详情

MEASUREMENT OF THE DEFLECTION AND CURVATURE OF PAVEMENTS

项目名称：	MEASUREMENT OF THE DEFLECTION AND CURVATURE OF PAVEMENTS
摘要：	THIS RESEARCH IS BASED ON THE USE OF THE CURVIAMETRE WHICH IS UTILIZED TO MEASURE THE DEFLECTION AND CURVATURE OF PAVEMENTS UNDER A SIMPLE TWIN AXLE TRAVELLING AT A SPEED OF 18 KM/H. THE MEASUREMENT IS MADE WITH AN INERTIA SENSOR PLACED ON THE SURFACE OF THE PAVEMENT WITH THE HELP OF A SPECIAL CATERPILLAR TRACK. THE GEOPHONE-TYPE SENSOR USED UP TO THE PRESENT TIME, REACHES ITS LIMIT OF USE IN THE CASE OF PAVEMENTS COMPRISING ROADBASES STABILIZED WITH HYDRAULIC BINDERS, THE RIGIDITY OF WHICH IS IMPORTANT. TO EXTEND THE FIELD OF USE OF THE APPARATUS TO THIS TYPE OF PAVEMENT, A MEASUREMENT SYSTEM UTILIZING AN ACCELEROMETER-TYPE SENSOR IS BEING DEVELOPED. BECAUSE THE CURVIAMETRE OPERATES AT A SPEED OF 18 KM/H AND BECAUSE OF THE VISCOELASTIC PROPERTIES OF THE PAVEMENT, THE MEASUREMENTS OBTAINED ARE DIFFERENT FROM THOSE OBTAINED WITH CONVENTIONAL METHODS (BENKELMAN BEAM OR LACROIX-TYPE DEFLECTOGRAPH) IN WHICH THE VEHICLES TRAVEL AT A MUCH LOWER SPEED. THE USUAL STANDARDS BEING BASED ON TESTS OF THE LATTER TYPE, CORRELATIONS BETWEEN THE CURVIAMETRE AND THE BENKELMAN BEAM ARE STUDIED FOR DIFFERENT TYPES OF PAVEMENT STRUCTURES.
状态：	Active
资助组织：	CENTRE EXPERIMENTAL DE RECHERCHES ET D'ETUDES DU BATIMENT ET DES TRAVAUX PUBLICS (BUILDING AND PUBLIC WORK RESEARCH CENTER)
项目负责人：	BOUCHE, M；PAQUET, J；DAVIS, A
执行机构：	CENTRE EXPERIMENTAL DE RECHERCHES ET D'ETUDES DU BATIMENT ET DES TRAVAUX PUBLICS (BUILDING AND PUBLIC WORK RESEARCH CENTER)
开始时间：	19780000
主题领域：	Pavements；I22: Design of Pavements, Railways and Guideways；I52: Construction of Pavements and Surfacings