黑龙江科技大学学报2025，Vol.35Issue(5)：754-759,6.DOI:10.3969/j.issn.2095-7262.2025.05.010
基于CT扫描的冻融红砂岩的损伤特征
Damage characteristics behind freeze-thaw red sandstone based on CT scanning
摘要
Abstract
This paper intends to investigate the damage evolution law behind freeze-thaw red sand-stone.The study is accomplished by conducting CT scanning test on the freeze-thaw red sandstone,bina-rizing the CT scan image,obtaining the surface porosity of the freeze-thaw red sandstone with data statis-tics;and simulating the seepage of freeze-thaw red sandstone with the three-dimensional reconstruction and damage theory.The results show that the average pore radius of red sandstone increases from 9.45 μm to 14.845 μm and the permeability of the red sandstone increases by 105.47 times along with the increase of the freeze-thaw times from 0 to 55.The variation laws of the macro and mesoscopic dam-age variables of the freeze-thaw red sandstone are basically consistent.This study can provide a theoreti-cal basis for the freeze-thaw rock damage.关键词
冻融循环/CT扫描/三维重建/损伤变量Key words
freeze-thaw cycle/CT scan/3D reconstruction/damage variables分类
建筑与水利引用本文复制引用
兰永伟,高宏伟,徐立,高红梅..基于CT扫描的冻融红砂岩的损伤特征[J].黑龙江科技大学学报,2025,35(5):754-759,6.基金项目
黑龙江省省属高等学校基本科研业务费项目(2024-KYYWF-1056) （2024-KYYWF-1056）
国家自然科学基金项目(52474218) （52474218）
