STRESSES AND DEFORMABILITY OF ROCK MASS UPON OPEN PIT EXPLOITATION OF DIMENSION STONE
Journal Title: UNKNOWN - Year 2002, Vol 15, Issue 1
Abstract
The appearance of increased stresses and deformability of rock mass in the quarry of Zečevo (exploitation field of Selca – island of Brač) has caused a considerable decrease of usability of mineral raw materials, which put into question the survival of the pit. Therefore the research and measurements of the state of stresses and deformability of rock mass within the pit were carried out. Besides detailed laboratory testings (testings on small samples) performed were trial in-situ testings on large samples including the corresponding numerical analyses. The exploitation of dimension stone by sowing regularly shaped rectangular blocks has been proved to be appropriate for in-situ testing of bending strength. The paper presents the results of carried out laboratory testings, in-situ testings of bending strength including measuring of deformations after sowing cuts and numerical analyses by which the possible range of horizontal stresses was determined. Since for the case of massive rocks, for which the continuum concept is applied, there are no specifically defined methods of corrections, presented is a possible relation for correction of input size values based on the carried out laboratory and in-situ testings.
Authors and Affiliations
Siniša Dunda Petar Hrženjak Trpimir Kujundžić
Keywords
Related Articles
- EP ID EP29937
- DOI -
- Views 166
- Downloads 2
EVALUATION OF THE EFFECTIVENESS OF NATURAL STONE SURFACE TREATMENT FROM UKRAINE BY MECHANICAL AND CHEMICAL METHODS
Studies have been conducted with the aim of studying ways to improve the decorative properties of natural stone products. That will allow to make finished product run of natural stone with a homogeneous tint. For this pu...
FUNDAMENTAL MODELS OF STRUCTURAL STABILITY
In this paper, basic structural stability phenomena are described. After some general comments about stability in the field of civil engineering, four elementary sources of nonlinearity are mentioned: of equilibrium equa...
FRACTAL ANALYSIS OF FRACTURE SYSTEMS IN UPPER TRIASSIC DOLOMITES IN ŽUMBERAK MOUNTAIN, CROATIA
This paper presents results of fractal analysis of fracture systems in upper Triassic dolomites in Žumberak Mountain, Croatia. Mechanical rock characteristics together with structural and diagenetic processes results wit...
OTPORNOST DOLOMITNIH AGREGATA NA UDARNO HABAJUĆA OPTEREĆENJA I ZAMRZAVANJE
Dolomitni agregati iz kamenoloma Čelina, Podsusedsko Dolje i Jarče polje podvrgnuti su ispitivanju na udarno habajuća opterećenja i zamrzavanje. Pri tome su korištene nenormirane i normirane metode prema HRN-u i ASTM-u....
POZNAVANJE I ISTRAŽENOST HIDROGEOLOGIJE SAVSKOG SLIVA ISTOČNE SLAVONIJE
Prikazani su rezultati geoloških istraživanja Istočne Slavonije s naglaskom na hidrogeologiju kvartarnih vodonosnih slojeva. Daje se pregled hidrogeoloških i hidrokemijskih parametara i procjena rezervi podzemnih voda. N...