Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6714301 | Construction and Building Materials | 2018 | 8 Pages |
Abstract
The DCM-bored pile (DCM-BP) is a new kind of composite foundation formed by inserting a core-bored pile into a deep cement mixing (DCM) column socket, and the DCM-BP has only been used in a few projects to date. Unlike the conventional bored pile (CBP), the performance of the DCM-BP is enhanced by the surrounding cement-soil materials, which should result in a large change compared to that of the CBP. In this paper, a series of full-scale load tests on the DCM-BP were conducted to investigate the performance of the DCM-BP under lateral loads compared with that of the CBP. The lateral bearing characteristics of the DCM-BP and its advantages are presented in this study. Based on the test results, the DCM-BP displays a greater bearing capacity than that of the CBP, with much smaller lateral displacement under the same lateral load. Comparisons of the bending moments and lateral resistances of the DCM-BP and CBP were also analysed in detail. It is concluded that the DCM-BP has considerable advantages over the CBP because the DCM-BP improves the surrounding lateral resistance and enhances the performance of the core bored pile.
Related Topics
Physical Sciences and Engineering
Engineering
Civil and Structural Engineering
Authors
Hongjiang Li, Songyu Liu, Liyuan Tong,