辽宁工程技术大学学报（自然科学版）2026，Vol.45Issue(1)：59-65,7.DOI:10.11956/j.issn.1008-0562.20250363
低温状态下冻土-浆脉结合界面的力学特性
Mechanical characteristics of frozen soil-grout interface at low temperature
摘要
Abstract
Aiming at the problem of unclear mechanical properties of frozen soil-pulp vein interface failure in the construction of artificial freezing method in high water-rich strata,Brazilian splitting test combined with digital image correlation technology(DIC)was used to test the frozen soil-pulp vein combined specimens,and the effects of different initial water content and freezing negative temperature on the mechanical properties and fracture evolution mechanism of the interface were analyzed.The results show that the interface crack propagation modes of specimens with different initial water contents are significantly different and the initiation is non-synchronous.The decrease of initial water content makes the slurry vein effectively improve the strength of frozen soil,and the failure path changes from brittleness to toughness.The damage process of the specimens is divided into the accumulation stage and the rapid stage.When the initial water content increases,the duration of the damage accumulation stage and the size and occurrence time of the damage acceleration point Df increase first and then decrease.The research conclusions provide technical support for the application of freezing method in underground engineering.关键词
冻土-浆脉界面/低温状态/巴西劈裂/数字图像技术/力学性能/含水率Key words
frozen soil-grout interface/low temperature state/Brazilian split/digital image technology/mechanical properties/water contents分类
建筑与水利引用本文复制引用
胡治强,崔宏环,张松,张庆武,徐维江,王雨豪..低温状态下冻土-浆脉结合界面的力学特性[J].辽宁工程技术大学学报（自然科学版）,2026,45(1):59-65,7.基金项目
国家自然科学基金面上项目(52172347) （52172347）
河北省高等学校科学研究项目(QN2025241) （QN2025241）
河北建筑工程学院创新基金项目(XY2026053) （XY2026053）
