Technical Bulletins

FOUNDATION SUPPORT

■ Ductile Iron Piles – Corrosion Resistance (Technical Brief)

■ Ductile Iron Piles – Vibrations and Sound (Technical Brief)

■ Innovative Deep Foundation Support using Ductile Iron Piles (DFI 2016)

■ Innovative Deep Foundation Support using Ductile Iron Piles (GEOQuebec 2015)

■ An Alternative Pile Technology (DFI 2014)


GROUND IMPROVEMENT

■ 2-42 Annual Met Section GI Seminar – Rigid Inclusion Support of High Rise (White Paper)

■ ICC-ES Report 2017 (Rammed Aggregate Pier Intermediate Foundation/Soil Reinforcement System)

■ ICC-ES Report 2017 Are you getting the most out of your ground improvement design? (White Paper)

■ Geopier Case Studies – Buildings Supported over Organic Soils and Peat

■ Classification of Organic Soils – FHWA/IN/JTRP-2008/2 (White Paper)

■ Uncontrolled Fills and Rammed Aggregate Pier® (RAP) Elements

■ Bearing Capacity of Geopier Supported Foundations (Technical Bulletin No. 2)

■ Geopier Uplift Resistance (Technical Bulletin No. 3)

■ Geopier Lateral Resistance (Technical Bulletin No. 4)

■ Shear Reinforcement for Global Slope Stability (Technical Bulletin No. 5)

■ Settlement Control for Embankments – Transportation (Technical Bulletin No. 6)

■ Seismic Site Classification Improvement (Technical Bulletin No. 7)

■ Support Storage Tanks Using RAP (Technical Bulletin No. 8)

■ Vibrations and Noise Levels (Technical Bulletin No. 9)

■ Structural Design Considerations for Uniformly-Loaded Floor Slabs Supported by RAP (Technical Bulletin No. 10)

■ Proper Load Testing Procedures to Verify Adequate Design of Geopier Supported Foundation Systems (Technical Bulletin No. 12)

■ Case Study – Soft Organic Soils and Peat (White Paper)

■ Rammed Aggregate Pier System Provides Uplift Resistance at University Ice Arena (White Paper)

■ Liquefaction Mitigation of Three Projects in CA (White Paper)

■ Settlement Monitoring of Discrete Reinforced Soil Beneath Mat Foundations (White Paper)

■ Geopier vs. Stone Column Performance (White Paper)

■ Design Estimates vs. Final Design (White Paper)


STRUCTURES-WALLS

■ Slope Rehabilitation at the Baltimore-Washington Parkway with Rammed Aggregate Piers (White Paper)
The Baltimore-Washington Parkway is a major traffic artery traveled by daily commuters in suburban Washington, D.C. Much of the parkway roadbed lies on a raised embankment constructed to allow for grade separation between the parkway and surface streets, facilitating access to the parkway. After a series of rainstorms in the fall of 2002, the fill embankment at the recently reconstructed Route 197 interchange failed, with resulting settlement and lateral movement of a retaining wall that supported the southbound lanes of the parkway. The slide encroached on the traffic lanes and jeopardized the integrity and safety of the parkway. After analyzing a variety of possible solutions, the Federal Highway Administration and the National Park Service opted to stabilize the slide by using Geopier rammed aggregate piers, acting in concert with a toe berm stabilized with Tensar high-strength structural geogrid. The rammed aggregate piers improved the stability of the slope by providing significant increases in the composite shear resistance because of their high angle of internal friction (44 deg to 52 deg). A case history is presented of the use of rammed aggregate piers to stabilize a landslide. The analytical methods used in the design solution are presented along with a description of the construction sequence. This study is significant because it describes how a simple and cost-effective solution may be implemented to stabilize landslides.
From O’Malley, E., S. Saunders, and J. Ecker. Slope Rehabilitation at the Baltimore-Washington Parkway with Rammed Aggregate Piers. In Transportation Research Record: Journal of the Transportation Research Board, No. 1874, pp. 136-146. Copyright, National Academy of Sciences, Washington, D.C., 2004. Abstract posted with permission of TRB. For complete paper, please Click Here.

■ Design and Construction-MSE Walls and Reinforced Soil Slopes (White Paper)

■ Shear Reinforcement for Global Slope Stability (Technical Bulletin No. 5)

■ Settlement Control for Embankments – Transportation (Technical Bulletin No. 6)

■ Performance Monitoring of RAP Foundation Supporting Earth Wall (White Paper)

■ Testing and Eval of Driven Plate Piles (White Paper)

■ Modeling a Full-Scale Landslide Test with Plate Piles (White Paper)

■ Stabilizing Landslides (White Paper)



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