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GEO-INSTITUTE TECHNICAL COMMITTEE ON
GEOTECHNICS OF SOIL EROSION
Soil erosion is a very important topic, where the geotechnical engineer can and will
play an increasingly important role. There are 600,000 bridges in the USA, 500,000 of which are over rivers. Over 20,000 of these 500,000 bridges
have been declared scour critical (calculated scour depth is deeper than the foundation depth under the design flood) by
the Federal Highway Administration. 1000 bridges have collapsed between 1961 and 1991 with associated deaths in the USA
and scour was responsible for 60% of those failures. The USA yearly budget for flood repair on the federal highway system
was over 50$M per year in 1995. This is a problem in nearly all countries with Japan (railroads), New Zealand (highways),
UK (railroads), and the USA (highways), among the those with the most problems. At the same time, solutions to the problem of
scour have been lacking proper consideration for the soil component. This greatly
limits their applicability. There is a growing movement towards involving the geotechnical engineer in scour studies
and the GI Committee on Geotechnics of Soil Erosion aims to guide that effort and help in achieving quality
and uniform results nationwide.
Our country faces many problems related to soil erosion. They are political, economic and engineering related.
We can help in the engineering arena by:
- Promoting the sharing of knowledge on engineering research and practice among the erosion-advanced organizations (academia, government, private firms)
and with others interested in the topic (regional workshops, short courses, web pages).
- Increasing the exchange of national and international research progress (conferences).
- Improving and/or developing global guidelines (reports, web based documents).
Mission of the Committee
The topics covered by this committee shall be
the geotechnical engineering aspects of the erosion of soils including the
following examples:
- Erosion at bridges and dams (scour),
- Meander migration and other riverbed evolutions
- Erosion at inlets including tidal problems
- Piping of dams
- Erosion of tailing dams
- Slope Erosion
- Erosion near platforms and pipelines
- Beach, sea cliff, lake bluff, river bank erosion
- Erosion of highways and other embankments
- Sediment loads in water
For each topic, there are
three aspects
- prediction
- prevention
- monitoring
On the fundamental side,
each one of the topics above has three components
Please send your questions, comments or request for additional information to:
Prof. Jean-Louis Briaud
Department of Civil Engineering
Texas A&M University
3136 TAMU
College Station, TX 77843-3136 Telephone: (979) 845-4414 Email:
jbriaud@tamu.edu
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