Estimates of rock joint shear strength in part of the Fimiston open pit operation in Western Australia

Wines, David; Lilly, P.A.

doi:10.1016/s1365-1609(03)00020-0

Cited by 31 publications

(11 citation statements)

References 30 publications

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“…In contrast, many more local peaks or stress drops can be observed in the complete stress-strain curves at medium values of partially-spanning joint orientations such as 45°and 60°, in which disperse damage events with large counts per damage event occur during the rupture of the specimen. The underlying mechanism in varying damage events during the rupture of the samples with varying partially-spanning joint orientations is a good analog to the fore-shock, main-shock and aftershock sequences of earthquakes around faults with varying orientations (Reasenberg, 1999;Tang et al, 2003a;Wines and Lilly, 2003).…”

Section: Aramis Resultsmentioning

confidence: 99%

Influence of the geometry of partially-spanning joints on mechanical properties of rock in uniaxial compression

Ranjith

Wasantha

et al. 2013

Engineering Geology

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Section: Aramis Resultsmentioning

confidence: 99%

Influence of the geometry of partially-spanning joints on mechanical properties of rock in uniaxial compression

Ranjith

Wasantha

et al. 2013

Engineering Geology

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“…근래에 들어와서는 절리 면의 형상을 정밀하게 수치화할 수 있는 기술의 발달로 정 밀한 삼차원 거칠기 분석이 가능해져서 새로운 형태의 절리 면 전단강도 관계식들이 제안되기도 하였다 (Belem et al, 2000;Yang and Chiang, 2000;Grasselli et al, 2002;Park andSong, 2013, Jang andJang, 2015). 을 사용하였다 (Horn and Deere, 1962;Stimpson, 1981;Cruden and Hu, 1988;Bruce et al, 1989;Wines and Lilly, 2003;Alejano et al, 2012;Ruiz and Li, 2014;González et al, 2014 (Patton, 1966;Barton, 1973). Barton (1973Barton ( , 1976 (Barton, 1973;Stimpson, 1981 (Coulson, 1970;Wines and Lilly, 2003;Ruiz and Li, 2014).…”

Section: 그러나 이러한 선형관계의 전단강도 기준이 제안되기 이 전에도 많은 연구자들은 전단과정에서 발생되는 돌기들의unclassified

“…을 사용하였다 (Horn and Deere, 1962;Stimpson, 1981;Cruden and Hu, 1988;Bruce et al, 1989;Wines and Lilly, 2003;Alejano et al, 2012;Ruiz and Li, 2014;González et al, 2014 (Patton, 1966;Barton, 1973). Barton (1973Barton ( , 1976 (Barton, 1973;Stimpson, 1981 (Coulson, 1970;Wines and Lilly, 2003;Ruiz and Li, 2014). (Horn and Deere, 1962;Stimpson, 1981;Cruden and Hu, 1988;Bruce et al, 1989;Wines and Lilly, 2003;Alejano et al, 2012;Ruiz and Li, 2014;González et al, 2014).…”

Section: 그러나 이러한 선형관계의 전단강도 기준이 제안되기 이 전에도 많은 연구자들은 전단과정에서 발생되는 돌기들의mentioning

confidence: 99%

“…Barton (1973Barton ( , 1976 (Barton, 1973;Stimpson, 1981 (Coulson, 1970;Wines and Lilly, 2003;Ruiz and Li, 2014). (Horn and Deere, 1962;Stimpson, 1981;Cruden and Hu, 1988;Bruce et al, 1989;Wines and Lilly, 2003;Alejano et al, 2012;Ruiz and Li, 2014;González et al, 2014). 기울임 시험법에 대한 구체적인 연 구는 Stimpson (1981)에 의해 처음으로 수행되었으며, 그는 (Muralha, 1995).…”

Section: 그러나 이러한 선형관계의 전단강도 기준이 제안되기 이 전에도 많은 연구자들은 전단과정에서 발생되는 돌기들의unclassified

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Experimental Study for determining the Basic Friction Angle of the Rock Joint

Jang¹,

Jeong²,

Jang³

2016

The Journal of Engineering Geology

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Samples of Hangdeung granite and Berea sandstone containing sliding planes were prepared by saw-cutting and polishing using #100 or #600 grinding powders. Their basic friction angles were then measured directly in direct shear tests and triaxial compression tests, and also in tilt tests, which measure the angles indirectly. Although the angles measured by the direct methods were generally accurate, those measured along certain planes were greatly different from the others depending on the condition of the plane. The tilt tests yielded similar angles regardless of the sliding plane condition or the rock type; however, the error range was relatively wide. Sliding planes polished by the grinding powders yielded more accurate results than those cut by the saw and tested without polishing, as polishing ensured consistent conditions among all the planes. Sliding planes polished using #100 grinding powder yielded better results than polishing with #600 grinding powder. Therefore, the basic friction angles measured along the sliding planes polished using #100 grinding powder, as obtained in direct shear and triaxial compression tests, were the most reliable. The angle could also be measured satisfactorily by tilt testing along sliding planes polished with #100 grinding powder.

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“…Although direct shear tests under saturated conditions were done, the tested values of shear strength under saturated conditions have not been compared to the corresponding predicted values by the JRC-JCS model. Wines and Lilly (2003) has conducted shear tests and empirical estimations on four sets of joints under dry conditions. They found that below 300-700 kPa normal stress levels, the JRC-JCS model produces a lower shear strength envelope, while above these levels the direct shear test provides a lower shear strength envelope.…”

Section: Introductionmentioning

confidence: 99%

Comparison between empirical estimation by JRC-JCS model and direct shear test for joint shear strength

et al. 2011

J. Earth Sci.

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In order to study the reliability of the empirical estimation of joint shear strength by the JRC (joint roughness coefficient)-JCS (joint compressive strength) model, natural rock joints of different lithologic characteristics and different sizes were selected as samples, and their shear strengths under dry and saturated conditions were measured by direct shear test and compared to those estimated by the JRC-JCS model. Comparison results show that for natural rock joints with joint surfaces closely matched, the average relative error of joint shear strength between empirical estimation and direct shear test is 9.9%; the reliability of the empirical estimation of joint shear strength by the JRC-JCS model is good under both dry and saturated conditions if the JRC is determined accounting for directional statistical measurements, scale effect and surface smoothing during shearing. However, for natural rock joints with joint surfaces mismatched, the average relative error of joint shear strength between empirical estimation and direct shear test is 39.9%; the reliability of empirical estimation of joint shear strength by the JRC-JCS model is questionable under both dry and saturated conditions.

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Estimates of rock joint shear strength in part of the Fimiston open pit operation in Western Australia

Cited by 31 publications

References 30 publications

Influence of the geometry of partially-spanning joints on mechanical properties of rock in uniaxial compression

Influence of the geometry of partially-spanning joints on mechanical properties of rock in uniaxial compression

Experimental Study for determining the Basic Friction Angle of the Rock Joint

Comparison between empirical estimation by JRC-JCS model and direct shear test for joint shear strength

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