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This paper presents a Fuzzy Cognitive Maps (FCM) enabled Root Cause Analysis (RCA) approach to assessing the TBM performance in tunnel construction. Fuzzy logic is used to capture and utilize construction experience and knowledge from domain experts, and a cause-effect model consisting of nine concepts is established for simulating the TBM performance within the FCM framework. A tunnel case in the...
This paper presents a hybrid risk-based estimate approach that integrates the fuzzy matter-element theory and Monte Carlo simulation method to assessing the safety risk of operational tailings ponds and sensitivity of influential factors under uncertainty. The fuzzy matter-element theory is used as a reasoning tool to solve contradictory problems with fuzziness and randomness; while the Monte Carlo...
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