Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Roohollah Narimani Dehnavi"'
Publikováno v:
BHM Berg- und Hüttenmännische Monatshefte. 166:301-308
The application of appropriate excavation equipment in difficult grounds is of crucial importance and consequently improves the performance of hard rock Tunnel Boring Machines (TBMs). The cutterhead is one of the main components of TBMs which is dire
Publikováno v:
BHM Berg- und Hüttenmännische Monatshefte. 166:64-69
Several methods of excavation have previously been studied to choose the most suitable approach to be applied in the Robominers project. Compared to drilling and blasting and partial-face cutting, the full-face cutting option is regarded as one of th
Autor:
Roohollah Narimani Dehnavi, Hamid Hashemolhosseini, Sadegh Kefayati, Masoud Torkan, Alireza Baghbanan
Publikováno v:
Earthquake Engineering and Engineering Vibration. 19:937-951
Uncertainty in input fracture geometric parameters during analysis of the stability of jointed rock slopes is inevitable and therefore the stochastic discrete fracture network (DFN) — distinct element method (DEM) is an efficient modeling tool. In
Autor:
Mohammadreza Akbariforouz, Qi Zhao, Kewei Chen, Alireza Baghbanan, Roohollah Narimani Dehnavi, Chunmiao Zheng
Publikováno v:
International Journal of Rock Mechanics and Mining Sciences. 163:105306
Publikováno v:
Rock Mechanics and Rock Engineering. 51:2911-2933
Squeezing rock condition has always been a major concern as one of the principle geological hazards when tunnelling in weak overstressed rock masses. This phenomenon often occurs in shear faulted zones, extremely jointed regions or metamorphic rocks
Publikováno v:
Bulletin of Engineering Geology and the Environment. 78:1045-1056
The long-term behavior of rock mass plays a vital role in the overall stability of underground structures. One possible long-term scenario is the degradation of the rock mass, especially in unstable clay-bearing rocks susceptible to water ingress. La