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| 不同渗流条件下无限斜坡稳定性分析方法探讨 | |
| 引用本文： | 靳德武,牛富俊,陈志新,倪万魁.不同渗流条件下无限斜坡稳定性分析方法探讨[J].地质灾害与环境保护,2003,14(4):63-67. |
| 作者姓名： | 靳德武 牛富俊 陈志新 倪万魁 |
| 作者单位： | 1. 煤炭科学研究总院西安分院,西安,710054;长安大学地质工程与测绘工程学院,西安,710054 2. 中国科学院寒区旱区环境与工程研究所冻土工程国家重点实验室,兰州,730000 3. 长安大学地质工程与测绘工程学院,西安,710054 |
| 基金项目： | 国家自然科学基金资助项目(批准号:50008016) |
| 摘 要： | 顺层滑坡和冻土地区的浅层滑坡如融冻泥流和热融滑塌等，其斜坡深长比很小，一般属于无限斜坡类型，这类滑坡的形成往往与地下水的存在有关。本文应用有效应力原理推导了不同渗流条件下无限斜坡稳定性分析的计算模式，对各种不同表达形式的安全系数进行了讨论和对比，得出在流线平行于斜坡条件下。两类特殊条件(干土坡、饱水土坡)下的分析结果与相同情况下安全系数统一式结果相一致的结论；流线为相互平行的水平线、流线与坡向一致两种情况分别为孔晾压力和安全系数的两种特例。 |
| 关 键 词： | 渗流 无限斜坡 稳定性分析 有效应力原理 安全系数 |
| 文章编号： | 1006-4362(2003)04-0063-05 |
| 修稿时间： | 2003年6月23日 |
DISCUSSION ON METHOD OF STABILITY ANALYSIS OF INFINITE SLOPE FOR DIFFERENT SEEPAGE CONDITIONS |
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| JIN Dewu.DISCUSSION ON METHOD OF STABILITY ANALYSIS OF INFINITE SLOPE FOR DIFFERENT SEEPAGE CONDITIONS[J].Journal of Geological Hazards and Environment Preservation,2003,14(4):63-67. | |
| Authors: | JIN Dewu |
| Abstract: | Plane translational slope slide and shallow slide in permafrost region, such as, solifluction and thaw slumping, are common phenomenon with low depth-length ratio. They are called as infinite slope. This kind of slope is usually connected with groundwater. In this paper, stability analysis formula of infinite slope with seepage based on effective principle is derived. Different factors of safety are discussed and contrasted. It is concluded that factor of safety with streamline parallel to slope surface is coincide with that of two kinds of special conditions(dry and fully saturated soil slope). Two conditions are respectively special cases for pore pressure and factor of safety: streamline with horizon direction and with identical direction streamline to slope surface. |
| Keywords: | seepage pore pressure infinite slope slope stability analysis effective stress principle factor of safety |
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