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[PDF] Top 20 Estimation of Rock Mass Parameters using Intact Rock Parameters

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Estimation of Rock Mass Parameters using Intact Rock Parameters

Estimation of Rock Mass Parameters using Intact Rock Parameters

... on rock mechanics and geotechnical problems, to determine failure criteria, the cohesion and internal friction angle of the rock mass parameters have been ...each rock mass and ... See full document

8

Assessment of Rock Mass Quality and Support Estimation along Headrace Tunnel of a Small Hydropower in District Mansehra, Khyber Pakhtunkhwa, Pakistan

Assessment of Rock Mass Quality and Support Estimation along Headrace Tunnel of a Small Hydropower in District Mansehra, Khyber Pakhtunkhwa, Pakistan

... [2]. Rock mass classification systems have been effectively applied in many engineering projects especially tunneling projects [3] ...the rock mass classification systems have been proved ... See full document

20

Assessments of applicability of Q and RMi systems in binary tunnels of Bakhtiari dam_ Iran

Assessments of applicability of Q and RMi systems in binary tunnels of Bakhtiari dam_ Iran

... main rock mass classification systems make use of similar rock mass ...comprehensive estimation systems, determining the real specifications of jointed rocks faces some ...of ... See full document

8

Investigation of the rock blast fragmentation based on the specific explosive energy and in-situ block size

Investigation of the rock blast fragmentation based on the specific explosive energy and in-situ block size

... design parameters and the rock mass parameters are considered together to create a mean fragment size prediction ...the rock fragmentation consider the intact rock and ... See full document

6

Alternative Software for Evaluating Preliminary Rock Stability of Tunnel Using Rock Mass Rating (RMR) and Rock Mass Quality (Q) on Android Smartphone

Alternative Software for Evaluating Preliminary Rock Stability of Tunnel Using Rock Mass Rating (RMR) and Rock Mass Quality (Q) on Android Smartphone

... of rock type and the volumetric joint count) are only for the restricted ...Different rock type has different properties. The same rock in different areas may have different ...new rock ... See full document

14

The Application Of Point Estimate Method (pem) In The Tunnel No. 2 Of Kurdistan, Nw Iran

The Application Of Point Estimate Method (pem) In The Tunnel No. 2 Of Kurdistan, Nw Iran

... geomechanical parameters in finite element numerical models using statistical ...techniques. Using point estimate method (PEM) we combine probabilistic input variables such as deformation modulus, ... See full document

5

A Statistical-Probabilistic Pattern for Determination of Tunnel Advance Step by Quantitative Risk Analysis

A Statistical-Probabilistic Pattern for Determination of Tunnel Advance Step by Quantitative Risk Analysis

... mechanical parameters of rock mass on advance step length at Shahriar water diversion tunnel were investigated across sections of good, fair and poor quality (as determined per RMR ...the ... See full document

16

A model for estimation of stress-dependent deformation modulus of rock mass

A model for estimation of stress-dependent deformation modulus of rock mass

... of rock mass has a significant role in the support design of an underground ...for estimation of deformation modulus do not consider its stress ...for estimation of deformation ...input ... See full document

5

Influence of Blasting Parameters and Density  of Rocks on Blast Performance at  Tschudi Mine, Tsumeb, Namibia

Influence of Blasting Parameters and Density of Rocks on Blast Performance at Tschudi Mine, Tsumeb, Namibia

... blast parameters has on the performance of a ...meters, rock parameters and blast geometry. Rock fragmentation is dependent on two main factors, the rock properties which are ... See full document

14

Geotechnical Investigation and Prediction of Rock Burst, Squeezing with Remediation Design by Numerical Analyses along Headrace Tunnel in Swat Valley, Khyber Pakhtunkhwa, Pakistan

Geotechnical Investigation and Prediction of Rock Burst, Squeezing with Remediation Design by Numerical Analyses along Headrace Tunnel in Swat Valley, Khyber Pakhtunkhwa, Pakistan

