原文传递
LAYER MODULI BACKCALCULATION PROCEDURE: SOFTWARE SELECTION.
| 题名： | LAYER MODULI BACKCALCULATION PROCEDURE: SOFTWARE SELECTION. |
| 关键词： | STRATEGIC-HIGHWAY-RESEARCH-PROGRAM; LONG-TERM-PAVEMENT-PERFORMANCE; PAVEMENT-DEFLECTION; MEASUREMENTS-; BACKCALCULATION-; MODULUS-OF-ELASTICITY; PAVEMENT-LAYERS; LAYER-MODULI; SOFTWARE-; LITERATURE-SURVEYS; FLEXIBLE-PAVEMENTS; RIGID-PAVEMENTS |
| 摘要： | Deflection basin measurements for the purpose of structural capacity evaluation are a key component of the Strategic Highway Research Program's (SHRP's) Long-Term Pavement Performnace monitoring program. In the near term, SHRP will apply a backcalculation procedure to these deflection measurements in order to estimate the in situ elastic moduli of the pavement layer materials. Because a standard or generally accepted method for evaluating the structural capacity of flexible pavements from deflection data does not presently exist, a study was undertaken by SHRP to develop a layer moduli backcalculation procedure for use in the initial analysis of the SHRP deflection data. This procedure covers not only the software but also the rules, guidelines and criteria used in applying the program. As part of this study, a literature review was undertaken to develop a listing of available backcalculation software. Six programs were selected for detailed evaluation -- ELCON and ILLI-BACK for rigid pavement, and ISSEM4, MODCOMP3, MODULUS and WESDEF for flexible pavements. Using deflection data and other pertinent information obtained from SHRP pavement test sections, the selected software was exercised by a group of evaluators which included the program developers. Backcalculation results were evaluated on the basis of reasonableness, robustness and stability, goodness of fit, and general suitability for SHRP's purposes. This report discusses the process SHRP followed in selecting software and developing a backcalculation procedure, and presents the outcome of the software evaluation portion of the study. |
| 总页数： | 1993. pp307 (13 Fig., 11 Tab., 8 Ref., 5 App.) |
| 报告类型： | 科技报告 |
相关文献
- NEW SCENARIO FOR BACKCALCULATION OF LAYER MODULI OF FLEXIBLE PAVEMENTS.
- BACKCALCULATION ANALYSIS OF PAVEMENT-LAYER MODULI USING GENETIC ALGORITHMS.
- SYSTEM IDENTIFICATION METHOD FOR BACKCALCULATING PAVEMENT LAYER PROPERTIES.
- Reduction of Rutting and Fatigue Cracking under Heavy Vehicle Loads and Backcalculation of Layer Moduli. Volume 2; Final rept
- SOME OBSERVATIONS ABOUT BACKCALCULATION AND USE OF A STIFF LAYER CONDITION.
- SHRP'S LAYER MODULI BACKCALCULATION PROCEDURE.
检索历史
应用推荐
