PAVEMENT FLATNESS MEASUREMENT METHOD AND SYSTEM

• Main Authors: PENG, Tao, SHEN, Zhiqiang, CAI, Wei, CHENG, Jiesheng, DING, Shengwen, WANG, Anhui, ZHANG, Jiesheng, CHEN, Qi, HU, Zhukui, HU, Lei, XU, Shuguo
• Format: Patent
• Language: Chinese; English; French
• Published: 27.05.2021
• Subjects: CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE; FIXED CONSTRUCTIONS; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR

A pavement flatness measurement method and system. The measurement method comprises: acquiring three-dimensional point cloud data of a pavement; performing reverse modeling by using the point cloud data to obtain a pavement entity model; building an eight-wheel flatness measuring instrument model in equal proportion, and constraining the connection relationship of all parts; enabling the eight-wheel flatness measuring instrument model to move on a specified characteristic line of the pavement entity model by using a motion simulation technology, to obtain a pavement irregularity deviation value of each pavement measurement interval; and calculating the flatness value of the pavement according to the pavement irregularity deviation value. The system comprises an acquisition module (10), a pavement entity model building module (20), a flatness measuring instrument model building module (30), a pavement irregularity deviation value calculation module (40), and a flatness calculation module (50). The measurement