Published in: مجله بین المللی معدن و مهندسی زمین، دوره: 49، شماره: 2
COI code: JR_IJMGE-49-2_003
Paper Language: English
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Authors Application of tests of goodness of fit in determining the probability density function for spacing of steel sets in tunnel support systemFarnoosh Basaligheh - Department of Civil Engineering, Shahrood University of Technology, Shahrood, Iran
Ali Keyhani - Department of Civil Engineering, Shahrood University of Technology, Shahrood, Iran
Abstract:One of the conventional methods for temporary support of tunnels is to use steel sets with shotcrete. The nature of a temporary support system demands a quick installation of its structures. As a result, the spacing between steel sets is not a fixed amount and it can be considered as a random variable. Hence, in the reliability analysis of these types of structures, the selection of an appropriate probability distribution function of spacing of steel sets is essential. In the present paper, the distances between steel sets are collected from an under-construction tunnel and the collected data is used to suggest a proper Probability Distribution Function (PDF) for the spacing of steel sets. The tunnel has two different excavation sections. In this regard, different distribution functions were investigated and three common tests of goodness of fit were used for evaluation of each function for each excavation section. Results from all three methods indicate that the Wakeby distribution function can be suggested as the proper PDF for spacing between the steel sets. It is also noted that, although the probability distribution function for two different tunnel sections is the same, the parameters of PDF for the individual sections are different from each other.
Keywords:probability density function, random variable, reliability, steel sets, temporary support, tunnel
COI code: JR_IJMGE-49-2_003
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Basaligheh, Farnoosh & Ali Keyhani, 2015, Application of tests of goodness of fit in determining the probability density function for spacing of steel sets in tunnel support system, International Journal of Mining and Geo-Engineering 49 (2), https://www.civilica.com/Paper-JR_IJMGE-JR_IJMGE-49-2_003.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Basaligheh, Farnoosh & Ali Keyhani, 2015)
Second and more: (Basaligheh & Keyhani, 2015)
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Type: state university
Paper No.: 7051
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