STATISTICALLY EQUIVALENT PERIODIC UNIT CELL FOR JOINTED ROCK MASSES
Abstract eng: This contribution deals with problem of solids weakened by cracks or joints. The rock containing crack is the model example of such a problem. Determination of properties is based upon the multi-scale homogenization. Owing to generally large dimensions of the analyzed problem (large underground caverns, deep seated tunnels, cracks in homogeneous mass, etc.) it is possible to treat joints, having sizes even of the order of meters, from the micromechanics point of view. The statistic description of spatial distribution of cracks is introduced. The common descriptors as e.g. crack density are compared with more sophisticated (containing more information) ones. The generation of the unit cells is based on the orientation and length of cracks.
Contributors:
Publisher:
Institute of Thermomechanics AS CR, v.v.i., Prague
Conference Title:
Conference Title:
Engineering Mechanics 2007
Conference Venue:
Svratka (CZ)
Conference Dates:
2007-05-14 / 2007-05-17
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2014-10-24, last modified 2014-11-18