作者：曾二贤1, 于嵩松1, 邵潇2, 尹原超2, 连博3
作者单位：1. 中国电力工程顾问集团中南电力设计院有限公司，湖北 武汉 430071;
2. 大连理工大学化工海洋与生命学院，辽宁 盘锦 124221;
3. 大连理工大学商学院，辽宁 盘锦 124221
关键词：悬空海缆;抛石试验平台;原型试验;受力评估
摘要：
受海洋冲刷以及海底地质活动等因素影响，海底海缆的部分位置会发生悬空现象，抛石填埋法是常用的治理方法之一。然而，在抛石过程中海缆易受到冲击从而导致出现不同程度的损伤甚至破坏。为了评估海缆的受力和表面损伤情况，该文开展了悬空海缆抛石试验方法研究。首先，搭建原型抛石试验平台，利用应变片与力传感器等多种测量方法测量悬空段海缆的受力状况，通过搭建不同的试验工况分析不同石块尺寸、抛石高度等参数对海缆响应的影响。结果表明，海缆所受的最大张力与石块粒径大小以及抛石高度均呈线性关系，而海缆表面损伤状况几乎不受二者影响。该文可为海缆抛石填埋方法的实际使用提供理论支持。
research on rock-throwing test method of the suspended submarine cable
zeng erxian1, yu songsong1, shao xiao2, yin yuanchao2, lian bo3
1. central southern china electric power design institute limited liability company of china power engineering consulting group, wuhan 430071, china;
2. school of chemical engineering, ocean and life, dalian university of technology, panjin 124221, china;
3. business school of dalian university of technology,panjin 124221, china
abstract: due to factors such as ocean scour and seabed geological activities, certain sections of submarine cables may become exposed or suspended, and the stone-throwing landfill method is a widely employed remediation technique for addressing this issue. however, during the stone-throwing process, submarine cables are highly susceptible to impact, resulting in varying degrees of damage and destruction. to evaluate the stress and surface damage of submarine cables, this study investigates the methodology of suspended submarine cable stone-throwing tests. a prototype stone-throwing test platform was constructed, employing various measurement techniques such as strain gauges and force sensors to assess both local and overall stress conditions of suspended submarine cables. the influence of parameters, including stone size and stone-throwing height, on the response characteristics of submarine cables was analyzed under different test conditions. the results indicate that the extreme tension experienced by submarine cables is linearly related to the size of the stone particles and the height of stone-throwing, and the surface damage of submarine cables is almost unaffected by both factors. this article provides certain guidance value for the practical use of the submarine cable stone-throwing landfill method.
keywords: suspended submarine cable;rock-throwing test platform;prototype test;force assessment
2024, 50(8):20-27 收稿日期: 2024-05-21;收到修改稿日期: 2024-07-26
基金项目: 国家重点研发计划项目（2022yfb4201301）；辽宁省自然科学基金联合基金（2023-bsba-040）
作者简介: 曾二贤（1984-），男，湖北洪湖市人，高级工程师，硕士，研究方向为送电结构设计。
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