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Analiza przyczyn katastrofy budowlanej na Zamku Książąt Pomorskich w Szczecinie w świetle dotychczasowych ustaleń

Tarnawski Marek, Godlewski Tomasz

Przegląd Geologiczny

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2021

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Vol. 69, nr 12

884--898

EN

The Renaissance Pomeranian Dukes'Castle in Szczecin was built in the late 16th century in place of older buildings. At that time, the construction, and in particular the foundation of buildings on non-diagenized sediments, was more of an art than a science, since soil mechanics was being born only in the 18thand 19th centuries. However, the experience and intuition of old building masters also allowed for the construction of monumental structures that could survive hundreds or thousands of years. Their walls looked solid, so there was no fear of making further renovations and rebuilding in the following centuries. Meanwhile, in 2017, the complex of columns supporting the ceilings of the three-story rooms and the basement in the northern wing of the castle collapsed underground. It happened around 430 years after the completion of construction. The article discusses the results of various types of geotechnical tests, the purpose of which was to determine the causes of the catastrophe. Thanks to the research, a complex of underground tunnels made mostly during World War II, but also previously suspected, was discovered and largely documented. The article summarizes the actual arrangements and describes geological and historical conditions regarding the course and causes of the Castle's construction disaster in Szczecin. The knowledge resulting from these studies and analyses makes us approach with great caution any interference in the existing static system of seemingly powerful and indestructible historic buildings.

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The loadings due to traffic considered in design of trenchless rehabilitation of sewage pipes

Kuliczkowski A., Kuliczkowska E., Parka A.

Structure and Environment

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2010

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Vol. 2, no. 2

45-53

EN

New method "KA-17" used for making calculations of the values of road traffic loads and created by prof. Andrzej Kuliczkowski, is presented here. Proposed method considers the influence of different types of soil placed above existing sewers on the values of road traffic loads acting on sewers. Several curves created for different diameters, different types of soil and vehicles and expressed as a function of a height of soil column above the sewer are also given. Attached examples explain how the values of road traffic loads change depending on the above mentioned parameters. Besides a comparative analysis of two methods used for making calculations of the values of road traffic loads (according to Scandinavian and KA-17 methodology) is included in the paper. Thorough analysis of basic problems that the one can face during determining the values of a dynamic coefficient is also presented. Additionally the influence of a reducing coefficient expressed among the other things. As a function of different types of a road surface on final values of loadings acting on sewer is explained. Following the results of thorough researches above mentioned analyses are recommended as an especially useful for e.g. evaluation of a safety coefficient of sewer to be renovated or for calculations of optimum wall thickness of linings used for trenchless reconstruction of sewers as well as other pipes used for underground constructions.

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Budownictwo podziemne jednym z czynników zapewnienia zrównoważonego rozwoju.

Grodecki W.

Geoinżynieria i Tunelowanie

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2005

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nr 1

28-33

PL

Wiek XX, a zwłaszcza ostatnie dekady, przynoszą gwałtowny rozwój budownictwa podziemnego, przede wszystkim dla celów komunikacyjnych związanych z rozwojem dróg kołowych, kolejowych i wodnych, z rozwojem wielkich aglomeracji i koniecznością zapewnienia transportu miejskiego, ewakuacji ścieków itp. Dzieje się tak dlatego, że budowle podziemne pozwalają na umieszczenie w nich niektórych rodzajów działalności człowieka oraz infrastruktury, której usytuowanie na powierzchni terenu jest trudne, niemożliwe lub niekorzystne z punktu widzenia ochrony naturalnego środowiska. Artykuł opisuje korzyści wynikające z uwolnienia powierzchni terenu, przedstawia koszty budowy obiektów podziemnych i kierunki rozwoju budownictwa podziemnego.

EN

According to the United Nations prognosis in 2030 the world population shall reach 8.1 billion, with 61% of the people living in urban areas. This poses a challenge for metropolitan executives who must ensure proper conditions of habitation and sustainable development for city dwellers, paralleled with compliance to the demands of environmental protection. The present discourse aims to classify and expound on the benefits emerging from relocation of select areas of human activity to underground structures. The text discusses approach, in the author’s opinion common though defective, applied to evaluating the costs of underground structures and comparing with data for surface constructions. It is emphasized that a thorough economic report should not omit the maintenance costs germane during the whole period of the underground structure’s operation and pass over the added savings consequent to lack of land purchase / lease costs as applicable in case of aboveground structures. Further various types of risks pertinent to tunneling are recapped with indication of trends anticipated in development of underground constructions.