Water Main Rehabilitation Needs for the 1990's
Distribution systems represent the major portion of water utilities capital assets. There are growing concerns about water quality deterioration within distribution systems, and hydraulic...
A Review of Current UK Techniques for Rehabilitating Water Mains
This paper describes the main techniques used in the UK Water Industry to rehabilitate water mains, highlighting their advantages and disadvantages....
Cost of Rehabilitation of Water Distribution Systems
The Chester Water Authority was established in 1868 and supplies water to residential and industrial customers in three counties in Southeastern Pennsylvania, and in addition, wholesales...
Water Main Rehabilitation Using Silicote Lining
In an attempt to find a cost effective rehabilitation alternative for over 320 miles of unlined distribution water main, the Louisville Water Company has evaluated a new rehabilitation...
Turning on the Waterworks
A new tunnel, two pumping stations, reservoirs and 150 mi of pipe have 23 municipalities in DuPage County, Illinois awash in Lake Michigan water, ahead of schedule and under budget. Bringing...
Seattle Plays It Safe
To ensure the reliability of its aging water system in a major earthquake, the Seattle Water Department commissioned a comprehensive assessment of the system's seismic reliability...
Seismic Hazard Along a Central U.S. Oil Pipeline
An integrated approach is used to evaluate seismic hazards at six sites where pipeline 22 crosses the major rivers in West Tennessee. On the basis of historical and instrumental data,...
Seismic Hazard Analysis for Crude Oil Pipelines in the New Madrid Seismic Zone
The seismic vulnerability of three crude oil pipelines in and around the New Madrid Seismic Zone (NMSZ) is evaluated for a repetition of the 1811-12 New Madrid events. The seismic hazard...
Migration of Spilled Oil from Ruptured Underground Crude Oil Pipelines in the Memphis Area
This study evaluated the impact of an oil pipeline rupture in the recharge area of a West Tennessee aquifer. Two potential break locations were chosen in the alluvial valley of a main...
An Assessment of Environmental Costs Associated with Crude Oil Pipeline Damage Caused by Earthquakes
This paper presents a methodology for assessing the risk of environmental contamination from oil pipeline leaks caused by earthquakes. Risk is measured both as volume of oil released and...
Earthquake Countermeasures for Lifelines in the Central and Eastern United States
Seismic hazards affecting petroleum transmission systems in the Central U.S. and water and gas distribution systems in the Eastern U.S. are discussed. Experience during previous earthquakes...
Sea Floor Wave-Induced Water Kinematics for Design of Pipeline
A statistical model is presented for horizontal velocity and acceleration of water particles beneath storm seas near the sea floor. An expansion of the kinematics with basis functions...
Reliable Design-Wave Force Predictions for Seabed Pipelines
The results of three separate field research projects have been pulled together to provide a design formula for maximum wave-induced horizontal force on a submarine pipe. This broadly-applicable...
Pipeline Storm Behavior on Clay Soils
A series of transverse wave loading tests was conducted on a specially mounted section of pipe in a sediment-filled tank, to investigate the stability of unburied submarine pipelines under...
Homopolar Pulse Butt Welding of API 5L Line Pipe
Homopolar pulse welding (HPW) is a welding process that is being investigated as a means to rapidly join API line pipe, having particularly great potential for application in deepwater...
A Fourier Series Solution to Bottom Roughness Induced Stresses During Pipe Laying
Often during installation, a subsea pipeline must be laid along seabed portions with rough profiles. The pipeline is forced by the bottom irregularities to bridge across consecutive protuberances....
Lifeline Earthquake Engineering in the Central and Eastern U.S.
This proceedings,
Perils of Point Loma
Rupture of the Point Loma sewage outfall in San Diego on Feb. 2, 1992, sent 180 mgd of primary-treated sewage coursing into shallow waters off the city's coastline. The article...
Pressure Pipeline Design for Water and Wastewater
This committee report,
Effects of Natural Gas Storage on Gas Price Forecasts
This paper explores the effects of natural gas storage on short-term gas price forecasts. At the Southern California Edison Company (Edison), the gas price forecast incorporates a multitude...
Return to search