Advancing Culture of Living with Landslides - Volume 5 Landslides in Different Environments

Advancing Culture of Living with Landslides - Volume 5 Landslides in Different Environments
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推进与山体滑坡共存的文化 - 第 5 卷 不同环境中的山体滑坡

DOI:
10.1007/978-3-319-53483-1_8
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发表时间:
2017
期刊:
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影响因子:
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通讯作者:
Sparkes B
Sparkes B
中科院分区:
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文献类型:
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作者:
Sparkes B

文献摘要

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苏格兰的休息和休息(A83)近年来经常发生山体滑坡活动,这条主干路被誉为英国最活跃的山体滑坡地点之一。在过去五年,每年平均有两次封路。本文比较了该网站与其他地点在苏格兰容易发生泥石流,并探讨了一系列地貌因素,使用高分辨率地面激光扫描数据。该网站被认为是相对活跃的,虽然平均年降雨量的标准化,使活动在该网站的Drumochter通行证等。宏观尺度的斜坡形态被发现强烈对应的空间分布最近的活动。通过限制流动和使夹带成为可能,碎石化被认为是整体泥石流危险中的一个重要因素。这在最近的两次事件中得到了证明,这两次事件在高海拔地区发生移动,并沿沿着长的跳动路径夹带大量材料。
The Rest and be Thankful (A83) in Scotland has been subject to frequent landslide activity in recent years and the trunk road has gained a reputation as one of the most active landslide sites in the UK. An average of two road closures per annum has been recorded over the last five years. This paper compares the site with other locations in Scotland that are prone to debris flows and explores a range of geomorphological factors using high resolution Terrestrial Laser Scanning data. The site is found to be relatively active, although normalization for mean annual rainfall makes activity at the site comparable to the likes of the Drumochter Pass. Macro-scale slope morphology is found to correspond strongly with the spatial distribution of recent activity. Channelisation is considered to be a significant factor in the overall debris flow hazard by confining flow and enabling entrainment. This was demonstrated during two recent events that mobilized at high elevations and entrained significant volumes of material along long runout paths.