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| 基于加卸载响应比理论的降雨型滑坡预警研究 | |
| 引用本文： | 邬凯,盛谦,张勇慧. 基于加卸载响应比理论的降雨型滑坡预警研究[J]. 地震学刊, 2011, 0(6): 632-636 |
| 作者姓名： | 邬凯 盛谦 张勇慧 |
| 作者单位： | [1]中国科学院武汉岩土力学研究所、岩土力学与工程国家重点实验室,武汉430071 [2]四川省交通厅公路规划勘察设计研究院,成都610041 |
| 基金项目： | 西部交通建设科技项目（200831878542）; 国家高技术研究发展计划（863）专项课题（2007AA11Z121）; 国家自然科学基金项目（40972202）资助 |
| 摘 要： | 在建立边坡远程实时监测系统并获得变形与降雨量连续监测数据的基础上,运用加卸载响应比理论的基本原理,提出以一用为加卸载周期、将日降雨量及其变化作为边坡的加卸载参数、相应的日平均变形速率及其变化值为加卸载响应参数,建立了基于加卸栽响应比的降雨型滑坡短周期预警模型。以某公路边坡为例,运用加卸载响应比预测模型对边坡的2个监测点进行了加卸载响应比计算,发现2个点的加卸载响应比时序曲线与其稳定性动态演化规律相吻合。研究结果表明,可以运用该模型进行降雨型滑坡短周期预测预警。 |
| 关 键 词： | 降雨型滑坡 加卸载响应比 远程实时监测 滑坡预警 |
Research on Early Warning of Rainfall-induced Landslides Based on Load-unload Response Ratio Theory |
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| WU Kai,SHENG Qian,ZHANG Yong-hui. Research on Early Warning of Rainfall-induced Landslides Based on Load-unload Response Ratio Theory[J]. Journal of Disaster Prevent and Mitigation Eng, 2011, 0(6): 632-636 | |
| Authors: | WU Kai SHENG Qian ZHANG Yong-hui |
| Affiliation: | 1 (1.State Key Laboratory of Geomechanics and Geotechnical Engineering,Institute of Rock and Soil Mechanics, Chinese Academy of Sciences,Wuhan 430071,China; 2.Highway Planning,Survey,Design and Research Institute,Sichuan Provincial Communications Department, Chengdu 610041,China) |
| Abstract: | Based on the real-time remote monitoring system of slope,this paper proposes that the daily rainfall and its change can be selected as the loading-unloading dynamical parameter and the average deformation velocity and its change as the dynamical response parameter to establish the short cycle pre-warning model of rainfall-induced landslides.The calculation of loading-unloading response ratio of monitoring points of a mountain highway slope is completed by using the loading-unloading response prediction model. The computation results show that the curves of loading-unloading response ratio of monitoring points agree with the dynamic evolution law of the slope stability.All the above-mentioned results show that the daily rainfall dynamic model of the loading-unloading response ratio can be used to perform the short cycle early warning of the rainfall-induced landslides. |
| Keywords: | rainfall-induced landslides loading-unloading response ratio real-time remote monitoring landslide pre-warning |
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