Results 251 to 260 of about 70,920 (305)

Abrasivity behavior analysis and fuzzy stochastic prediction of weakly cemented sandstones using an improved RBF neural network for quantifying uncertainties. [PDF]

PLoS One
Yao Y, Lin J, Li X, Li Y.
europepmc   +1 more source

Influence mechanism of thick hard layer on fracture and energy release characteristics of composite roof. [PDF]

Sci Rep
Song XS, Wang ZQ, Zhang PF, Guo L, Zhao TB, Han GW.   +5 more
europepmc   +1 more source

Study on floor large deformation and failure mechanism of water-rich soft rock roadway. [PDF]

Sci Rep
Li L, Zhang Y, Zhou R, Qi K, Zhang Y, Li Q.   +5 more
europepmc   +1 more source

Physical simulation test of true triaxial rock mechanics for waterflood dilation in offshore oilfields. [PDF]

Sci Rep
Li D, Chen H, Liang X, Huang Z, Gao Y.
europepmc   +1 more source

AI-assisted reliability-based design framework for tunnel concrete linings in weak rocks. [PDF]

Sci Rep
Khani J, Nejati HR, Goshtasbi K, Rostamabadi S, Mahmoodzadeh A.   +4 more
europepmc   +1 more source

Enhancing the Durability of Bituminous Concrete Using Plastic Waste on Soft Rock Aggregates. [PDF]

Polymers (Basel)
Laldintluanga H, Zorinkima, Ramhmachhuani R.   +2 more
europepmc   +1 more source

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Aspects of rock strength

Bulletin of Engineering Geology and the Environment, 1998
This paper discusses some important factors to be considered when undertaking rock strength tests and describing the strength of a rock as assessed during field investigations. It highlights the lack of consistency in the commonly used descriptive categories and draws attention to the disparencies which can arise when rocks are tested under different ...
A B Hawkins
exaly   +2 more sources

A strength criterion for rocks

Mechanics of Materials, 2021
Abstract A simple strength criterion J 2 = α + β σ 3 is investigated to describe the ultimate stress capacity of rocks. This criterion takes the intermediate principal stress σ 2 into consideration. The nonlinear parabolic form on the meridian plane makes the present criterion is more suitable in rock mechanics than the ...
Chunguang Li, Cuihua Li, Rong Zhao, Lei Zhou   +3 more
openaire   +1 more source

On the Measurement of the Tensile Strength of Soft Rocks

Rock Mechanics and Rock Engineering, 2005
This paper reports on a comparative study of various types of experimental tests for measuring the tensile strength of rocks and rock-like materials. A critical assessment is presented of some widely used laboratory techniques on the basis of experimental data from the literature and from the laboratory investigation performed in this study. Tests were
COVIELLO A, LAGIOIA, Rocco, NOVA R.
openaire   +2 more sources

The shear strength of rock and rock joints

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1976
Abstract Rock joints exhibit a wide spectrum of shear strength under the low effective normal stress levels operating in most rock engineering problems. This is due to the Strong influence of surface roughness and variable rock strength. Conversely, under the high effective normal stress levels of interest to tectonophysicists the shear strength ...
openaire   +1 more source