...Rock Characterisation, Modelling and Engineering Design Methods Feng, Hudson & Tan (Eds) © 2013 Taylor & Francis Group, London, ISBN 978-1-138-00057-5 Intelligent loop recognition of rock parameter for large underground hydraulic cavern Q. Jiang, J. Cui, X.T. Feng, D.F. Chen & X.J. Hao State Key...

... Abstract The characteristic of deep rock joints affects the mechanical behavior of rock mass in underground rock engineering, especially underground oil storage caverns. Borehole Television (BHTV) is used to investigate lithology and deep rock joints characteristic, which is dip direction...

... Abstract The stability of a large underground powerhouse in the Himalayas has been evaluated. This underground powerhouse cavern constitutes a major component of a Hydro Electric Project in Bhutan. It has experienced a number of instabilities during and after construction. Approximately 5...

.... The stress release process is realized using a numerical software UDEC, which is validated by the closed-form solution of a circular tunnel. The stability of a cavern in rockmass is analyzed based on the convergence-confinement method using UDEC. The displacement around the cavern is investigated...

... storage was built in Shantou. Since now, the study on undergound storages of the Chinese experts is just beginning. Zhiyin Wang discussed orthogonal experimen- tal design of numerical simulation for underground petroleum storage caverns; Yi Wang analysed the 3D fluid-mechanical coupling stability...

... Downstream Oil & Gas geotechnical performance coefficient Reservoir Characterization relation numerical simulation Upstream Oil & Gas cavern stability storage cavern pillar finite element analysis excavation groundwater inflow rock mass representative case natural gas...

... Abstract Structural geology (a branch of geology aiming at describing the structures – joints, faults, folds, etc. – at various scales) can be used in the field of rock mechanics and rock engineering, and particularly in underground engineering works (tunnelling and rock caverns) to gather...

... Abstract Rapid gas depressurization leads to gas cooling followed by slow gas warming when the cavern is kept idle. Gas temperature drop depends upon withdrawal rate and cavern size. Thermal tensile stresses, resulting from gas cooling, may generate fractures at the wall and roof of a salt...

... Abstract Loads condition on underground powerhouses operated in decades could be varied due to agerelated degradation of support members and surrounding rock, and underground water condition. It brings essential concern on the soundness of the underground caverns. This paper shows...

... wellbore integrity cyclic loading reservoir geomechanics strength rock salt surface subsidence Reservoir Characterization Upstream Oil & Gas strain-time curve Wellbore Design cavern specimen MPa loading GPa storage cavern cavern closure creep test viscoplasticity cyclic...

... operational pressurelimitsin beddedsalt deposits. These issues are the well- bottom tightness, general cavern tightness, cavern roof stability, and flow control. 1 INTRODUCTION Salt deposits can be classified into four types according totheirgeometricdispositionandgeological history: Sedimentary (bedded...

...ISRM-Sponsored International Symposium on Rock Mechanics: Rock Characterisation, Modelling and Engineering Design Methods Study on the Wall Rock Stability of Yantan Hydrologic Station s Underground Caverns by Using 3D Numerical Simulation Zhu Ji-liang 1,2 Chen Xian-ting 1 (1 Guangxi Electric...

... ABSTRACT The Japan Gas Association (JGA) has been studying technologies of an underground natural gas storage system, a Lined Rock Cavern (LRC) gas storage system called ANGAS (Advanced Natural GAs Storage). The purpose of the project is to develop a suitable LRC system for Japan...

...ISRM-Sponsored International Symposium on Rock Mechanics: Rock Characterisation, Modelling and Engineering Design Methods Creep deformation distinction analysis of gas storage cavern in bedded salt formation G.J. Wang, P. Liu, J.W. Yuan & L. Liu Hebei University of Technology, Tianjin K.M. Guo...

... Upstream Oil & Gas cavern surface stability reservoir geomechanics powerhouse cavern numerical simulation displacement Simulation underground cavern field measurement deformation deformation curve rock mass tunnel Reservoir Characterization excavation cavern cavern...

... water and two new fresh water service reservoirs. Cavern was excavated in sandstone and tuff to accommodate the new salt water reservoir in a twin-cell tunnel system. The cavern was constructed inside a sloping ground due to the need to find adequate rock cover. Starting at the portal, an about 30 m...

... Reservoir Characterization strength trollope jointed rock mass relation Indian Institute equivalent continuum model Upstream Oil & Gas Efficiency specimen jointed rock rock mass Ramamurthy reservoir geomechanics cavern Applicability excavation ISRM-Sponsored International...

... Underground Study (SPUN) 1990 Cavern PROject Study (CAPRO) 1990s Cavern Area Studies (CAS) 1991 Hong Kong Planning Standards and Guidelines : Chapter 11 Guidelines for Underground Rock Cavern 1992 GEOGUIDE 4 Guide to Cavern Engineering 1994 Guide to Fire Safety Design for Caverns At around the same time...

... ABSTRACT In January of 2007, seven people in a São Paulo street, four of them in a small bus, were suddenly sucked into falling soil and saprolite, from a street elevation about 20 m above a metro station cavern of 19 m span and 40 m length. Despite the evidence of four surrounding and one...

... Reservoir Characterization displacement unstable zone plane extensometer cavern spaced bedded rock mass reddish brown siltstone chainage 48 powerhouse cavern transformer cavern safety factor rock mass Upstream Oil & Gas criterion sidewall equivalent transversely upstream...