to a great or lesser extent require accurate treatment of...
Financial Development for Projects
An important element in the total package of Bechtel's engineering and construction services is the financing and commercial assistance offered in support of our client's...
Total Cost Purchase Options Buy vs Lease vs Rental Conversion Cash Flow Analysis
Today's financing alternatives are very complex and sometimes difficult to comprehend. The combined effect of the slow economy and uncertain future workload has accelerated...
Alternative Methods for Payment of Construction Equipment Ownership Costs on Federally Funded Projects
Construction equipment investment is a significant portion of the capital investment for contractors specializing in heavy construction. Operating this equipment under the changes clause...
Financial Statement Impact of the Rent/Lease/Buy Decision for Contractors using Heavy Equipment
Contractors with substantial equipment requirements must carefully weigh all of the quantitative and qualitative factors related to how they finance their equipment. Certain of these factors...
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