水下斜坡浊流侵蚀下预应力锚杆轴向力损失监测及破坏准则

IF 4.2 2区工程技术 Q3 ENGINEERING, ENVIRONMENTAL

Bulletin of Engineering Geology and the Environment Pub Date : 2025-09-29 DOI:10.1007/s10064-025-04483-w

Huan Sun, Qiaofeng Fan, Xiaoli Liu, Yi Lin, Guojie Li, Zhenni Ye

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引用次数: 0

摘要

沿海采砂形成的水下斜坡容易受到浊流的侵蚀和破坏。本文以海南某滨海石英砂开采项目为研究对象，阐述了浊流对水下边坡的侵蚀和破坏。此外，还对浊流引起的水下边坡失稳进行了预测。本文建立了水下边坡的物理相似模型，包括湍流条件下浊流对水下边坡的侵蚀破坏和失稳过程；分析了水下边坡侵蚀过程中浊流密度（TCD）和锚固力损失（AFL）的变化规律。在此基础上，提出了水下边坡侵蚀破坏的临界指标准则。通过数值模拟验证了关键指标准则的有效性。研究结论对水下边坡稳定性监测预警具有重要的应用价值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Monitoring of axial force loss in Pre-tensioned anchors induced by turbidity currents erosion on underwater slopes and its failure criteria

The underwater slopes formed by coastal sand mining are susceptible to erosion and damage caused by turbidity currents. In this study, the erosion and damage to underwater slopes caused by turbidity currents were elucidated in the context of a coastal quartz sand mining project on Hainan Island. Additionally, the destabilization of underwater slopes caused by turbidity currents was predicted. In this study, a physical similarity model of underwater slopes was constructed, including the erosion damage and destabilization process of turbidity currents on underwater slopes under turbulent flow conditions; moreover, the evolution of turbidity current density (TCD) and anchoring force loss (AFL) during the erosion process of underwater slopes was analyzed. Based on this, a critical index criterion for the erosion damage of underwater slopes was proposed. The validity of the critical index criterion was verified through numerical simulation. The conclusions of this study have important application value for the monitoring and early warning of underwater slope stability.

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来源期刊

Bulletin of Engineering Geology and the Environment 工程技术-地球科学综合

CiteScore

7.10

自引率

11.90%

发文量

445

审稿时长

4.1 months

期刊介绍： Engineering geology is defined in the statutes of the IAEG as the science devoted to the investigation, study and solution of engineering and environmental problems which may arise as the result of the interaction between geology and the works or activities of man, as well as of the prediction of and development of measures for the prevention or remediation of geological hazards. Engineering geology embraces: • the applications/implications of the geomorphology, structural geology, and hydrogeological conditions of geological formations; • the characterisation of the mineralogical, physico-geomechanical, chemical and hydraulic properties of all earth materials involved in construction, resource recovery and environmental change; • the assessment of the mechanical and hydrological behaviour of soil and rock masses; • the prediction of changes to the above properties with time; • the determination of the parameters to be considered in the stability analysis of engineering works and earth masses.