Στη συγκεκριμένη διπλωματική εργασία σκοπός μας ήταν η ανάλυση της μεθόδου των μικροσηράγγων γενικά αλλά κυρίως η εφαρμογή τους στο έργο της τεχνικής εταιρίας ΕΔΡΑΣΗ στις τρεις γέφυρες.Μελετήσαμε επίσης την αντίσταση κατά την προχώρηση δηλαδή τον συντελεστή τριβής.
In this dessartation, our aim is to analyse the method of microtunnelling and especially their application to project engineering company <<EDRASSI>> on three bridges. The geotechnical work was conducted under construction quad rail corridor for the part between three bridges and Acharnon. The whole site extends over a length of about two kilometers in a.Anargyroi. The main objective of the project was, as the area was busy and is characterized by heavy traffic during construction, to avoid stopping traffic. For this and for many other reasons you mention, the chosen method was microtunnelling. We will develop applications and how the microtunnelling was in this project, but in general, leading to why the method used. Then you quote some geotechnical information crucial geotechnological study. Some chapters will refer to structucal design of pipelines and measure the resistance to progression. We will devote the final chapter in order to reach some conclusions