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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:

第47卷

期数:

2025年第04期

页码:

618-633

栏目:

黄河流域生态保护和高质量发展专刊(下)

出版日期:

2025-07-15

文章信息/Info

Title:

MPS-based Fluid-structure Interaction Simulation of Debris Flow Impact on Rigid Protective Structures in the Upper Yellow River Region, China

文章编号:

1672-6561(2025)04-0618-16

作者:

王志刚¹; 冯亚亚^1*; 张长青²; 孙中科³; 徐扬¹; 卢明辉¹; 黄丽颖¹; 马鑫弟¹; 郑俊杰¹; 刘冠男²

(1. 天津铁道职业技术学院 铁道建筑学院,天津 300240; 2. 中国地质科学院矿产资源研究所 自然资源部成矿作用与资源评价重点实验室,北京 100037; 3. 中铁第六勘察设计院集团有限公司,天津 300308)

Author(s):

WANG Zhi-gang¹; FENG Ya-ya^1*; ZHANG Chang-qing²; SUN Zhong-ke³; XU Yang¹; LU Ming-hui¹; HUANG Li-ying¹; MA Xin-di¹; ZHENG Jun-jie¹; LIU Guan-nan²

(1. Railway Construction College, Tianjin Railway Technical and Vocational College, Tianjin 300240, China; 2. MNR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China; 3. China Railway Sixth Survey and Design Institute Group Co., Ltd., Tianjin 300308, China)

关键词:

泥石流;  刚性防护结构;  移动粒子半隐式方法;  宾汉姆流变模型;  流固耦合;  冲击荷载;  黄河

Keywords:

debris flow;  rigid protective structure;  MPS method;  Bingham rheological model;  fluid-structure interaction;  impact load;  Yellow River

分类号:

P694

DOI:

10.19814/j.jese.2024.11015

文献标志码:

A

摘要:

黄河上游地区泥石流灾害具有高突发性和强破坏性,其细颗粒含量高、黏度大的特性使得传统数值方法难以准确模拟其冲击过程。基于移动粒子半隐式(MPS)方法与宾汉姆流变模型的耦合框架,构建了适用于泥石流-结构流固耦合模拟的高精度数值模型,并通过对比模型模拟结果与前人试验结果验证了该模型的准确性; 针对黄河上游地区典型泥石流灾害场景,系统模拟了不同泥石流体积(10～30 m³)和边坡坡度(5°～15°)下泥石流对刚性防护结构冲击动力过程的影响。结果表明:①在边坡坡度为5°工况下,当泥石流体积为25 m³时,泥石流冲击力峰值为287.80 kN; 当泥石流体积为30 m³时,泥石流冲击力第1个峰值陡增至681.71 kN,且第2个峰值(261.07 kN)仍具显著破坏性; 当泥石流体积为15～30 m³时,泥石流冲击力峰值与泥石流体积之间的关系呈现指数函数关系; 根据这一关系,泥石流体积从20 m³增长到25 m³时,泥石流冲击力峰值增大幅度仅为52.4%,但是泥石流体积从25 m³增长到30 m³时,泥石流冲击力峰值增大幅度高达116.5%; 泥石流冲击力峰值突变对应的泥石流体积阈值为27 m³。②在泥石流体积为15 m³工况下,当边坡坡度增大至15°时,泥石流冲击力时程曲线呈现显著双峰特征,峰值分别为442.54和398.29 kN(两者相差小于10%),导致刚性防护结构反复受力的风险增加。

Abstract:

Debris flow disasters in the upper Yellow River region are characterized by high suddenness and strong destructiveness, with their high fine-particle content and viscosity posing challenges for traditional numerical methods in accurately simulating impact processes. The high-precision numerical models for fluid-structure interaction(FSI)simulation of debris flows were developed by coupling the moving particle semi-implicit(MPS)method with Bingham rheological model; the high-precision numerical models' accuracy was validated through the comparison of simulations results by the models and experimental results from the literatures; focusing on typical debris flow scenarios in the upper Yellow River region, the effects of debris flow volume(10-30 m³)and slope gradient(5°-15°)on the impact dynamics of rigid protective structures were systematically simulated. The results show that ① under the slope gradient of 5°, when the debris flow volume is 25 m³, the peak impact force of debris flow is 287.80 kN; when the debris flow volume is 25 m³, the first peak impact force of debris flow sharply increases to 681.71 kN with a secondary peak(261.07 kN)remaining significantly destructive; when the debris flow volume is 15-30 m³, the relationship between peak impact force and volume of debris flow is exponential function; according to the relationship, the increase amplitudes of peak impact force are 52.4% and 116.5% when the debris flow volumes increase from 20 to 25 m³ and from 25 to 30 m³, respectively; there is a critical volume threshold(27 m³)of debris flow when the peak impact force increases sharply. ② Under the debris flow volume of 15 m³, when the slope gradient is 15°, the time-history curves of the impact force of debris flow is a distinct bimodal, with two peaks reaching 442.54 and 398.29 kN, respectively(the difference is less than 10%), increasing structural fatigue risk.

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备注/Memo

备注/Memo:

收稿日期:2024-11-13; 修回日期:2025-06-15
基金项目:国家自然科学基金项目(41902290); 现代职业教育体系建设改革新模式专项项目(ZBJ240021); 中国地质科学院矿产资源研究所基本科研业务费专项资金项目(KK2416,KK2202)
*通信作者:冯亚亚(1984-),女,河北保定人,讲师,E-mail:283590460@qq.com。

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更新日期/Last Update: 2025-07-25