| 岩质边坡上桥梁基桩受力分析及试验研究 |
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| 引用本文： | 刘建华,赵明华,邬龙刚.岩质边坡上桥梁基桩受力分析及试验研究[J].中南公路工程,2006,31(4):25-29. |
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| 作者姓名： | 刘建华 赵明华 邬龙刚 |
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| 作者单位： | 湖南大学岩土工程研究所,湖南长沙410082 |
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| 基金项目： | 国家自然科学基金资助项目（50578060） |
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| 摘 要： | 岩质边坡卜桥梁基桩具有承重与阻滑双重功能，其受力性状远比抗滑桩和平地上两侧无坡度的单一倾斜受荷桩要复杂得多。在考虑高陡岩质边坡滑坡推力的基础上，采用有限差分数值分析方法对该类基桩进行分析。推导出适用于岩质边坡上坡桥梁基桩内力及位移分析的有限差分解，并结合岩质边坡上桥梁基桩室内模型试验，对该类基桩的受力性状进行了探讨。通过计算值与实测值的比较可知。所提出的针对岩质边坡上桥梁基桩的有限差分法是可行的，深入探讨该类基桩受力特点具有一定的理论和工程应用。
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| 关 键 词： | 桩基础 有限差分法 倾斜荷载桩 岩质边坡 模型试验 |
| 文章编号： | 1002-1205(2006)04-0025-05 |
| 收稿时间： | 2006-03-06 |
| 修稿时间： | 2006年3月6日 |
Stress Analysis and Model Test Study on the Bridge Piles in Rock Slope |
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| LIU Jianhua, ZHAO Minghua, WU Longgang.Stress Analysis and Model Test Study on the Bridge Piles in Rock Slope[J].Central South Highway Engineering,2006,31(4):25-29. |
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| Authors: | LIU Jianhua ZHAO Minghua WU Longgang |
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| Institution: | Geotechnical Institute of Hunan University, Changsha, 410082, China |
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| Abstract: | The bridge pile foundation in rock slope has double function of bearing load from superstructure and counteracting landslide-thrust from pile foundation side, and the mechanical behavior of pile in rock slope is much more complex than anti-slide pile and simplex inclined-loading pile. In the paper, based on considering landslide-thrust of rock slope, the numerical analytical method of finite difference method is introduced to calculate moment of pile, and combined the model test of pile in rock slope, the stress status of pile in rock slope is analyzed. Comparison of calculation and measurement maximum moment of pile show that the presented approach is feasible and applicable in engineering practice. |
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| Keywords: | pile foundation finite difference method inclined-loading pile rock slope model test |
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