Exploration and Sampling Methods for Borrow Areas

摘要

This report discusses beach restoration as a means for mitigating severe coastalstorm damage such as beach erosion. An important element in beach restoration is the availability of suitable sand on a beachfront that is both suitable from a coastal engineering standpoint and stable. Improving the efficiency of preconstructing exploration and design techniques has become exceedingly important in management planning and control. This study examines the state of the art of various geotechnical and geological technologies such as seismic reflection or acoustic signals, used to foster effective and environmentally sound coastal project designs. The current state of knowledge regarding geological indicators of subaqueous, sandbearing formations is discussed. Existing technology in terms of geophysical equipment and application techniques for exploration programs to locate suitable borrow sources for beach filling are reviewed. Techniques for planning, design, and conduct of field exploration programs are recommended. The main elements of program planning and design are trackline survey layout, core site selection, scheduling of events, selection of equipment and personnel, and a cost analysis.