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现代隧道技术 2013, Vol. 50 Issue (2) :187-191    DOI:
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大直径自进式锚杆在隧道工程岩溶处治中的应用
1 华杰工程咨询有限公司,北京 100029,2 中国交通建设股份有限公司,北京 100088
Application of Large-Diameter Self-Drilling Rock Bolts in Karst Tunnels
(1   CHELBI Engineering Consultants, Inc., Beijing 100029;
2 China Communications Construction Company Limited, Beijing 100088)
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摘要      京昆线(国家高速公路网G5线)广陕路古家山隧道岩溶十分发育,以垂直向岩溶裂隙、溶槽、溶沟、漏斗发育为主,具有“多、深、窄”的特点。根据古家山隧道溶洞发育特点,隧道设计和施工中采取了回填、加固、跨越等溶洞处治方案,特别是T75 mm大直径自进式锚杆超前支护,具有施工快捷安全、技术经济合理等特点,在古家山隧道施工中得到了广泛应用,对岩溶处治发挥了较好的作用。
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Abstract: The Gujiashan tunnel on the Beijing-Kunming G5 line of the national highway network is a karst tunnel and is characterized by many deep and narrow vertical karst fissures, karst troughs, and karst ditches. Such measures as backfilling, reinforcement, and bridging were adopted for this project, and advance support with T75mm large-diameter self-drilling rock bolts was widely applied in the construction of the Gujiashan tunnel.
KeywordsKarst tunnel;Countermeasures against karst,   Self-drilling rock bolts     
出版日期: 2012-10-18
作者简介: 董志明(1980-),男,工学硕士,工程师,现主要从事高速公路隧道设计及科研工作,E-mail:zhim_dong@163.com
引用本文:   
.大直径自进式锚杆在隧道工程岩溶处治中的应用[J]  现代隧道技术, 2013,V50(2): 187-191
.Application of Large-Diameter Self-Drilling Rock Bolts in Karst Tunnels[J]  MODERN TUNNELLING TECHNOLOGY, 2013,V50(2): 187-191
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