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Przewidywane graniczne odchylki liniowe ciagow poligonowych a wytyczne techniczne do pomiaru osnow szczegolowych i pomiarowych

100%

Malarski R.

nr 07

3-6

A concept for the examination of reference points stability in horizontal control networks

100%

Malarski R.

tom Vol. 101

60--69

This paper presents a concept for the identification of stable reference points used in horizontal control networks, which is based on the lengths of apparent displacement vectors and their mean errors. These vectors and their mean errors are obtained during the process of calculating displacements with free adjustment conditions. It will be shown that the influence of the apparent displacement vectors has a significant effect on the calculation of results. The identification of stable points, using the proposed method, is an integral part of the adjustment process and allows for the interrogation the influence of individual point inclusion or deletion from the reference database, on the values of displacements of controlled points. A detailed process of stable reference points identification is presented using the example of a linear-angular network for a barrage.

Wspomnienie w 100. rocznicę urodzin Profesora Tadeusza Lazzariniego inżyniera, uczonego, nauczyciela i wychowawcy wielu pokoleń geodetów

63%

Malarski R. , Sadowska A.

tom R. 85, nr 3

15--17

Evaluation of the usefulness of the "millimeter GPS" system for determination of elevations of points in topographic surveys

63%

Malarski R. , Pasik M.

2011

tom z. 1/90

279--286

Commencement of the ASG-EUPOS national network in 2008 resulted in rapid development of utilisation of satellite technologies for topographic surveys. Surveying experiments, performed in 2008 and 2009 at the chair of Engineering Geodesy and Topographic Surveys pointed to high usefulness of the RTK technology for topographic surveys. Research works, carried out at the surveying test site close to Grybów at the Nowy Sącz District, performed with the use of NAWGEO services of the ASG-EUPOS network proved that the expected maximum mean errors of horizontal locations and the ellipsoidal elevation of points, may be of the order of approximately 0.04m and 0.06 m, respectively (Malarski et al., 2010). Considering additional errors of the quasigeoid model, the issue is to obtain the centimetre accuracy in the system of normal elevations, which is required for topographic surveys. It seems that the proposal of Topcon company, concerning the mmGPS technology (Millimeter GPS) may meet those requirements.

Utilisation of free tacheometric stations in monitoring of monumental objects

63%

Malarski R. , Nagórski K.

2011

tom z. 1/90

271-278

This paper presents results of investigations concerning utilisation of free tacheometric stations for: a) Determination of slip of objects located on escarpments, b) Investigations of deformations of bodies of monumental objects. The usefulness of the proposed technology of surveys for implementation of the above tasks has been proved. Results of investigations have been illustrated by results of surveys of displacements and deformations of the St.Ann’s Academic Church in Warszawa.