Based on humidification constitutive model of transmission lines tower settlement calculation

摘要

In order to overcome the traditional calculation of loess collapsibility coefficient of water soaked by the lack, but also to address the suction of unsaturated soils is difficult to accurately measure and calculate difficult problems, this paper different saturation of conventional triaxial tests of loess to suction and according to the principle of equivalent deformation saturation equivalent basis, was established to introduce the equivalent suction shear strength of unsaturated formula and the introduction of saturation humidity of unsaturated linear constitutive model. Through self development programs, the use of two-dimensional finite element program to simulate the Guanlan and Yongdeng two-line transmission line Iron Tata rain moistening the deformation field, stress field, saturation field and so on, get a better result, humidification verified finite element constitutive model and the reasonableness and accuracy of procedures for the tower base provides a reasonable basis for treatment recommendations