Pipeline Curvature by Polynomial Approximation
Since start-up of the trans-Alaska pipeline in June of 1977, a variety of techniques have been investigated to monitor pipe settlement and evaluate associated pipe integrity. During the...
Corrosion Monitoring of Critical Service Pipelines
Corrosion, including microbiologically influenced corrosion (MIC), is receiving much attention as a significant piping material performance concern particularly for critical service pipelines...
Iowa's Experience with Various Types of Pipe in Natural Gas Service
The Utilities Division, Iowa Department of Commerce, is responsible for the rate, service, and safety regulation of utility companies in the State of Iowa. This paper will summarize a...
Boston's Water Distribution Corrosion Control Program
The Boston Water and Sewer Commission (Commission) was formed in 1977 with a mandate to maintain sound, economical, and efficient systems for water distribution and wastewater collection...
A Multilayered Model for Analysis of Composite Pipes
A multilayered model is developed to analyze the behavior of composite pipes, such as prestressed concrete pipe, to the combined effects of internal pressure and applied loads. The pipe...
An Investigation of Field Performance of Reinforced Plastic Mortar Pipes
Every year many new pipe materials appear on the market for various applications. One of the important factors the design engineer and the user should consider while evaluating new products...
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...
Bartolo Water Pipeline Rehabilitation Study
Restoration of old, large-diameter pipelines in highly urban settings presents challenges in cost effectively preparing the structures for reliable service under modern operating conditions....
The Use of Restrained Joint Ductile Iron Pipe
This paper addresses some of the problems we at U. S. Pipe have observed from restrained joint installations during the past several years and the solutions devised. The restrained joints...
Thrust Restraint of Buried Ductile Iron Pipe
It is the intent of this paper to present current state of the art thrust restraint design, present a basis for calculating required lengths of restraint, and to offer some practical suggestions...
Pipeline Rehabilitation with Polyolefin Pipe
This paper provides an introductory discussion on the rehabilitation of a deteriorated pipe structure by insertion renewal with continuous lengths of polyolefin pipe. This sliplining or...
Use of In-Place Lateral Reconstruction for Correction of Infiltration/Inflow
Extensive sewer collection system rehabilitation programs have done much and will continue to correct infiltration/inflow problems. However, re-evaluation of some of the earlier projects...
Getting to the Root of Sewer Problems
The ability to quantify and qualify work schedule in a clear, logical and precise manner can make the difference between an effective preventive maintenance program and one of 'trying'...
Internal Sealing of Large Diameter Pipelines
Underground piping has traditionally been repaired by making excavations at the joints and completing the repairs externally. However, with increasing labor costs, underground utility...
Water System Infrastructure Rehabilitation Needs in the State of New York
Water systems in many cities particularly in the Northeastern section of the United States are very old. With lack of proper and timely maintenance of the distribution network systems,...
Water Main Condition Monitoring A Case Study
Water main breaks, routine occurrences for water utilities, reflect the structural failure of the main. The trend in break patterns is increasing for many utilities in the U. S. Several...
Analysis of New York City's Water Main Replacement Policy
Water distribution main breakage is a perplexing problem for water utilities. To avoid excessive breakage, certain mains should be replaced. However, determining the appropriate mains...
Design of Ductile Iron Pipe Systems
To ensure a reliable, low maintenance infrastructure capable of withstanding the test of time, proper initial design is essential. The basis of the design standard for ductile iron pipe...
Pipe Geometry and Pipeline Bridge Wind Oscillation
Static and modal analyses of two pipeline suspension bridges owned by American Natural Resources - the Patterson Loop Aerial Crossing (PLAC) with a span of 850 feet (259 meters) and the...
Design for Variable Frequency Drive Applications
This paper presents fundamental design criteria used to evaluate the operational and economic feasibility of installing a variable frequency drive (VFD) on a petroleum products pipeline....
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