نتایج جستجو برای: geomechanical characteristics
تعداد نتایج: 661101 فیلتر نتایج به سال:
In advance longwall mining, the safety of mine network, production rate, and consequently, economic conditions of a mine are dependent on the stability conditions of gate roadways. The gate roadway stability is a function of two important factors: 1) characteristics of the excavation damaged zone (EDZ) above the gate roadway and 2) loading effect due to the caving zone (CZ) above the longwall w...
The load entering from the ground surrounding on the tunnel’s lining is one of the effective parameters in the designation of a tunnel. The amount of this parameter, which is called Rock load in a rocky environment, depends on several factors such as the overburden thickness, geological and geomechanical conditions and the depth of tunnel. In the present study, the amount of rock load for the L...
The article analyzes the issue of reliable estimate unloading extent and variation order coal-rock massif geomechanical characteristics as a result hydraulic fracturing undertaken from mine workings. For this purpose it is proposed to use value studied rock mass. In case possibility comparison with geological actual data doesn’t exist, option using mass classification based on estimated geophys...
in order to examine the ecological conditions and characteristics of fraxinus excelsior l. in the northern forests of iran 6 main areas as well as some miscellaneous ones , have been selected in the region respectively in : lomir2, shafaroud , park - e-noor , ahlam , alandan and noor.
Large-scale subsurface fluid injection has the potential to trigger earthquakes. In addition to seismic hazard, reactivation of faults and fractures during CO2 injection has the potential to compromise storage integrity. These risks need to be taken into account when selecting potential carbon capture and storage (CCS) sites. Deployment of seismometers at current large-scale CCS projects (m...
Shared Research Facilities "Petrophysics, Geomechanics and Paleomagnetism", created based on actively developing divisions of the Schmidt Institute Physics Earth RAS, has advanced research equipment unique methods, which determines possibility solving a wide range applied fundamental problems in sciences. The main activities Paleomagnetism" are field geomechanical modelling petrophysics, paleom...
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