Corrosion Below: Sewer Structures
When a sewer system fails, the cause is often not the pipe but a manhole, junction or other special-purpose structure. Most of these structures are concrete, either cast in place or precast....
Problems with Rock Excavation Specification in Alberta
As a result of contract overruns and claims from classification, measurement, and payment for 'solid rock' excavation, Alberta Transportation and Utilities embarked...
Yazoo River Basin a New Direction for the Corps
The paper presents the lessons learned from the past events in the Yazoo Basin. The Yazoo Basin project is the only mechanism available that can provide the flood control that is needed...
GIS Plans Wastewater Future
When the Public Works Department began phase 3 construction on Albuquerque, N.M.'s current wastewater treatment plant in 1990, it was time to begin thinking about the next...
Avoiding and Resolving Disputes during Construction
Successful Practices and Guidelines
Seismic Surgery Rewarded
By installing isolators in the columns and strengthening the frame, engineers upgraded an eight-story concrete office building in Seal Beach, Calif. so that it should continue to function...
A Study of Shield Tunnel's Earthquake Prevention Under a Big Earthquake
Currently, the most commonly used approach for determining the aseismicity of a shield tunnel is the 'Response Displacement Method.' This is based on analysed...
Seismic Risk of Water Supply Network
In this paper, the failure mode of buried pipeline is established considering such main factors as the slippage between pipe and soil, non-uniformity subsurface layer, and the stress concentration...
Design Experience Gained Through Physical Modeling of Small-Craft Harbors
A research work unit has been initiated to determine the state-of-knowledge of small boat harbor design. Existing design criteria for small-craft harbor design is based primarily on 'rule-of-thumb'...
Organisation Structure and Control
With today's rapidly changing world economies and a variety of other pertinent factors, the euphoria of the past few years is fast dwindling and a professional approach in...
Physical Model Testing of Barbers Point Harbor and Marina Complex
A three-dimensional, physical model study of the Barbers Point, Hawaii harbor and marina complex is being conducted at the US Army Engineer Waterways Experiment Station, Coastal Engineering...
The Design & Construction of Marina Martinique, S. Africa
Marina Martinique is a coastal residential marina in the eastern Cape Province of South Africa which will ultimately accommodate 730 moorings and 1100 low rise residential units, most...
Tactical Aircraft and Airfield Recovery
This article is based on Captain Bahm's Master's thesis and was co-authored by his thesis advisor, Captain Polasek. The article is reprinted from the Airpower...
Air-Water Mass Transfer
This monograph, Air-Water Mass Transfer: Selected Papers from the Second International Symposium on Gas Transfer at Water Surfaces, consists of papers presented at the Symposium which...
Minimum Lifetime Cost Design of Coastal Structures?A Proposal of Design Method for Rubble Sloping Breakwaters
The authors propose herein a rational design method for coastal structures with consideration for their repairs. The special characteristics of the proposal are that a certain extent of...
The Concept of the New Waterway Storm Surge Barrier: Reliability as an Integral Part of a Nation's Sea Water Defense System
In the southwest of the Netherlands a storm surge barrier is to be built in the waterway that gives access to the port of Rotterdam. Strict design conditions ensure that only very slight...
Practical Aspects of Structural Control
Several problems in the practical implementation of structural control are discussed herein. These problems include the prediction of the actual behavior of existing structures, mathematical...
Active Control of Structures Under Stochastic Base Excitation with a Predominant Frequency
Active control of structures under stochastic base excitation is investigated. The synthesis of an active control system discussed in the study is based on the use of stochastic control...
Safety Assessment for Debris Basins
Debris basins are engineering control structures used in locations where debris flows occur. Knowledge of the risk of failure as a function of important design variables can improve decision-making...
Reliability of Miter Gates
A new approach for the reliability calculation of miter gates is presented. The reliability and hazard functions are related to the surficial wear of miter gates on their horizontal sill....
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