中文摘要：

为研究嵌岩锚杆抗拔过程中锚-岩界面承载特性,根据岩质地基中嵌岩锚杆的受力破坏机理,采用二段线性函数模拟锚杆-围岩界面的力学行为;基于荷载传递理论,推导了岩质地基中嵌岩锚杆的轴力、侧阻力及锚头位移的计算公式,分析了综合影响系数η对嵌岩锚杆抗拔承载特性的影响,给出了相应的确定方法;结合工程算例采用提出的计算方法对锚杆的轴力、侧阻力及P-S曲线进行了分析。分析结果表明：当上拔荷载较小时,嵌岩锚杆侧阻力呈双曲函数分布;当上拔荷载较大时出现塑性区,塑性区侧阻力均匀分布,弹性区呈双曲函数分布。

英文摘要：

In order to study the bearing characteristics of the interface between the anchor and rock in the anti-pullout process of a rock-socketed anchor,according to the failure mechanisms of the rock-socketed anchor in the rock foundation,the mechanical behavior of the interface between the anchor and surrounding rock was simulated using a two-segment linear function. The formulas of axial force,side resistance,and top vertical displacement of the rock-socketed anchor were derived based on the load transfer theory. The influence of the comprehensive influence coefficient η on the anti-pullout bearing characteristics of the rock-socketed anchor was analyzed,and the method for determining the value of η was provided. The axial force,side resistance,and P-S curve for an engineering example were analyzed using the presented calculation method. Results show that,when the uplift load is small,the side resistance of the rock-socketed anchor shows a hyperbolic distribution. When the uplift load is larger,the plastic zone appeares. The side resistance shows a uniform distribution in the plastic zone and a hyperbolic distribution in the elastic zone.