... Abstract Parking facility P-Hamppi under central Tam pare has now been in use for few years. During completion, it was the first large span cavern in Tampers city centre with a span of 32 m and a volume for 972 cars. Due to the demanding conditions i.e. large cavern close to the ground surface...

... ABSTRACT: The equation of Mohr-Coulomb salt dilation criterion has been developed obtained from the triaxial compression and extension laboratory tests of bedded salt. Numerical stimulations of the natural gas storage caverns in bedded salt formation are carried out by FLAC3D to evaluate...

... in the vicinity of existing underground caverns, which have to be adequately considered in order to estimate the natural state of stress. 1 INTRODUCTION Release of the state of stress is often the most relevant action during the excavation of an underground work, and it can affect the location and orientation...

...Rock Stress and Earthquakes Xie (ed.) © 2010 Taylor & Francis Group, London, ISBN 978-0-415-60165-8 Incoherent hydro-frac results & its implications in design of crude oil storage caverns M.R. Saharan & A. Sinha Central Institute of Mining & Fuel Research (CIMFR), India K. Srinivasan, V.V. Nagada...

...Rock Stress and Earthquakes Xie (ed.) © 2010 Taylor & Francis Group, London, ISBN 978-0-415-60165-8 Influence of high horizontal stress regime on the shape of LPG caverns A case study M.R. Saharan & A. Sinha Central Institute of Mining & Fuel Research (CIMFR), India H.S. Mitri McGill University...

... ABSTRACT: Stability and potential failure mode of tunnels and underground rock caverns is directly related to the magnitude and orientation of the in-situ rock stress. In some cases, the high horizontal in-situ stress is essential in maintaining cavern stability, whilst in other cases the high...

... strain energy, resource exploitation and tunnel excavation process, the secondary stress field formation due to internal stress adjustments in rock mass, generated stress concentration near the tunnel wall. Upstream Oil & Gas hard rock underground rock cavern geostress structural geology...

... is studied using numerical method. The results show that the actual initial vertical stresses are usually 2–5 times of the gravitational stresses for some zones. The next part of this paper shows the remarkably different plastic zones distributions after excavating a cavern under different slope angles...

... rock mechanics parameters of rock mass around the high pressure cavern, and utilizes the data of stress measurements, together with numerical simulation and regression analysis to synthetically analyze the ground stress field at engineering sites. The results show that the direction of maximum...

... ABSTRACT: The salt cavern gas storage is attracting more and more attentions in the world wide natural gas storage for its special advantages. And also it is a complex and systematic project to build a certain shape salt cavern in formations by water solution. According to the mechanical...

... ABSTRACT: For large underground cavern established in bank slope with ‘V’ shape valley, estimation of in-situ rock stress and failure of wall rock is very signification, not only for prevention from potential failure, large deformation, and instability of caverns, but also for the optimizing...