... areas. Rock bursting is a common and serious form of disasters that can happen in deep underground ...variable rock cover, this variation can induce instabil- ities like spalling, raveling, squeezing and ... See full document

22

Back analysis of inter-ramp slope failure in Teghout copper mine

Back analysis of inter-ramp slope failure in Teghout copper mine

... accurate estimation of geotechnical parameters of a porphyry rock mass [2, ...the rock mass is not governed by faults and major joints, the rock mass could be ... See full document

8

Simple Correlations between Rock Abrasion and Other Significant Rock Properties for Rock Mass and Intact Quartzite

Simple Correlations between Rock Abrasion and Other Significant Rock Properties for Rock Mass and Intact Quartzite

... a rock mass in situ . RQD value depends on a number of parameters such as the state of in-situ stress, direction of drilling, degree of weathering, amount of jointing and is used as one parameter to ... See full document

15

The Effect Of Rock Mass Locked-in Stresses On The Axial Force Of Rock Bolts

The Effect Of Rock Mass Locked-in Stresses On The Axial Force Of Rock Bolts

... a rock mass body, or in parts of it, that's in equilibrium after all boundary loads have been ...multilayer rock masses consisting of intermittent weak and stiff layers that firmly welded together ... See full document

7

Predicting survival of western rock lobsters Panulirus cygnus using discriminant analysis of hemolymph parameters taken immediately following simulated handling treatments

Predicting survival of western rock lobsters Panulirus cygnus using discriminant analysis of hemolymph parameters taken immediately following simulated handling treatments

... The second trial also returned a number of hemocyte-related parameters as predictors of future mortality, the significance of which have been discussed elsewhere (Fotedar et al. 2001; Jussila et al. 2001; ... See full document

37

Assessment of permafrost distribution maps in the Hindu Kush Himalayan region using rock glaciers mapped in Google Earth

Assessment of permafrost distribution maps in the Hindu Kush Himalayan region using rock glaciers mapped in Google Earth

... Mapped rock glaciers in relation to the Permafrost Zona- tion Index summarized over the mapped HKH ...which rock glaciers can be expected to occur and to be observed; for each pixel, this is determined ... See full document

11

The Effect of Micro Structure on Fatigue Behaviour of Intact Sandstone

The Effect of Micro Structure on Fatigue Behaviour of Intact Sandstone

... the stiffness of the testing machine played a critical role because the stored energy in the total system dictated the energy release rate. Peng [10] questioned the view that a violent fracture was characteristic ... See full document

8

Probabilistic stability analysis of crushed fault zone in the Zaker-Sorkhedizaj tunnel, NW Iran

Probabilistic stability analysis of crushed fault zone in the Zaker-Sorkhedizaj tunnel, NW Iran

... The values of minimum and maximum UCS varies from 12 to 27 MPa, respectively, and the average value of 20 MPa. The low values of the UCS are mainly due to fragmentation nature of these rocks. Therefore, according to ... See full document

6

Stabilitation Research of the Tunnel Anchorage of Dadu River Bridge in Luding in Yaan to Kangding Expressway

Stabilitation Research of the Tunnel Anchorage of Dadu River Bridge in Luding in Yaan to Kangding Expressway

... rockmass parameters from tests, the three-dimensional elastoplastic analysis has been performed to simulate the complete sequence of construction including highway tunnel excavation, tunnel-type anchorage ... See full document

9

Study on the Strength and Deformation Characteristics of
Rock Mass

Study on the Strength and Deformation Characteristics of Rock Mass

... jointed rock masses under different confining pressures. Properties of the rock masses with different joint fabric, with and without gouge have been considered in the ...jointed rock masses from the ... See full document

7

Plankton diversity, physico chemical parameters and conservation value of temporary freshwater rock pools

Plankton diversity, physico chemical parameters and conservation value of temporary freshwater rock pools

... on rock substrate is ...Physico-chemical parameters: Water quality characteristics of freshwater rock pools assessed from different studies are presented in Table ...granite rock pools results ... See full document

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