This paper was sponsored by TRB committee AFD80 Standing Committee on Pavement Structural Modeling and Evaluation.The results show that the proposed HD-BACK has the great potential in back-calculation of rigid-pavement parameters, with the lower sensitivity and the lower fitting error to the measured deflection. The sensitivity, robustness and efficiency of the compared three methods are first analyzed using a numerical example, and subsequently, the proposed method is validated with the field measured deflections by FWD as inputs, where the squared errors between the field measured and back-calculated deflections are investigated. Comprehensive comparison is conducted among the presented method and two widely used closed-form back-calculations called ILLI-BACK and NUS-BACK, respectively. The closed-form solution procedure of the HD-BACK is proposed and a corresponding numerical calculation MATLAB program is developed for this purpose. The HD-BACK adopted simplified calculations and leads to easy application, in which the deflection information of each sensor of FWD (Falling Weight Deflectometer) is used, and the principle of back-calculation is to minimize the sum of the squared errors of the measured deflection basin. This paper presents a solution of back-calculation analysis of rigid-pavement parameters using the barycentric horizontal distance of deflection basin, called HD-BACK. You also have access to online and phone support to make the most of your purchase.Closed-Form Backcalculation of Rigid-Pavement Parameters Using Barycentric Horizontal Distance of Deflection Basin With our products, you get the precise results you need for any asphalt or concrete pavement. We also provide other add-ons-from GPS integration to split loading plates-that narrows collected data for specialized analysis. Our truck- or -trailer-mounted deflectometers record accurate data at exceptional speeds, especially when paired with our Ground Penetrating Radar tools and SMARTCAL geophone calibration. JILS provides American-made Falling Weight Deflectometers and Heavy Weight Deflectometers.
We also sell the testing equipment to these markets for entities who prefer to keep their testing in-house. Our firm provides direct testing, analysis, and design of asphalt and concrete in the United States, Canada, the United Kingdom, South America, and Europe.
JILS offers pavement material testing for state, national, and international road authorities, airports, port authorities, architectural & engineering firms, and consultants. Give your roads better safety and longevity. Weclome to JILS: Material Testing, Analysis & Design
0 kommentar(er)
