摘要
古田隧道在施工过程中诱发了洞身一古滑坡的复活,造成山体不稳定,地表塌陷开裂,隧道偏压,初期支护严重变形等一系列的问题。设计采用地表抗滑桩和微型桩,洞内超前小导管注浆、密排工字钢架加强支护、预应力锚杆,并优化衬砌断面型式等措施,在施工中取得了较好的效果。
A landslide revival was induced in the construction, leading to instability of the mount body, collapse and crack of surface ground, eccentric pressure of the tunnel and serious deformation of the primary supporting. Comprehensive measures are adopted including anti-slide piles and micro-piles with anchor bars for the surface, lead tremie grouting inside tunnel, strengthened support with I-steel, prestressed anchor bar, and improved cross section of lining, which achieved good results.
出处
《石家庄铁道学院学报》
2004年第B05期25-27,34,共4页
Journal of Shijiazhuang Railway Institute
关键词
隧道
滑坡
处理
设计
tunnel
landslide
treatment
design
