Updating the q system for nmt physicans dating patients
Joint studies show two main discontinuit including bedding and a main group of joint (J1) together with random joints (faults and fractures).Most of discontinuities have been filled mainly by calcite or calcite and clay.Based on conducted stability analysis, suitable supports were suggested for tunnel by RMR and Q methods.As a result, it can be concluded that all units have a good stability.It should be noted that many geological data cannot be directly applied in the design of underground constructions, so in recent years; many efforts have been made for geotechnical classification .In order to design dam and its appurtenant structures and assure about their stability, it is required to evaluate the engineering behavior of their surrounding rock masses.The aim of the present work is to assess whether a single fibre pull-out test can be related to the behaviour of multiple fibres in fibre reinforced concrete under bending condition.
During drilling, properties of discontinuity (such as dip/dip direction, roughness, Infilling, and spacing) in the rocks were studied.
Upper diversion tunnel of this dam with large cross section (13.7 m excavation diameter) and more than 1 km length is a huge construction.
The tunnel is placed in the Sarvak formation carbonate rocks of Bangestan group which passes through seven different geological zones with various specifications (SV1, SV2, SV3, SV4, SV5, SV6, and SV7).
Data deduced from testing and analysis shows good-to-excellent RQD classes with 75 to 90 values.
Based on RMR and Q methods, generally rock masses have good to very good quality with 61 to 95 values for RMR and 10 to 35 values for Q.