| 青岛崂山路拓宽工程边坡加固稳定性研究 |
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| 引用本文： | 魏启炳,刘志彬,鲁洪强,高俊启.青岛崂山路拓宽工程边坡加固稳定性研究[J].煤田地质与勘探,2017,45(2):101. |
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| 作者姓名： | 魏启炳 刘志彬 鲁洪强 高俊启 |
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| 摘 要： | 针对青岛崂山路拓宽工程中高陡岩质边坡加固问题，选择典型（C区）坡体，建立数值分析模型，基于强度折减法采用三维快速拉格朗日法（FLAC3D）对该边坡加固前后的稳定性进行了数值模拟。通过对计算边坡稳定性的3种失稳判据进行比较分析，选取特征点位移突变为失稳判据，确定了边坡加固前后安全系数的变化。基于现场实际监测数据，对加固后边坡的稳定状态和加固效果进行评价。对该边坡的数值分析及监测结果分析表明，边坡处于安全状态，加固工程取得了明显的效果。
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| 关 键 词： | 岩质边坡 强度折减法 FLAC3D 稳定性评价 边坡锚固 |
| 收稿时间： | 2015-11-19 |
Stability analysis of slope reinforcement of the broadening project of Laoshan road in Qingdao |
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| Abstract: | In order to deal with the reinforcement effect of high and steep slope of Laoshan road of Qingdao, the typical slope (zone C) was selected for numerical analysis based on strength reduction method. The three dimensional fast Lagrangian analysis method (FLAC3D) was used to analyze the slope stability before and after reinforcement. After the comparison of three types of instability judgment criteria during slope stability calculation, the sudden displacement change of characteristic position was finally chosen as the instability judgment criterion in this research due to its practicability. Then the safety factor of the slope before and after reinforcement was determined, which confirmed the design scheme of the reinforcement. Finally, the stability state of the studied slope and corresponding reinforcement effect were verified by long term field monitoring data. The result showed that the slope is in a stable state and slope reinforcement had obvious effect. |
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