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    Volume 47, Issue 3 (October 2018)

    Special Issue Paper

    Study on Grouting Penetration in Soil Rock Mixture and the Mechanical Behavior after Grouting Reinforcement

    (Received 18 December 2017; accepted 30 May 2018)

    Published Online: 02 October 2018

    CODEN: JTEVAB

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    Abstract

    Soil Rock Mixture (SRM) is often regarded as a problematic geological feature during geotechnical engineering projects, which is commonly reinforced by grouting methods. In this study, the mechanical behavior of grouted SRM is investigated. Laboratory experiments are carried out to study the fundamental penetration mechanism and distribution regularities of grout vein during grouting in SRM and investigate the influence of grouting reinforcement on the strength of SRM. The SRM material used in the experiment is prepared by mixing soil and gravel at different ratios. The grout veins are excavated after solidification to observe and categorize their typical distribution patterns and analyze the influence from rock blocks. Then, uniaxial compressive strength tests are conducted on the test samples of grouted SRM. Based on the experimental results, a theoretical model is proposed that considers the influence of block proportion, block count, grouting volume, and grout vein distribution. Finally, an evaluation method for the strength of grouted SRM which can reasonably estimate the strength of grouted SRM is proposed.

    Author Information:

    Liu, Rentai
    Geotechnical and Structural Engineering Research Center, Shandong University, Jinan, Shandong

    Zheng, Zhuo
    Geotechnical and Structural Engineering Research Center, Shandong University, Jinan, Shandong

    Shucai, Li
    Geotechnical and Structural Engineering Research Center, Shandong University, Jinan, Shandong

    Zhang, Qingsong
    Geotechnical and Structural Engineering Research Center, Shandong University, Jinan, Shandong


    Stock #: JTE20170761

    ISSN:0090-3973

    DOI: 10.1520/JTE20170761

    Author
    Title Study on Grouting Penetration in Soil Rock Mixture and the Mechanical Behavior after Grouting Reinforcement
    Symposium ,
    Committee D18