Abstract:

This paper presents the test results for accuracy of spatial position measuring by Terrestrial Laser Scanner 3D (TLS) with value (ΔS) determined from 6 to 14 mm corresponding in measurement distance from 50m to 150m. 3D models measured in Da Dang hydropower tunnel collapse within 18 hours allow to identify the location of collapsed tunnels, the status of space at collapsed location and service of the rescue. Although the price of TLS is higher than the traditional equipments, the effects and results of their work are much higher. In the near future, TLS can also allow applications in construction - mining management at underground mines, improving efficiency in the management exploiting, resources management and contribute to the transparency of mineral activities in Vietnam.