Drilled shafts have been installed by Malcolm Drilling to form the secant pile retaining walls to support the 400 ft x 80 ft x 80 ft launch pit for the SR 99 tunnel boring machine […]
Hayward Baker has been working 18-hour days for Colorado DOT to repair a sinkhole on US 24 caused by an abandoned railroad tunnel. The link below takes you to a photo gallery on Hayward Baker’s […]
This post contains a list of new, revised and otherwise updated ASTM standards that pertain to the geotechnical engineering, materials testing and related fields. The standards for the standard proctor and modified proctor tests have been revised. There are a number of updated standards associated with cements and mortars, and curiously several standards that have been withdrawn with no replacements, including the standard for testing collapse susceptibility of soils, one pertaining to curing of concrete, and two for testing of soil-cement mixtures. Click through to see the updates to the ASTM standards.
70 boreholes were completed as well as 7 load test piles to characterize the geotechnical conditions for this well known bridge spanning the Hudson River in New York. No significant surprises were encountered compared to […]
The modern race car being driven on the professional circuit today is an aerodynamic wonder. With mere inches of ground clearance, the car is designed to utilize airflow over the body of the car to force the tires down firmly against the pavement, maximizing traction. The objective, of course, is to safely maximize speed.
Professional race car drivers criticized Texas Motor Speedway regarding“bumps” in the 1.5-mile track between turns one and two. They said that these bumps limited them from running “multiple grooves” on the track (the “side-by-side” racing that NASCAR fans crave) and made it difficult to control cars coming out of turn one.
Texas Motor Speedway responded to this criticism immediately, engaging surveyors to shoot elevations across the track to detect any track deficiencies. It was determined that the unlevel areas were not “bumps”; to the contrary, the problem was, in fact, areas of settlement, dubbed “Dale’s Dips” by the press.
[Editor] Read on for more on this interesting project from GeoPrac sponsor URETEK ICR. [/Editor]
GeoPrac sponsor Nicholson Construction is working on one of the most challenging grouting jobs in the world right now. They are performing grouting in porous limestone formations under the shipping channel in Miami’s Biscayne Bay […]
TRB’s National Cooperative Highway Research Program (NCHRP) Report 717: Scour at Bridge Foundations on Rock presents a methodology for estimating the time rate of scour and the design scour depth for a bridge founded on […]
If you have an iPad, you can now read Ground Engineering magazine for free! GE Magazine is one of the industry’s most respected trade publications, affiliated with the UK’s New Civil Engineer organization. The app […]
The Pakyong Airport in Himalayan state of Sikkim in North East India was selected as the 2012 International Project of the Year by Ground Engineering Magazine, a geotechnical engineering trade publication associated with the UK’s […]
FHWA Director Mendez was on hand last month as WSDOT broke ground on the SR 99 tunnel, also known as the Alaskan Way Viaduct Replacement Tunnel. The project is expected to cost upwards of $2B […]
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