Mass wasting processes are very dangerous phenomena, mainly due
to their unpredictability. Moreover, their tumultuous and rapid character
has led to attempts of predicting the places of occurrence of such phenomena
and to assess the possible threat. Unfortunately, it is not possible to
monitor all potentially unstable areas, however, temporary monitoring of
such areas, that are already activated, is legally required. Monitoring the
area prone to mass movements is essential to assure the safety of its inhabitants
and their possessions. The article presents the example of a surveying
solution which was applied to monitor the landslide areas as well
as their surroundings.
The subject of the research was the landslide that occurred within
the area of the Carpatians flysch in the village of Kłodne. Its activation,
disastrous in its effects, occurred in 2010 and was caused by an
intense rainfall.
The first described stage of the research was the design and stabilisation
of a control network. This resulted in the stabilisation of 68
points creating an observational network. The next stage, described in the
article, was conducting two observational series using both satellite and
classic measurement techniques. In the following part of the article, the
results of the field measurements were discussed. The analysis of the results
started with the calculation of coordinates of all points stabilised on
the researched area in reference to the national spatial reference system.
The calculations were made for each measurement series separately. After
the conduction of works aimed at detecting fixed points in the creat ed surveying network, a slight horizontal displacement of several points
located in the landslide area has been noticed. The determined displacements
slightly exceed the values of measurement errors. In order to verify
the obtained results, it is necessary to conduct more measurement series
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