The San Juan Creek Bridge near Antonio Parkway in Orange County, California, was slated for improvement as part of the widening of Ortega Highway (SR-74) into four lanes to relieve traffic congestion and accommodate planned growth in the region. To provide scour protection for the existing and new bridge piles, soilcrete (soil–cement) columns were constructed around the pile locations by using jet grouting, an in situ ground modification system. The Super Jet system of jet grouting was used. Headroom under the existing bridge was 10 ft. One hundred fifty-eight overlapping soilcrete columns were constructed around the planned piles. These columns were installed to the top of the San Juan Capistrano formation or to the designed scour depth. The specified minimum unconfined compressive strength (UCS) was 600 psi, and the required average strength was 750 psi. A test section was used to confirm the geometry and strength of the soilcrete columns. UCS tests were performed on wet grab samples and core samples. State-of-the-art quality control measures were implemented throughout the project. The design, construction, and quality control measures undertaken by the geotechnical contractor are discussed.


    Access

    Download

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Jet Grouting to Provide Scour Protection


    Subtitle :

    Bridges Across San Juan Creek near Antonio Parkway, California


    Additional title:

    Transportation Research Record: Journal of the Transportation Research Board


    Contributors:


    Publication date :

    2010-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Countermeasure Construction Using Jet Grouting Methods to Combat Foundation Scour

    Boehm, Dennis | HENRY – Federal Waterways Engineering and Research Institute (BAW) | 2002

    Free access

    Scour Monitoring and Scour Protection Solution for Offshore Gravity Based

    Bolle, Annelies / Mercelis, P. / Goossens, W. et al. | HENRY – Federal Waterways Engineering and Research Institute (BAW) | 2010

    Free access

    Optimisation of Scour Protection Measures

    Spaan, G. / Lindo, M. / Kant, Gijsbert | HENRY – Federal Waterways Engineering and Research Institute (BAW) | 2002

    Free access

    Protection of Bridge Piers from Scour

    Kumar, V. | British Library Online Contents | 1998