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微型抗滑桩作为一种新型支挡结构,在边坡治理中具有独特的优势。在已有工作的基础上,对微型抗滑桩现有设计计算方法进行了分析和总结,将其分为3类,即基于普通抗滑桩设计理论的方法、等效法和数值计算方法,在此基础上分别从微型抗滑桩的受力特征、桩间距的确定和现有设计计算方法的适用性3个方面对微型抗滑桩的设计计算理论进行了初步探讨,认为合理的桩间距应尽可能减小微型桩群由于群桩效应而产生的不利影响,但同时也应兼顾微型桩与岩土体整体协调作用的发挥程度,以求得最佳的承载能力;而如何对桩土复合体进行合理的等效则是利用等效法计算微型桩群的一个有待深入探讨的关键问题。
Micro-anti-slide pile as a new type of support structure has unique advantages in slope management. Based on the existing work, the existing design and calculation methods for miniature anti-slide piles are analyzed and summarized, which are divided into three categories, that is, the method based on the common anti-slide pile design theory, the equivalent method and the numerical calculation method. On this basis, the design and calculation theory of micro-anti-slide piles are discussed from three aspects of the force characteristics of micro-anti-slide piles, the determination of pile spacing and the applicability of the existing design calculation methods. It is concluded that a reasonable pile spacing Minimize the negative impact of micro-pile group due to pile group effect, but also take into account the overall coordination of micro pile and rock mass in order to obtain the best carrying capacity; and how to pile-soil composite The reasonable equivalent of the body is a key issue that needs to be further explored by using the equivalent method to calculate the micro pile group.