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    Jet Grouting to Increase Lateral Resistance of Pile Group in Soft Clay

    New search for: Rollins, Kyle M.
    New search for: Adsero, Matthew E.
    New search for: Brown, Dan A.

    Lateral load tests were performed on a full-scale pile cap in clay before and after construction of eight 1.5 m diameter jet grout columns to a depth of 3 m around the pile group. Jet grouting with a cement content of about 400 kg/m3 (20% by weight) increased the average compressive strength of a soft, plastic clay from 40 to 60 kPa to an average of 4500 kPa. The lateral resistance was increased by 2200 kN or 177% and the initial stiffness was increased by 400%. About 65% of the increased resistance could be accounted for by passive pressure and side/base shear on the jet grout mass; however, the remaining 35% increase must be due to the interaction between the piles and the strengthened soil. Jet grouting provides a method to significantly increase the lateral resistance of pile group foundations at costs much lower than typical structural approaches.

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    Jet Grouting to Increase Lateral Resistance of Pile Group in Soft Clay

    New search for: Rollins, Kyle M.
    New search for: Adsero, Matthew E.
    New search for: Brown, Dan A.

    Lateral load tests were performed on a full-scale pile cap in clay before and after construction of eight 1.5 m diameter jet grout columns to a depth of 3 m around the pile group. Jet grouting with a cement content of about 400 kg/m3 (20% by weight) increased the average compressive strength of a soft, plastic clay from 40 to 60 kPa to an average of 4500 kPa. The lateral resistance was increased by 2200 kN or 177% and the initial stiffness was increased by 400%. About 65% of the increased resistance could be accounted for by passive pressure and side/base shear on the jet grout mass; however, the remaining 35% increase must be due to the interaction between the piles and the strengthened soil. Jet grouting provides a method to significantly increase the lateral resistance of pile group foundations at costs much lower than typical structural approaches.

    Access

    Check access
    Check availability in my library
    Order at Subito €

    Jet Grouting to Increase Lateral Resistance of Pile Group in Soft Clay

    New search for: Rollins, Kyle M.
    New search for: Adsero, Matthew E.
    New search for: Brown, Dan A.

    Lateral load tests were performed on a full-scale pile cap in clay before and after construction of eight 1.5 m diameter jet grout columns to a depth of 3 m around the pile group. Jet grouting with a cement content of about 400 kg/m3 (20% by weight) increased the average compressive strength of a soft, plastic clay from 40 to 60 kPa to an average of 4500 kPa. The lateral resistance was increased by 2200 kN or 177% and the initial stiffness was increased by 400%. About 65% of the increased resistance could be accounted for by passive pressure and side/base shear on the jet grout mass; however, the remaining 35% increase must be due to the interaction between the piles and the strengthened soil. Jet grouting provides a method to significantly increase the lateral resistance of pile group foundations at costs much lower than typical structural approaches.

    Access

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    Check availability in my library
    Order at Subito €

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    Title:

    Jet Grouting to Increase Lateral Resistance of Pile Group in Soft Clay

    Contributors:

    Rollins, Kyle M. (author) / Adsero, Matthew E. (author) / Brown, Dan A. (author)

    Conference:

    International Foundation Congress and Equipment Expo 2009 ; 2009 ; Orlando, Florida, United States

    Published in:

    Contemporary Topics in Ground Modification, Problem Soils, and Geo-Support ; 265-272

    Publication date:

    2009-03-10

    ISBN:

    9780784410233

    DOI:

    https://doi.org/10.1061/41023(337)34

    Type of media:

    Conference paper

    Type of material:

    Electronic Resource

    Language:

    English

    Keywords:

    Retaining structures , Pile groups , Shallow foundations , Soil mechanics , Soil stabilization , Jet grouting , Deep foundations , Soft soils , Geosynthetics , Landfills , Pavements

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