| 软质岩路堑高边坡加固技术优化研究 |
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| 引用本文： | 董武.软质岩路堑高边坡加固技术优化研究[J].路基工程,2019,0(5):23-28. |
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| 作者姓名： | 董武 |
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| 作者单位： | 中国国家铁路集团有限公司,北京,100084 |
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| 摘 要： | 依托尤溪车站的两个路堑高边坡断面，通过对边坡不同断面进行深部位移、预应力锚索锚固力和桩背土压力进行检测，分析了路堑软质岩高边坡的滑移特点和边坡现状；使用三维有限差分数值软件FLAC3D对两个断面及加固方案分别进行建模，分别计算了自重天然状态、暴雨下开挖状态以及支护后暴雨下开挖状态三个工况，通过对比检测项目和数值分析，验证了数值分析力学参数的正确性和模型的可行性。依据数值模拟结果分析，优化了路堑软质岩高边坡加固方案。
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| 关 键 词： | 铁路路基 加固技术优化 边坡检测 数值计算 软质岩路堑高边坡 |
| 收稿时间： | 2019-11-10 |
Study on Optimization of Reinforcement Technology for High Soft Rock Cutting Slope |
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| Abstract: | Based on the two sections of high cutting slope at Youxi Station, the sliding characteristics and current situation of high soft rock cutting slope are analyzed through testing the deep displacement, anchorage force of prestressing anchor cable and soil pressure behind piles of different sections of high cutting slope. The three-dimensional finite difference numerical software FLAC3D is used to model the two sections and reinforcement schemes respectively and the natural state of gravity, the excavation state under rainstorm and the excavation state under rainstorm after supporting are calculated respectively. The correctness of the numerical analysis mechanical parameters and the feasibility of the model are verified by comparing the test items and the numerical analysis results. Based on the analysis of numerical simulation results, the reinforcement scheme of high soft rock cutting slope is optimized. |
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