The Method on Surrounding Rock Classification for Highway Tunnel Construction Period in The Karst Areas of South China |
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| Authors: | HOU Fuchang OU Xiaoduo SU Jian TANG Yingchun LI Jiequan and PAN Xin |
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| Institution: | Ministry of Education Key Laboratory of Disaster Prevention and Structural Safety, Guangxi University, Nanning 530004,Nanning Ruiyu Architecture and Technology Co. Ltd, Nanning 530007;Ministry of Education Key Laboratory of Disaster Prevention and Structural Safety, Guangxi University, Nanning 530004;Ministry of Education Key Laboratory of Disaster Prevention and Structural Safety, Guangxi University, Nanning 530004;Ministry of Education Key Laboratory of Disaster Prevention and Structural Safety, Guangxi University, Nanning 530004;Ministry of Education Key Laboratory of Disaster Prevention and Structural Safety, Guangxi University, Nanning 530004,Nanning Ruiyu Architecture and Technology Co. Ltd, Nanning 530007;Ministry of Education Key Laboratory of Disaster Prevention and Structural Safety, Guangxi University, Nanning 530004 |
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| Abstract: | Through the statistical analysis of analyzed the particularity of karst surrounding rock classification, finally obtained the rock classification index system of south karst highway tunnel construction based on rock strength, rock complete coefficient ,groundwater state, structural plane state the structural plane strike to tunnel influence, karst development to tunnel influence. And the model is applied to tianshengqiao tunnel and guanshang 2 tunnel with the example verification, and compared with the classification results and experts judgment to get the accuracy is 93.3%. |
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