Utjecaj strukturno-petrografskih, hidrodinamičkih i ostalih čimbenika na trošenje stijena u temelju dubrovačkih zidina

Scientific paper - Original scientific paper

• Title (english): The impact of structural-petrographic, hydrodynamic and other factors on rock weathering in the foundation of the Dubrovnik ramparts
• Author: Ivan Tomašić
• Author: Vladimir Andročec
• Author's institution: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Mineralogy, Petrology and Mineral Resources)
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Geology
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering

Abstract (croatian)

Otpornost, stabilnost i postojanost stijenske mase u temelju dubrovačkih zidina izučavana je u uvjetima djelovanja različitih čimbenika, a posebno pod utjecajem abrazije, erozije i korozije morske vode. Pojedinačno obrađeni i utvrđeni različiti čimbenici prikazani su prema intenzitetu djelovanja. Posebno se može istak-nuti snažno djelovanje morskih valova (compression shock), pritiska kristalizacijskih soli (NaCl), stezanje i rastezanje kalcita, parni pritisci u pornom prostoru i kemo-korozivni utjecaj morske vode. Složeno i cikličko ponavljanje ovih procesa zbiva se u višestruko tektoniziranim i kataklaziranim dolomitima koje karakterizira specifičan strukturno-petrografski sklop. Diferencijalni i progresivni učinak pojedinih procesa samo je dio složenih uvjeta u kojima se spomenute stijene oslabljuju, troše i raspadaju.

Abstract (english)

Resistivity, stability and durability of the rock mass in the foundation of the Dubrovnik ramparts have been studied in the conditions effected by different factors, especially by abrasion, erosion and corrosion of sea water. Individually treated and established different factors are presented according to the intensity of their action. Intensive action of sea waves (compression shock), the pressure of crystalization salts (NaCl). contraction and extension of calcite, vapour pressures in the pore space and chemo-corrosive influence of sea water need to be particularly discussed. Complex and cyclic repetition of these processes occurs in multiple tectonized and cataclysed slructural-petrographic fabric. Differential and progressive effect of individual processes is only a part of complex conditions under which the mentioned rocks become weak, weathered and desintegrated.

• Keywords (croatian): strukturni sklop; petrografska svojstva; hidrodinamičko opterećenje; valovi; valni tlakovi; otpornost; stabilnost i postojanost stijena
• Keywords (english): structural fabric; petrographic properties; hydrodynamic loads; waves; wave pressures; resistivity; stability and durability
• Language: croatian
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Unknown
• Publication version: Published version
• Journal title: Rudarsko-geološko-naftni zbornik
• Numbering: vol. 3, no. 1, pp. 35-43
• p-ISSN: 0353-4529
• e-ISSN: 1849-0409
• URN:NBN: urn:nbn:hr:169:212426
• Publication: 1991
• Document URL: https://hrcak.srce.hr/24732
• Type of resource: Text
• Access conditions: Open access
• Created on: 2024-04-03 12:45:07