... Engineering Laboratory,that supervises the operation of all its plants. The chronological records of eight power plants (Barra Bonita, Ibitinga, Promissao Jupia,Nova Avanhandava, Água Vermelha, Jurumirim and SaIto Grande)were investigated, totalling 752 piezometers and water level gauges. A seasonal cyclic...

...,located on the river Tamega, a tributary of the Douro,. is one.of the most important hydroelec tric developments under construction in Portugal for the last years. The first controlled filling of the reservoir has taken place this very year. A 69 m high gravity dam and an underground power plant, where...

... control routines through all phases of the concreting and grouting operations are vital for the successful completion of a high-pressure plug. The author has recently been responsible for design and construction control for this new type of high-pressure plugs at Eikelandsosen power plant (450 m head...

... ABSTRACT: This paper studies the problems of stability and supports of an underground power plant which consists of a qroup of big caverns. The power plant is designed to be located in limestone, where three faults and two clay partings pass through. Due to the complex conditions of rocks...

... been carried out by The Foundation for Scientific and Industrial Research of the Norwegian Technical University, Trondheim, Norway (SINTEF). reservoir geomechanics orientation minimum principal stress access tunnel Reservoir Characterization power plant unlined high pressure shaft...

... Summary The Tokyo Electric Power Co., Inc. is now in the process of excavating a large cavern--33.5 m wide, 51 m high, and 160 m long--to set a 1,050 MW pumped-storage power plant 400 m under the ground surface. The cross section of the cavern is horseshoe-shaped, the first time...

... of the hydroelectric and pumped storage power plants has become considerably widespread, ~ainly in the rock. The paper presents a brief description of a nUmber of existing, under construction and planned underground power plants in the USSR. The .sizes and significance of such structures demand a comple~ analysis...

... SUMMARY: One efficient source of peak-load power in a power system is a hydraulic pumped-storage power plant. An especially promising innovation for regions with flat terrain are underground plants of this type. They are usually designed with the power house and lower reservoir arranged...

... particle velocity cavern stability Earthquake Reservoir Characterization power plant cavern pumped-storage power plant stress increment relation strength seismic wave stability failure envelope increment Upstream Oil & Gas aseismic design dynamic stress stability number...

...-electrical power plants are constructed as high pressure plants. These plants are characterized by the power station being situated in the valley close to the slope and with a pressure shaft and a headrace tunnel to the reservoir. The conventional high pressure power plants were constructed with steel lined...

... SUMMARY: The Mauranger Hydro-Electric Power Plant in Western Norway utilizes a 455 metre static head unlined pressure shaft. The paper describes the investigations performed and the criteria applied for the design of the shaft. ZUSAMMENFASSUNG: Die Wasserkraftanlage Mauranger in West...

... m 3 /s (à 10°C, 1 bar) et 3.3'' 10 −1 m3/s (à 10°C, 1 bar). En plus l''article decrit brievement la chambre à coussin d''air de Kvilldal, de dimensions 120 000 m 3 , en operation depuis decembre 1981. INTRODUCTION Developments in tunneling and power plant design have led to the use of deep...

... the 1960 - s the Supreme Military Command in Sweden has recommended that nuclear power plants be placed in rock caverns. COMPONENTS OF AN UNDERGROUND CHAIN The basic idea behind nuclear power production in an underground chain is to locate the individual components in rock caverns and connect them...