Scholarlink

<p>Slope instability in blocky rockmasses poses a significant risk to hydraulic infrastructure, particularly during dam construction. This study employs an integrated approach combining kinematic and block theory analyses to assess slope stability at the Tanahu Storage Hydroelectric Project in central Nepal. The investigation focused on dolomitic rock slopes characterized by multiple discontinuity sets with varying orientations, dip angles, and shear strengths. Field mapping, laboratory testing, and geotechnical data informed the kinematic analysis using DIPS and block stability evaluation using block theory. The Maximum Safe Slope Angle (MSSA) across different cut slope directions was determined to range between 45° and 81°, with critical key blocks identified in regions of intersecting joint sets. The results were verified through finite element analysis of the hillslope. The results indicate that the combined approach enhances the accuracy of failure mode identification and supports the development of optimized slope design parameters. These findings are critical for ensuring construction safety and long-term slope stability in large-scale hydropower projects.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Slope stability assessment in blocky rockmass using integrated approach of kinematics and block theory analysis

  • 期刊论文

  • 发表日期：

    2026年7月21日

查看全文
  • Sanjeev Regmi,
  • Ranjan Kumar Dahal

摘要

Slope instability in blocky rockmasses poses a significant risk to hydraulic infrastructure, particularly during dam construction. This study employs an integrated approach combining kinematic and block theory analyses to assess slope stability at the Tanahu Storage Hydroelectric Project in central Nepal. The investigation focused on dolomitic rock slopes characterized by multiple discontinuity sets with varying orientations, dip angles, and shear strengths. Field mapping, laboratory testing, and geotechnical data informed the kinematic analysis using DIPS and block stability evaluation using block theory. The Maximum Safe Slope Angle (MSSA) across different cut slope directions was determined to range between 45° and 81°, with critical key blocks identified in regions of intersecting joint sets. The results were verified through finite element analysis of the hillslope. The results indicate that the combined approach enhances the accuracy of failure mode identification and supports the development of optimized slope design parameters. These findings are critical for ensuring construction safety and long-term slope stability in large-scale hydropower projects.