id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ap-1043	Hilar, M.; Pruška, J.	Statistical Analysis of Input Parameters Impact on the Modelling of Underground Structures	2008	6	.pdf	application/pdf	3348	150	56	A multi- criteria analysis resulted in the selection of pre-excavation 6 © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ Acta Polytechnica Vol. 48 No. 5/2008 Number of calculation a b In �1 In � 2 In � 3 In � 4 In � 5 Value qij’ �1 1 �0.64 �0.26 0.00 0.26 0.64 Ground 1 25 27 25.4 25.6 26.0 26.4 26.6 Ground 2 27 29 27.4 27.6 28.0 28.4 28.6 Ground 3 22 25 22.5 22.9 23.5 24.1 24.5 Ground 4 25 30 25.9 26.5 27.5 28.6 29.1 Ground 5 30 35 30.9 31.5 32.5 33.6 34.1 Ground 6 35 38 35.5 35.9 36.5 37.1 37.5 Ground 7 35 38 35.5 35.9 36.5 37.1 37.5 Ground 8 25 28 25.5 25.9 26.5 27.1 27.5 Table 1: Input � values for various geotechnical layers based on random intervals Calculation q E1 � q2 � � q3 � � q c4 � q5 � � 1 4 2 2 5 3 2 1 3 5 2 1 3 3 5 3 4 5 4 5 1 4 3 4 5 2 4 1 1 2 Table 2: Random permutations of the input parameters qi Parameter qij Edef This classification was established in 1974 in Norway (by Barton, Lien, Lunde and Loset) and is based on six parameters [4]: Q RQD J J J J SRFn r a w � � � , (1) where RQD � rock quality designation, Jn � joint set num- ber, Ja � joint alteration number, Jw � joint water reduction number, SRF � stress reduction factor.	cache/ap-1043.pdf	txt/ap-1043.txt