... of the Ryukyus Japan ABSTRACT The author has been involved in the stress state of earth's crust and analyzed the stresses through analytical solutions and finite element methods. For practical applications, he has developed various techniques for inferring the stress state in the earth's crust through...

...7th International Symposium on ln-5itu Rock Stress May 10-12, 2016, Tampere, Finland Johansson & Raasakka (eds) ISBN 978-951-758-606-1 ISSN 0356-9403 A RECENTLY RESEARCH OF THE STRESS STATE OF SOUTHEAST TIBET PLATEAU BY HYDRAULIC FRACTURING METHODS Hu Xiuhong (huxh04@mail.iggcas.ac.cn) Guo Qiliang...

... nuclear fuel in Finland, the definition of the in situ stress state, particularly at deposition depth, is a vital element to achieving this. Stress-geology interaction modelling work reported in Valli et al. (2011) was updated to support on-going Posiva's Olkiluoto Spalling Experiment (POSE) back...

... Abstract In-situ stress state is a fundamental and important parameter in geoscience and geoengineering fields. To obtain a data set of current in-situ stress in a scientific drilling project carried out by Geological Survey of Japan (GSJ), National Institute of Advanced Industrial Science...

.... It yields a first rough estimation in the whole reservoir by a simple interpolation which is not in equilibrium with the external forces and boundary conditions. From this rough stress field, the inversion aims at finding a physically acceptable stress state (i.e.: in equilibrium with the external forces...

...7th lntematlonal Symposium on ln-5Hu Rock Stress May 10-12, 2016, Tampere, Finland Johansson & Raasakka (ads) ISBN 978-951-758-606-1 ISSN 0356-9403 CONSTRAINING STRESS STATES IN NANKAI ACCRETIONARY WEDGE, SOUTHWEST JAPAN, TO 2 KM BELOW SEAFLOOR Chandong Chang (cchang@cnu.ac.kr) Chungnam National...

... large earthquake prior to the Mw9.0 mainshock, and it might indicate that the background stress had been accumulating and a series of progressive failure processes happened prior to the mainshock. The stress state did not change in the places where are distant away from the rupture center of the Mw9.0...

... for c.a. 120 years. During this time the rock reinforcement structures are vulnerable to failures. Therefore the rock reinforcement solution needs to be able to withstand the increased stress state due to the thermal output from final deposition of nuclear waste containers. Reports describing the thermal...

... ore's price. The modified deep of the pit will arrive to 750m at the elevation of −440 m. The stress states, engineering geological conditions and hydrogeology conditions will be different form current environment. So the exploration should be carried out to obtain the factors which are effective...

... ABSTRACT: The correct knowledge of in-situ stress state is necessary for mining design, construction and excavation, especially in 6 aspects. Stress relief by overcoring technique with hollow inclusion strain cell is mainly used for in-situ stress measurement in Chinese mines, during which...

... for stoping face and extend space and time. reservoir simulation stress state Computation EME characteristic nie baisheng outburst metals & mining numerical simulation coal seam stress distribution Reservoir Characterization gas outburst deformation coal China University roadway...

... projects. This study concerns the rock-burst problems encountered in the deepest and larger of the Carrara Marble underground quarry: the Carlone quarry. reservoir geomechanics strength stress state Carlone quarry Upstream Oil & Gas quarry MPa Reservoir Characterization rockburst...

... fracture borehole San Andreas stress field Upstream Oil & Gas constrain borehole failure Hmax breakout Magnitude Wellbore Design stress magnitude stress state perturbation principal stress determination drilling-induced tensile fracture Rock Stress and Earthquakes Xie (ed.) © 2010...

... directions and stress ratios for fault slip data obtained from fault plane solution for aftershocks of Bam Earthquake in Iran, in 2003. Several stress state possibilities are found with close values of object function. To overcome this problem, a method is introduced in which the stress states with less than...

... ABSTRACT: Present-day stress tensor is characterized in southeastern Korean Peninsula using shallow geotechnical in situ stress data to understand the regional contemporary stress state and its relationship to the population of faults. The in situ stress data show an ENE-WSW to NE-SW maximum...

... relation situ stress state maximum horizontal principal stress maximum principal stress stress state stress field vertical stress Rock Stress and Earthquakes Xie (ed.) © 2010 Taylor & Francis Group, London, ISBN 978-0-415-60165-8 The in situ stress state of Kailuan mining area J. Han Kailuan...

... in the lab or in the field. 1 INTRODUCTION In a paper by Corthésy and Leite (2008), core discing and damage mechanisms were simulated using Flac2D with an elasto-plastic cohesion softening friction hardening model, which showed that for a given stress state, discing or core damage could involve tensile...

... Modeling & Simulation Upstream Oil & Gas variability discontinuity perturbation Reservoir Characterization inhomogeneity borehole Hudson rock mass tunnel situ rock stress principal stress stress measurement Magnitude stress state excavation stress variation anisotropy Rock...

... elasticity stress state sensor stress change Rock Stress and Earthquakes Xie (ed.) © 2010 Taylor & Francis Group, London, ISBN 978-0-415-60165-8 Cross-sectional Borehole Deformation Method (CBDM) for measurement of rock stress change Y. Obara, T. Shin, T. Yoshinaga & K. Sugawara Kumamoto University...

... ABSTRACT: A model of the tectonic stress state of Longmenshan Faults and adjacent area including direction and magnitude is derived from the spatial and temporal distribution of seismicity before and after Wenchuan Ms 8.0 earthquake. This technique utilizes the assessment of spatial...