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为了提高对门架式双排桩结构特性的认识,首先对门架式双排桩的结构计算模型进行探讨,基于传统的普通抗滑桩的计算思路,得出门架式双排桩的差分计算模型。然后进行门架式双排桩结构模型试验,对门架式双排桩的结构受力特性进行分析。从理论计算和模型试验两个方面来对门架式桩结构特性进行研究,最后得出:有别于传统的双排桩结构,门架式双排桩由于桩顶连系梁的存在,使其超静定结构的优势得到充分发挥,有效降低了桩身最大应力,避免了应力过于集中,比传统的双排桩可以承载更大的滑坡推力,是一种非常有前景的支挡结构。
In order to improve the understanding of the structural characteristics of double-row piles, this paper first discusses the structural calculation model of double-row piles and calculates the differential calculation model of double-row piles based on the traditional calculation of ordinary anti-slide piles. Then, the model test of double-row pile structure was carried out to analyze the stress characteristics of double-row pile structure. From the theoretical calculation and model test two aspects of the gantry pile structure characteristics of the study concluded: different from the traditional double-row piles, gantry double-row piles due to the existence of the top of the tie beam, so that The advantages of the statically indeterminate structure are fully exerted, the maximum stress of the pile body is effectively reduced, the stress concentration is avoided, and the larger displacement of landslide thrust can be achieved than the traditional double-row piles, which is a very promising retaining structure.