| 土质边坡中部与顶部抗滑桩动力响应和边坡变形比较 |
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| 引用本文： | 李荣建,于玉贞,李广信. 土质边坡中部与顶部抗滑桩动力响应和边坡变形比较[J]. 山地学报, 2010, 28(2) |
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| 作者姓名： | 李荣建 于玉贞 李广信 |
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| 作者单位： | 西安理工大学,岩土工程研究所,陕西,西安,710048;清华大学,水沙科学与水利水电工程国家重点实验室,北京,100084 |
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| 基金项目： | 清华大学重点实验室项目,国家自然科学基金重点项目 |
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| 摘 要： | 地震作用及其诱发的变形或滑坡常会使抗滑桩受力发生显著变化,为此,研究了地震作用下不同加固位置的抗滑桩的动力响应和边坡变形情况.试验分析表明:中桩位边坡坡顶变形比高桩位边坡坡顶变形大,但中桩位边坡坡脚堆积变形比高桩位边坡坡脚变形较小;在同样条件下中桩位抗滑桩的静力、动力弯矩小于高桩位抗滑桩相应位置的弯矩;地震结束后由于坡体震动残余变形较大,抗滑桩最终承担着震后残余弯矩,但高桩位抗滑桩的承载能力在震后仍然发挥较大.研究结果表明:高桩位加固位置可以有效发挥抗滑桩的抗弯承载能力,但中桩位可以有效抑制坡底坡脚变形.
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| 关 键 词： | 边坡 抗滑桩 动力试验 变形 弯矩 |
Analyses of Deformation of Slope and Dynamic Response of Stabilizing Piles Reinforced in the Middle and Near Crest of Slope in Earthquake |
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| LI Rongjian,YU Yuzhen,LI Guangxin. Analyses of Deformation of Slope and Dynamic Response of Stabilizing Piles Reinforced in the Middle and Near Crest of Slope in Earthquake[J]. Journal of Mountain Research, 2010, 28(2) |
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| Authors: | LI Rongjian YU Yuzhen LI Guangxin |
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| Affiliation: | LI Rongjian1,YU Yuzhen2,LI Guangxin2(1.Institute of Geotechnical Engineering,Xi'an University of Technology,Xi'an 710048,China,2.State Key Laboratory of Hydroscience , Engineering,Tsinghua University,Beijing 100084,China) |
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| Abstract: | The difference of response of stabilizing piles in differently installed position in slope should be properly realized in aseismic design for the reinforced slope.In this paper,the dynamic response of piles in differently installed position and the deformation of slope were compared.Based on the seismic response,the investigation and analyses evaluated the soil arching effect and effectively reinforced effect. According to the observed deformation of crest and bottom in slope,the settlement of slope's peak ... |
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| Keywords: | slope stabilizing pile dynamic test deformation bending moment |
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