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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Risk assessment and stability analysis of a recent landslide at Vishnuprayag on the Rishikesh-Badrinath highway, Uttarakhand, India
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Risk assessment and stability analysis of a recent landslide at Vishnuprayag on the Rishikesh-Badrinath highway, Uttarakhand, India

机译：印度乌塔塔克手高速公路Vishnuprayag近期滑坡风险评估及稳定性分析

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摘要

A massive landslide was triggered on 19 May 2017 at Vishnuprayag near Joshimath, Uttarakhand, India. The landslide blocked the Rishikesh-Badrinath highway and halted traffic for about 24 h till the debris was removed and the road reopened. The Hathi Pahar hill in Vishnuprayag has been a landslide-prone zone because of the presence of loose boulders and large rock blocks on very steep slopes. The site was visited immediately after the landslide and a rapid field assessment of slope stability was carried out. The stability analysis was performed with limited geological and geotechnical data collected from field and laboratory. Based on the two-dimensional finite element analysis, it was inferred that the slope is marginally stable under static load, but fails under seismic loading. The slope could fail in future due to triggering factors such as heavy rainfall, earthquake and anthropogenic activities. This communication presents field observations and the subsequent stability analysis along with possible suggestive control measures.
机译：2017年5月19日在印度富特拉克手附近的Vishnuprayag触发了一个大规模的滑坡。滑坡阻止了瑞希克诗 - Badrinath公路，并停止了24小时的流量，直到除去碎片，道路重新开放。 Vishnuprayag的Hathi Pahar Hill是一个俯卧撑乐队，因为在非常陡峭的斜坡上存在松散的巨石和大型岩石块。在滑坡后立即访问该网站，并进行了对边坡稳定性的快速现场评估。稳定性分析是由场和实验室收集的有限地质和岩土科数据进行。基于二维有限元分析，推断斜坡在静载下略微稳定，但在地震载荷下失效。由于触发降雨，地震和人为活动等触发因素，坡度将来可能会失败。该通信提出了现场观察和随后的稳定性分析以及可能的暗示控制措施。

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