Wszystkie pola: Ćmielewski, B. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Terrestrial laser scanner technic as a method for identification deformation areas of slops
Autorzy:: Ćmielewski, B.
Kontny, B.
Powiązania:: https://bibliotekanauki.pl/articles/225475.pdf
Data publikacji:: 2011
Wydawca:: Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:: odkształcenia powierzchniowe obiektów
pomiary geotechniczne
deformation of superficial objects
geotechnical measurements
Opis:: Modern methods of determining the deformation of superficial objects, not monolithic, such as a slope, are based on observations of both sources: geodetic and geotechnical data. Surveying methods require investment in dense network of control points, which does not fully reflect the nature of occurring changes. This is the nature of the point observation and non-optimal distribution of points resulting from insufficient geological substrate. Geotechnical measurements also represent the point nature of the occurring changes.
Źródło:: Reports on Geodesy; 2011, z. 1/90; 77-84
0867-3179
Pojawia się w:: Reports on Geodesy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Use of mems technology in mass wasting research
Autorzy:: Ćmielewski, B.
Kontny, B.
Ćmielewski, K.
Powiązania:: https://bibliotekanauki.pl/articles/225530.pdf
Data publikacji:: 2011
Wydawca:: Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:: ruchy masowe
pomiary geodezyjne
mass movements
measurements
Opis:: Mass movements are a major threat to human life. Their growth depends on many factors. The main factor causing the surface mass wasting is the gravitational force, but the conditions in which this force can act, arise in different ways: it may be undercutting of slopes by erosion or weathering, deep relaxation of the layers forming the edge or slope overload by rain or snow. Often, all these factors interact. The material speed movement down a slope can be very slow, in the manner that is difficult to observe as well as suddenly and violently at a high speed. Methods permitting the monitoring of areas at risk of movement are geodetic, geptechnical and geophisical technics. The most popular method to investigate the movements of the soil layers is to use the inclinometer probe. However, this application requires a large effort involving the execution of specific wells, set up columns and the most expensive item inclinometer probe. Measurements using this technique are periodic and not fully reflect the processes occurring beneath the surface. To improve result several probes can be connected together, admitted to the same hole and registering readings in a real time. The cost of installation often exceeds the project budget. In this paper authors want to put attention to the possibility of using miniature measuring devices such as accelerometers, which are working in low -g š2g, to detect the force of Earth's gravity, distributed into three axis X, Y, Z. This allows calculating the direction of the deflection from X, Y axis and the deviation from the vertical line.
Źródło:: Reports on Geodesy; 2011, z. 1/90; 85-92
0867-3179
Pojawia się w:: Reports on Geodesy
Dostawca treści:: Biblioteka Nauki

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