摘要
以大跨小净距上覆高压电塔的麒麟山隧道为背景,通过对该隧道开挖过程中中岩(土)柱上部浅埋地表沉降点沉降、围岩内部位移、钢支撑内力等项目的监测,得出中岩(土)柱力和位移的变化规律,为中岩柱的加固提供理论依据。本工作可为曰后类似工程中岩柱的设计、施工和研究提供有益的借鉴和参考。
The monitoring of deformation including the surface settlement,surrounding rocks displacement and the inner force of steel support,etc.has been performed for a tunnel with super-large-span,small-spacing and overlying a high voltage tower during the tunnel construction,and the variation laws of force and displacement of middle rock pillar are obtained,These provide the basis for middle rock pillar reinforcing.The results could be adopted in design,construction and research of similar tunnels.
出处
《建筑监督检测与造价》
2011年第3期23-27,共5页
Supervision Test and Cost of Construction
关键词
施工
隧道
超大跨度
变形监测
construction
tunnelsuper-large-span
deformation monitoring
