Title: Shotcrete for Ground Support Past Experience of EDF

Author(s): R. Cordel

Publication: Symposium Paper

Volume: 54

Issue:

Appears on pages(s): 373-398

Keywords:

DOI: 10.14359/18042

Date: 1/1/1977

Abstract:
Since EDF was founded in 1946, it has achieved a great number of hydroelectric plants, leading it to dig several million cubic meters of underground excavations for the intakes, the power stations and auxiliaries, plus hundreds of kilometers of head race tunnels. Rather often, these underground structures, standing in poor ground, had to receive a support. Let us note that since 1950 there have been a few applications of gunite. In fact, it was not exactly a support but rather a rock protection against weathering due to air and water.