The failure modes can be associated with the strength and degree of ductility of the failure behaviour. 1 Introduction The strength and deformability of the rock mass is controlled by its discontinuities. Discontinuities along a same plane separated by intact material are referred to as non-...
(a). Crushing of the roof under high stress, (b) expansion of fractures in the surrounding rock due to mining activities. Full size image Experimental studies of damage mode of rock mass The granite utilized in the experiment originated from the − 930 m level of the Xinli mining area...
Notwithstanding, for σref = 0.57 MPa (see Appendix B) and compressive stresses greater than ca. 2 MPa, the exponential terms of Eq. (13) corresponding to the loaded directions tend to zero and the behaviour becomes virtually identical to our model (Eq. 9). Furthermore, as can be ...
Continuum model for the mechanical behaviour of an oriented fractured rock mass (In French) : Hadjhassen, F; Fine, J; Tincelin, E Proc 7th ISRM International Congress on Rock Mechanics, Aachen, 16–20 September 1991V1, P251–256. Publ Rotterdam: A A Balkema, 1991Show moreShow less...
A comparative evaluation of shear behaviour of rock joints under static and dynamic loading Article 15 October 2022 Introduction Rough and undulating rock mass structural planes widely develop along rocky slopes. Structural planes reduce the integrity of a rock mass and improve the physical and mechan...
G. Pile behaviour-theory and application. Geotechnique 39(3), 365–415. https://doi.org/10.1680/geot.1989.39.3.365 (1989). Article Google Scholar Randolph, M. F. & Wroth, C. P. An analysis of the vertical deformation of pile groups. Geotechnique 29, 423–439. https://doi.org/...
Breast cancer survivors in the group based cognitive behaviour therapy nutrition and exercise program taking a supplement of 3g LCn-3s acids will have lower levels of inflammation after 12 and 24 weeks compared to participants of either the specifically designed nutrition and exercise program or partic...
The different ‘states’ can claim to have their own name, their behaviour may be different and their mood states can be different. They may have markedly different mannerisms and facial expressions. They may also dress differently and talk with a different accent. Some have different sexual ...
\(\left( {p/p_{a} } \right)^{{0.7}}\)plane, where\({p}_{{\mathrm{a}}}\)is atmospheric pressure (101 kPa). This linearity demonstrates the granular-type of behaviour of the remoulded rock also observed for crushable sands (Ciantia et al.2019b)....
The creep characteristics and potential deformation patterns of gangue backfill material are crucial in backfill mining operations. This study utilizes crushed gangue from the Gangue Yard in Fuxin City as the research material. An in-house designed, larg