TY - JOUR
ID - 56106
TI - Application of tests of goodness of fit in determining the probability density function for spacing of steel sets in tunnel support system
JO - International Journal of Mining and Geo-Engineering
JA - IJMGE
LA - en
SN - 2345-6930
AU - Basaligheh, Farnoosh
AU - Keyhani, Ali
AD - Department of Civil Engineering, University of Shahrood, Shahrood, Iran
Y1 - 2015
PY - 2015
VL - 49
IS - 2
SP - 187
EP - 203
KW - Probability density function
KW - random variable
KW - reliability
KW - steel sets
KW - temporary support
KW - tunnel
DO - 10.22059/ijmge.2015.56106
N2 - 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.
UR - https://ijmge.ut.ac.ir/article_56106.html
L1 - https://ijmge.ut.ac.ir/article_56106_2b2a36c77c039f77e76914efc1148ec7.pdf
ER -