Examples of protection construction pits near existing buildings

U okviru ovog završnog rada definirana je zaštita građevinske jame kako bi se ostvarili uvjeti za izvođenje konstrukcije objekta i spriječilo slijeganje okolnog tla na kojemu je temeljeni susjedni objekt. Opisane su i različite vrste zaštitnih konstrukcija koje se danas u svijetu najčešće koristite kao i kriterije za optimalan odabir tipa konstrukcije za određeni slučaj. U prvom djelu rada sažeto su obrađene metode zaštite građevinskih jama koje se danas u svijetu najčešće koriste, kao što su žmurje, mlazno injektirani stupnjaci, armirano betonska dijafragma. U drugom djelu rada na konkretnim primjerima poslovno-stambene zgrade u Varaždinu i studentskog doma u Varaždinu prikazana je izvedba zaštitne građevinske jame. Za izvedbu zaštite građevinske jame poslovno-stambene zgrade u Varaždinu i djela građevinske jame studentskog doma u Varaždinu korištena je tzv. metoda mikro pilota s jednim redom geotehničkih sidara. Zaštita građevinskih jama tzv. metodom mikro pilota s jednim redom geotehničkih sidara ostvaruje se izvedbom mikropilota čeličnim IPE profilima, na proračunom određenom razmaku, jednim redom geotehničkih sidara, te naglavnom AB gredom u kombinaciji sa širokim iskopom.In the frame of this final paper is defined the protection of the construction pit in order to achieve conditions for the structures execution of the building and prevent subsidence surrounding soil on which is the core of contiguous building. Also are described different types of protective structure which is currently in the world performing mostly and criteria for optimal selection type of construction for the certain cases. In the first part of this final paper are summarizes different methods of protection construction pits which is currently in the world performing mostly such as Sheet Piling, execution of a jet grout body, reinforced concrete diaphragm. In the second part of this final paper on concrete examples business - residential buildings in Varaždin and University campus in Varaždin is shown performance of protective construction pit. To performance the protection of the construction pit business - residential buildings in Varaždin and part of the construction pit University campus in Varaždin was used method of micro pilots with one row of geotechnical anchors. Protection of the construction pits with so-called method of micro pilots with one row of geotechnical anchors is realized with the performance of micropiles IPE steel profiles, on calculation certain distance with one row of geotechnical anchors and the main reinforced concrete beam in combination with a wide excavation