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Technology of Total Station Instrument Precise Trigonometric Leveling used for Second-Grade-Leveling Elevation Survey

Qianwen Liu

Abstract

Taking the measurement of vertical control network in Wuhan-Guangzhou passenger railway line as an example, this paper introduced the measurement of height control equivalent to second -grade -leveling survey accuracy——the technology of precise trigonometric leveling.It discussed the following issue: leveling route laid, benchmark select and embedding stone, precise trigonometric observation, calculation and precise leveling.

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Available abstract

Key concepts: Trigonometry, Total station, Elevation (ballistics), Benchmark (surveying), Control network, Trigonometric functions, Simulation, Control (management)