Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Qi-Hu Qian"'
Publikováno v:
Rock Mechanics and Rock Engineering. 55:6761-6778
Publikováno v:
Acta Mechanica. 233:869-887
Publikováno v:
Science China Technological Sciences. 65:458-469
Permeability is a key parameter of rock reservoirs, suggesting the flow characteristics of rock reservoirs. Permeability prediction of carbonate reservoirs is still a great challenge due to its complex pore network and wide range permeability. This w
Publikováno v:
Engineering with Computers. 39:1395-1414
The Drucker-Prager (D-P) model is a representative elastoplastic model for geomaterials because hydrostatic pressure is considered. This paper proposes an ordinary state-based peridynamic (OSB-PD) model with shear deformation based on D-P model and t
Publikováno v:
Engineering Analysis with Boundary Elements. 126:181-199
A 2D novel non-local lattice bond model (NLBM) is proposed to study the initiation, propagation and coalescence of cracks in rock materials. In the proposed NLBM, multiple neighboring lattices are utilized to solve the crack path preference problems.
Publikováno v:
Science China Technological Sciences. 63:755-767
Pore scale variables (e.g., porosity, grain size) are important indexes to predict the hydraulic properties of porous geomaterials. X-ray images from ten types of intact sandstones and another type of sandstone samples subjected to triaxial compressi
Publikováno v:
Journal of Structural Geology. 126:129-145
For a full understanding of the cracking processes in granite, uniaxial compression tests are conducted on prismatic specimens with pre-existing flaws, and digital imaging and AE techniques are applied to monitor real-time rupture behaviors. The digi
Publikováno v:
Cold Regions Science and Technology. 158:166-181
To study the rock fracturing characteristics in cold-region engineering, uniaxial compression tests are conducted on double unparallel fissure-contained sandstone specimens subjected to freeze-thaw (FT) cycles. First, the effects of FT cycles on the
Publikováno v:
International Journal of Rock Mechanics and Mining Sciences. 146:104857
The plastic behaviors of geomaterials often obey non-associated flow rule. In this paper, a two-dimensional (2D) ordinary state-based peridynamic (OSB-PD) increment model with shear deformation based on Drucker-Prager (D-P) criterion with non-associa
Publikováno v:
Rock Mechanics and Rock Engineering. 49:3481-3494
This paper experimentally investigates the cracking behavior of rock-like specimens containing artificial open flaws under uniaxial compressive loads. The present experiments mainly focus on the effects of crack openings on crack propagation and coal