Boundary Shear Stress in a Meandering Channel
Longitudinal and transverse velocity, bed shear, and water surface elevation were studied in a fixed-bed, meandering, laboratory channel with naturally varying, non-prismatic cross sectional...
Three-Dimensional Simulation of Two-Fluid Movement in Porous Media Using the Boundary Element Method
The paper discusses three-dimensional problems that include a denser fluid overlain by water in an unconfined aquifer. The two fluid regions are bounded by two-dimensional surfaces, including...
Generation of Steady Density Currents Through Boundary Layer Control
The paper reports on a study to explore the conditions that trigger bifurcation of ambient flow/intrusion interaction into one of two drastically different regimes, i. e. current versus...
Applications and Benefits of Accelerating Walkway Systems
A number of studies have shown that many persons resist walking, and might be willing to pay as much as 25 to 50 cents per minute to avoid walking. A new form of urban transport - Accelerating...
Cost Engineering for Disputed Work
Engineers and architects tend to underestimate the cost of disputed work, especially those connected with delay. The engineer, using industry standards and estimating rules of thumb, can...
Soft Ground Tunneling of the Greenbelt Tunnels
Mergentime/Loram's contract for the construction of Section E-1d Greenbelt Route Tunnels includes construction of dual 1,770-foot tunnels in soft ground, a crossover structure,...
Tunneling Operations and Equipment
The papers included in the Proceedings describe four diverse tunneling prjects of varying diameters, design criteria, ground conditions and construction techniques undertaken at locations...
Slashing Tunnel Costs
The second U.S. application of the New Austrian Tunneling Method at Washington D.C.'s Metro system is described. The innovative method has been used overseas, but American...
Steel Girder Bridge Sets Record Length
The Veterans Memorial Bridge at Ottawa, Ill., is the longest plate girder, stringer type bridge in the country with spans of 385, 510 and 305 ft. Value engineering played an important...
Building Failures: Design Problems and Solutions
A Building Failures conference of the Engineering Foundation dissected the problems leading to failures and recommended ways to reduce failures. This article discusses value engineering,...
Boundary Element Analysis of Flow in Heterogenous Porous Media
The boundary integral equation method (BIEM) is an efficient numerical method which has been applied to a wide variety of engineering problems governed by a partial differential equation...
Instruments Detect Dam Movement During Construction
Recent attention has been given to retrofitting electrical generation facilities at existing dams. Maintaining a safe structure during construction, and accomplishing this within a budget...
Avoiding Cavitation Damage to Hydraulic Structures
Cavitation damage often may be avoided by not allowing cavities to form. Where boundaries are not deeply submerged, their shape must be exactly correct, irregularities must be very small,...
Is Total CPM Really the Answer for Super Projects?
The concept of the critical path method (CPM) network scheduling is 25 years old. The CPM approach has now become almost synonymous with project management. Whether it is an appopriate...
Remodeled 42nd St. Bus Terminal Improves both Transit and the Neighborhood
A $160 million project to expand New York City's 42nd St. Bus Terminal was completed last year. The project is expected to improve commuter transit by increasing passenger...
Building Rehabilitation: The Last Resort
Rehabilitation of buildings often seems initially cheaper than new construction, but the hidden costs of renovation are making many builders prefer new structures. The advantages of new...
Value Engineering Cuts Highway Costs
The Oregon State Highway Department's experimental Value Engineering team examined over 40 highway projects in a search cost savings without sacrificing quality. While the...
Value Engineering and Cement-Bentonite Cutoff Wall Save Dam Project for Arizona Indian Tribe
Value engineering showed how it was possible to save $1 million in construction costs for the San Carlos River Dam, east of Phoenix, Ariz. The proposed dam site was moved to take advantage...
Construction Risk: Who Pays�
A report is given on the January 1979 Construction Risk and Liability Sharing Conference sponsored by ASCE's Construction Division Committees on Contract Administration and...
Peer Review: Old Concept in New Situations
In the past, clients treated their engineering consultants as the fallible human beings they are. No longer is this true. Today there is more pressure, by clients and courts, for error-free...
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