TM50在跨断层水平位移(短程)测量中的应用

对于短程跨断层水平位移测量,采用高精度光电测距仪是较好的选择,就目前的测量技术与作业方法而言,徕卡测量机器人TM50无论在测量精度还是作业速度上都具有很好的表现。通过两个跨断层场地的实例展现了TM50在跨断层水平位移测量中的应用,并对多周期实例数据进行了比较分析。

Application of Leica TM50 in Horizontal Displacement(Short Distance) Measurements across Faults

Based on the application of the Leica TM50 robotic total station to short-distance measurement of cross-fault displacements, the aim of this study is to show the feasibility of an intelligent measuring robot with nominal precision in short-distance measurement. This paper compares the advantages and disadvantages of the traditional invar-wire baseline method, GPS, and measuring robots in relation to aspects such as measurement precision, operational mode, and personnel demand. It finds that the use of a high-precision electro-optical distance meter (EDM) is the best choice at present for relatively short (<3 km) cross-fault displacement measurements. The study then clarifies the operational basis and technical requirements of an EDM and the operational hazards in data collection. In order to ensure repeatable and comparable measurement data, the observational field data need to be corrected with data processing. Meteorological modifications, periodic error correction, and instrumental correction are all discussed. Results are presented from an application example, compared graphically, and briefly analyzed in relation to fault displacements that are contained therein.