摘要
四渡河特大悬索桥是一座主跨为900m的单跨悬索桥,宜昌岸采用隧道式锚,介绍隧道锚固系统数值分析过程中初始地应力场的形成,隧道式锚碇与公路隧道的新奥法施工过程模拟,隧道锚隧洞周边接触软弱层的模拟,简要分析了围岩的稳定性,得出隧道锚固系统的整体安全度。
s: Sidu River Bridge is a suspension bridge with 900 meter main span and the tunnel-type anchor in Yichang side is adopted. In this paper, the formation of the earth stress field in numerical analysis of tunnel-type anchorage system of Sidu River Suspension Bridge is introduced, how to simulate the New Austria construction of tunnel type anchorage and road tunnel is explained, and how to simulate the weak formation around the anchor illuminated. Last, according to the analysis of the stability of surrounding rock the safety factors of the tunnel-type anchorage system are concluded.
出处
《公路》
北大核心
2005年第5期48-51,共4页
Highway
