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首页> 外文期刊>Australian Geomechanics >UNSATURATED FREE-STANDING MAINLINE RAILWAY EMBANKMENTS - PART 2: AN EXAMPLE OF HANDLING THE AWKWARD TRUTH
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UNSATURATED FREE-STANDING MAINLINE RAILWAY EMBANKMENTS - PART 2: AN EXAMPLE OF HANDLING THE AWKWARD TRUTH

机译：不饱和的独立式主线铁路堤防 - 第2部分：处理尴尬真理的一个例子

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摘要

The presence of negative pore pressures within cuttings and embankments, and the benefit of the consequent reduction of the likelihood of instability (also known as increased stability), have long been recognised by members of the profession. Negative pore pressures are usually a consequence of environmental influences upon clay soils in particular, and are frequently termed "soil suction".The recognition of suctions in the assessment of potential instability, by way of stability analyses, is less common, albeit that the tools are available to conduct such analyses, once the boundary conditions are understood.Measurement of suction values in the field assists the selection of suction values appropriate for such analyses.In the companion paper, the authors develop a philosophy and present a defensible model for analysis of free-standing embankments (Hull & Leventhal, 2019). Herein, a case history is presented that demonstrates one such analysis, being for Main Line Railway infrastructure. The results indicate the benefit accrued through recognition of suction in the estimation of potential instability of free-standing embankments.
机译：在扦插和堤坝内的负面孔隙压力以及随之而不稳定的可能性（也称为稳定性增加）的损害，长期以来一直被专业人士认可。负面孔隙压力通常是粘土土壤的环境影响的结果，并且经常被称为“土壤吸力”。通过稳定性分析，对潜在不稳定的评估中的吸取识别不太普遍，尽管工具较少可用于进行这种分析，一旦了解边界条件。现场吸入值的测量有助于选择适合这些分析的吸入值。在伴侣论文中，作者开发了一种哲学并呈现了可辩护的分析模型独立式堤防（船体＆Leventhal，2019）。这里，提出了一种案例历史，其证明了一个这样的分析，用于主线铁路基础设施。结果表明，通过识别自由堤的潜在不稳定性估计吸力来表示累计的益处。

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