| 转折型沟谷对地震崩塌体块石拦截效果分析 |
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| 引用本文： | 王学良,张路青,周剑.转折型沟谷对地震崩塌体块石拦截效果分析[J].工程地质学报(英文版),2011,19(3):381-387. |
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| 作者姓名： | 王学良 张路青 周剑 |
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| 作者单位： | 1.中国科学院工程地质力学重点实验室 中国科学院地质与地球物理研究所 北京 100029 |
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| 基金项目： | 国家科技支撑课题《重大滑坡、泥石流灾害综合风险评估技术》(2008BAK50B04); 中国科学院知识创新工程重要方向项目(KZCX2-YW-Q03); 国家自然基金项目(40502027) |
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| 摘 要： | 在现场调查和统计的基础上,分析了青川县东河口地震型崩塌体200余块块石沿转折型沟谷的分布特征和各不同体积组块石的分布特征.提出块石拦截率概念,并据此从数量和体积2个角度定量分析了沟谷拐弯段对块石的拦截效果.分析认为:转折型沟谷在控制块石的运移方面具有积极作用;相比小体积块石,沟谷拐弯段对大体积块石具有更好的拦截效果;从...
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| 关 键 词： | 转折型沟谷 拐弯 地震型崩塌体 块石拦截 |
| 收稿时间： | 2010-10-21 |
INTERCEPTION EFFECT OF STREAM VALLEY BENDS TO ROCK FALL BLOCKS IN WENCHUAN EARTHQUAKE |
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| WANG Xueliang ZHANG Luqing ZHOU Jian.INTERCEPTION EFFECT OF STREAM VALLEY BENDS TO ROCK FALL BLOCKS IN WENCHUAN EARTHQUAKE[J].Journal of Engineering Geology,2011,19(3):381-387. |
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| Authors: | WANG Xueliang ZHANG Luqing ZHOU Jian |
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| Institution: | 1.Key Laboratory of Engineering Geomechanics,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 1000292.Graduate University of the Chinese Academy of Sciences,Beijing 100049 |
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| Abstract: | On the basis of the investigation and the statistics on site,this paper studies the distribution characters of the whole and different volume groups' rockfall of more than 200 blocks along the bended valley at Donghekou in Qinchuan town.The rockfalls happened during the 2008 Wenchuan Earthquake.The concept of rock blocks interception rate are given on the basis of statistical information.Then,the interception effect of the turning point and the rock blocks' distribution in the valley are analysed quantitati... |
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| Keywords: | bended valley Turning point Rockfall Earthquake Interception of falling blocks |
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