| |
| |
Caption: SWE - Proceedings of the First International Conference of Women Engineers and Scientists
This is a reduced-resolution page image for fast online browsing.
EXTRACTED TEXT FROM PAGE:
EL INFIERNILLO HYDROELECTRIC POWER PLANT by Mrs. Angelina Perez Lopez Comision Federal de Electricidad (CFE) Estados Unidos Mexicanos The Comision Federal de Electricidad (CFE), an agency of the Government of Mexico, has developed an intensive program for the electrification of the Country by increasing the total installed capacity, both thermic and hydro, from 2,560 MW in 1958 to 5,560 MW in 1964. In line with this program, the CFE has built a rock-fill dam 148 meters high on the Balsas River at the El Infiernillo site, State of Michoacan. This dam will have a total capacity of 12,000 million cubic meters, power generation being the main purpose of its construction. This hydroelectric plant is the biggest in the Country, and rates among the most important in the world due to several features, such as its large reservoir, the dimensions of both its dam and its powerhouse, and the power output of its units. GEOLOGY The rock in the zone for all structures of the plant is of very good quality. It is formed by a tertiary conglomerate heated and silicified by intrusion of a dioritic body with planes of fracture showing in localized zones having a general North-South bearing. Dam The dam is of the rockfill type and has a relatively thin impervious core made of compacted clay. Sand filters and gravel transition zones are adjacent to this core. The main body of the dam is composed of two rockfill shoulders. Each is divided into two zones, one of compacted material and the outer portion built in dumped layers two meters thick. The volume of the dam is 5.7 million cubic meters, 4.7 million of which are rockfill material. At the time work was begun, it was the world's fourth in height among existing dams of the same type. Its principal dimensions are: Crown elevation Maximum.height Width at the base Height of upstream cofferdam Height of downstream cofferdam Width of crown Length of the crest Total volume 180.00 m. 148.00 m. 608.15 m. 60.00 m. 58.00 m. 10.00 m. 360.00 m. 5,700.00 m3. A-7
| |
