Accession Number : AD0675703

Title :   EXPERIENCES WITH GROUND WATER ON CONSTRUCTION.

Descriptive Note : Technical paper,

Corporate Author : NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF BUILDING RESEARCH

Personal Author(s) : Legget,Robert F.

Report Date : JUL 1962

Pagination or Media Count : 20

Abstract : Local ground-water conditions are generally disrupted by construction operations even when accepted methods of handling ground water are used. In most cases natural conditions are restored after a structure is completed, but some engineering projects necessarily cause permanent change in previously existing ground-water conditions. Some unusual Canadian examples include the 'control' of ground water at Steep Rock Iron Mines by trapping it before it reached the drained lake bed in order to obviate erosion of the lake bed deposits; the La Tuque hydroelectric development on the St. Maurice River where seepage around a large concrete dam showed itself in a small natural lake, the level of which had to be controlled by pumping; and the Aguasabon hydroelectric development on the shores of Lake Superior, where a 'perched reservoir' was used as the main forebay in an area of previous sand and gravel, glacial silt forming the lining to a natural basin in this pervious material. (Author)

Descriptors :   (*CONSTRUCTION, DRAINAGE), HYDRODYNAMICS, WATER, DAMS, HYDROLOGY, UNDERGROUND STRUCTURES, TERRAIN, EROSION, SOIL MECHANICS, SOILS, ROADS, CANADA

Subject Categories : Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE