Study on the Interaction Mechanism between Micropiles and Soil Landslides-Reference-Cited by-同舟云学术

Study on the Interaction Mechanism between Micropiles and Soil Landslides

Published:2023-07-05 Issue:13 Volume:15 Page:10630
ISSN:2071-1050
Container-title:Sustainability
language:en
Short-container-title:Sustainability

Author:

Xu Rui¹²^ORCID,Sui Guochen¹,Wang Guanglu¹,Cheng Hui³,Li Xunchang¹,Yang Wei¹,Deng Juntao⁴,Zeng Farong⁵

Affiliation:

1. School of Geology Engineering and Geomatics, Chang’an University, Xi’an 710054, China

2. Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai 200092, China

3. PowerChina Northwest Engineering Corporation Limited, Xi’an 710065, China

4. China Jikan Research Institute of Engineering Investigations and Design, Co., Ltd., Xi’an 710043, China

5. China National Petroleum Corporation Changqing Oilfield Branch, Xi’an 710018, China

Abstract

The interaction mechanism between micropiles and soil landslides is comprehensively investigated through static model tests and numerical simulations. The results show that the deformation damage mode of micropiles is mainly bending and shear damage. Because of bending deformation, cracks appear at the rear and front of the pile, respectively, about three times the pile diameter from the sliding surface. In addition, the plastic damage becomes more severe when approaching the back edge of the landslide body. Micropiles in the landslide body play a significant role in load sharing; more importantly, there is a certain pattern between the miniature piles. According to the experimental and numerical simulation results, the recommended load-sharing ratio for micropile design under static conditions is as follows: rear-row pile:middle-row pile:front-row pile = 0.411:0.348:0.241. The research in this paper reveals the good effect of micropiles against landslides, explains the mechanism of pile–soil interaction, and provides a theoretical reference for the research and application of micropiles in engineering.

Funder

Basic Research Program of Natural Sciences of Shaanxi Province

China Jikan Research Institute of Engineering Investigations and Design, Co., Ltd. 2022 scientific research fund

University Student Innovation and Entrepreneurship training programs

China National Petroleum Corporation Changqing Oilfield Branch 2023 Annual Science and Technology Project

Chang’an University Professional Degree Research Production Teaching Integration Collaborative Education Project, “Theory of Geological Disaster Prevention and Control”

Publisher

MDPI AG

Subject

Management, Monitoring, Policy and Law,Renewable Energy, Sustainability and the Environment,Geography, Planning and Development,Building and Construction

Link

https://www.mdpi.com/2071-1050/15/13/10630/pdf

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