..., Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, China Department of Civil Engineering, Monash University, Clayton, VIC, Australia ABSTRACT: Plate impact experiments have been conducted on one fine-grained meta- morphic rock, Carrara marble and one coarse-grained igneous rock, South...

.... In addition, a methodology has been developed to examine, using a variety of time resolved and post experimental diagnostics, the fragmentation of small geological samples under explosive loading. Results from a variety of experiments will be presented, along with a discussion of future directions...

... the crack. The conclusion of these experiments can provide a reference for the designer. 1 INTRODUCTION Many tunnels have been damaged noticeably in earthquakes in last two decades including 1999 Chi-Chi, Taiwan earthquake (Wang 2001) and 2008 Wenchuan earthquake (Wang 2013). The response of tunnel lining...

... ABSTRACT: Hopkinson bundle bars device is developed on the Split Hopkinson Pressure Bar (SHPB) system to investigate the dynamic slip characteristics of cement joint under compression-shear combined loading. The experimental configuration of one-bar/three-bar incidence and three-bar...

... is improved under coupled dynamic-static load. A new model for estimating the indentation fragmentation process of shale is developed. The damage and failure behaviors of rocks are simulated by using the explicit contact finite element method. According to the macro indentation experiment, a simulation model...

... in the rock, where the difference in the intermediate and minimum stress can play a more significant role in the subsequent failure processes (Kwas- niewski et al. 2013, Young et al. 2013, Nasseri et al. 2014). 2 EXPERIMENTAL PROCEDURE: TRUE-TRIAXIAL TESTING This paper builds on an initial set of experiments...

.... In order to investigate fracture behaviour of sandy mudstone subjected to dynamic loading, both experiments and numerical simulations are performed at different impact velocities, respectively. Experiments are carried out with the Split Hopkinson Pressure Bar (SHPB), and numerical simulation is conducted...

... of magnitude in other setting, for example in mining, when alterations of stress conditions are relatively small. The present paper describes the results of laboratory experiments which demonstrate the existence of another mechanism of occurrence of various slip modes not described before. We found that small...

... hydraulic fracturing Thickness international journal type specimen Engineering Rock mechanics homogeneity Upstream Oil & Gas printing experiment vertical crack preset crack specimen crack coalescence preparation rock engineering printing material crack path shpb system...

... ABSTRACT: This work is devoted to the investigation of spatio-temporal strain localizations under uniaxial quasistatic compression and tension of rocks with the use of the digital image correlation method. Conducted experiments allow us to establish specific forms of strain localization under...

..., hydropower and other engineering fields, which has become the main supporting method on geotechnical engineering. sleeve pipe experiment mechanical property Reservoir Characterization strength diameter metals & mining resistance specimen constant resistance Upstream Oil & Gas rock...