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高地应力千枚岩地层隧道大变形控制措施探讨 被引量:8

Discussion on Large Deformation Controls for Tunnels in High Geo-stress Phyllite Stratum
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摘要 根据兰渝线两水隧道施工中出现大变形的工程实例,对其高地应力地层岩性、变形规律、支护破坏特征、变形原因进行了分析。根据现场科研试验段控制措施调整情况及现场控制效果,总结了该类地层中隧道大变形控制技术措施。结合现场变形监测数据结果,探讨了千枚岩、炭质千枚岩地层大变形的发展规律。 Large deformations were observed during the construction of Liangshui Tunnel in Lanyu Railway. With respect to this case, this paper analyzed the characteristics of high geo-stress stratum lithology, deformation behaviour and failure characteristics of supports. On-site tests were performed to control the deformation and based on the test results, large deformation control measures were proposed for similar geological conditions. With the site monitoring data, principles governing the large deformation behavior of phyllite stratum were also addressed.
作者 宋嘉辉
出处 《施工技术》 CAS 北大核心 2012年第7期90-92,95,共4页 Construction Technology
关键词 隧道工程 千枚岩 高地应力 变形规律 监测 控制措施 tunnels phyllite high geo-stress deformation monitoring control measures
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