Construction of well ZK-1 for Podravka d.d. – Kalnik, Varaždin : master’s thesis

Tema ovog rada je izvedba zdenca ZK-1, te interpretacija pokusnog crpljenja za Podravkinu tvornicu Kalnik u Varaždinu, koji zahvaća podzemne vode varaždinskog vodonosnika. U prvom dijelu rada iznesene su teorijske osnove potrebne za shvaćanje izvješća i izračuna, te interpretaciju pokusnog crpljenja. Slijede tehnički podaci o samom zahvatu podzemne vode sa zadanim potrebama projekta. Nakon toga je napravljen izračun lokalnih parametara vodonosnika pomoću poznate Cooper–Jacobove semi-logaritamske nestacionarne metode, te izračun parametara zdenca ZK-1, prema Cooperu, uz grafičku analizu ekvivalentnog specifičnog sniženja i ekvivalentne izdašnosti. Zatim je određen efektivni polumjer zdenca empirijskom formulom i u konačnici maksimalna izdašnost, na temelju koje je potvrđeno da zdenac može zadovoljiti potrebe projekta.Abstract: The topic of this thesis is the construction of the well ZK-1 and interpretation of test pumping, for Podravka’s factory Kalnik in Varaždin, which is located in the region of aquifer of Varaždin. The first part of the thesis provides theoretical background, which is required for understanding of the report, various calculations and the interpretation of test pumping. The following chapters contain technical data about the well construction. Next, local aquifer parameters were determined by Cooper-Jacob’s semi-logarithmic method. Well parameters of ZK-1 were determined by Cooper’s method with graphical analysis of equivalent drawdown time and equivalent yield. Finally, effective well radius and maximum yield were calculated, which confirmed that well was operating properly and would satisfy the needs of the project