Design of Steel Tunnel Liners
The paper presents a detailed development of the fundamental equations for internal pressure design, considering an elastic interaction between the steel liner and the surrounding rock...
Optimization of Power Production Based on Efficiency Data
Computer programs dealing with different parts of the optimization process are in operation in Norway today, and they include: the hydrological part from weather forecast to reservoir...
Segmental Tunnel Lining Meets `Buy American'
Segmental concrete tunnel lining is the other innovation proven during construction of the Washington Metropolitan Area Transit Authority (`wmata'). Although `wmata's'...
Channel Tunnel, Texas Style
Two water supply pipelines under the Houston Ship Channel and Greens Bayou are an example of deep tunneling in soft ground. The navigable waters and the water-bearing silty soils in the...
Hydropower Development of the Hongshuihe, China
Power is the predominant factor in the development of the Hongshuihe River. The Province of Guangdong is the most highly developed area in the Pearl River Basin, where the fast growing...
OK Menga Hydroelectric Project, Papua New Guinea
The Ok Menga project, currently under construction, consists of a run-of-river intake underground concrete and steel lined power conduit surface powerhouse with two 25 MW units and a 132...
Isabella Project?Retrofit of Existing Tunnel
This paper explains conceptual methods of reinforcing and lining the section of the existing tunnel downstream of the three control gates to the exit portal and bifurcation for the power...
The Gem State Hydropower Project
The Gem State Hydroelectric Project is located on the Snake River about 5 miles southwest of the City of Idaho Falls, Idaho. The project consists of a 40-foot high, 900-foot-long earth...
Roller Compacted Concrete with Marginal Aggregates
Roller compacted concrete is a technology which is vastly expanding beyond the traditional uses of pavement and dam oriented projects. Hornsby Bend Wastewater Treatment Plant required...
Low Permeability Liners Incorporating Fly Ash
This paper summarizes the results of a research study undertaken at West Virginia University to evaluate the feasibility of utilizing stabilized fly ash as a low permeability liner material....
Los Angeles' Small Main Programs
Large quantities of small diameter mains within Los Angeles' water distribution network has necessitated the development of new main improvement programs. The introduction...
Rehabilitation of Terminal Ballast Water Piping
In order to maintain the integrity of the ballast water piping system at the Marine Terminal of the trans-Alaska pipeline, a composite lining system was installed in the 42-inch (1,067...
Water Main Cleaning and Lining?A Utility Perspective
The Chester Water Authority is a regional water supply system located in Southeastern Pennsylvania serving a population of over 140,000 people in two countries and a large industrial complex...
Hydraulic Design for La Quinta Stormwater Project
An upstream detention basin was designed to trap debris and attenuate flows into Bear Creek Channel. The high velocity supercritical flow made a one side bank protection design for the...
Reliability of Compacted Soil Liners
Determination of transport times of contaminants through a soil liner is hindered by the inherent spatial variability of the hydraulic conductivity of compacted soil. The existence of...
Distribution System Rehabilitation
Hackensack Water Company has had an on-going program of cleaning and lining its transmission mains to increase their capacity and lower its pumping costs. But by late 1986, the need to...
Probabilistic Site Strategy for Transmission Lines
A probability-based geotechnical site characterization strategy is presented for transmission line structures. Because site-specific data are sparse for these structures, a Bayesian model...
Construction and Design of Foundations for French Overhead Power Transmission Network
This paper summarizes present conception and design of foundations for 90 to 400 kV overhead lines in France. Firstly principles of geotechnical studies in use are presented: various types...
High Capacity Multi-Helix Screw Anchors for Transmission Line Foundations
Three case history summaries are presented which discuss the siting, design, and construction of towers supported on multi-helix screw anchor foundations in the Virginia Power service...
Design of Waste Containment Structures
Synthetic liners, also known as flexible membrane liners (FMLs), have been used increasingly since the early 1970s to contain chemical and hazardous wastes because of their low permeability...
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