Djemalddine M. Boumezerane (Author), Smaïn Belkacemi (Author), Bojan Žlender (Author)

Abstract

A geotechnical site investigation is an important and complex task that is generally carried out in two steps. The first step, consisting of preliminary soundings, guides the subsequent site characterization. The number of soundings required to adequately characterize a site is set on the basis of an engineering judgement following the preliminary investigation, this is affected by the geological context, the area topography, the project type, and the knowledge of the neighbouring areas. A fuzzy-sets decision-support system, considering parameters that affect the number of soundings required to adequately characterize a site, is proposed. Parameter uncertainties and a lack of information are also considered. On the basis of the available qualitative and quantitative information, the proposed fuzzy system makes it possible to estimate, for a common project, the number of site soundings required to adequately characterize the site. The cases presented show that a Fuzzy Inference System can be used as a systematic decision-support tool for engineers dealing with site characterizations.

Keywords

geotechnical investigation;soundings number;fuzzy sets;fuzzy inference;uncertainties;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UM FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture
UDC: 624.131.1:528
COBISS: 15243798 Link will open in a new window
ISSN: 1854-0171
Parent publication: Acta geotechnica Slovenica
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Other data

Secondary language: Slovenian
Secondary title: Sistem mehke množice za odločanje pri geotehničnem načrtovanju
Secondary abstract: Geotehnična terenska raziskava je pomembna in kompleksna naloga, ki se na splošno izvede v dveh korakih. Prvi korak, ki vsebuje preliminarne raziskave, vpliva na kasnejšo terensko raziskovanje. Glede na predhodne raziskave, se na podlagi inženirske presoje določi število raziskovalnih sond, potrebnih za ustrezen opis terena. Na to vplivajo geološke sovisnosti, topografija področja, vrsta projekta, ter poznavanje sosednjih površin. Za odločanje je predlagan podporni sistem mehke množice (fuzzy sets decision support system). Sistem upošteva parametre, ki vplivajo na število raziskovalnih mest, potrebnih za ustrezen opis terena. Pri tem se upoštevajo tudi parametri negotovosti in pomanjkanja informacij. Predlagani sistem mehkega sklepanja (Fuzzy Inference System) omogoča, da se na podlagi razpoložljivih kvalitativnih in kvantitativnih informacij oceni število raziskovalnih točk, potrebnih za ustrezen opis terena. Iz predstavljenih primerov je razvidno, da se lahko sistem mehkega sklepanja uporablja kot sistematično orodje za pomoč pri odločanju, za inženirje, ki se ukvarjajo s terenskimi raziskavami.
Secondary keywords: geotehnično raziskovanje;število sond;mehke množice;mehko sklepanje;negotovosti;
URN: URN:SI:UM:
Type (COBISS): Scientific work
Pages: str. 51-63
Volume: ǂVol. ǂ8
Issue: ǂ[no.] ǂ1
Chronology: 2011
ID: 10941013