Bullwinkle's Big Brother
In 1980, the Outstanding Civil Engineering Achievement Award went to Cognac, Shell Oil Co.'s then-tallest offshore platform. In 1989 the Bullwinkle platform became the new...

Influence of Bearing Support Structures on Shaft Vibration of Large Hydraulic Pump/Turbines

Stability of Drilled Shafts Under Earthquake Induced Axial Loads

A Primer on Micropiles
A major study of micropile technology has recently been funded by the Federal Highway Authority and completed by the authors. The subject is defined as a drilled and grouted, cast-in-place,...

Robotic Options for Mining of Near-Earth Objects
The mining and processing of a Near-Earth Object (NEO) should be as simple and as robust as possible - the fewer processes and parts the better. Reliability and survivability of the total...

Shaft Performance in Taylor Marl—Field Measurements vs. Numerical Modeling

Evaluation of the Pagosa Springs Geothermal Reservoir and Implications of Potential Additional Reservoir Development
The Town of Pagosa Springs is located 280 miles from Denver on the north bank of the San Juan River in southwest Colorado as shown on the Index Map, Some time before 1920 the first well...

A New Angle on Ground-Water Remediation
When engineers from Black & Veatch Waste Science (BVWS) went to Tinker Air Force Base to examine the site of a hazardous waste cleanup job the service had hired them for, they...

Developing Standardized Connection Analysis Techniques for Slim Hole Core Rod Designs

Integrated Geology and Preliminary Cross Section Along the North Ramp of the Exploratory Studies Facility, Yucca Mountain

Analyses of Releases Due to Drilling at the Potential Yucca Mountain Repository

Oil and Gas Exploration Near Yucca Mountain, Southern Nevada

Mechanical and Bulk Properties in Support of ESF Design Issues

Numerical Modeling of Initial Ground Movement in an Instrumented Superconducting Super Collider Shaft
A 5.5 m diameter shaft was sunk into a rock formation of Taylor Marl to a depth of 61 m at the Superconducting Super collider (SSC) site. Numerical modeling using finite difference analysis...

Testing and Predicting the Movement of a Drilled Shaft in New Mexico
The New Mexico State Highway and Transportation Department (NMSH&TD) have been using drilled shafts for supporting bridges in the State of New Mexico. Several drilled shafts were...

Nonlinear Undrained Lateral Response of Rigid Drilled Shafts Using Continuum Theory
The nonlinear undrained response of rigid drilled shafts under static lateral and moment loading is evaluated within the context of elastic continuum theory. The approximate approach utilizes...

The Tip Displacement of Drilled Shafts in Sands
The design load of large diameter drilled shafts is determined so that the settlements do not exceed the values associated with the ultimate and serviceability limit states. Based on the...

New Approaches for Determination of Rock and Rock Mass Properties at Dredging Sites

New Way Out
An obsolete and hazardous ventilation/emergency-exit shaft on the banks of the Hudson River has been replaced with a deep, dual-shaft system that connects to a 100-year-old train tunnel...

Technical Note: STC-40 Shotcrete Adhesion In Situ Tester
It is essential that the shotcrete when reinforcing the rock mass achieves a good adhesive bond to the rock surface. The strength of that bond can be controlled by pull out testing either...

 

 

 

 

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