Open pits protection design – the Glamping camp at Fužine
The construction of a glamping camp is planned in the town of Fužine, along the southwestern shore of Lake Bajer. The camp will have 15 accommodation units, a central building, and a garage. In order to construct some of the listed facilities, the existing terrain needs to be excavated to a depth of approx. 15.0 m (for the garage), 8.0 m (for the central building) and 2.60 m (for the buried accommodation units) and temporary open pits need to be provided. In order to prepare the temporary open pit protection design, engineering-geological and geotechnical investigation and testing were carried out. The works included engineering-geological and geotechnical prospecting of the location, exploratory drilling with coring, determination of drill cores, standard penetration testing (SPT), geophysical testing, laboratory testing of samples and processing the data from earlier investigations. With regards to the spatial limitations and the geometric and geological characteristics of the terrain at the location of the planned structures (garage, central building, buried accommodation units), it was determined that the open pit for the central building (depth 8.0 m) and the open pit for the buried accommodation units (depth 2.60 m) can be excavated in a stable geometry within the cover (1V:1H, 1V:1.25H) without additional protection measures. The open pit for the garage (depth 15.0 m) had to be built within the bedrock and cover with additional protection.