【摘 要】
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With the increase of mining depth of mineral resources,the rock mass stress state is being more and more complex.The rock mass show different features,namely,wi
【机 构】
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StateKeyLaboratoryofGeomechanicsandGeotechnicalEngineering
【基金项目】
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The study was supported by the National Natural Science Foundation of China (Nos.50774082 and 50804046).