Thanh Trung

Social security is one of the important guidelines and policies of our Party and State that has been thoroughly grasped and guaranteed to be implemented during the country's development periods. In recent years, despite facing many difficulties and challenges, social security work in Vietnam has continued to achieve many positive results, policies have continuously improved, the material and spiritual life of people has improved. People are cared for better and better with the goal of "leaving no one behind".

The goal of this thesis is to develop an appropriate and adaptable simulation module for microtunnelling construction operations. It helps to analyze the processes and to identify the factors, which influence the operation productivity of the construction process essentially. In view of these objectives, a System Modeling Language (SysML) model describing the microtunnelling process is developed in the first step. Subsequently, the simulation software AnyLogic is applied to create the MiSAS (Microtunnelling: Statistics, Analysis and Simulation) simulation module based on the SysML formalization. Three actual microtunnelling projects at the city of Recklinghausen, Germany, are used for the validation, verification of the developed MiSAS module. Thereafter, the MiSAS module allows to evaluate the impact of the different ground conditions, disturbances and predict the resulting tunnel productivity.