Rock Mass Rating (RMR)
Comparative Analysis of Rock Mass Rating Prediction Using Different Inductive Modeling Techniques
... The rock mass rating (RMR) classification system is the integral part in the engineering design and accomplishment of underground structures especially tunnels and caverns within the rock ...
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Alternative Software for Evaluating Preliminary Rock Stability of Tunnel Using Rock Mass Rating (RMR) and Rock Mass Quality (Q) on Android Smartphone
... preliminary rock mass stability and suggesting support method for the early state ...Suitable rock mass classifications for tunnel are rock mass rating (RMR) and ...
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Different research techniques and models in rock mass rating and slope stability analysis
... [29], Rock slope stability assessed by Lysandros Pantelidis [48], Advanced numerical techniques reviewed by Doug Stead et ...al.[26], Rock mass rating classification analyzed by Aksoy [2], ...
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Comparative Analysis of the Hard Hillsides Stability by Empirical Methods and Limit Equilibrium: Case of Ultra Basic and Andesites of Mako and Marbles of Bandafassi (Senegal)
... The rock masses outcrop in the form of hills and cliffs that could sometimes be occupied by the ...geomechanical rock mass classification indexes Rock Mass Rating (RMR), the ...
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Geotechnical Investigation of Slopes along the National Highway (NH 1D) from Kargil to Leh, Jammu and Kashmir (India)
... Rock mass rating was introduced by Bieniawski [25] and later on modified [26] ...the rating values Table 1 for five parameters ...intact rock, RQD, spacing of discontinuities, condition ...
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Estimation of Rock Mass Parameters using Intact Rock Parameters
... of rock mass are controlled by multiple parameters including the continuity, orientation and frequency of joints in rock mass and joints ...intact rock specimens in laboratory for ...
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Geotechnical Investigation and Prediction of Rock Burst, Squeezing with Remediation Design by Numerical Analyses along Headrace Tunnel in Swat Valley, Khyber Pakhtunkhwa, Pakistan
... of rock mass to determine the estimated required support alignment by using Rock mass rating (RMR) and Tunneling quality index (Q-system) dur- ing excavation along ...the rock ...
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Prediction of strength and deformability of an interlocked blocky rock mass using UDEC
... a rock mass is critically important for the safe and economic design of many engineering systems, including dams, foundations, and ...excavations. Rock mass properties are essential inputs ...
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Assessment of Rock Mass Quality and Support Estimation along Headrace Tunnel of a Small Hydropower in District Mansehra, Khyber Pakhtunkhwa, Pakistan
... structure rating (RSR) by Wickham [4] considered two elements in- fluencing on rock mass behavior: geological parameters and construction para- ...meters. Rock mass rating (RMR) ...
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Simple Correlations between Rock Abrasion and Other Significant Rock Properties for Rock Mass and Intact Quartzite
... (UCS), rock quality designa- tion (RQD) and hardness for rock engineering to help determine the amount of scour at foundation locations in order to prevent structural collapse, wear on drilling tools and ...
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Geotechnical Behavior of Eastern Senegal Rock Mass Slopes by Geomechanical Classifications and Applications
... Senegal, rock mechanic studies began in last four years and were a very new engineering ...By Rock Mass Rating (RMR) and Geological Strength Index (GSI), sandstones of the Dindifello Cliff ...
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Effects of Rock Mass Conditions and Blasting Standard on Fragmentation Size at Limestone Quarries
... and rock mass conditions by using a borehole camera and software for fragmentation ...of rock mass conditions such as fracture, discontinuity, mechanical properties of rocks and the blasting ...
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Rippability assessment of weathered sedimentary rock mass using seismic refraction methods
... in rock areas are the overall cost of the project, serious project delays reflected in the bill of quantities, tender, and claims that lead to the abandonment of the site in the preliminary ...the rock ...
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GEOTECHNICAL STUDY OF DRAA SFAR MINE (MARRAKESH, MOROCCO).
... the rock solid mass generates important induced constraints, according to dimensions and the depth of the work which can appear on the level of the stability on the grounds of the ...the rock solid ...
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Instability mechanisms affecting cultural heritage sites in the Maltese Archipelago
... Figure 6 reports the high resolution geological map and a representative cross-section for the Mdina site. Vilhena Palace (Area A), the Cathedral (Area B) and the Curtain Magazines (Area C), which display the most ...
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The analysis of engineering properties of the rock mass of Ghordanloo dam site, NE Iran
... The mechanical behavior of the rock is highly affected by the discontinuities systems properties. Discontinuities can cause the strength to be lessened, and cause permeability and plasticity to increase (Bell, ...
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Hydraulic fracture propagation in a heterogeneous stress field in a crystalline rock mass
... Figure 2c presents a Mohr–Coulomb circle for the unper- turbed stress state considering the observed hydrostatic for- mation pressure of 0.3 MPa. Four different failure limits are presented between 7 and 10 MPa of ...
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Stolper, Anno (2011): The Incentives of Intermediaries in Financial Markets: A Critical Analysis. Dissertation, LMU München: Volkswirtschaftliche Fakultät
... credit rating agencies and fund managers, may not always act in the best interest of in- vestors, regulators and, eventually, tax ...credit rating agencies, for instance, have assigned favorable ratings to ...
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A Review of Research on Catastrophic Formation and Evolutionary Mechanism of Deep High Stress Rock Mass under Impact Loading
... of rock failure under impact load, Chen Qingshou [30] divided nine kinds of rock into three categories, and tested them with dynamic ...that rock specimen periphery would spall when strain rates is ...
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Numerical simulation of gravity dam seepage field based on UDEC – with Datengxia hydropower station as an example
... surface rock mass fractures, i.e. 2m. Since the deep rock mass has little impact on the stability of the dam foundation rock mass, the deep fracture spacing is set at ...
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