Dam and levee remediation has become more prevalent since the
start of the twenty-first century. Given the vastness and
complexity of the infrastructures involved, keeping up with
maintenance needs is very difficult. Major surges in repair are
usually triggered by nature's wake-up calls, such as hurricanes,
floods, and earthquakes. The challenge has been to develop methods
that ensure safe, effective, reliable, and robust solutions for
current and future remediation issues. Specialty Construction
Techniques for Dam and Levee Remediation presents the state of
practice in North American dam and levee remediation as it relates
to the use of specialty geotechnical construction techniques, such
as anchors, grouting, cutoff (diaphragm) walls, and deep
mixing.
The book focuses on the actual construction processes,
describing design and performance aspects of remediation where
appropriate. Chapters deal with the application of drilling and
grouting methods, methods to install mix-in-place (category 2)
cutoff structures, excavated and backfilled trenches (category 1),
composite cutoff walls, and stabilization using prestressed rock
anchors. The book also provides a comprehensive guide to dam and
levee instrumentation, covering planning, operating principles,
data management, staffing, and automation. As an educational and
salutary example of ineffective efforts, the final chapter presents
a case history of a series of remediations performed on a single
project, which ultimately proved unsuccessful.
A wide range of methods has been developed in response to the
challenges that arise in the dam and levee remediation arena and
the need for a competitive edge. These new methods are designed and
monitored using state-of-the-art techniques, giving rise to the
emergence of new intensity and initiative in this field. This book
captures this transformation by examining the theory and practice
of contemporary remedial techniques, using recent U.S. case
histories to provide knowledge and inspiration to readers, both in
North America and around the world.
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