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Like the foundation structure, their proper design and good execution plays an important role in the issue of durability of structures, it is also very important to properly design and implement the base layer of foundation structures. Usually, the base layer formed viable subsoil, which are located in the subsoil. Substructure then form the base layer interaction system. The subsoil is not always such a layer that would allow the establishment directly to solid ground. Also, the material (mass concrete, reinforced concrete) foundation structures determines whether it is possible to establish a building directly on the hard soil or underlayer is necessary. Often such a base layer performs building materials arising as waste during mining (eg. coal) or as waste generated in blast furnaces (slag). Often the buildings are well established on the embankments. Individual types of base layers (subsoil) will be evaluated by a team of experts. The team consisted of 43 experts. These experts conducted an evaluation of each type of subsoil individually using the universal matrix of risk analysis - Umra. Umra method is based on the principle of comparative logical and numerical analysis assessing the degree (severity) of a danger to the the project or its component parts. A team of experts assesses the identified part of the problem (the project), which is subject to a certain risk. Number of parts of the problem evaluated by a team of experts is arbitrary, with different (or identical) parts can be handled independently by different expert teams with different number of experts. |
