Page 106 - 《爆炸与冲击》2026年第3期

第 46 卷 第 3 期 爆 炸 与 冲 击 Vol. 46, No. 3
2026 年 3 月 EXPLOSION AND SHOCK WAVES Mar., 2026

DOI：10.11883/bzycj-2025-0208

循环冲击下高温层理砂岩的动力学特性及损伤模型 *

许梦飞，苗文涛，梁为民，韩 峰，李敏敏
（河南理工大学土木工程学院，河南 焦作 454003）

摘要： 为研究循环冲击下高温层理砂岩的动力学特性及动态损伤本构模型，首先对高温（300～1 100 ℃）作用后
层理砂岩的物理特性进行测试；其次利用霍普金森压杆（split Hopkinson pressure bar，SHPB）装置开展了循环冲击下高温
层理砂岩动力学特性研究；最后，基于层理岩石黏弹性损伤元件模型，构建了考虑高温-冲击荷载耦合损伤的层理岩石
动态本构模型，并通过实验数据对模型进行了验证。结果表明：砂岩主要矿物晶体石英的变晶温度处于 500～700 ℃
之间。温度越高，砂岩表观颜色越深，质量越小，波速和峰值应力先减小后增大。温度对 0°、45°层理砂岩造成的损伤
更大，900 ℃ 时损伤最为显著。在 1 300 V 冲击电压下，层理砂岩的峰值应力随冲击次数的增加呈现先升后降的趋势。
冲击荷载使高温后的 0°层理砂岩更容易破坏，而 45°和 60°层理砂岩表现出较强的抗冲击能力。模型预测曲线与试验
曲线相差较小，表明该模型在描述高温层理砂岩循环冲击力学特性方面具有良好的适用性。
关键词： 岩石动力学；高温；层理砂岩；循环冲击；本构模型
中图分类号： O382; TU452 国标学科代码： 13035 文献标志码： A

Dynamic characteristics and damage constitutive model of
high-temperature bedding sandstone under cyclic impact

XU Mengfei, MIAO Wentao, LIANG Weimin, HAN Feng, LI Minmin
（School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454003, Henan, China）

Abstract: To investigate the dynamic characteristics and dynamic damage constitutive model of high-temperature bedding
sandstone under cyclic impact, the physical properties of bedding sandstone after exposure to 300−1 100 ℃ were first exa-
mined, and the influence of temperature on the color, mineral composition, mass and wave velocity of the specimens was
recorded. Second, the dynamic characteristics of high-temperature bedding sandstone under cyclic impact were studied with a
split Hopkinson pressure bar (SHPB) apparatus, and the dynamic responses of bedding sandstone at different strain rates and
impact numbers were analyzed. Finally, on the basis of the visco-elastic damage element model for bedding rock, a dynamic
constitutive model that accounts for high-temperature-impact-load coupling damage was established and verified against
experimental data. The results show that the crystallization temperature of the dominant mineral quartz lies between 500 ℃ and
700 ℃; the higher the temperature, the darker the apparent color of the rock and the lower its mass. With increasing tem-
perature, the wave velocity and peak stress first decrease and then increase. Temperature inflicts greater damage on 0° and 45°
bedding sandstone, and the damage is most pronounced at 900 ℃. Under an impact voltage of 1 300 V, the peak stress of bed-
ding sandstone increases and then decreases with increasing impact number. Impact loading renders 0° bedding sandstone more
susceptible to failure after high-temperature exposure, whereas 45° and 60° bedding sandstone exhibit strong impact resistance.
The difference between the predicted and experimental curves is small, indicating that the model satisfactorily describes the
cyclic-impact mechanical behavior of high-temperature bedding sandstone. The findings provide a valuable theoretical
reference for the prevention and control of rock dynamic disasters in complex deep geothermal engineering environments.
Keywords: rock dynamics; high temperature; bedding sandstone; cyclic impact; constitutive model

* 收稿日期： 2025-07-09；修回日期： 2025-10-22
基金项目： 河南省自然科学基金（252300421330）；河南省高等学校重点科研项目（25A130004）
第一作者： 许梦飞（1989－ ），男，博士，讲师，xumengfeil@126.com

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