| 粘性土坡稳定性安全系数的时间相关性研究 |
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| 引用本文： | 肖光明,马石城. 粘性土坡稳定性安全系数的时间相关性研究[J]. 湘潭大学自然科学学报, 2000, 22(4): 112-115 |
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| 作者姓名： | 肖光明 马石城 |
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| 作者单位： | 1. 岳阳广播电视大学,岳阳,414000
2. 湘潭大学建工系,湘潭,411105 |
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| 摘 要： | 由于粘土的流变特性将导致土坡的稳定性随时间降低,将土稳定安全系数作为时间的函数,分析了安全系数随时间的变化,结果表明：（１）对于不同极限强度的土坡取同一安全系数是不安全的;（２）长期土坡和短期土坡这一概念是模糊的,不同的土皮其长期和短期的概念是不一样的;（３）土坡破坏时的临界滑面有可能与设计临界滑面不一致,最终的破坏将在设计临界滑面附近形成一滑动带。
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| 关 键 词： | 安全系数 时效特性 粘性土坡 稳定性 蠕变效应 |
| 文章编号： | 1000-5900(2000)04-0112-04 |
| 修稿时间： | 2000-05-05 |
On the time - dependent property of safety factor of cohesive soil slope stability |
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| XIAO Guangming,MA Shicheng. On the time - dependent property of safety factor of cohesive soil slope stability[J]. Natural Science Journal of Xiangtan University, 2000, 22(4): 112-115 |
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| Authors: | XIAO Guangming MA Shicheng |
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| Abstract: | The safety factor of slope stability is treated as a function of time, and the change of safety factor with the passage of time is analyzed. The results show that (1)the slopes with various limit strength of slope using the same safety factor is not safe, (2)the concept of long-term and short-term slope is fuzzy, for it has various meaning for various slopes, and (3)the critical surface of failure and the critical surface of design are not the same. |
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| Keywords: | slope stability safety factor time-effect properP |
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