Popis: |
Based on the Guobu topographic survey project in Laxiwa hydropower station at Yellow River, different models of Riegl laser scanning equipment were used to measure each testing area’s topography. Laser scanning measuring technique plays a great role in the process of the hydroelectric topographic survey, and its efficiency works several times higher than that of using traditional measuring means. Moreover, it also can shorten measurement period and reduce the field cost of production, which can achieve good economic benefits and social benefits consequently. |