We consider the problem of contact interaction punches various shapes with an elastic foundation modeled by layer two bedding coefficients. The application this model makes it possible to determine not only stress states punch and but also their displacements. perform numerical analyses compare results obtained for different models foundations punches.

The paper presents a theory of the “plane weakness” modelling applied to deviated borehole that penetrated through laminated shale containing numerous parallel weakness planes. obtained results show strength envelope for anisotropic rock is characterised by U-shaped reduction in failure along plane, confining pressure from 20 MPa 80 whithout any change mechanism shale. In terms failure, there r...

The Eastland Woolen Mill (EWM), which straddled the East Branch of the Sebasticook River in Corinna, Maine, was listed on the United States Environmental Protection Agency (USEPA) National Priority List in July of 1999. The site is currently undergoing clean-up activities. The United States Army Corps of Engineers New England District is managing site activities under a cooperative interagency ...

The presence of bedding planes (BPs) in unconventional shale reservoirs is common and widespread. BPs always affect fracture propagation. objective this study was to investigate the impacts on multiple hydraulic fracturing. were assumed be perpendicular direction fractures. Based block distinct element method, we established a numerical model simulate propagation with BPs. considered fluid part...

various cross-sectional and longitudinal studies have suggested that synthetic bedding is associated with asthma, allergic rhinitis and eczema while feather bedding seems to be protective. synthetic bedding items have higher house dust mite allergen levels than feather bedding items. this is possibly the mechanism involved although fungal and bacterial proinflammatory compounds and volatile org...

Constitutive equations for inelastic behavior of anisotropic materials have been a challenge for decades. Presented is a new spherocylindrical microplane constitutive model that meets this challenge for the inelastic fracturing behavior of orthotropic materials, and particularly the shale, which is transversely isotropic and is important for hydraulic fracturing (aka fracking) as well as many g...

Two hundred seventy-three crossbred steer calves were fed until slaughter (November through May, 189 days) in either semi-confinement (partial overhead shelter, 88 sq. ft. per steer, concrete pen surface) or conventional open lots (windbreak, 448 sq. ft. per steer, dirt surface with mound). Within each housing system, cattle were provided with no bedding or bedding in the form of oat straw or s...