... Abstract A new underground powerhouse that combines a run-of river scheme with a pumped storage scheme is planned in course of the Renewal of Forbach HPP in Germany. The powerhouse cavern is designed to have a maximum span and height of 18.9 and 42 m, and a total length of 123 m. The rock mass...

... Abstract Underground storage in salt caverns is a preferred method for the intermediate storage of natural gas to cover seasonal fluctuation in consumption and commercial gas storage. The prove of the stability and tightness of the storage required for safe operation is continuously adapted...

... Abstract Over the last decade, large rock caverns have been developed for storing vast volumes of hydrocarbons and in particular crude oil. In this context, large rock caverns have light support made of grouted steel or fibreglass rock bolts. Reinforcing cables are strictly prohibited to avoid...

... Abstract The global demand onto large volumes of hydrocarbons to be stored in rock caverns lead to the development of very large caverns. The larger the cavern sections, the larger the potentially unstable blocks and the risk of megawedges. The hydrodynamic containment of hydrocarbons...

... Abstract During the operation of gas storage caverns in rock salt mass the internal pressure changes during filling and withdrawal phases. Additionally temperature variations occur versus operation time. During withdrawal phases the temperature decreases which can lead to stress states...

... Abstract The first underground rock caverns for hydrocarbon storage in South-East Asia has recently been completed in Singapore. The storage capacity of 5 twin-caverns is 1.47 million cubic meters with total volume of rock excavation is about 3 million cubic meters. Geologically...

... ABSTRACT: Caverns are underground superstructures which their popularity has been increased due to their various and strategic applications, numerous advantages such as low initial and operating costs, and free form designing. The case study in this paper is done on pumped storage cavern...

... ABSTRACT: Since several years, the demand for the storage of gas in rock salt caverns has changed from seasonal to high cycling operation. The new operation mode requires relatively fast pressure change rates in the cavern which in turn leads to temperature changes in the gas. The consequences...

... was constructed by Japan Oil Gas and Metals National Corporation (JOGMEC), is located in Okayama Prefecture (Fig. 1, completed in March 2013) and it was planned to store LPG (400,000 tons) in underground rock cavern. The specifications of Kurashiki underground storage facility shown in Table 1. In Kurashiki...

... ABSTRACT: Japanese island arcs are located at the western Pacific arc-trench system, the fractured characteristic is frequently observed in rock and the discrete fracture network exists between the water curtain and the storage cavern is concerned an impact factor on the air-tightness...

... consisting of a separate powerhouse cavern (PHC) and a transformer cavern (TC). The PHC will house 6 pelton turbine / motor-generator / pump units. The dimensions of the cavern are 73.8 m in height, 29 m in width and 177 m in length. Thus, it would be the highest cavern in Europe. The determination of input...

... ABSTRACT: The geometrical parameters of 639 discontinuities that surveyed in powerhouse cavern of Rodbar Lorestan pumped storage power plant project have been investigated by scanline and areal sampling methods. As regards the processing and correction of bias types, one bedding and three...

... ABSTRACT: A pilot scale research was carried out to verify the feasibility of compressed air storage in lined rock cavern. Two caverns with a diameter of 6m were excavated at a depth of 100 m below the surface ground in a mine. This paper presents assessment technologies of geomechanical...

... ABSTRACT: Underground works and in particular tunnels and caverns require characterising the rock mass, say matrix and discontinuities, in which the excavation takes place. Characterising the matrix is generally quite easy but the characterisation of the discontinuities and in particular...

... ABSTRACT: Underground power houses of hydropower plants and caverns for storage of oil, gas or other substances are often considered similar, although quite important differences exist both in design and construction. By comparing their design and construction methods; the authors (each one...

... ABSTRACT: The pumped storage plant Obervermuntwerk II with an underground power house cavern is located in the western part of Austria. Since May 2014, the works on the pre-cuts and excavations of the tunnels and the machinery and transformer cavern are in progress. In the pre-designing phase...

... Abstract Probabilistic wedge stability analyses of a cavern are carried out considering two sets of joints J1 and J2 as random parameters with uncertain dip direction and strength parameters. Probabilistic numerical models are constructed employing Monte Carlo and four different point estimate...

... equation of state deviatoric strain characteristic length fluid modeling renewable energy displacement criteria Reservoir Characterization plastic deviatoric strain cavern foliation layer Upstream Oil & Gas prediction strength laboratory data plane excavation deformation...

... will be constructed under extensive existing underground infrastructure. There are several parking caverns, service and sewage tunnels and an existing metro station in the immediate vicinity of the planned underground downtown railway station. The station will be connected directly into several existing underground...

...Rock Engineering and Rock Mechanics: Structures in and on Rock Masses Alejano, Perucho, Olalla & Jiménez (Eds) © 2014 Taylor & Francis Group, London, 978-1-138-00149-7 Principles and methodologies for the design of hydroelectric large underground caverns R. Plassart & F. Laigle EDF, Centre d...