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目前,桩基计算中有K法、m法和C法之不同。一、K法存在的问题 1.K法的两个假定自相矛盾 K法假定地面至第一个水平位移零点间(t范围,见图1)地基系数按直线比例增加;但推导计算公式时,即又硬性假定t范围内土的抗力按对称的二次抛物线分布,二者是不一致的。 2.K法违背结构力学的基本原理桩基分析中,通常采用结构力学的变形法和力法,这两种方法都要求结构服从虎克
At present, there are K method, m method and C method in pile foundation calculation. First, the problem of K method 1. K law of the two assumptions contradictory K method assumes that the ground to the first horizontal displacement between zero (t range, see Figure 1) the foundation coefficient increases linearly; but the derivation of the formula , That is to say, the soil resistance in the range of t is assumed to be symmetrical quadratic parabola distribution, and the two are inconsistent. 2.K method contrary to the basic principles of structural mechanics Pile foundation analysis, usually using structural mechanics of the deformation method and force method, both of which require the structure to obey Hooke