Zobrazeno 1 - 10
of 660
pro vyhledávání: '"Hoek–Brown criterion"'
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 8, Pp 3149-3164 (2024)
To understand the strengths of rocks under complex stress states, a generalized nonlinear three-dimensional (3D) Hoek‒Brown failure (NGHB) criterion was proposed in this study. This criterion shares the same parameters with the generalized HB (GHB)
Externí odkaz:
https://doaj.org/article/7421a8af574a472eaf06e66cbe90e108
Publikováno v:
Soils and Foundations, Vol 64, Iss 5, Pp 101508- (2024)
Evaluation of seismic bearing capacity is to be vital for design of strip foundations in earthquake areas. Combining the upper bound theorem of limit analysis, the discrete technique is successfully extended in this study to investigate the seismic u
Externí odkaz:
https://doaj.org/article/e04c68b3f2a64e5b9afc1880d655b278
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 5, Pp 1649-1666 (2024)
Excavation-induced disturbances in deep tunnels will lead to deterioration of rock properties and formation of excavation damaged zone (EDZ). This excavation damage effect may affect the potential rockburst pit depth. Taking two diversion tunnels of
Externí odkaz:
https://doaj.org/article/bf121eea4ab5426ebeae83b3fb039c04
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 15, Iss 12, Pp 3118-3130 (2023)
Hoek-Brown (HB) failure criterion is widely used to predict the strength of intact or heavily jointed rock mass. For stability analysis of rock slopes governed by the HB failure criterion, the equivalent linearity to Mohr-Coulomb (MC) criterion is of
Externí odkaz:
https://doaj.org/article/e4e87772bbb445dfaa3b3fc5f6a36163
Akademický článek
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Autor:
Seelae Phaisopha, Hideki Shimada, Takashi Sasaoka, Akihiro Hamanaka, Phanthoudeth Pongpanya, Seva Shorin, Khounma Senthavisouk
Publikováno v:
Mining, Vol 3, Iss 3, Pp 463-482 (2023)
This study investigates the transition from surface to underground mining at the Sepon Gold mine. The stability of surface slopes is assessed prior to commencing underground operations. Stope mining is adopted based on ore body characteristics and ge
Externí odkaz:
https://doaj.org/article/c775d854790a490fb94c6786015c9e7d
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 14, Iss 6, Pp 1836-1848 (2022)
An analysis of tunnel face stability generally assumes a single homogeneous rock mass. However, most rock tunnel projects are excavated in stratified rock masses. This paper presents a two-dimensional (2D) analytical model for estimating the face sta
Externí odkaz:
https://doaj.org/article/e9fc5578c36545c3a312d7506016f333
Autor:
Wuhao Guo, Yintong Guo, Zhenhua Cai, Hanzhi Yang, Lei Wang, Chunhe Yang, Guokai Zhao, Zhenhui Bi
Publikováno v:
Journal of Petroleum Exploration and Production Technology, Vol 13, Iss 3, Pp 827-841 (2022)
Abstract The high temperature and high in-situ stress geological environment can significantly affect the mechanical properties, failure modes, and deformation characteristics of deep shale reservoirs. In this study, real-time high temperature triaxi
Externí odkaz:
https://doaj.org/article/980462b7d2f54bbcbdafd2195eea67f2
Publikováno v:
Mining, Vol 2, Iss 3, Pp 589-615 (2022)
Vipingo quarry in Kilifi county, Kenya, is one of the quarries supplying coral limestone for limestone manufacturing in the coastal region. Due to its close proximity to the Indian ocean, the semidiurnal ocean tides tend to have an influence on the s
Externí odkaz:
https://doaj.org/article/2cd319f1f71044bc8175bc6805690296
Publikováno v:
Soils and Foundations, Vol 63, Iss 4, Pp 101356- (2023)
There is a development trend from qualitative towards quantitative analysis for tunnel stability. The widely accepted convergence-confinement method (CCM) provides a quantitative framework for tunnel stability analysis, while the conventional CCM bas
Externí odkaz:
https://doaj.org/article/6b57ac279b3848ce85709851afd73fb2