Eriotstarbelise allmaarajatise eelprojekt [Bakalaureusetöö. Juhendaja: T. Tomberg]
| Aasta | 2019 |
|---|---|
| Pealkiri tõlgitud | Preliminary project of special underground construction |
| Kirjastus | Tallinna Tehnikaülikooli geoloogia instituut |
| Kirjastuse koht | Tallinn |
| Tüüp | diplomitöö / bakalaureusetöö |
| Eesti autor | |
| Keel | eesti |
| Id | 32946 |
Abstrakt
In recent years, changes in political situation have caused the necessity to increase attention to possible emergency situations. There is a possibility that the delivery of essential resources, such as liquid fuel, has been interfered or at worst, has been made impossible. Therefore, in the event of emergency, there will be the possibility to have storage facilities of essential resources.
The aim of this bachelor’s thesis is to design a preliminary project of an underground fuel storage facility. The main purpose of the thesis is to determine an appropriate technology for developing the underground structure and to select a suitable type of reinforcement of the fuel tanks and their service rooms to guarantee a sufficient level of protection.
The preliminary project is based on the existing geological data of the region. In addition, an overview is given of the selected location, geological conditions and an additional equipment. Also, a superficial insight is provided of the cost of the construction and an estimated time of completion of the project.
Due to the specificities of the project, it was decided to use the method of drilling and blasting to excavate the fuel tanks. Because of the large cross-section of the repository, the method of multistage wall excavation was chosen. The support system of the fuel tanks was selected by taking the need to withstand possible risk factors into consideration. In addition, an overview was given of water drainage, ventilation and hydroisolation. Also, underground machines for the excavation were chosen.
The project is estimated to be completed within a year. The cost of the underground storage includes only the resources for excavation and labor costs, which is approximately 22,8 million euros. The excavated limestone can be used as an aggregate in asphalt concrete or as a raw material of cement or lime manufacturing. This can compensate the costs, to some extent. In the future, this preliminary project of the underground fuel storage could be a possible type solution.