Papers by Piotr Bętkowski
Wybrane problemy łożyskowania starych mostów kolejowych położonych na terenach górniczych
Wstępne podniesienie pomostu jako efekt zwisu cięgien podwieszających
O trwałości mostowych łożysk garnkowych
Konstrukcja odciążająca jako stały wiadukt kolejowy w warunkach znacznych górniczych osiadań terenu
Ocena za pomocą liczb przedziałowych i analiza niepewności typu rozmytego w mostach podwieszonych. Rozprawa doktorska (PhD thesis)
Selected Bearing Problems of Old Railway Bridges Located On Mining Areas in Poland
IOP Conference Series: Materials Science and Engineering, 2019
Dostosowanie obiektów mostowych do obniżonego koryta rzek i potoków
O pewnej metodzie kontroli naciągu cięgien mostów podwieszonych
Dwuetapowa przebudowa wiaduktu drogowego nad DK81 z tytułu szkód górniczych
Szacowanie przedziałów wiarygodności w zależnościach funkcyjnych : na przykładzie mostów podwieszonych
structures located in areas affected by mining operation are subjected to movements and til ting... more structures located in areas affected by mining operation are subjected to movements and til ting. Continuous monitoring of the structure’s response to these forces allows for the control of their impact on the technical condition of the structure. in the case of railway structures, the measurements may allow further determination of the impact of modifications to the geo metry of the structure on the track. This paper presents the results of observing indications of structural Health monitoring installed on an actual bridge construction under which mining operations were being conducted.
Prawidłowa identyfikacja zagrożeń jako element monitoringu pewnego mostu kolejowego
Control Method Stretches Suspensions by Measuring the Sag of Strands in Cable-Stayed Bridges
On a Method of Estimating Flexibility of Strands of Cable-Stayed Footbridges
Przebudowa wiaduktu kolejowego będącego pod wpływem znacznego górniczego osiadania terenu
Przebudowa i zabezpieczenie przed wpływami górniczymi niewielkiego wiaduktu kolejowego zintegrowanego z nasypem
Koncepcje przebudowy wiaduktu kolejowego poddanego wpływom eksploatacji górniczej
Transport Problems, 2020
This article describes three examples of bridge-type relieving constructions located on railway l... more This article describes three examples of bridge-type relieving constructions located on railway lines in the areas of active mining exploitation. It discusses how to take into account mining influences and how to support a temporary relieving construction on the railway embankment. This article discusses the incorrect solutions and their consequences. The first example involves the protection of train traffic continuity during the replacement of bridge span under an intensively used railway line. The second example shows the incorrect use of the relieving construction, leading to the relaxation of soil ground base and failure of a small brick arch railway bridge. The third example describes the use of the relieving construction as a permanent span of the railway bridge locates in the area where mining subsidence is over 14 m. The railway line locates on the third bridge; it is a single-track line, which is the only way to transport coal and equipment needed for operation in a large underground coal mine; interruptions of railway traffic longer than 4 working days (5 consecutive days) are unacceptable. This article has basic information about the effects of mining impacts, bridge-type steel relief constructions and a theoretical introduction enabling analysis of interactions of temporary supports and embankment in mining areas. All examples, especially the third one, contribute to development of knowledge in the field of civil engineering and transport.
Repair and Protection of Small Railway Viaduct with Jammed Span at the Mining Influence
IOP Conference Series: Materials Science and Engineering, Oct 1, 2017
IOP Conference Series: Earth and Environmental Science, 2019
In the article, the example of the rebuilding of the real bridge object shows, how to take into a... more In the article, the example of the rebuilding of the real bridge object shows, how to take into account the impact of mining area deformations on small frame railway viaducts integrated with the embankment. General principles are given, how to determine additional forces induced in the construction, such forces arise as a result of mining deformations on the surface of the area. It is discussed, how to shape the geometry of the bridge structure, so that in the future it will be possible to raise the level of the railway track even by several meters (in order to eliminate the local mining hollow), without rebuilding of the viaduct. Attention is paid to the necessity of shaping the foundations so that the impact on the subsoil tension under the embankment and under the viaduct is the same, so that the viaduct can settle in the same way as the adjacent railway embankment. In addition, technological aspects related to the adjustment of the viaduct to ground conditions (shallow, thin lay...
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Papers by Piotr Bętkowski