Safety Aspects of Sulfide and Corrosion Studies (
An overview of the hazards involved in performing sulfide and corrosion studies in sewage treatment and collection systems is presented. Important factors which should be recognized in...
Hydroelectric Program for Development in Mexico
This work deals with the process at present followed in Mexico for the development of hydroelectric projects. Then, the participation of hydroelectricity in the electric sector is given...
Cherokee Nation Power Development at a Corps Lock and Dam
In an arrangement among the Cherokee Nation of Oklahoma, the U. S. Army Corps of Engineers and the Southwestern Power Administration, the Cherokee tribe will finance, design and construct...
Future Hydrothermal Power of the United States
Public indignation toward nuclear-power expansion, and dwindling oil and gas reserves dictate the needs to look for alternative-power sources, such as coal and water. It is a prime time...
Hydropower on the Arkansas?A Non-Federal Development
Only two of the eleven navigation locks and dams in Arkansas were initially constructed with hydropower facilities. In 1980, Arkansas Electric Cooperative Corporation (AECC) filed preliminary...
The Rx for Relief from Equipment Failure
A predictive maintenance program was developed for a treatment plant with a large number of pieces of critical mechanical equipment. Using an inexpensive, portable vibration meter, data...
Toe Drain System?Barr and Milton Reservoirs, CO
The purpose of this paper is to describe the design and construction of toe drains in difficult soil conditions for two 70 plus year old dams in Colorado using a unique toe drain installation...
Available Compaction Equipment
When discussing available compaction equipment we must keep in mind the purpose of compaction. Compaction is the art of artificially increasing the density or increasing the unit weight...
Equipment Requirements for Concrete Recycling
Concrete recycling projects have been completed in a number of states. As the transportation infrastructure ages, concrete recycling will become a common construction operation. Concrete...
Project Cost Control for Heavy Equipment
Some concepts and methods of project cost control for heavy equipment have been defined, which include methods, effectiveness, outside repairs, and the resulting management information,...
Production Analysis of the Cat 245 Hydraulic Hoe
The productivity of two Caterpillar model 245 hydraulic backhoe excavators was analyzed during their use on a highway construction project in September 1983. The hoes were working in a...
The Past, Present & Future of Earthmoving Scrapers
This paper is a summary of the history and development and use of earthmoving scrapers. It will also take a look at the future of this type of machine. We'll build the discussion...
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...
Earthwork and Resource Estimation on Large Expedient Projects
A computer-aided technique is being developed for planning, design, estimating, and scheduling of horizontal construction for facilities required to support military operations. This technique...
Teaching Experiment in Real-Time Construction Data Acquisition
This paper describes an experiment used in an undergraduate civil engineering course to familiarize students with interfacing electronic instruments mounted on a construction machine to...
Supercomputers and their Impact on Civil Engineering
The increasing complexity of today's civil engineering applications requires increasing detail and analyses with associated increased demands on computer resources. At the...
Microtunneling: No Pipe Dream
Microtunneling machines developed in Japan and Germany can help install pipes, ducts and cables without disrupting urban activities at street level. A microtunnel is defined as having...
Vibration Isolation of Structures From Surface Waves in Layered Soil
This work deals with the problem of isolation of structures from ground transmitted surface waves generated by machine foundations. The isolation is accomplished by means of rectangular...
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