Accession Number : ADA262963
Title : The Seismic Design of Waterfront Retaining Structures
Descriptive Note : Final rept.
Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS INFORMATION TECHNOLOGY LAB
Personal Author(s) : Ebeling, Robert M ; Morrison, Ernest E , Jr
Report Date : Nov 1992
Pagination or Media Count : 332
Abstract : This technical report deals with the soil mechanics aspects of the design of waterfront retaining structures built to withstand the effects of earthquake loadings. It addresses the stability and movement of gravity retaining walls and anchored sheet pile walls, and the dynamic forces against the walls of drydocks and U-frame locks. The effects of wall displacements, submergence, liquefaction potential, and excess pore water pressures, as well as inertial and hydrodynamic forces, are incorporated in the design procedures. Several new computational procedures are described in this report. The procedures used to calculate the dynamic earth pressures acting on retaining structures consider the magnitude of wall displacements. For example, dynamic active earth pressures are computed for walls that retain yielding backfills, i. e., backfills that undergo sufficient displacements during seismic events to mobilize fully the shear resistance of the soil. For smaller wall movements, the shear resistance of the soil is not fully mobilized and the dynamic earth pressures acting on those walls are greater because the soil comprising the backfill does not yield, i.e., a nonyielding backfill. Procedures for incorporating the effects of submergence within the earth pressure computations, including consideration of excess pore water pressures, are described.
Descriptors : *SOIL MECHANICS , *SOIL STABILIZATION , *SOIL STRUCTURE INTERACTIONS , *EARTHQUAKE ENGINEERING , *BACKFILLS , *DAMS , *EARTHQUAKE RESISTANT STRUCTURES , *WATERFRONT STRUCTURES , MECHANICAL PROPERTIES , STABILITY , COMPUTATIONS , COMPUTER AIDED DESIGN , WATER , RESISTANCE , FINITE ELEMENT ANALYSIS , LOADS(FORCES) , DAMAGE ASSESSMENT , DISPLACEMENT , STRUCTURES , CONCRETE , SOILS , PRESSURE , YIELD , WALLS , DYNAMIC LOADS , FRAMES , SOIL DYNAMICS , EARTHQUAKES , HYDRAULICS , DESIGN CRITERIA , HYDRODYNAMICS , PORE PRESSURE , LIQUEFACTION , SOIL SETTLEMENT , PILE STRUCTURES , ANCHORS(STRUCTURAL) , DRYDOCKS , HYDROSTATIC PRESSURE , COHESIONLESS SOILS
Subject Categories : Soil Mechanics
Structural Engineering and Building Technology
Distribution Statement : APPROVED FOR PUBLIC RELEASE