Sättningar i torvmaterialet : En fallstudie om användning av förstärkningsmetoden "förbelastning i form av överlast" på jordmaterial av torv
Sammanfattning: Purpose: The aim of this degree project is to control the set-up for a longer period by means of the workplace at the use of the total station for then comparing calculated outcomes with real outcomes. Method: A combination of both quantitative and qualitative studies have been used in this degree project, consisting of literature studies and a case study including interviews, document analyzes, site visits and measurements. The case study is based on an ongoing project in the municipality of Nassjo, where a skate park is constructed and whose soil consists of peat. Preload in the form of overload has been applied. Findings: The result indicates the occurrence of a difference between calculated outcome and actual outcome regarding set rate and time course when using preload in the form of overload. The deviation is about 20 cm. Preload in the form of overload is a good method for peat land, but it is unlikely to be remarkably improved by vertical drainage. Implications: In view of the measurements produced by the authors, this shows that the method of loading in the form of overload on peat field works, however, gives the calculation model which has been used to be uncertain. The result described in more detail regarding vertical drainage on peat fields will not accelerate the process because the peat is already well drained. This means that it will cost extra without benefiting from the method. Limitations: The work has limited to two reinforcement methods on peat fields. A case study has been limited to only one area. There was preload in the form of overload, whose soil material consists of peat. Keywords: Peat, Permeability, Preloading in the form of overload, settlements, total station, vertical drainage, water quota.
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