【摘 要】
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The geological conditions of tunnel engineering are complex and changeable,which leads to great difference between the surrounding rock classification in survey design stage and in construction stage.
【机 构】
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Shandong University,Jinan,Shandong,China
论文部分内容阅读
The geological conditions of tunnel engineering are complex and changeable,which leads to great difference between the surrounding rock classification in survey design stage and in construction stage.So a multi-index matter-element extension evaluation model for tunnel surrounding rock advanced optimization classification is established based on tunnel seismic prediction(TSP)and extension theory.Firstly,by collecting and collating information and results from the prediction data of a large number of typical TSP examples,the rock mass integrity index Kv,Youngs modulus E,the longitudinal wave velocity Vp,Poissons ratio μ,and groundwater W were selected as evaluation indexes of surrounding rock classification.According to seismic wave field response characteristics of various influence factors,the influence factors were divided in detail.Then,quantitative indicators were collected by using the TSP detection technology.Some main quantitative indicators with quantitative preprocessed were used to build the matter-elements.
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