西康高速公路K129滑坡失稳分析及治理工程动态设计与信息化施工

祝建 姜海波 蔡庆娥

祝建, 姜海波, 蔡庆娥. 2012: 西康高速公路K129滑坡失稳分析及治理工程动态设计与信息化施工. 工程地质学报, 20(3): 433-439.
引用本文: 祝建, 姜海波, 蔡庆娥. 2012: 西康高速公路K129滑坡失稳分析及治理工程动态设计与信息化施工. 工程地质学报, 20(3): 433-439.
ZHU Jian, JIANG Haibo, CAI Qing'e. 2012: INSTABILITY ANALYSIS,OBSERVATIONAL DESIGN AND INFORMATIVE CONSTRUCTION OF K129 LANDSLIDE ON XIKANG HIGHWAY,SHAANXI. JOURNAL OF ENGINEERING GEOLOGY, 20(3): 433-439.
Citation: ZHU Jian, JIANG Haibo, CAI Qing'e. 2012: INSTABILITY ANALYSIS,OBSERVATIONAL DESIGN AND INFORMATIVE CONSTRUCTION OF K129 LANDSLIDE ON XIKANG HIGHWAY,SHAANXI. JOURNAL OF ENGINEERING GEOLOGY, 20(3): 433-439.

西康高速公路K129滑坡失稳分析及治理工程动态设计与信息化施工

详细信息
  • 中图分类号: U418

INSTABILITY ANALYSIS,OBSERVATIONAL DESIGN AND INFORMATIVE CONSTRUCTION OF K129 LANDSLIDE ON XIKANG HIGHWAY,SHAANXI

  • 摘要: K129滑坡位于陕西镇安县青铜镇梅花铺以东古滑坡体上,高速公路的修建迫使102省道向山侧改线,挖除古滑坡前缘近6×104m3土体,未采取合理的防护措施。2009年10月,古滑坡出现复活,变形迅速发展,造成高速公路路面隆起、挡墙开裂,呈现整体下滑趋势。滑坡一旦失稳,不仅中断西康高速公路和102省道,而且可能堵塞乾佑河,形成滑坡坝和堰塞湖,对上下游人民的生命财产造成严重威胁。针对该滑坡,以地质分析为基础,深入研究了滑坡的失稳破坏模式。分析发现,粉质黏土混碎块石与千枚岩组成的脆弱地质结构和水岩作用是形成滑坡的控制因素,集中降雨是滑坡发生的主要诱发因素,工程开挖削弱滑坡的锁固段,加速了滑坡的变形。同时,利用多种监测成果和施工反馈信息,反映出滑坡的变形速率特征和空间变形特征,即以后部推移为主,前部牵引为辅的基岩接触面滑坡,并及时采取应急抢险工程,调整设计和施工方案,做到动态设计和信息化施工,确保了滑坡治理工程安全顺利完成。
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出版历程
  • 收稿日期:  2011-06-30
  • 修回日期:  2011-11-24
  • 刊出日期:  2012-06-25

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