Accession Number : ADA317283

Title :   Case Histories of Earth Pressure-Induced Cracking of Locks.

Descriptive Note : Final rept.,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS INFORMATION TECHNOLOG Y LAB

Personal Author(s) : Ebeling, Robert M. ; Patev, Robert C. ; Mosher, Reed L.

PDF Url : ADA317283

Report Date : SEP 1996

Pagination or Media Count : 68

Abstract : The US Army Corps of Engineers is responsible for designing and maintaining a large number of navigation and flood-control structures. Massive unreinforced concrete gravity walls serve many uses at many of these hydraulic structures. These concrete gravity structures are used as lock walls, are typically founded on rock, and are subjected to large differential water and earth loadings. These structures must maintain their internal structural integrity and be stable with respect to sliding and overturning. However, some rock-founded, unreinforced, concrete gravity lock walls have experienced cracking as a result of earth loadings in excess of those anticipated during structural design. This report summarizes the existing information on four locks which have experienced cracking within the unreinforced lock walls. A fifth lock which was remediated to avoid cracking is also discussed. All five lock walls retain backfill. Backfill loads were found to be the primary type of loading on the walls.

Descriptors :   *CRACKS, *LOCKS(WATERWAYS), WATER, STRUCTURES, CONCRETE, CASE STUDIES, NAVIGATION, INTERNAL, WALLS, ARMY CORPS OF ENGINEERS, GRAVITY, EARTH(PLANET), HYDRAULIC EQUIPMENT, STRUCTURAL ENGINEERING, STRUCTURAL INTEGRITY.

Subject Categories : Hydrology, Limnology and Potamology

Distribution Statement : APPROVED FOR PUBLIC RELEASE