# Tag: loose soil

Soil liquefaction describes a phenomenon whereby a saturated or partially saturated soil substantially loses strength and stiffness in response to an applied stress, usually earthquake shaking or other sudden change in stress condition, causing it to behave like a liquid.

# Fugitive Dust Control and Road Stabilization

Whether fugitive dust comes from mining activities, country roads, open land, or elsewhere, federal governments in North America and in other countries around the world have been tightening their dust control regulations.

# Estimating Earthwork Volumes

Formulas and methods for determining the volumes and areas of regular shapes and surfaces go back at least as far as ancient Greece. Pythagoras and other mathematicians determined those formulas that are still used to calculate the volumes of spheres and pyramids, as well as the areas of curve conic

# Measuring Earthwork Volumes

Formulas and methods for determining the volumes and areas of regular shapes and surfaces go back at least as far as ancient Greece. Pythagoras and other mathematicians determined those formulas that are still used to calculate the volumes of spheres and pyramids, as well as the areas of curve conic

# A Calm, Smooth Surface

Whether fugitive dust comes from mining activities, country roads, open land, or elsewhere, federal governments in North America and in other countries around the world have been tightening their dust control regulations.

# “The Base Could Liquefy”

Of all the problems we hear about related to American infrastructure, the state of the nation’s dams is perhaps the scariest; a failure upstream of an urban area could cause more damage all at once than just about any other infrastructure-related event. The failure of the spillways at the Oroville

# Techniques for Stabilizing Slopes

From stabilizing failing slopes to creating new slopes, erosion control contractors are turning to new technologies as well as relying on the tried and true in a number of projects throughout the US.

# Slope Stabilization Techniques

From stabilizing failing slopes to creating new slopes, erosion control contractors are turning to new technologies as well as relying on the tried and true in a number of projects throughout the US.

# Storm Drain Inlet Protection

If a stream or other waterbody is showing an increase in sediment or pollutant contamination, nearby active construction sites are usually the first suspect. As any developer or construction crew chief knows, devices to stop runoff from the site are an absolute necessity.

# Inlet Protection for Storm Drains

If a stream or other waterbody is showing an increase in sediment or pollutant contamination, nearby active construction sites are usually the first suspect. As any developer or construction crew chief knows, devices to stop runoff from the site are an absolute necessity.

# A Cosmic Well

Carl Sagan’s book Pale Blue Dot was inspired by a photograph (below) taken as the Voyager 1 spacecraft left for the edge of the solar system on February 14, 1990. The portrait of our world—taken from 4 billion miles away—reveals the vastness of the cosmos relative to Earth’s pixel-sized fleck of blue.