ECS Wolf Den – a Center for Learning and Collaboration

By and for ECS clients and employees

Winter Grading

While site grading can be done during the winter months, it is more costly. Grading generally takes more time due to wetter soils and more “bad weather” days. Otherwise good soils are frequently wasted because of frost and higher moisture contents. To help successfully manage these conditions, these techniques can keep your project moving forward during the winter season:

File Under: Geotechnical
Comments: (0)

Award-Winning Project Spotlight: Science Drive Parking Garage

Every year, the American Council of Engineering Companies (ACEC) hosts an Engineering Excellence Awards competition, where it chooses exemplary projects from engineering firms across North Carolina to receive recognition. This year, ECS Carolinas, LLP was the recipient of both the Honor Award and People’s Choice Award for their work on the Science Drive Parking Garage in Durham, NC.

File Under: Geotechnical
Comments: (0)

Cold Weather Concrete

With the approach of winter, it’s time to remember cold weather concrete practices. According to the American Concrete Institute (ACI)’s publication, “Guide to Cold Weather Concreting,” (ACI 306R) cold weather is defined as any time the air temperature falls or is expected to fall below 40°F during the protection period (the time required to prevent concrete from being affected by cold weather).

File Under: Geotechnical
Comments: (0)

Geotechnical Engineering in the Urban Environment

The first thing I do when I step out of a subway and go above ground is to look around and admire the city that I’m in. I gaze at the buildings and wonder who could be lucky enough to live in them. Then, as my imagination comes back down to earth, I think about how these buildings were built. I’m a geotechnical engineer, which means that I spend my days thinking about soil and rocks. I can’t help but think about the intricate process behind constructing a building.

File Under: Geotechnical
Comments: (0)

Shout Out to Geotechnical Engineers

Delaware Bridge “...a DEFCON-5 for a Transportation System”

-Delaware Transportation Secretary Shailen P. Bhatt

File Under: Geotechnical
Comments: (0)

Baltimore Retaining Wall Failure

Over the years, we have consulted on numerous slope and retaining wall failures. The recent retaining wall failure adjacent to a railroad line in North Baltimore was captured on video by a bystander. As you listen to the background chatter, you will hear someone say ‘Three years they’ve been working on this….They’ve been out here ten times and all they do is put a little dirt in and try to fill it in’.

File Under: Geotechnical
Comments: (0)

Drying Soils Chemically Using Lime

Photo courtesy of Carmeuse Lime and Stone Company

File Under: Geotechnical
Comments: (0)

Winter Grading

Summer is typically the best time to start site grading. Unfortunately, not all projects can be completed before winter weather sets in. While site grading can still be done during the winter months, it is more costly. Grading generally takes more time due to wetter soils and more “bad weather” days. Otherwise good soils are frequently wasted because of frost and higher moisture contents.

To help successfully manage these conditions, there are techniques that can keep your project moving forward if you must conduct grading activities during the winter season.

File Under: Geotechnical
Comments: (0)

GeoVirginia Conference: “Lessons Learned in Geotechnical Engineering”

GeoVirginia is a geotechnical conference focused on lessons learned from case histories. The main goal of the conference is to learn from things that went right or wrong (failures) during the design and construction of projects. Hosted every 18 months by the Virginia Geo-Institute Chapter of the ASCE, the conference was created in late 2010 by a committee appointed by Virginia G-I Chapter Chair Roger A. Failmezger, P.E., F.ASCE. The conference is held in Colonial Williamsburg, Virginia.

File Under: Geotechnical
Comments: (0)

Building in Karst Environments

Karst is a term used to describe an area where limestone bedrock has eroded in an irregular manner. This irregular erosion is caused by the dissolution of limestone, which occurs as water is transported through the rock. As a result, these areas are often characterized by extremely variable rock surfaces, rock pinnacles, solution channels, sinkholes, and caves that may not be able to adequately support the proposed site improvements and buildings.

File Under: Geotechnical
Comments: (0)
1 of 2