Geotechnical analysis and landslide susceptibility of overburden slope material in the Jammu and Kashmir, Western Himalaya

Geosystems and Geoenvironment Pub Date : 2025-05-27 DOI:10.1016/j.geogeo.2025.100413

Zahid Habib , Ajay Kumar , Riyaz Ahmad Mir , Irfan Maqbool Bhat , Waseem Qader , Rosan Kumar Mallik

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Abstract

This study examines the geotechnical properties of slope overburden material from Banihal to Ramban road section of National Highway-44 (NH44), Jammu and Kashmir, Western Himalaya. This region consists of Early Palaeozoic rock formations and is prone to mass wasting. Extensive development activities have exacerbated slope instability in this area. For geotechnical analysis, 40 undisturbed soil samples (USS) were collected and assessed for various parameters. Average values indicate moderate natural moisture content (11.6%), liquid limit (32%), plastic limit (24%), and plasticity index (7%), bulk density (1.6 g/cm³), dry density (1.4 g/cm³), cohesion (0.25 kg/cm²), internal friction angle (38°), void ratio (0.8), porosity (0.44%), and specific gravity (2.5%). The observed geotechnical results suggest moderate bearing capacity of the studied slopes, but increased landslide risk due to low cohesion in high moisture conditions. Therefore, these results may act as a policy document, aiding in land-use planning and identifying suitable sites for engineering structures.

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西喜马拉雅查谟和克什米尔地区覆盖层边坡材料的岩土分析和滑坡易感性

本研究考察了西喜马拉雅查谟和克什米尔44号国道（NH44） Banihal至Ramban路段边坡覆盖层材料的岩土力学特性。该地区由早古生代岩层组成，容易发生大规模的浪费。大规模的开发活动加剧了该地区的边坡不稳定。为了进行岩土分析，收集了40个未受干扰的土壤样本（USS），并对各种参数进行了评估。平均值表示适度的自然含水率（11.6%）、液体极限（32%）、塑性极限（24%）、塑性指数（7%）、容重（1.6 g/cm³）、干密度（1.4 g/cm³）、黏聚力（0.25 kg/cm²）、内摩擦角（38°）、空隙比（0.8）、孔隙率（0.44%）和比重（2.5%）。观察到的岩土工程结果表明，所研究的边坡具有中等的承载能力，但由于高水分条件下的低黏聚性，导致滑坡风险增加。因此，这些结果可以作为政策文件，帮助土地利用规划和确定工程结构的合适地点。

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来源期刊

Geosystems and Geoenvironment

CiteScore

4.70

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0.00%

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