The mechanism of grouting action under the base of bored pile

Adam Krasiński; Mateusz Wiszniewski

The mechanism of grouting action under the base of bored pile

Abstract

The grouting under the base of bored pile is carried out in order to reduce pile settlement and improve its bearing capacity. The principal aim of grouting is to introduce an initial force between the soil and the pile base. In non-cohesive soil, the grouting can also enlarge the pile base area and therefore improve the base resistance. The example of static load tests on instrumented bored piles installed with and without grouting is presented. The interpretation and comparative analysis of both piles tests is carried out and gives interesting results. The conclusion of analysis is, that the grouting under the base primarily activates and increases the pile shaft resistance and thanks to it improves the characteristics of bored pile interaction with soil.

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Keywords

PILE FOUNDATION, BORED PILE, GROUTING UNDER PILE BASE, BEARING CAPACITY OF PILE

Details

Category:: Conference activity
Type:: publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
Title of issue:: Proceeding of the 2018 DFI-EFFC International Conference on Deep Foundations and Ground Improvement strony 858 - 867
Language:: English
Publication year:: 2018
Bibliographic description:: Krasiński A., Wiszniewski M.: The mechanism of grouting action under the base of bored pile// Proceeding of the 2018 DFI-EFFC International Conference on Deep Foundations and Ground Improvement/ 326 Lafayette Avenue - Hawthorne NJ 07506 : Deep Foundations Institute, 2018, s.858-867
Verified by:: Gdańsk University of Technology