Under complex geostress caused by long-term geological evolution, approximately parallel
bedding structures are normally created in rocks due to sedimentation or metamorphism …

The failure characteristics and the various induced fractures of shale are investigated in this
paper. Brazilian tests were conducted for different inclination angles of the weak planes of …

Shale gas is an important supplement to the supply of natural gas resources and plays an
important role on the world's energy stage. The efficient implementation of hydraulic …

When tunneling through deep-buried layered soft strata, asymmetric deformation of
surrounding rock and asymmetric mechanical behavior of supporting structures are often …

Bedding planes or layers can have a serious effect on the mechanical behaviour of shale
rock. Fractures occurring along bedding planes form a fracture network in shale hydraulic …

This paper presents experimental results on the anisotropy of the fracture toughness,
Brazilian tensile strength, and the fracture process zone (FPZ) in granodiorite samples. The …

The effect of bedding plane orientations on shear strength and failure mechanisms of shale
is investigated, with an emphasis on the shear parameters of the bedding planes. This study …

Multi-stage fracturing of horizontal wells to recover shale gas has attracted substantial
renewed interest in the physical and mechanical characteristics of shale. The mechanical …

Shales are considered to be both source and cap rocks, and play an important role in
various geotechnical applications including oil and gas exploration and production. A deep …

This paper presents bonded-particle discrete element modeling with embedded smooth
joints for simulating the mechanical behavior of transversely isotropic rock with systematic …