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A simplified algorithm for the design of piled raft foundations applied for the case study of a building erected within Żoliborz-Szczęśliwice glacial tunnel valley

100%

Kacprzak G., Mazurek K., Daktera T.

Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

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2015

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tom 47

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nr 2

A common engineering solution for excessive settlement with raft foundation (s) is the use of piles in order to reduce the vertical displacements, in this method, the whole structural load is transferred to the piles. This is an overly cautious approach, and there remains a need to find an optimal design method for a building’s foundations. Such a solution may be the piled raft foundation, which allows a reduction of the number of piles due to the integration of the raft in the bearing capacity of the foundation. The aim of the article is to estimate the contribution of foundation elements such as the raft and the piles in the bearing capacity of a residential building located in Warsaw, where the geological conditions are characterized by organic soil layers, principally of gyttja.

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On the definition of stratigraphical division boundaries in the Quaternary for the Scandinavian glaciated areas

67%

Mojski J. E.

Bulletin of the Polish Academy of Sciences. Earth Sciences

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1995

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tom 43

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nr 1

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Role of soil in the functioning of the Mazurian Lake District ecosystem

67%

Gotkiewicz J., Piascik H., Smolucha J.

Acta Agrophysica

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2001

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tom 50

The Macroregion of the Mazurian Lake District and the adjoining mesoregion of the Sępopol Plain were formed during Baltic glaciation and in the post-glacial period. The existing habitat differentiation, especially large variations in the soil cover, is divided into three distinct landscape zones. The northern areas of the district are typical heavy and very heavy soils, composed of tight clays and loams, represented by brown soils and black earths. They contribute to the ecosystem stability. Hydrogenic soils occupy only a small area. Agricultural production, when carried out correctly, should not threaten the habitat and should be in harmony with the area in question. The central, moraine area of the Mazurian Lake District, with unique natural qualities, is comprised of different soil forms and various soil covers. Brown and lessive soils are dominant among mineral soils. Deluvial soils are common, which is a warning sign on the danger of erosion. Contribution of hydrogenic soils is clearly seen. Protection of these soils, as well as re-naturalisation of the selected areas, is becoming vital. This area badly requires ecological farming. Light and very light soils, mainly rusty and podzo! soils, accompanied by large areas of sensitive for transformation hydrogenic, muck, and mucky soils occur in the southern part of the district, in the area of outwash plains. Outwash plains call for complex solutions to improve the quality of their mineral soils, as well as utilisation and protection of hydrogenic soils.

Ograniczanie wyników

1 Acta Agrophysica

1 Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

1 Bulletin of the Polish Academy of Sciences. Earth Sciences

1 Daktera T.

1 Gotkiewicz J.

1 Kacprzak G.

1 Mazurek K.

1 Mojski J. E.

1 Piascik H.

1 Smolucha J.

1 2015

1 2001

1 1995

A simplified algorithm for the design of piled raft foundations applied for the case study of a building erected within Żoliborz-Szczęśliwice glacial tunnel valley

On the definition of stratigraphical division boundaries in the Quaternary for the Scandinavian glaciated areas

Role of soil in the functioning of the Mazurian Lake District ecosystem