Survey and Investigation

Ma’anshan Yangtze River Bridge Engineering Measurement

Advanced GPS cross-river benchmark measurement technology was adopted to measure the cross-river benchmark measurement was adopted to accomplish the measurement of secondary cross-river benchmark for the main river and solve the problems of long-distance cross-river conventional measurement affected by climates remarkably with heavy workload but low efficiency. It developed a precise measurement method to measure the height of GPS antenna with vernier caliper and precise leveling instrument, which accuracy is up to 0.2mm.