Page 149 - 《爆炸与冲击》2026年第3期

第 46 卷 第 7 期 爆 炸 与 冲 击 Vol. 46, No. 7
2026 年 7 月 EXPLOSION AND SHOCK WAVES Jul., 2026

DOI：10.11883/bzycj-2025-0229

落石冲击作用下埋地管道的动力响应分析 *

费鸿禄，姚树淇，袁立亮，戚亚楠，胡 刚

（辽宁工程技术大学爆破技术研究院，辽宁 阜新 123000）

摘要： 针对地质灾害高风险区段埋地管道所面临的落石冲击威胁，为深入探究其动力响应特性，采用缩尺模型试
验与数值模拟相结合的方法，系统研究了埋地管道的动力响应特性。建立的试验模型缩尺比例为 1∶10，利用落锤冲
击试验装置，结合 LS-DYNA 有限元分析，探讨了管道埋深、壁厚、冲击参数、管道参数和土体特性（土体弹性模量和管
土摩擦因数）对埋地管道的影响。试验结果表明：同一冲击高度下，管道埋深和壁厚越大，应变峰值越小；落锤偏心冲
击时，冲击点偏离管道中心后，对管道上下截面的影响减弱；冲击高度越高，管道中部应变峰值越大。数值模拟结果表
明：管道最大应力和应变与管道直径、内压和冲击速度正相关，与冲击偏距、土体弹性模量和管道埋深负相关；管土摩
擦因数增大对管道应力、应变的影响有限，超过 0.3 后影响甚微。基于 Pearson 相关性分析可知，冲击偏距、管道内压、
管道直径、土体弹性模量和管土摩擦因数的影响程度依次降低，管道应变与管道内压、管径和管土摩擦因数呈正相
关，与土体弹性模量和落石冲击偏距呈负相关；其中落石冲击偏距和管道内压对埋地管道力学响应的影响为中等偏强
相关。
关键词： 落石冲击；埋地管道；动力响应；缩尺模型
中图分类号： O383 国标学科代码： 13035 文献标志码： A

Dynamic response analysis of buried pipelines under rockfall impact

FEI Honglu, YAO Shuqi, YUAN Liliang, QI Ya’nan, HU Gang
（Institute of Blasting Technology, Liaoning Technical University, Fuxin 123000, Liaoning, China）

Abstract: In view of the rockfall impact threat faced by buried pipelines in high-risk areas of geological disasters, this study
systematically investigated the dynamic response characteristics of buried pipelines through a combination of scale model test
and numerical simulation to further explore its dynamic response characteristics and dig deep into their intrinsic mechanisms.
A test model with a geometric scale ratio of 1∶10 was constructed. Meanwhile, a drop hammer impact test device combined
with LS-DYNA finite element analysis was used. Based on these above, the influence laws of pipeline burial depth, wall
thickness, impact parameters, pipeline parameters, and soil properties (including soil elastic modulus and pipe-soil friction
coefficient) on buried pipelines were explored. The test results show that at the same impact height, the peak strain decreases as
the pipeline’s burial depth and wall thickness increase. Under eccentric drop hammer impacts, the influence on the upper and
lower cross-sections of the pipeline diminishes as the impact point deviates from the pipeline center. Additionally, a higher
impact height corresponds to a greater peak strain in the middle section of the pipeline.The numerical simulation results
indicate that the maximum stress and strain of the pipeline are positively correlated with pipeline diameter, internal pressure,
and impact velocity, while negatively correlated with impact eccentricity, soil elastic modulus, and pipeline burial depth.
Moreover, the increase in the pipe-soil friction coefficient has a limited impact on pipeline stress and strain, and this effect
becomes negligible when it exceeds 0.3. Based on Pearson correlation analysis, the order of influence degree of each parameter
is impact eccentricity, pipeline internal pressure, pipeline diameter, soil elastic modulus, and pipe-soil friction coefficient.

* 收稿日期： 2025-07-21；修回日期： 2025-11-23
基金项目： 国家自然科学基金（52404082）
第一作者： 费鸿禄（1963－ ），男，博士，教授，博士生导师，feihonglu@163.com

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