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公路山地灾害的自组织临界性及工程应用探讨

Keywords: 道路工程,公路山地灾害,自组织临界性,沙堆试验,动力学行为,防治工程

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Abstract:

为了解公路山地灾害的共性,从整体上认识其规律性信息,根据自组织临界性理论,用两种沙堆模型作为公路山地灾害的概化模型,通过试验研究了其动力学行为,结果均呈现自组织临界性。并进一步结合滑坡、崩塌和泥石流山地灾害实例的相关观测信息进行了分析,皆表明了幂律和自组织临界性是许多公路山地灾害的共性。最后,在幂律分布特征下,说明了公路山地灾害暴发规模的极值分布的极限收敛于Ⅰ型渐进分布,并以云南蒋家沟泥石流为例,介绍了自组织临界性理论在公路山地灾害防治工程中的应用。

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