The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part Bl. Beijing 2008
of the goals, the angle of laser beam and the power of
system and so on. The reflectivity is affected severely by
the difference of the rock type, the ground soil texture and
ground cover. Therefore, it is necessary to choose
appropriate season and carries on the full investigation to
the soil texture type. The penetrability of laser light is
mainly restricted by ground cover and the intensity of
laser beam. If the region of the monitoring landslide is not
crowded by the massive low vegetations, the influence of
the penetration coefficient is not big. If the ground
includes the massive low vegetation, we should process
the point cloud first.
(4) The laser scanning cannot instead of the observation
completely, because the 3D point cloud could not
describe the characteristics of the rock intensity, the soil
texture type, the water content and the corrosion. In order
to analyze the relations of the landslide with the factors of
other types, the field investigation is necessary. But it is
still the best method to monitor the landslide in a
dangerous region.
In brief, the 3D laser scanner is easily hand carried and
deployed by a single operator. In addition, it can obtain the
point cloud of the monitoring region fast and effectively. The
test result is satisfying. It has the infinite potential in various
distortion monitoring.
REFERENCES
References from Journals:
Kayen, Robert, Bays: Ground-LIDAR visualization of surface
and structural deformations of the Niigata-ken Chuetse[J].
Earthquake Spectra, 2005(22): 147-162
References from Books:
Strouth, A. & Eberhardt, E. (2006). The use of LiDAR to
overcome rock slope hazard data collection challenges at
Afternoon Creek, Washington. In 41st U.S. Symposium on
Rock Mechanics: 50 Years of Rock Mechanics - Landmarks
and Future Challenges, Golden. American Rock Mechanics
Association
References from Other Literature:
Collins B.D. Sitar N.: Application of high resolution 3D laser
scanning to slop stability studies [C]. 39 th Symposium on
Engineering Geology and Geotechnical Engineering.
Butte:Montana, 2004
References from websites:
ILRIS-3D—one tool, multiple uses: mine safety, volume
calculation, change detection, Optech Incorporated.
Innov Metric Software: PolyWorks Inspector™ V8.0,
Inspector’s Guide, August 2003
Optech, “ILRIS-3D Benefits and Features”,
http://www.optech.on.ca/ilrisfeatbens.htm. accessed June 2004.
Terrasolid, TerraScan User’s Guide , Arttu Soininen ,
Terrasolid, 1998-2004