... Abstract In this paper, a detailed analysis is made to detect the morphology of Xuzhou marble from room temperature to 1400° using polarizing microscope and combine it with acoustic emission characteristic parameters from 200° to 800°. Some results are achieved: the marble samples would...

...Rock Characterisation, Modelling and Engineering Design Methods Feng, Hudson & Tan (Eds) © 2013 Taylor & Francis Group, London, ISBN 978-1-138-00057-5 Analysis of mechanical characteristics and energy dissipation in fracture rock under triaxial loading Y.N. Lu Key Laboratory of Roadway Bridge...

... continuous deformation field of rock material is showed microscopically in the process of damage by technology of 3D Digital Image Correlation under biaxial stress state. Based on characteristics of macroscopic deformation and micro-mechanical damage, the failure format and regulation of Jinping marble...

... Abstract Taking the carbonaceous phyllite as investigative subject, which is the weak layer widely distributed in Yunfu pyrite, Guangdong province, the deformation characteristics and strength properties of the carbonaceous phyllite rock mass are analyzed through laboratory uniaxial...

... Abstract The naturally existing fractures in a rock mass induce heterogeneity and anisotropy for its engineering properties, resulting in difficulties for investigation on hydrogeological characteristics of fractured rock masses. Aiming to gain more insight into the difference of permeability...

... storage while one cycle every day for compressed air energy storage. For investigation of mechanical characteristics of rock salt under injection and withdrawal cycles, triaxial cyclic loading tests were conducted using a MTS test system. Linear relationships between stress and strain under unloading...

... Abstract The change characteristics of meso-structure of marble are analyzed and studied under different temperature condition, the results show that the influence of temperature on marble microscopic structure are strong, combined with micro-photometer analysis. Marble minerals composite...

.... Hence, to examine and analyze the characteristic and reasons of some typical cases, it is important to better understand the structure induced deformation in tunnel and to provide valuable references for enhancing the connection between design, construction and investigation. Reservoir...

... criterion, which neglects the role of σ 2 , predicting only the lower limit of rock strength for a given σ 3 . strength crystalline rock characteristic Upstream Oil & Gas variation specimen compressive strength Coconino sandstone principal stress Reservoir Characterization Triaxial...

...Rock Characterisation, Modelling and Engineering Design Methods Feng, Hudson & Tan (Eds) © 2013 Taylor & Francis Group, London, ISBN 978-1-138-00057-5 Analysis on damage characteristic and depth of surrounding rock in Jinping II deep buried tunnel Chunsheng Zhang, Ning Liu & Xumin Wu HydroChina...

... characteristic rock mass structural geology pre-stressed anchor Rock mechanics anchor segment shear stress anchor rod anchorage segment maximum shear stress expression mechanics Rock Characterisation, Modelling and Engineering Design Methods Feng, Hudson & Tan (Eds) © 2013 Taylor & Francis Group...

... is analyzed by strength reduction method. But inhomogeneity is the basic characteristics for geotechnical materials. Engineering slope stability analysis safety factor Strength Reduction Method criterion sort judgment inhomogeneous characteristic equation Upstream Oil & Gas material...

..., the coal rock broken interface is clear and has obvious zonal distribution characteristics, the fracture of roof and two sides in roadway mostly present the evolution characteristics of irregular zonal, fracture zone and intact zone appear alternately, the distribution area of surrounding rock fracture...

... Abstract Characteristics of stress evolution of "roof-coal" structure body lose stability process under force and rock burst preparation is analyzed by comparative test. Catastrophe theory is used to analysis instability mechanism and the multi-field stress control for rock burst prevention...

... simple parameter measurements to more complex pattern recognition (Eberhardt, 1998). The characteristics of an acoustic event may also be used to approximate the release of kinetic energy through the AE event. The true energy is directly proportional to the area under the acoustic emission waveform which...

... rock masses named inlaid cataclastic structure in situ. These cataclastic structure rock masses were discreted in situ, and differentiated with fracture zone by tectonic process or displacement. The inlaid cataclastic structure rock mass in situ had some characteristics: with quasi integrality; low...

... engineering property under the natural condition, but for the rock with good mechanics strength characteristic, the improved effort is not very good. However, two test indicators are all satisfied with the analytical requirement. Therefore, this method is effective for grouting quality detection of rock? Key...

... Reservoir Characterization classification longitudial wave velocity wave velocity structural geology Engineering rockmass nuclear power plant sandstone andesite basalt characteristic Upstream Oil & Gas weathered degree weathered tuff sandstone dynamic parameter tuff sandstone...

... on a modern press, MTS 816 Rock Test System, purchased by VSB-Technical University of Ostrava. Whereas in the past, especially stress-strain and energy characteristics in the course of dynamic (cyclic) loading were observed on this test system, recently research has focused mainly on the observation...

... characteristic neuron algorithm blast result ISRM-Sponsored International Symposium on Rock Mechanics: Rock Characterisation, Modelling and Engineering Design Methods 1 INTRODUCTION Drilling and blasting (DAB) is one of oldest methods for rock excavation in underground and surface structure. This method...