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应用板裂边坡介质力学计算模型,在边坡岩体屈曲性态和变形因素分析的基础上,研究了层状边坡在分叉点附近的邻域,探讨了结构分叉后平衡路径的演化途径;应用后屈曲能量准则建立的平衡稳定模态幅值方程,充分考虑屈曲岩层自重的法向分力对边坡稳定性的影响,得到一般情况下板裂介质岩体边坡溃屈极限长度方程;给出了任意倾斜角度边坡溃屈极限长度和模态幅值的极值,并以此作为岩体边坡稳定性的位移判剧.研究表明:分叉点附近的邻域与边坡坡角、岩体材料及结构几何特征有关;边坡从初始屈曲到后屈曲的变形过程中,只有当正则因子改变正负号时,系统才会从一个状态突跳至另一个状态;而由坡角确定的剖分因子始终控制着系统状态变量与载荷的对应关系,并有利于边坡岩体结构的稳定.图1,参12.
Based on the analysis of the buckling behavior and deformation factors of slope rock mass, the calculation model of the slab slope mechanics is used to study the neighborhood of the stratified slope near the bifurcation point. The equilibrium path after bifurcation Evolutionary path; the equilibrium stability mode amplitude equation established by the post-buckling energy criterion is used to fully consider the effect of the normal component force of buckling rock mass on the slope stability, and the ultimate collapse limit of the rock mass in the rock mass is obtained The length of the slope is given, and the limit value of the ultimate length and the modal amplitude of the slope at any inclination is given, and the result is used as the judgment of the displacement of the rock slope stability. The results show that the neighborhoods Slope angle, rock mass and structural geometry. When the slope changes from initial buckling to post-buckling, the system will jump from one state to another only when the regular factor changes sign. The subdivision factor determined by the slope angle always controls the corresponding relationship between the system state variables and the load and is in favor of the stability of the slope rock mass structure.