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State-of-the-Art Review: Practices for Pipeline...

SKU: GRI-88/0287
State-of-the-Art Review: Practices for Pipeline Crossings at Highways

The study shows that adequate factors of safety, thicker wall pipe and greater depths of installation for carrier pipes represent feasible alternatives to casings at highway crossings.
Document Type
Report
Report Type
Topical Report
Report Period
06/87 - 06/88
Corporate Source
Cornell University, School of Civil and Environmental Engineering, Ithaca, NY
Sponsor
Gas Research Institute, Chicago, IL
Pagination
232
Product Media
PDF Download
$295.00 / Each
 
Availability: In Stock
Summary:
This review of the practices for pipeline crossings at highways focuses on five areas: professional and regulatory design and construction specifications, and performance records; construction at crossings, including pipeline deformations and soil dead loads; traffic-related live loads; corrosion conditions; and analytical models and design procedures for determining pipeline stresses. The study shows that adequate factors of safety, thicker wall pipe and greater depths of installation for carrier pipes represent feasible alternatives to casings at highway crossings. Various foreign countries and many U.S. state highway authorities allow for uncased crossings, provided suitable measures are followed to ensure safety. A design methodology developed to account for stresses at crossings provides a rational basis for the design of uncased carriers.
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