摘要
考虑桩岩相互作用,采用平面弹塑性有限元方法对嵌岩抗滑桩进行内力分析。同时采用传统K值法,桩端支承条件分别按固定、铰支和自由考虑,计算出3种不同支承条件下的桩身内力,并分别与有限元法的内力计算结果进行比较。分析结果表明:传统K值法采用桩端固定支承条件得到的桩身内力更接近有限元分析结果,故在嵌岩抗滑桩工程设计中,桩端支承条件应按固定端考虑。
In consideration of the interaction between pile and rock, the internal forces of a whole pile were analyzed by using plane elastic-plastic finite element method. Using traditional ＂K＂ method, the inner forces of a pile was calculated considering pile bottom bearing conditions as fixation, hinge, and freedom respectively, and then comparison was made with the finite element method. The comparison results show that the internal force result of traditional ＂K＂ method is close to the result of FEA. Therefore, pile bottom hearing condition should be fixation in the design of rock-socketed pile.
出处
《重庆交通大学学报（自然科学版）》
CAS
北大核心
2011年第A01期526-529,共4页
Journal of Chongqing Jiaotong University(Natural Science)
关键词
嵌岩抗滑桩
支承条件
有限元
rock-socketed anti-slide pile
bearing conditions
finite element method
