In this study, the uplift load-carrying behavior of inclined micropiles (MP) embedded in various soil-rock layer conditions was investigated. For this purpose, a series of model load tests and finite element analyses were performed. The focus was given on the effects of MP inclination angle (θ) and rock-embedded ratio (Z_r/L). For MPs in rock, the uplift load capacity (Q_u,θ) was highest when vertically installed and decreased with increasing θ. The Q_u,θ of MPs embedded in soil-rock mixed layers increased with Z_r/L and decreased with increasing θ. Marked increases in Q_u,θ were observed for Z_r/L larger than 0.6 for all θs. As MPs inclination increased, the load-carrying mechanism shifted from the frictional resistance towards the passive resistance. The MPs inclined configuration caused less mobilization of the frictional resistance within the rock-embedded zone while producing the passive resistance within the upper soil zone. This explained the reductions in Q_u,θ with increasing θ for MPs with the rock-embedded condition.

在这项研究中，研究了在各种土石层条件下埋置的倾斜微型桩（MP）的抬升承载行为。为此，进行了一系列的模型载荷测试和有限元分析。重点讨论了MP倾角（θ）和嵌岩比（Z _r / L）的影响。对于岩石中的MP，垂直安装时的上升载荷能力（Q _u，θ）最高，而随θ的增加而下降。埋在土石混合层中的MP的Q _u，θ随Z _r / L增大而增大，随θ增大而减小。Z _r观察到Q _u，θ明显增加对于所有θ，/ L均大于0.6。随着MPs倾斜度的增加，承载机制从摩擦阻力变为被动阻力。MPs的倾斜配置使嵌岩区中的摩擦阻力较少动员，而在上部土壤区中产生了被动阻力。这解释了在岩石嵌入条件下，MP随Q的增加而减小Q _u，θ的情况。