Results 231 to 240 of about 13,410 (292)

Effect of thickness ratio on uniaxial mechanical behavior of soft-hard composite rock masses: experimental analysis and modeling. [PDF]

Sci Rep
Li JH, Li YL, Wang P, Liu WX, Yang Y.
europepmc   +1 more source

Optical visualization of the full-field swelling of laminated rocks. [PDF]

Sci Rep
Liu J, Bai L, Jia Q, Liu X, Zhou L.
europepmc   +1 more source

A failure condition for layered rock

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1988
Abstract The present paper covers a failure criterion for heterogeneous layered media, based on the assumption that each of their components follows a Mohr-Coulomb type strength condition. The “homogenization technique” employed enables the formulation of a failure condition defined by four strength parameters; the procedure for the identification of
TALIERCIO, ALBERTO, SACCHI LANDRIANI, GIANNANTONIO   +1 more
openaire   +3 more sources

Investigation of anisotropic strength criteria for layered rock mass

Journal of Rock Mechanics and Geotechnical Engineering
Layered rock mass is a type of engineering rock mass with sound mechanical anisotropy, which is generally unfavorable to the stability of underground works.
Shuling Huang, Xiuli Ding, Chuanqing Zhang   +2 more
exaly   +2 more sources

Sensitivity Analyses of the Seepage and Stability of Layered Rock Slope Based on the Anisotropy of Hydraulic Conductivity: A Case Study in the Pulang Region of Southwestern China

Water (Switzerland), 2020
In the study of the seepage characteristics of layered rock slope under rainfall conditions, the majority of previous research has considered the hydraulic conduction to be isotropic, or only considered the anisotropy ratio of the hydraulic conductivity,
Guangyin Lu, Dongxin Bai, Shuai Luo
exaly   +2 more sources

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Stress waves in layered rocks

Acta Mechanica, 1992
In this paper two problems will be solved analytically: the reflection of plane stress waves at a free boundary and the reflection and refraction of plane stress waves at a welded interface separating two dissimilar materials. In particular, stress reflection and refraction coefficients will be derived and the superimposed state of stress in regions of
P. Borejko, H. P. Rossmanith, Y. Z. Wei
openaire   +1 more source

Layer-by-layer cutting of rocks

Journal of Mining Science, 2006
To describe the process of cutting of geomaterials by a two-sided wedge, a rigid-plastic model is considered taking into account the influence the wedge speed has on the cutting force, shear plane orientation, and sizes of sheared pieces.
openaire   +1 more source

Laboratory investigation on cooling effect of coarse rock layer and fine rock layer in permafrost regions

Cold Regions Science and Technology, 2004
Instability and failures of railway/roadway embankment are mainly caused by thaw settlement of permafrost in cold regions. To protect foundation soils beneath the embankment from thaw settlement is the primary construction principle. In the present study, the heat transfer characteristics of two cases of porous media were examined experimentally, with ...
Wenbing Yu, Yuanming Lai, Xuefu Zhang, Shujuan Zhang, Jiangzhang Xiao   +4 more
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DFIT Analysis and Interpretation in Layered Rocks

SPE Hydraulic Fracturing Technology Conference and Exhibition, 2020
Abstract Diagnostic fracture injection tests (DFITs) are often used to estimate formation properties such as closure stress, pore pressure, and matrix permeability. These estimations are typically based on analysis of pressure data assuming the closure of simple planar fractures in homogeneous reservoirs.
Shuang Zheng, Ripudaman Manchanda, HanYi Wang, Mukul Sharma   +3 more
openaire   +1 more source