Fugro-BRE staff members who provided significant contributions to this study include Dr. ERES Consultants is the prime contractor, and Fugro-BRE is a subcontractor. Supplementary Notes This report is a project deliverable under the LTPP Data Analysis Technical Support study. Sponsoring Agency Name and Address Office of Engineering R & D Federal Highway Administration 6300 Georgetown Pike McLean, Virginia 22101-2296ġ5.
Type of Report and Period Covered Final Report May 1997 August 2001ġ2. Performing Organization Name and Address Fugro-BRE 8613 Cross Park Drive Austin, TX 78754ġ0. Title and Subtitle Back-Calculation of Layer Parameters for LTPP Test Sections, Volume II: Layered Elastic Analysis for Flexible and Rigid Pavementsĥ. Trade and manufacturers' names appear in this report only because they are considered essential to the object of the document.
Government does not endorse products or manufacturers. This report does not constitute a standard, specification, or regulation. Government assumes no liability for its contents or use thereof. NoticeThis document is disseminated under the sponsorship of the Department of Transportation in the interest of information exchange. Director Office of Infrastructure Research and Development Obtaining these elastic layer properties for use in further data analyses and studies regarding pavement performance was the primary objective of this study. This report documents the procedure that was used to back-calculate, in mass, the elastic properties for both flexible and rigid pavements in the LTPP program using layered elastic analyses. One of the more common methods for analysis of deflection data is to back-calculate the elastic properties for each layer and provide the elastic layer modulus that are typically used for pavement evaluation and rehabilitation design. These deflection basin data are analyzed to obtain the structural-response characteristics of the pavement structure and subgrade that are needed to achieve the overall LTPP program objectives. Research, Development, and Technology Turner-Fairbank Highway Research Center 6300 Georgetown Pike McLean, VA 22101-2296įorewordDeflection basin measurements have been made with the Falling Weight Deflectometer (FWD) on all test sections that are included in the Long Term Pavement Performance (LTPP) program. Back-Calculation of Layer Parameters for LTPP Test Sections Volume II: Layered Elastic Analysis for Flexible and Rigid PavementsPUBLICATION NO.
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