Comments on “Estimating the Strength of Jointed Rock Masses” by Lianyang Zhang
نویسندگان
چکیده
منابع مشابه
Microplane damage model for jointed rock masses
The paper presents a new microplane constitutive model for the inelastic behavior of jointed rock masses that takes into account the mechanical behavior and geometric characteristics of cracks and joints. The basic idea is that the microplane modeling of rock masses under general triaxial loading, including compression, requires the isotropic rock matrix and the joints to be considered as two d...
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The Geological Strength Index (GSI) system, proposed in 1995, is now widely used for the estimation of the rock mass strength and the rock mass deformation parameters. The GSI system concentrates on the description of two factors, rock structure and block surface conditions. The guidelines given by the GSI system are for the estimation of the peak strength parameters of jointed rock masses. The...
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Discrete element modeling of explosion-induced fracture extension in jointed rock masses
The explosion process of explosives in a borehole applies a very high pressure on its surrounding rock media. This process can initiate and propagate rock fractures, and finally, may result in the rock fragmentation. Rock fragmentation is mainly caused by the propagation of inherent pre-existing fractures of the rock mass and also from the extension of the newly formed cracks within the intact ...
متن کاملSimulation Analysis on the Strength and Acoustic Emission Characteristics of Jointed Rock Mass
Original scientific paper To analyse the influence of joint angle, number and spacing on the strength and acoustic emission (AE) characteristics of rock mass, the uniaxial compression model of rock specimens was established using the micro particle flow PFC2D software platform. The intact rock parameters were determined via trial and error, joints with different angles, numbers and spacing were...
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ژورنال
عنوان ژورنال: Rock Mechanics and Rock Engineering
سال: 2011
ISSN: 0723-2632,1434-453X
DOI: 10.1007/s00603-011-0152-7