华北水利水电大学学报（自然科学版）2026，Vol.47Issue(1)：9-16,8.DOI:10.19760/j.ncwu.zk.2026002
抢险火箭锚在土体中侵彻特性的数值模拟研究
Numerical Simulation of Penetration Characteristics of Rocket Anchors in Soil for Emergency Rescue
摘要
Abstract
[Objective]Sealing breaches in river levees is difficult to accomplish quickly.Utilizing rocket anchor penetration technology to rapidly establish anchoring points at a breach can effectively improve the anti-scour stability of cast materials.To provide an effective solution for rapid levee breach closure,this study investigates the penetration process and mechanical characteristics of rocket anchors in different media.[Methods]A single rocket anchor was selected as the research object,with soil chosen as the penetration medium.A three-dimensional numerical simulation was conducted to establish a mathemat-ical model of rocket anchor penetration.Simulations were conducted under various initial conditions.The three-dimensional simulation of penetration into soil was used to investigate,at a microscopic level,the stress state of the anchor,the plastic strain of the soil,and the morphological characteristics of the cavity formed by the anchor penetration.[Results]The simula-tion results showed that the localized pressure field caused by soil resistance was mainly concentrated at the anchor head,with the pressure gradient exhibiting unstable variation.During penetration,changes in the Von Mises equivalent stress of the soil at the anchor boundary responded synchronously with changes in the pressure field,and their fluctuation patterns were basically consistent.The initial velocity of the anchor affected its penetration depth in the soil.As the initial velocity increased,the penetration depth increased,but the stability of the anchor decreased.When the initial velocity exceeded a critical value,the anchor deviated,resulting in reduced penetration depth.[Conclusion]The findings contribute to the design of rocket an-chors for emergency rescue and provide a theoretical basis and technical support for the application of scientific and efficient breach closure technologies.关键词
溃口堵复/火箭锚/侵彻运动/数值模拟/初始条件Key words
breach closure/rocket anchor/penetration motion/numerical simulation/initial conditions分类
建筑与水利引用本文复制引用
孙东坡,乔驰,董明家,刘明潇,孟奔..抢险火箭锚在土体中侵彻特性的数值模拟研究[J].华北水利水电大学学报（自然科学版）,2026,47(1):9-16,8.基金项目
国家自然科学基金项目(52079053) （52079053）
国家重点研发计划项目(2023YFC3011400,2023YFC3011402) （2023YFC3011400,2023YFC3011402）
水利部重大科技项目(SKS2022030) （SKS2022030）
华北水利水电大学硕士研究生创新能力提升工程(NCWUYC-202315012). （NCWUYC-202315012）
