Vibration Problems of Penstock Piping for a Vertical Tubular Hydraulic Turbine
Excessive vibration amplitudes were experienced in the vertical gated tubular units at the Great Falls Hydroelectric Project located in the City of Paterson, New Jersey. Vibration amplitude...
Design Data of Kaplan and Bulb Turbine Units
Some basic statistical data covering geometrical and energy parameters for Kaplan and bulb turbine units are presented. These data are further compared as specific rations for both units,...
Update: Ozark-Webbers Falls Turbines
The Ozark and Webbers Falls powerhouses were designed and constructed under the supervision of the U.S. Army Corps of Engineers. Both are located on the McClellan-Kerr Arkansas River Navigation...
Analyses of the Lower San Fernando Dam Failure
The main methods employed for the back analysis of the behaviour of the Lower San Fernando Dam during the 1971 earthquake are described. The requirements for a comprehensive analysis are...
Analysis of Concrete Gravity Dams Using Microcomputers
Monenco Consultants Limited has developed a microcomputer program entitled 'DS2' for the stability analysis of concrete gravity dams. This paper discusses this...
Knowledge-Based Expert System for the Real-Time Operation of Reservoir Systems
An efficient way to avoid the loss of valuable knowledge is to develop an expert system which incorporates hydrologic, hydraulic, system analysis, environmental, economical knowledge based...
Implementation of a General Purpose Site Monitoring Network
STS Hydropower owns and operates several hydroelectric plants distributed throughout the United States. These plants, equipped with intelligent controllers, have been remotely monitored...
Evaluating Uplift Pressures for Concrete Gravity Dams
An approach for evaluating uplift and dam foundation conditions, which resulted from the initial phases of an Electric Power Research Institute (EPRI) study is presented. An earlier study...
Experience with the Application of Fully 3D Potential Flow Analysis to Runner Design
Hydraulic turbines come in various shapes and types depending on their operating conditions. Their performance characteristics depend largely on the runner which is the most difficult...
Digital Data Acquisition and Performance Testing of Hydroelectric Equipment
The U.S. Army Corps of Engineers Hydroelectric Design Center has elected to use digital data acquisition methods when conducting performance tests of hydroelectric units. Transducers have...
Guidelines for Failure Investigation
The
Cautious Risk Taking
Traditionally, the design engineer could bear virtually unlimited liability for design failure. Now he is less vulnerable. The concept is less than 20 years old, but since the early 70s,...
Grouting Trends
The grouting industry is discussed and North American practice compared to European practice. There has been more innovation in this field overseas, but there have also been failures....
Specification as a Requirement for Hot Mix Asphalt
A brief description of the current national research programs that affect the development of specifications is included in this paper. Elements of the Strategic Highway Research Program...
Real-Time Project Tracking
Too often project tracking is based on a job costing program which charges costs to the project based upon invoices from vendors and payrolls of employees. The information obtained from...
Potential Misuse of Construction Scheduling Software
The advent of microcomputers, coupled together with the development of many easy to use and economical scheduling packages, has placed a very powerful tool in the hands of construction...
Integrated Automation for Site Work
Technologically, computer integration can be built around four component systems; (a) a computer system to maintain unified data and control real-time operations, (b) a metrology system...
Real-time Monitoring of Heavy Equipment in Open Pit Mines
This paper reports on a system with local intelligence to interpret on-board signals. Existing sensors, pressure switches, warning lights, relays, and on-board monitoring systems provide...
Effect of Planning Errors on Construction Safety
A discussion of the planning phase of the building process associated with all the activities that are accomplished during this phase is presented. The different types of errors that occur...
Eliminating Bias in Construction Schedules to Measure Time
Schedules developed for use in managing the construction process which are accurate for that use are not necessarily sufficiently accurate to measure and evaluate delays and changes to...
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