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首页> 外文期刊>Natural Hazards >Probabilistic and sensitivity analyses of effective geotechnical parameters on rock slope stability: a case study of an urban area in northeast Iran
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Probabilistic and sensitivity analyses of effective geotechnical parameters on rock slope stability: a case study of an urban area in northeast Iran

机译：有效岩土参数对边坡稳定性的概率和敏感性分析：以伊朗东北部城市为例

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摘要

Despite the development of cities, risk assessment of rock slope stability in urban areas seems not to be growing at the same time. Mashhad is a developed city in northeast of Iran with a population of over 2.4 million. Given the closeness of the southern part of Mashhad to the Binaloud mountain ridge, the stability of the residential complexes that are being constructed in this area is a critical issue. Based on the fundamental roles of discontinuity properties and geo-mechanical parameters of rock mass, in this study we evaluated the most influential parameters of the rock slope stability and the failure probability of the slope near the Negin residential complex built on this ridge. According to the deterministic and probabilistic analyses, the north trench that was excavated for this residential complex could potentially cause plane failure. Moreover, the relationship between effective parameters on instability and their impact on safety factors were determined by sensitivity analysis. Therefore, slope dip, pore water pressure, and joint set dip were highly influential on the safety factor. There was also a nonlinear relationship between different parameters and safety in the studied area. This study presents an approach for risk assessment of rock slope stability in urban areas.
机译：尽管城市发展，但城市地区岩质边坡稳定性的风险评估似乎并没有同时增长。马什哈德（Mashhad）是伊朗东北部的一个发达城市，人口超过240万。鉴于马什哈德（Mashhad）南部与比那劳德（Binaloud）山脊的距离很近，在该地区建造的住宅区的稳定性是一个关键问题。基于岩体的不连续性和岩土力学参数的基本作用，在这项研究中，我们评估了最有影响力的岩质边坡稳定性参数和在此山脊上建造的Negin住宅区附近的边坡的破坏概率。根据确定性和概率分析，为该住宅区开挖的北沟可能会导致飞机失灵。此外，通过敏感性分析确定了有效参数对不稳定性及其对安全系数的影响之间的关系。因此，边坡倾角，孔隙水压力和节理倾角对安全系数有很大的影响。在研究区域中，不同参数与安全性之间也存在非线性关系。这项研究提出了一种用于城市岩质边坡稳定性风险评估的方法。

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