The Hoek–Brown failure criterion and GSI – 2018 edition

Hoek, E.; Brown, E. T.

doi:10.1016/j.jrmge.2018.08.001

Cited by 1,005 publications

(987 citation statements)

References 32 publications

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“…This research using both Hoek-Brown 2002 and Barton failure criteria for rock mass and discontinuity plan, respectively. The Hoek-Brown criteria of rock mass have been widely used and applied in many constructions works on rock mass (Hoek et al, 2002). This criterion is a developed version of the previous …”

Section: Methodsmentioning

confidence: 99%

Geotechnical Investigation and Numerical Analysis of Rockfall in South Coast of Gunung Kidul Regency

Illiyin¹,

Faris

2017

Journal of the Civil Engineering Forum

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On 17 th of June 2015, rockfall occurred on the South Coast at Gunung Kidul Regency taking a few casualties. The preliminary investigation results concluded that many cliffs on the South Coast are dangerous, and there is a potential that similar events might happen in the future. Therefore, geotechnical investigation in order to plan mitigation action is necessary. Field investigations, laboratory work, and numerical modeling were employed in this study, focusing on Sadranan beach where the incident happened. Rock slope stability analyses by means two-dimensional finite element in both static and seismic conditions were conducted. The investigation results show that both biological decay and wave erosion influence the rock slope instability. Moreover, the infilling material in rock joint has considerable effect on the stability of the slope. However, the results from numerical simulation suggested that potential failure was originating from the intact rock body instead of the plane of discontinuities. In the seismic condition, the slopes are more vulnerable and further mitigation action should be considered in the future.

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Section: Methodsmentioning

confidence: 99%

Geotechnical Investigation and Numerical Analysis of Rockfall in South Coast of Gunung Kidul Regency

Illiyin¹,

Faris

2017

Journal of the Civil Engineering Forum

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“…The rock mass modulus (E rm ) of all domains was estimated according to Hoek and Diederichs (2006). A disturbance factor of D = 0.7 was used for small scale blasting in civil engineering slopes that results in modest rock mass damage if controlled blasting is used (Hoek et al 2002). The parameters used in the study are detailed in Table 1. SSR technique is often used with FEM to solve sophisticated problems such as estimating stability of slope (Ng et al 2000).…”

Section: Site Geologymentioning

confidence: 99%

Finite Element Analysis of Rock Slope Stability Using Shear Strength Reduction Method

You

Mandalawi

Soliman

et al. 2017

Sustainable Civil Infrastructures

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Abstract. Finite element analysis incorporating the shear strength reduction method was applied to study the west slope stability of an open cut mine in Australia using Mohr-Coulomb and generalized Hoek-Brown criteria. The pit of the mine had multiphase excavations and reached 180 m in depth. The study investigated three slope configurations, namely, Stage 1 inter ramp slope 43°, Stage 2 inter ramp slope 49°and optimized Stage 2 slope 54°. When implementing the generalized Hoek-Brown failure criterion, the equivalent factor of safety was 1.96, 1.87 and 1.40 under dry slope for the three configurations, respectively. However, under partly saturated conditions, the optimised slope would have a factor of safety 1.16. Furthermore, the generalised Hoek-Brown criterion generated lower factors of safety than the Mohr-Coulomb failure criterion. The difference is related to an overestimation of the shear strength parameters by the linear Mohr-Coulomb criterion under low confining stresses compared with the non-linear Hoek-Brown.

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“…Additional features include modeling of jointed rock with automatic generation of discrete joint or fracture networks using statistical models. The widely used GHB failure criterion was adopted for all analytical studies [31,32] which is expressed as:…”

Section: Analysis Of Lmsg Mining Layouts Using Numerical Modelingmentioning

confidence: 99%

A Novel Longwall Mining Layout Approach for Extraction of Deep Coal Deposits

et al. 2017

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As more easily mined deposits are depleted, the reserves are becoming more limited and less favorable. Deposits of coal or trona that are being longwall mined are deep and are getting deeper. Coal bursts and bumps frequently occur within development entries in longwall mining of deep mines due to high stresses. This paper presents a novel patented longwall mining layout "Longwall Mining with Split-level Gate roads (LMSG)" that has the potential to mitigate several problems related to deep mining (Patent No. ZL98100544.6). LMSG locates gate roads on either end of a longwall panel at different vertical heights within a coal seam or in a geologically split seam, so that the two adjacent panels can be partially offset horizontally. It is novel in that it incorporates unit operations of different mining methods into the system. By employing multiple slice longwall mining method locally at the face ends, and adjacent panels overlapping end to end, pillar-less longwall mining can be achieved to mine deep deposits. A conventional rectangular gate road pillar is therefore transformed into a small triangular pillar and the gate road of the subsequent panel can be located along or under the gob of the previously mined panel where the stresses are lower. Several mines in China and Russia are currently using the technology with reduced incidence of ground control problems. Through theoretical analysis, and physical and numerical modeling approaches, it is demonstrated that LMSG significantly improves stress environment for development entries, with associated reduction in coal bursts and ground control problems.

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The Hoek–Brown failure criterion and GSI – 2018 edition

Cited by 1,005 publications

References 32 publications

Geotechnical Investigation and Numerical Analysis of Rockfall in South Coast of Gunung Kidul Regency

Geotechnical Investigation and Numerical Analysis of Rockfall in South Coast of Gunung Kidul Regency

Finite Element Analysis of Rock Slope Stability Using Shear Strength Reduction Method

A Novel Longwall Mining Layout Approach for Extraction of Deep Coal Deposits

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