| 大直径旋挖钢管混凝土桩滑坡应急抢险与工后变形监测 |
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| 引用本文： | 杨雪莲,邬凯,何思明,吴事贵.大直径旋挖钢管混凝土桩滑坡应急抢险与工后变形监测[J].路基工程,2019,0(1):184-190. |
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| 作者姓名： | 杨雪莲 邬凯 何思明 吴事贵 |
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| 作者单位： | 四川省交通运输厅公路规划勘察设计研究院,成都,610041;中国科学院、水利部成都山地灾害与环境研究所,成都,610041 |
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| 基金项目： | 四川省交通科技项目（2012C14-2） |
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| 摘 要： | 2011年8月23日，成（都）—雅（安）高速公路K1920+416处发生大型滑坡灾害，导致成雅高速公路断道约15天，该滑坡为“软弱基座式”压致拉裂型滑坡。为加快抢险施工进度，在国内首次采用大直径旋挖钢管混凝土桩进行滑坡应急处治。通过三维有限元数值模拟优化钢管混凝土桩滑坡加固处治方案，并结合工后滑坡地表位移监测，验证了滑坡应急处治工程的有效性，为滑坡应急整治提供一种高效工程治理措施。
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| 关 键 词： | 滑坡 抢险处治 大直径钢管混凝土桩 数值模拟 变形监测 |
| 收稿时间： | 2019-11-11 |
Large-diameter Rotary-drilled Concrete-filled Steel Pipe Piles for Landslide Emergency Rescue and the Deformation Monitoring after Construction |
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| Abstract: | On August 23, 2011, a large-scale landslide attacked the Section K1920+416 of Chengdu-Ya’an Highway, and the Highway was blocked for about 15 days by this"soft base type"compression-rupture landslide. In order to speed up the construction progress of emergency rescue, the large-diameter rotary-drilled concrete-filled steel pipe piles were adopted for the first time to deal with the landslide in China. This landslide reinforcement scheme of concrete-filled steel pipe pile was optimized by 3D finite element numerical simulation and, with the validity of this treatment for rescue verified by the ground displacement monitoring after the construction, it provided an effective engineering control measure for landslide emergency treatment. |
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