A Brief History of Jet Grouting in the Last 50 Years: The Story of Its Evolution
Jet grouting, a grouting soil improvement construction technique, was first developed in Japan in the 1960s and 1970s, and then introduced in Europe a few years later in the form of a proposal for soil...

Working Platforms for Specialty Geo-Construction
A major cause of rigs toppling over is the state of the "working platform" that they must work from. A working platform is a layer of material, often compacted sand or gravel, placed over the subgrade,...

Your Numerical Model Begins at the Site Investigation — Phase Improving the Suitability of Numerical Geotechnical Modeling
The success of an advanced geotechnical numerical analysis depends foremost on a thorough geologic and geotechnical understanding of the site, and thus the geometric definition and adequacy of input parameters...

When AI Meets DIGGS — The Birth of a New Site Characterization Paradigm?
Drilling and sampling to obtain borehole logs, together with various in-situ testing, are usually performed to determine subsurface soil and rock profiles and their associated engineering properties. However,...

Practical Aspects Of Routine Geotechnical Site Investigations — They Should Be Anything But Boring!
It’s likely that on any given day there are hundreds of geotechnical site investigations in progress in North America alone. While many of these investigations are carried out in support of large projects,...

Errors in Biaxial Web Making

Moving Down the Road of Progress: Geosynthetics Subdue Failures on Expansive Clays and Frost-susceptible Soils
Using geosynthetics in roadway projects has provided sustainable alternatives for reconstruction and maintenance and now represents a significant portion of the total geosynthetics market. Geosynthetics...

Sediment Pollution: Solving "Rill" Problems Using RECPs
Sediment pollution causes an estimated $16 billion in environmental damage annually. Sediment is the most common pollutant in rivers, streams, lakes, and reservoirs, causing such negative effects as temperature...

Revolutionizing Containment Applications: Geosynthetics are Amazingly Good, But Not Magical
Geotextiles and geomembranes have been around for more than 40 years and geosynthetic clay liners (GCLs) for more than 25 years. During that time, they have revolutionized the containment of fluids. Their...

Test Your Soil Models Against the Case Data Base

Highway Embankment Failure on Soft Clay: Bad Input = Bad Output
Our ability to analyze and compute 2D and 3D factors of safety for embankments and slopes, including finite element and finite difference analyses, has increased greatly in the last decade. However, use...

Learning From Pile Driving Failures: Out of Sight Can't be Out of Mind
The design of driven pile foundations for static service and strength limit state loading conditions is meaningless if the piles cannot be driven to the required depth and nominal resistance without sustaining...

Correction to "Highway Embankment Failure on Soft Clay — Bad Input = Bad Output"

Soil Improvement Committee

Strengthening Connections
China’s Hong Kong–Zhuhai–Macao Bridge is the world’s longest sea crossing. It promotes connectivity in a fast-growing region, significantly cutting journey times in what is known as the Greater Bay Area....

Soil Sampling at Sword Beach in Normandy, France, 1943: How Geotechnical Engineering Influenced the D-Day Invasion
When the World paused last summer to remember the 75th anniversary of D-Day, many of us were gripped by stories, both heroic and horrific, told about the Allied invasion of Normandy’s beaches. One of these...

Big Steps for Mankind: Extraterrestrial Sampling and Exploration 50 Years after Apollo 11
Between June 1966 and January 1968, four Surveyor missions successfully landed on the Moon, collecting invaluable scientific data required to support the coming manned Apollo missions. Central to the goals...

Subsurface Constructors, Inc. Adds to Ground Improvement Team

Back in Action
At one of Northern Virginia’s most complex and notoriously congested intersections, the superstructure of a critical highway overpass was demolished, removed, and replaced in a single weekend. The design’s...

An Unknown-Unknown Does In An Overpass: A Soil Stockpile on Soft Clay Is Too Much for a Bridge in Canada
Like most structures, bridges are designed for an array of loading conditions. Some loads are known or can be reasonably estimated with confidence (i.e., known-knowns, such as structure dead and vehicular...

 

 

 

 

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