| الملخص | Fractures are considered as one of the two principle parameters affecting rock mass strength, besides the intact rock strength, in addition, it is combined with other parameters (field and laboratories) to classify the rock mass into five ranks.
Considerable quantum of data gained from the previous achieved projects in the company ,sparks an idea to perform a new classification for the rock mass depending upon number of fractures per meter by matching with other classification (Rock Quality Designation,Fissuration-Factor, Uniaxial compressive strength and porosity ).
Final results of this study indicates a new classification or ranking for rock mass which differs than that in the previous works ,dealing with the same subject .
Methodology of the study is characterized by using four parameters, tow of them are field measurements gained in field and other two are laboratory, which makes the gained results more reliable.
A new classification for a rock mass is introduced according to the number of fractures per meter in which class number one characterized by more than (8) fractures per meter while class number five characterized by less than (2) fractures per meter and the rest classes are in between. | |
