Únosnost mikropilot s výztuží MAI SDA R38 a R51

Abstract

This thesis deals about the problematic of micropile settlement. The first part is pursuing to the theoretical part. There is written in detail about the information about micropiles, further is written about micropiles with drilled reinforcement, and the end is applied to general procedure for solving the calculation of the load capacity of micropiles. The practical part deals about calculation of micropile settlement by the finite element method. Therefor a real micropile was used, on which a static load test was executed. Due to its results, it was able to perform a successful model calibration. This calibration is based on changes of deformation-strength properties of used materials, to approximate the calculated results as much as it is possible to the real measured results. The second task was to adjust this model from the original micropile with R38N reinforcement to micropile with R51L and R51N reinforcement, but with identical base surroundings. The minimal bearable length was examined with the maximal bearable load of the definite reinforcement. This was compared to the minimal bearable length calculated by the first limit state. The results of first and second limit states corresponded with a deviation up to 13 %.