..., crack opening and fluid lag, fracture paths with and without offsets on the interface. Special attention is devoted to the problem of fluid flow associated with different opening profiles and fluid loss from the main fracture into secondary interface fractures during fracture crossing. fracture...

...1 INTRODUCTION Prediction of fluid flow through rock masses is sig- nificant in mining and civil projects, oil and under- ground water extraction, and when considering cer- tain geothermal and environmental issues. The inflow into an excavation could affect the stability of the excavation and from...

... relevance, the pres- ence of an additional phase, either gaseous, liquid or both, often controls the behaviour of multi- fracturing rock systems. Examples of such interac- tion include (i) Fracture induced in rock masses by the presence of fluid flow and (ii) Generation of gas pressure fields due...