CAJ | 학술논문

在岩质边坡滑动-倾倒组合破坏地质力学模型的基础上，采用改进的传递系数法，提出了岩质边坡滑动-倾倒组合破坏的解析分析方法，并对初始下滑推力及岩块底部的凝聚力进行敏感性分析。与传递系数法相似，将边坡体几何力学参数及潜在倾倒岩块编号作为变量，使得每个倾倒岩块的稳定性分析具有统一的表达式，并易于采用Microsoft excel进行程序化分析。分析结果表明：岩块底面的凝聚力对下部潜在倾倒区域的破坏模式影响较大，随着岩块底面凝聚力的增加，潜在倾倒区域发生倾倒破坏的块体呈逐渐增加的趋势，而发生滑动破坏的块体则明显较少，岩块底面倾角对坡体整体稳定性影响较大；随着岩块底面倾角的增大，整个坡体的稳定性逐渐降低。
재암질변파활동-경도조합파배지질역학모형적기출상，채용개진적전체계수법，제출료암질변파활동-경도조합파배적해석분석방법，병대초시하활추력급암괴저부적응취력진행민감성분석。여전체계수법상사，장변파체궤하역학삼수급잠재경도암괴편호작위변량，사득매개경도암괴적은정성분석구유통일적표체식，병역우채용Microsoft excel진행정서화분석。분석결과표명：암괴저면적응취력대하부잠재경도구역적파배모식영향교대，수착암괴저면응취력적증가，잠재경도구역발생경도파배적괴체정축점증가적추세，이발생활동파배적괴체칙명현교소，암괴저면경각대파체정체은정성영향교대；수착암괴저면경각적증대，정개파체적은정성축점강저。
An analytical solution is developed for sliding-toppling complex failure of rock slope, based on the corresponding failure mechanisms and the transfer coefficient method for entire block toppling failure. Moreover, the influences of initial sliding force from unstable set of rock slope and the cohesive force of block base are also analyzed. In order to have uniform expressions, the variables are expressed by the geomechanical parameters of the slope and the serial number of the block in this proposed method. Consequently, the stability of sliding-toppling complex failure of rock slope can be easily analyzed using a Microsoft Excellspreadsheet. This proposed method is applied to a practical rock slope. The results show that the cohesion of block base has significant influence on the failure model of susceptible toppling block, with increasing of the cohesion, the area of block toppling failure increases and the area of sliding failure obviously decreases. It is good agreement with previous research of block toppling failure that the relative angle of block base have significant influence on the entire stability of the complex rock slope; and the safety factor of the rock slope decreases with increasing of the relative angle of block base.