Experimental study on the influence of umbrella anchor on the reinforcement effect of micro pile

DOI

10.2991/978-94-6463-398-6_75How to use a DOI?

Keywords

pile-anchor combined support; umbrella anchor; indoor reduced scale experiment

Abstract

The construction of micro pile is more convenient than that of anti-slide pile, but the anti-slide ability is low and the deformation control ability is insufficient. The combined support of prestressed umbrella anchor and micro pile for channel slope is the solution. The indoor model test was carried out to analyze the influence of umbrella anchor on the reinforcement effect and deformation control ability of micro-piles under the condition of pile-anchor combined reinforcement. The research shows that: 1. The combined reinforcement of the slope with umbrella anchor and micro pile can greatly increase the maximum bearing capacity of the slope under the condition of single reinforcement of micro pile, and significantly reduce the horizontal displacement of the slope; compared with the micro-pile reinforcement, the convergence trend of the horizontal displacement of the slope under the combined reinforcement condition is more obvious, the deformation timeliness is reduced, and the total displacement is relatively small; the engineering example shows that the combined reinforcement of micro-pile and umbrella anchor has immediate reinforcement effect and strong deformation control ability, which can be used for slope emergency rescue and permanent repair project. The research results provide theoretical basis and experimental basis for the popularization and application of umbrella anchor in pile-anchor combined reinforcement.

Copyright

© 2024 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Qinwen Liu
AU  - Shuxue Song
AU  - Yilin He
AU  - Yong Xiong
AU  - Jialin He
PY  - 2024
DA  - 2024/04/24
TI  - Experimental study on the influence of umbrella anchor on the reinforcement effect of micro pile
BT  - Proceedings of the 2023 5th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2023)
PB  - Atlantis Press
SP  - 783
EP  - 796
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-398-6_75
DO  - 10.2991/978-94-6463-398-6_75
ID  - Liu2024
ER  -