| 摘要 |
FIELD: construction.SUBSTANCE: continuously rising impressing load at a model pile is applied with permanent speed, and its value is accepted depending on diameter of the model pile, moisture, limits of plasticity and coefficient of soil porosity under a lower end of an experimental pile, based on the formula. Registration of the impressing load and settling of the model pile is carried out continuously with error of 100-200 N for the impressing load and 0.005-0.010 mm for pile setting. According to the data of registration of the impressing load and setting of the model pile, a curve is built for dependence of model pile setting speed on the impressing load, which is broken into three sections - 1st section with the permanent linear speed of model pile setting, 2nd section with non-linearly increasing speed of model pile setting that is 5-10 times higher than on the 1st section, and the 3rd section with the speed of model pipe setting that is 5-10 times higher than on the 2nd section, and the bearing capacity of the natural pile in the structure foundation is calculated using the data of the curve of dependence of model pile setting speed on the impressing load according to the formula.EFFECT: higher validity and accuracy of determination of bearing capacity of a natural pile in a structure foundation and reduced labour costs.1 tbl, 2 dwg |
