Modelování vlivu technické seizmicity na okolní horninové prostředí

Abstract

In this doctoral thesis was presented influence of seismic load to geological environment. Especially this thesis deals with technical seismicity, which was caused by construction machines. Influence of technical seismicity in geological environment was observed in terms of the peak oscillation velocity. This impact was simulated by the mathematical models based on finite element method. The first of two main parts of the doctoral thesis was focused on the study of properties of geological environment and parameters of construction machines, which affect the seismic response in geological environment. Influence of properties (for example type of construction machines or geological environment, frequency of vibration or strength and stress-strain properties of soil) to peak oscillation velocity were observed in sub-chapters. The selected results of models were compared with experimental measurement in-situ. The second of main parts of the doctoral thesis deals with the using of stochastic approach to modeling of technical seismicity in the geological environment. The 20 input parameters were generated by using LHS method for three variable parameters of geological environment (Edef, φef, cef). These both stochastic input parameters and deterministic input parameters were entered into 20 models. On the basis of the model results the basic statistical characteristics were evaluated. In the end the ranges of peak oscillation velocities were determined with a certain probability level and some practical recommendations for the optimization of the construction process were formulated.