نتایج جستجو برای: jointed rock mass

تعداد نتایج: 512430  

Buchitic glassy rocks appear within the skarn of contact metamorphic aureole of Feshark intrusive complex situated 30 km northeast of Isfahan. Intrusive complex is a multistage intrusion . Noritic gabbro is the first inttrusion which is invaded later on by a granitic melt. Granitic melt has metasomatically altered the gabbro and as a consequence a suite of hybrid rocks like monzogabbro, m...

Journal: :Journal of the Mining and Metallurgical Institute of Japan 1973

Journal: :مهندسی معدن 0
مهدی علامی دانشگاه امام خمینی قزوین مهدی حسینی دانشگاه امام خمینی قزوین

the deformation modulus of a rock mass is an important input parameter in any analysis of rock mass behavior for geotechnical projects such as dams. the determination of this parameter by in situ tests are time consuming and expensive. therefore, different researchers have proposed empirical relationships for estimating the value of rock mass deformation modulus. this work has been done by usin...

Journal: :journal of sciences islamic republic of iran 0

buchitic glassy rocks appear within the skarn of contact metamorphic aureole of feshark intrusive complex situated 30 km northeast of isfahan. intrusive complex is a multistage intrusion . noritic gabbro is the first inttrusion which is invaded later on by a granitic melt. granitic melt has metasomatically altered the gabbro and as a consequence a suite of hybrid rocks like monzogabbro, monzodi...

Journal: :Processes 2023

Numerical testing is an ideal method in the research on mechanical behaviors of jointed rock. However, there are few systematic studies focused comparison between two-dimensional (2D) and three-dimensional (3D) simulation effects rock behaviors, particularly those In this paper, a particle flow model was established by utilizing PFC2D PFC3D to represent materials, (especially rock) (uniaxial co...

Journal: :International Journal of Mining Science and Technology 2017

Journal: :Minerals 2023

The characteristics of plastic zone are a critical basis for the control and stability analysis surrounding rock roadways. This paper aims to investigate rationality applicability numerical methods deep jointed Based on detailed investigation experiments, distribution roadway under different GSI values buried depths was analyzed by analytical methods, parameter reduction, equivalent mass techno...

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