Detection of Track Static Regularities Based on a Laser Tracker

摘要

This study proposes a method for detecting track static regularities based on a laser tracker. Given the laser tracker's advantages of high tracking-measuring accuracy and high sampling rate, the proposed method integrates static and dynamic measurements and is simultaneously applicable to both fine-adjustment measurement in the construction stage and detection in the operation-maintenance stage. In this paper, the design and implementation of the hardware-integration scheme, software development, and data processing are discussed. To verify the detection and data-processing methods for track static regularity, a case study was conducted on part of the Shanghai Metro Line 13 at Nature Museum Station. An SGJ-T-CEC-I passenger-dedicated line track geometric state measurement device of China Railway Engineering Consulting Group Co., Ltd., was used for comparative analysis. The feasibility and high accuracy of the proposed method were verified by using this device. (C) 2016 American Society of Civil Engineers.