【摘要】 承重阻滑桩在山区高速公路建设中应用广泛,具有承重与阻滑双层作用,其受力性状远比抗滑桩和平地上受荷桩复杂。基于p—y曲线法的有限差分解,对影响承重阻滑桩内力与位移的桩顶竖向荷载、桩自由长度、桩径(刚度)、滑坡推力大小、滑坡推力分布形式5个因素进行计算。通过对计算结果的分析探讨,得到一系列的结论对承重阻滑桩的实际应用有一定的指导作用。更多还原

【Abstract】 Load-bearing and anti-slide piles have a popular application in the construction of freeway in mountainous area,it has double function: not only bearing the load from the superstructure but also counteracting landslide-thrust from the side of pile foundation,and the mechanical behavior of pile is much more complex than anti-slide pile or simplex inclined-loading pile.Adopting finite difference solution based on p-y curve method,five factors such as the vertical load on pile top、the free length of pile、the pile diameter(rigidity of pile)、the size of the landslide-thrust、the distribution of landslide-thrust which effecting the inner force and displacement of the load-bearing and anti-slide pile is calculated.Analyzing the calculation result,a series of conclusions is obtained,and it has certain guidance functions to engineering application for the load-bearing and anti-slide piles.更多还原