"In order to deal effectively with reactive clays, a
drilling contractor must be able to identify reactive soil conditions,
understand how and why clay reacts the way it does, and know how to modify the
behavior of reactive soils."
Last month, we talked about friction loss due to pressure drop, with a look at the factors that contribute to friction loss – flow velocity, pipe size, length of pipe,
It has been stated that western Pennsylvania holds the largest-known deposits of clean-burning natural gas in the world. Local landowners are benefiting, and the state’s economy is growing its tax base – all the while supplying clean energy for our country.
The 2010 Conference & Expo of the International Ground Source Heat Pump Association was held Oct. 27-28 in Denver. The show reflected the industry’s growth with an impressive depth and breadth of educational offerings.
California’s State Route 1 is one of the most scenic routes in the world. However, the Big Sur coastline along this highway also is geologically active and unstable. Broken and weak rocks are covered with eroded soils that are highly prone to landslides. As a result of ground water, surface water infiltration, erosion and storms, this area – and particularly Pitkins Curve – has been in constant need of repairs since 1937. Extensive studies revealed that landslides and resulting highway damage would continue to occur indefinitely without a comprehensive solution. Therefore, Caltrans determined that the safest and most cost-effective solution would be to bridge Pitkins Curve, and build a rock shed at Rainrocks, a neighboring area of roadway instability. Golden State Bridge Inc., based in Martinez, Calif., won the $29.4-million contract, and has been on the job since December 2009.
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