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针对实际工程中岩体边坡加固技术的不足,从边坡稳定内因出发,基于提高边坡岩体自身抗剪强度的思想,提出了压力注浆加固的方法.从力学机理出发,研究了注浆胶结体对加锚弱面力学性能的影响,在力学基础上为注浆工艺提供了论证.通过ANSYS建立数值模型,利用本文自编ANSYS-FLAC3D转换程序导入FLAC3D进行数值分析,在分别改变弱面抗剪强度参数c、φ值的条件下,得到c、φ与安全系数K之间的关系.分析结果表明,通过注浆提高弱面的c、φ值,能够从本质上提高边坡的稳定性.研究结果为岩体边坡压力注浆加固方法提供了可靠依据.图9,表1,参10.
Aiming at the deficiency of reinforcement technology of rock slope in practical engineering, based on the internal cause of slope stability, based on the idea of improving the self-shear strength of slope rock mass, a method of pressure grouting reinforcement is put forward.Starting from the mechanics mechanism, The effect of the mortar on the mechanical properties of the anchoring weakened face was discussed, and the demonstration of the grouting technology was provided on the basis of mechanics.A numerical model was established by ANSYS, and the numerical analysis was carried out by using the self-designed ANSYS-FLAC3D conversion program to import FLAC3D. Surface shear strength parameters c and φ, the relationship between c and φ and the safety factor K is obtained.The results show that increasing the c and φ values of the weak planes by grouting can essentially increase the slope The results provide a reliable basis for the pressure grouting reinforcement of rock slope.Figure 9, Table 1, Reference 10.