| 基于功–能关系的滑坡典型受灾体易损性评估模型 |
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| 引用本文： | 吴越,刘东升,陆新,宋强辉,吴应祥.基于功–能关系的滑坡典型受灾体易损性评估模型[J].岩石力学与工程学报,2011,30(Z1):2946-2953. |
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| 作者姓名： | 吴越 刘东升 陆新 宋强辉 吴应祥 |
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| 作者单位： | (1. 后勤工程学院 建筑工程系，重庆 400041；2. 重庆市地质矿产勘查开发局，重庆 400039) |
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| 摘 要： | 针对目前滑坡灾害受灾体易损性评估定量化程度不高的现状，以典型受灾体(框架结构)为例，对易损性定量评估方法进行初步探讨。通过分析滑体对受灾体(框架结构)的冲击破坏过程，认为在滑体冲击受灾体过程中冲击力做功使冲击能逐步转化为受灾体变形能。由于出现不可恢复的塑性变形，变形能逐步耗散，而导致受灾体发生毁损，直至倒塌。将受灾体倒塌时所耗散的变形能作为抗灾性能指标，滑体冲击能作为致灾强度指标，建立起反映受灾体毁损程度与致灾强度和抗灾性能的定量函数关系。基于这一函数关系，采用能量法计算滑速，从而建立简化情况下滑坡受灾体易损性定量评估模型。该模型可反映致灾强度因素和抗灾性能因素及不确定性对易损性的影响。
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| 关 键 词： | 边坡工程滑坡易损性风险评估 |
| 收稿时间： | 2010-03-04; |
A QUANTITATIVE VULNERABILITY ASSESSMENT MODEL FOR TYPICAL ELEMENT AT LANDSLIDE RISK BASED ON WORK-ENERGY TRANSFORMATION |
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| WU Yue,LIU Dongsheng,LU Xin,SONG Qianghui,WU Yingxiang.A QUANTITATIVE VULNERABILITY ASSESSMENT MODEL FOR TYPICAL ELEMENT AT LANDSLIDE RISK BASED ON WORK-ENERGY TRANSFORMATION[J].Chinese Journal of Rock Mechanics and Engineering,2011,30(Z1):2946-2953. |
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| Authors: | WU Yue LIU Dongsheng LU Xin SONG Qianghui WU Yingxiang |
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| Affiliation: | (1. Department of Civil Engineering，Logistical Engineering University of PLA，Chongqing 400041，China；;
2. Chongqing Bureau of Geology and Minerals Exploration，Chongqing 400039，China) |
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| Abstract: | Based on the situation that the quantitative degree for assessing the vulnerability of element at landslides risk is low,the quantitative assessment method of the vulnerability is discussed.Through analyzing the failure process of element at risk impacted by the landslide mass,it is considered that the impact energy translates into the deformation energy of element at risk gradually,which is caused by impact force work in process of element at risk impacted by the landslide mass.Because of plastic deformati... |
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| Keywords: | slope engineering landslide vulnerability risk assessment |
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