Design of the Future Mexico City Airport: Attaining Resilience in Soft Ground
The Lake Texcoco region to the east of Mexico City is famed for its deep lacustrine deposits of compressible clay, which amplify ground shaking during seismic events. The area is also gradually subsiding...

Preserving the Past: Recovering the Destroyed Buddha Statues and Niches in Bamiyan Afghanistan
For millennia, civilizations have built monuments to honor their gods, leaders, or founding principles, and with time those monuments that still exist have become revered treasures. Take, for example,...

Risky Business: Identifying an Acceptable Rockfall Standard
For many parts of the U.S. highway system, cut slopes in rock are as common as bridges and embankments. These cut slopes, as well as some natural ones, produce rockfalls that pose risks to highway conditions...

Stabilizing the Cliffs of Alcatraz Island: It My Be "The Rock," but it Still Needs Attention!
California's Alcatraz Island was described by some early explorers as an unusually lush rock sticking out of the sea. The rock on the island consists of shale and sandstone members of the late Mesozoic-aged...

Rock Glue Gets the Job Done: Reducing Rockfall Hazards along the G.W. Parkway
After a large rockfall damaged the road and disrupted traffic along the George Washington Memorial Parkway in 2002, the National Park Service was looking for solutions to stabilize the slope against additional...

Photogrammetry for Rock Engineering: A Snapshot of State-of-the-Art Rock Mapping
Generally speaking, photogrammetry is the science of turning photographs into 3D models. While flashy advertisements may convey the idea that it's as simple as pushing a button (e.g., on a drone remote)...

Borehole Geophysics: Tools to Characterize Rock Properties
Effective design and construction in rock requires characterization of the engineering properties of the rock mass, as well as any associated geological features such as joints, faults, and bedding planes....

Low-Gravity Experiments: Shear Testing Takes a Nose Dive
A major challenge to making celestial soil mechanics viable is to re-engineer the profession's toolkit to provide geotechnical solutions without the luxury of ex-situ and in-situ testing as we know them...

Difficult-Access Rockfall Mitigation: Design and Construction Way Up High!
Rockfall mitigation projects frequently require work at elevated positions. This is not something that comes naturally for many engineers and geologists. Palms sweat, knees knock, and voices may start...

Appraisal of Lightweight Moorings for Deep Water
This paper outlines the potential advantages of using lightweight fiber ropes for mooring floating production platforms. The influence of tether properties on mooring system response is discussed. It is...

Open Pit Geotechnics: Designing Slopes for a Very Deep Hole
For most hard rock surface mining operations, the development of an open pit is required to extract the ore resource. In designing an open pit, the challenge is to develop the most cost-effective pit slopes...

Redevelopment of Aggregate and Rock Quarries: No Longer Just a Hole in the Ground
Redevelopment of former sand and gravel (aggregate) and rock quarries can be challenging, often requiring developers, quarry operators, planners, and engineers to work in tandem. As urban and suburban...

Military Geotechnics in the Ancient World: Geo-Innovating the Hard Way
The technical expertise that is now part of geotechnical engineering was of paramount importance in the ancient worlds. This is because before, but also after, the invention of siege equipment, nearly...

Cracking the Nuclear Code: Finding an Alternative to the Nuclear Density Gauge
Two of the most basic quality control tests made in the field during soil construction are the soil’s moisture content and density. The establishment of a uniform procedure to compare the performance of...

Translating the Language of Soils: Developing a Soil Classification System for International Engineering Projects
Soil classification systems are used to help predict soil behavior and provide information to farmers, engineers, builders, agricultural extension agents, homeowners, community planners, and government...

Soil Nailing in the 2010s: Its Evolution and Coming of Age
While the early 2000s witnessed soil nailing as a well-established method in the U.S. for providing temporary and permanent support of excavation (SOE), the technique has since continued to evolve thanks...

Geotechnical Risk Management: The Five Non-Technical Topics that are Crucial for the Successful Practice of Geotechnical Engineering
It is fair to state that the aspects of civil design and construction referred to as geotechnical engineering can be characterized as inherently risky. Geologic processes are complex,...

Making Big Data Work for You and Your Project: A 3-D Geotechnical Model is a Smart Way to Work
Modeling the stratigraphy beneath a site and assigning soil and rock properties are important steps in geotechnical engineering. Geotechnical engineers often need to model ground conditions...

Dynamic Shearing Properties Of Compacted Clay
A series of 116 Q-type triaxial compression tests was performed using specimens of Goose Lake clay compacted at water contents ranging from 9 percent dry of optimum to 3 percent on the...

Estimation of Consolidation Properties of Clay from Field Observations
Analyses to obtain theoretical time-settlement curves for embankments typically make use of soil properties measured in the laboratory on small disturbed samples subject to strain rates...

 

 

 

 

Return to search