在桩基工程中,对桩进入薄持力层的最佳深度的确定,除了参考利用触探资料外,一直缺少严谨的计算方法。笔者通过对大量沉桩的实测及翻阅了有关文献资料,最后总结出了桩打入薄持力层的最佳深度的计算方法,在工程中发挥了一定的作用。 曼亚霍夫观点认为:桩进入持力层的深度为0～10D(D为桩径),桩尖土的单位阻力(强度)随深度的增加成线性增大,当入土深 In the pile foundation project, the determination of the optimum depth of the pile into the thin holding layer, in addition to reference to the use of the probe data, has been the lack of rigorous calculation methods. By measuring a large number of piles and reviewing the relevant literature, the author concluded the calculation method of the best depth of the pile into the thin layer and played a certain role in the project. According to Manjahov’s point of view, the depth of the pile into the bearing layer is 0 to 10D (D is the diameter of the pile), and the unit resistance (strength) of the pile tip soil increases linearly with the depth, when it enters the soil depth