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首页> 外文会议>Proceedings of Sessions of Geo-Denver 2000, Aug 5-8, 2000, Denver, Colorado >Stability Assessment of Ten Large Landfill Failures
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Stability Assessment of Ten Large Landfill Failures

机译：十个大型垃圾填埋场破坏的稳定性评估

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This paper presents and analyzes ten large solid waste landfill. Five are unlined or soil lined, and five are lined with one or more geosynthetic materials. The case histories are analyzed by a 3-D computer code adjusting variables (mainly interface shear strength) to arrive at a FS = 1.0. A triggering mechanism, unique to each site, is then applied resulting in a FS < 1.0. The same variables and triggering mechanisms are then used in a 2-D computer code with FS-values further decreasing by different amounts. The ratio of 3-D to 2-D factors-of-safety is called a wedge factor. Conclusions reached are as follows: (ⅰ) Interface shear strengths are the overriding considerations in varying FS-values. Accurate determination cannot be overemphasized. (ⅱ) The triggering mechanisms were all liquid related, i.e., leachate buildup within the waste mass, wet clay beneath the geomembrane, or excessively wet foundation soil. (ⅲ) The average wedge factor of all case histories without, then with, the triggering mechanisms is 1.24.
机译：本文介绍并分析了十个大型固体垃圾填埋场。五种没有衬里或土壤有衬里，而五种则衬有一种或多种土工合成材料。通过3D计算机代码调整变量（主要是界面剪切强度）来分析案例历史，得出FS = 1.0。然后应用每个站点唯一的触发机制，导致FS <1.0。然后，将相同的变量和触发机制用于FS值进一步降低不同量的二维计算机代码中。 3-D与2D安全系数之比称为楔形系数。得出的结论如下：（ⅰ）界面抗剪强度是变化的FS值中的首要考虑因素。准确的确定不能过分强调。 （ⅱ）触发机制都是与液体有关的，即废物堆中的渗滤液积累，土工膜下的湿粘土或基础土壤过湿。 （ⅲ）在没有触发机制的情况下，所有案例历史的平均楔形因子为1.24。

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