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《Science Technology and Engineering》 2014-17
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Study on Deformation Monitoring of Meihuashan Tunnel Surrounding Rock under NATM Principle Construction

WEN Jian-hua;LU Jing;College of Water Conservancy and Civil Engineering South China Agricultural University;  
Monitoring measurement was an important part of New Austrian Tunneling Method( NATM). Based on the Meihuashan tunnel construction,some items of monitoring and measurement,such as vault settlement,surrounding rock convergence,etc. were designed to explore the surrounding rock displacement. According to the measuring data regression analyses and the stability state of surrounding rock,the most reasonable time of second supporting was decided. The results showed that safe construction of Meihuashan tunnel was improved under the new second supporting time criterion.
【Fund】: 国家自然科学基金重点项目(41030747)资助
【CateGory Index】: U455.48;U456.3
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