| 松动岩体边坡稳定性研究 |
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| 引用本文： | 席先武,邵铁全,彭建兵,雷小青.松动岩体边坡稳定性研究[J].煤田地质与勘探,2005,33(2):49-52. |
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| 作者姓名： | 席先武 邵铁全 彭建兵 雷小青 |
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| 作者单位： | 长安大学地测学院,陕西,西安,710064;西安石油仪器总厂塞舍尔公司,陕西,西安,710054 |
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| 基金项目： | 国家自然科学基金资助项目 (编号 :4 0 0 2 0 0 7) |
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| 摘 要： | 黄河大柳树坝址两岸山体中广泛分布着断层、软弱岩层和松动架空的岩体,且该区地震强度高。本文采用数值模拟的方法,对松动岩体高边坡在天然条件下和地震动作用下的稳定性进行了分析研究。结果表明:在天然条件下,坡体基本稳定,但表层坡体存在岩体卸荷松动现象,沿断层有集中剪切现象;地震动作用下,因岩体强度软硬相间而进一步发生松动,导致边坡失稳。
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| 关 键 词： | 松动岩体 边坡稳定性 数值模拟 |
| 文章编号： | 1001-1986(2005)02-0049-03 |
| 收稿时间： | 2004-03-30 |
| 修稿时间： | 2004年3月30日 |
Relaxed Rock Mass Slope Stability Analysis |
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| XI Xian-wu,SHAO Tie-quan,PENG Jian-bing,LEI Xiao-qing.Relaxed Rock Mass Slope Stability Analysis[J].Coal Geology & Exploration,2005,33(2):49-52. |
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| Authors: | XI Xian-wu SHAO Tie-quan PENG Jian-bing LEI Xiao-qing |
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| Institution: | 1. College of Geological Engineering and Geomantic, Chang'an University, Xi'an 710054, China;2. CHINA-FRANCE Joint Venture Ltd., Xi'an Petroleum Exploration Instrument Co. Xi'an 710054, China |
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| Abstract: | In both side of Daliushu dam site, so much rela xed rock mass can be fo und. The earthquake intensity is also very high in this area. In this paper, the relaxed rock mass slope stability,under both natural state and seismic state, has been analyzed by using numerical method. The result shows that under natural state, the slope is stable, but plenty of relief relaxed rock mass can be found in the surface of the slope, and stress focus on the fault. Under seismic state , the slope becomes unstable because the soft-hard lithologic group makes rock m ass become more relaxed then before. |
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| Keywords: | relaxed rock mass slope stability numerical si mulation |
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