... reservoir characterization equation hydraulic fracturing loading upstream oil & gas wellbore integrity characteristic msu regularity chinese journal ae experiment mechanism experiment liberation axial loading criterion structural geology metals & mining rock mechanic relation...

... Abstract Dynamic soil pressure peak value distribution regularities of front and back Micropiles are analyzed through shaking table test. The wavelet packet tool is used to decompose the mixed loading EI wave, so as to study its spectral characteristics. The purpose is to provide a basis...

... ABSTRACT: The results of long-term in-situ studies of deformational processes in rock masses around worked-out spaces are presented. Certain regularities and mechanisms of rock mass deformation during stress-strain change have been established. Quantitative estimates of parameters for linear...

... years, and thanks to them some certain regularities in alteration of the massif properties have been found in a zone of its interaction with the dam at different stages of construction and operation of the structure. The received conclusions in many aspects are based upon the results of a quantity...

... stripped not less than 0,7 of its extent, i.e. 70 m. flow in porous media dimensionless parameter variation investigation fissure permeability Fluid Dynamics cavern rock fissure permeability problem solution rock filtration property metals & mining orientation regularity...

... ABSTRACT: The paper shows that all brittle material and rocks, irrespective of the body shape and its structure, feature a common intrinsic regularity of shear failure - formation of the tension cracks at the initial phase and the zones of compression and crushing in the principal stress...

... SYNOPSIS: The regularity with which mining excavation affects neighbouring orebodies is very important in metal mines, particularly those of considerable depth. Based on observations in dangerous locations the regularity is described with which rock pressure occurs. Moreover there is a report...

... with the consideration of those analysis methods that will be employed in solving an engineering problem. Taking into account what has been mentioned above there may be recommended three types of geomechanical models of rock masses unsed in design practice today; (Fig.1): 1) continuous, homogenous type; 2) regular...

... Summary Projection and building of high dams and other constructions in mountain folded regions require an investigation of rockfalls and landslides and an evalution of slope stability, especially in rocky ground. Regularities of rockfall and landslide formation are demonstrated as an example...