GeoTrends Blog

Thoughts on scientific and technological trends in geomechanics and geotechnical and foundation engineering

Saturday, June 21, 2008

Levee Failures Continue

There is a bigger picture: the deterioration of U.S. infrastructure, an investment of past generations that loses value everyday. Lost value comes from its decreased capacity to allow individuals and organizations to do their work or live their lives (which includes protecting them from loss and allow them to generate income) but also from the fact that it will cost increasingly more dollars to rehabilitate or rebuid the infrastructure. This now from the New York Times:

CANTON, Mo. — The levees along the Mississippi River offer a patchwork of unpredictable protections. Some are tall and earthen, others aging and sandy, and many along its tributaries uncataloged by federal officials.

The levees are owned and maintained by all sorts of towns, agencies, even individual farmers, making the work in Iowa, Illinois and Missouri last week of gaming the flood — calculating where water levels would exceed the capacity of the protective walls — especially agonizing.

After the last devastating flood in the Midwest 15 years ago, a committee of experts commissioned by the Clinton administration issued a 272-page report that recommended a more uniform approach to managing rising waters along the Mississippi and its tributaries, including giving the principal responsibility for many of the levees to the Army Corps of Engineers.
But the committee chairman, Gerald E. Galloway Jr., a former brigadier general with the Corps of Engineers, said in an interview that few broad changes were made once the floodwaters of 1993 receded and were forgotten.

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Wednesday, May 28, 2008

Sixth International Conference on Case Histories in Geotechnical Engineering

This conference is taking place in August. The general report for the Session on Foundations can be downloaded from here.

Thursday, May 15, 2008

Geotechnique is publishing a 60-year Jubilee issue. Geotechnique published for the first time in 1948, and the commemorative issue has papers that cover the contributions made by the journal to various subdisplines of geotechnical engineering. The foundation engineering paper addresses contributions to shallow and deep foundations and offshore foundations.

Saturday, February 09, 2008

New NAE Members:

Amadei, Bernard
Armstrong, Robert C.

Arvind

Assanis, Dennis N.

Austin, Wanda M.

Baughman, Ray Henry

Bhattacharya, Pallab K.

Blumberg, Paul N.

Brown, Gerald G.

Bruschi, Howard J.

Calabrese, Gary S.

Chang, Mau-Chung Frank

Cheng, Stephen Z.D.

Cundall, Peter A.

Dodds Jr., Robert H.

Dwork, Cynthia
Dzombak, David A.

Fiorato, Anthony E.

Fogarty, Thomas J.

Foley, James D.

Fu, Lee-Lueng
Grest, Gary Stephen

Grosz, Barbara J.

Haderle, Donald J.

Harrison, J. Michael

Hudson, John L.

Hunkapiller, Michael W.

Iglesia, Enrique
Kleinberg, Jon M.

Kurtz, Anthony David

Lin, Burn-Jeng

Lipo, Thomas Anthony

Livanos, Alexis C.

Lockett, Michael J.

Luenberger, David G.

Malkin, Stephen
Marr Jr., W. Allen

Martin, John C.

Miller, James A.

Mills, David L.

Nayar, Shree K.

Nikias, Chrysostomos L. 'Max'

O'Neill, Malcolm R.

Raghavan, Prabhakar
Rahmat-Samii, Yahya
Raibert, Marc
Rath, Bhakta B.

Richards-Kortum, Rebecca Rae

Robinson, Stephen M.

Rokhlin, Vladimir
Russell, Thomas P.

Sawyer, Robert F.

Sethian, James A.

Siegel, Paul H.

Singh, R. Paul

Sinha, Kumares C.

Sites, Richard L.

Spaepen, Frans
Suo, Zhigang
Tirrell, David A.

Walt, David R.

Weiner, Andrew Marc

Yeh, William W-G.

Yoon, Roe-Hoan
Yortsos, Yannis C.


New NAE Foreign Associates:


Akasaki, Isamu
Dowling, Ann P.

Healy, Thomas W.

Inoue, Akihisa
Leontiev, Alexander I.

Milner, Arthur John Robin Gorell

Ramm, Ekkehard
van Santen, Rutger Anthony

Watanabe, Tadashi

Sunday, January 13, 2008

Despite repeated assurances that it had Big Dig leaks under control, the Turnpike Authority has allowed the number of leaks to explode in the last two years and has been forced to launch a fresh effort to plug hundreds of trouble spots, according to an analysis of Big Dig records.

A massive effort by Big Dig contractor Bechtel/Parsons Brinckerhoff reduced the number of the most serious leaks near the tunnel roof from more than 800 in March 2005 to just three eight months later, according to Bechtel/Parsons Brinckerhoff records posted on the turnpike's website. But the state sharply curtailed efforts to seal leaks when it took over maintenance in 2006, and the number of serious leaks going unchecked rose to 237 last month, according to interviews and turnpike records.

Link

Sunday, May 06, 2007

Monday, April 23, 2007