The Study of the Supporting Performance of the Anti-Slide Pile Under the Complex Temperature Field

The shells or other high temperature fire role may attack the anti-slide pile in the process of using of the anti-slide pile, and high temperature will seriously influent the supporting performance of the anti-slide pile. Summarizing the relationship between the temperature and the tensile strength and elastic modulus of the anchor cable and the relationship between the temperature and the elastic modulus of pile by consulting specification and related literature, and then, Combined with FLAC3D to establish three-dimensional model of a slope, and finished the numerical simulation of slope which may Suffer from the shells or high temperature heat source to explore the relationship between the axial force and temperature and the relationship between roof displacement of the slope under the same degree of safety and under different degree of safety of slope to find the influence rule between the temperature and the supporting performance of the anti-slide pile. The results showed that for the slope at the same degree of safety, when the temperature is at 200-400°, the displacement of pile head and the axial force of anchor cable are not affected by temperature, when the temperature is greater than 400°, the displacement of pile head and the axial force of anchor cable are sensitive to temperature, they both increase quickly with the increase of temperature. When the degree of slope changes safety within a certain range, the relationship between the supporting performance of the anti-slide pile and temperature is stable and regular.