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- W2393249102 abstract "Based on the dynamic programming principles,a dynamic programming model of excavation sequence for underground cavity groups was presented.The minimum strain energy deviation(objective function) criteria were proposed to choose the optimum scheme of the excavation sequence.The case studies show that the effect of excavation sequence on the stability of the surrounding rocks is obvious,and much attention should be paid to the optimum design of the excavation sequence.The present model is reasonable and easy to calculate.The maximum displacement around the cavity calculated by the deviation of shape change specific energy as the objective function is a little larger than that by the displacement as the objective function,but from the viewpoint of the stress conditions,the area and energy of plastic zones,the former is much better.Therefore,it's more reasonable to use the deviation of shape change specific energy as the objective function." @default.
- W2393249102 created "2016-06-24" @default.
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- W2393249102 date "2008-01-01" @default.
- W2393249102 modified "2023-09-24" @default.
- W2393249102 title "Optimum design of excavation sequence underground cavity groups" @default.
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