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Keywords: resistance
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Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-142
... Abstract Yield-Line Theory (YLT) has been in wide spread use since the 1960's.YLT allows determining of the upper-bound bending resistance of reinforced concrete slabs using the concept of virtual work.YLT can be used for two purposes in the design of sprayed concrete support...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-158
... with a sleek surface, the collocation of blasting positions and dynamite volume. factor analysis parameter optimization coefficient tunnel 4 machine learning resistance factor-regression model historical data Artificial Intelligence deviation regression analysis follow equation variance...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-068
... ABSTRACT Foroptimaldesignofrock-socketedshaftsusedtosupportaxialloading,theendbearing resistance should be considered. The existing empirical methods for determining the end bearing capacityq max ofrock-socketedshaftsuseempiricalrelationsbetweenq max andtheunconfined compressive strength...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-012
... in rock, the experimental data of electrical resistance were measured with stress or strain changing. The electrical resistance of siliceous-lime marble increases continuously with compressive stress from the initial loading to the greatest stress, but the increasing rate of electrical resistance...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-108
...,). Steel bolts which anchored support to the roof were modeled as amplifying elements (fig. 4, 5,). (Figure in full paper) 3 MODELING OF DYNAMIC RESISTANCE OF SUPPORT Design of effective strenghtening measures for higher resistance of break-through supports against rockbursts effects is based...

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