TY - JOUR N2 - This paper presents a complex study of anhydrite interbeds influence on the cavern stability in the Mechelinki salt deposit. The impact of interbeds on the cavern shape and the stress concentrations were also considered. The stability analysis was based on the 3D numerical modelling. Numerical simulations were performed with use of the Finite Difference Method (FDM) and the FLAC3D v. 6.00 software. The numerical model in a cuboidal shape and the following dimensions: length 1400, width 1400, height 1400 m, comprised the part of the Mechelinki salt deposit. Three (K-6, K-8, K-9) caverns were projected inside this model. The mesh of the numerical model contained about 15 million tetrahedral elements. The occurrence of anhydrite interbeds within the rock salt beds had contributed to the reduction in a diameter and irregular shape of the analysed caverns. The results of the 3D numerical modelling had indicated that the contact area between the rock salt beds and the anhydrite interbeds is likely to the occurrence of displacements. Irregularities in a shape of the analysed caverns are prone to the stress concentration. However, the stability of the analysed caverns are not expected to be affected in the assumed operation conditions and time period (9.5 years). L1 - http://journals.pan.pl/Content/109034/PDF/Archiwum-63-4-15-Cyran.pdf L2 - http://journals.pan.pl/Content/109034 PY - 2018 IS - No 4 EP - 1025 DO - 10.24425/ams.2018.124990 KW - storage caverns KW - stability analysis KW - anhydrite interbeds KW - 3D numerical modelling A1 - Cała, Marek A1 - Cyran, Katarzyna A1 - Kowalski, Michał A1 - Wilkosz, Paweł PB - Committee of Mining PAS VL - vol. 63 DA - 2018.12.17 T1 - Influence of the Anhydrite Interbeds on a Stability of the Storage Caverns in the Mechelinki Salt Deposit (Northern Poland) SP - 1007 UR - http://journals.pan.pl/dlibra/publication/edition/109034 T2 - Archives of Mining Sciences ER -