Lateral loads on bridges can result from earth pressure, seismic forces, wind loads, traffic or even ship impact or wave action. In cases where lateral loads govern, it is not uncommon to see designers add […]
TRB’s National Cooperative Highway Research Program (NCHRP) Report 697: Design Guidelines for Increasing the Lateral Resistance of Highway-Bridge Pile Foundations by Improving Weak Soils examines guidance for strengthening of soils to resist lateral forces on […]
It takes planning and good leadership to decide on an effective solution to problems associated with a building asset. Recently, a large wholesale warehouse facility in Cincinnati began to experience large sinkholes across a significant portion of their customer parking lot. Unable to determine the problem at that time, store management was forced to close a portion of the parking lot, inconveniencing their customers. This particular parking lot is unusual in that a drainage system is located directly under the parking lot, consisting of a network of pipes spanning 250 feet in length and 12” in diameter. Joint separations in the underground drainage piping had caused enough soil erosion to create sinkholes in the asphalt. Engineers were concerned that other unknown sinkholes could cave in anytime, resulting in further costly damage, and potentially posing safety hazards to customers.
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PITTSBURGH, PA – December 8, 2010 – Nicholson Construction Company and Menard are pleased to announce a new strategic partnership. Under the partnership, Menard will perform the group’s ground improvement work in the United States, including controlled modulus columns™, vibro stone columns, vibro-compaction, vibro concrete columns, dynamic compaction™, rapid impact compaction, Menard vacuum™ consolidation, and wick drains. Nicholson will continue to perform its comprehensive techniques for deep foundations, earth retention and ground treatment. The two sister companies are headquartered in Pittsburgh, Pennsylvania, and have already worked together on several significant projects.
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PITTSBURGH, PA – July 13, 2010 – Nicholson Construction Company is pleased to announce that Soletanche Freyssinet, a world leader in civil engineering and construction, acquired Agra Foundations Limited on June 25, 2010. Agra Foundations specializes in piling and ground improvement. Agra is headquartered in Edmonton, Alberta, and primarily operates in Western & Central Canada, where it has six office locations. Agra Foundations will continue to operate as an autonomous company, under the leadership of their President, Derek Harris, P.Eng, a 28 year veteran of the company.
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Jet Grouting is a ground improvement technology used to mix the insitu soils with cement to create a soil cement column. The systems can be single, double or triple fluid jet grouting. The common element […]
Our first article from Robert Thompson with Dan Brown and Associates. A project profile of a challenging project invoving a railroad spur for a quarry. It involved ground improvement, soil nailing, and MSE walls.
Hayward Baker, Inc. is providing a more cost-effective foundation system in the form of Vibro Piersâ„¢. Well-suited for light-to-heavy loads on large or small projects, Hayward Baker’s Vibro Piers are quick to install and highly effective at reinforcing the surrounding soils. [Editor: Read on for the rest of the press release]
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