[1]朱春生,杨晓华,景国宾,等.冻融循环作用下荒漠绿洲区变质砂岩劣化特性试验[J].长安大学学报(自然科学版),2026,46(01):43-54.[doi:10.19721/j.cnki.1671-8879.2026.01.003]
　ZHU Chun-sheng,YANG Xiao-hua,JING Guo-bin,et al.Experiment on degradation characteristics of metamorphic sandstone in desert oasis areas under freeze-thaw cycles[J].Journal of Chang’an University (Natural Science Edition),2026,46(01):43-54.[doi:10.19721/j.cnki.1671-8879.2026.01.003]
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冻融循环作用下荒漠绿洲区变质砂岩劣化特性试验()
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长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
第46卷
期数:
2026年01期
页码:
43-54
栏目:
道路工程
出版日期:
2026-01-31

文章信息/Info

Title:
Experiment on degradation characteristics of metamorphic sandstone in desert oasis areas under freeze-thaw cycles
文章编号:
1671-8879(2026)01-0043-12
作者:
朱春生1; 2; 3; 杨晓华1; 景国宾1; 4; 孙巍锋5; 6; 7; 晏长根1; 瓦依提·力提甫1; 2
(1. 长安大学 公路学院,陕西 西安 710064; 2. 新疆交投建设管理有限责任公司,新疆 乌鲁木齐 830000; 3. 新疆阿乌阿公路发展有限责任公司,新疆 阿克苏 843000; 4. 大秦铁路股份有限公司太原工务机械段,山西 太原 030013; 5. 长安大学 地质工程与测绘学院,陕西 西安 710054; 6. 长安大学 地质资源与地质工程博士后科研流动站,陕西 西安 710054; 7. 长安大学 生态地质与灾害防控重点实验室,陕西 西安 710054)
Author(s):
ZHU Chun-sheng1; 2; 3;  YANG Xiao-hua1;  JING Guo-bin1; 4;  SUN Wei-feng5; 6; 7; YAN Chang-gen1;  LITIFU Wa-yi-ti1; 2
关键词:
道路工程;  岩质边坡;  冻融循环;  变质砂岩;  劣化损伤
Keywords:
road engineering;  rock slope;  freeze-thaw cycle;  metamorphic sandstone;  deterioration damage
分类号:
TU45
DOI:
10.19721/j.cnki.1671-8879.2026.01.003
文献标志码:
A
摘要:
针对新疆阿乌阿地处荒漠绿洲区,长期冻融作用会导致变质砂岩劣化损伤进而影响边坡浅层岩体变形稳定性的状况,选择阿乌阿(阿克苏经乌什至阿合奇)公路边坡变质砂岩为研究对象,设计3组工况(FT-1、FT-2、FT-3,温度分别为-10 ℃～20 ℃、-20 ℃～20 ℃、-30 ℃～20 ℃)下的冻融循环试验,分析变质砂岩的表观损伤阶段、物理响应参数、力学行为参数的变化规律,揭示冻融对阿乌阿公路边坡变质砂岩的劣化损伤特性。研究结果表明:冻融循环次数越大,变质砂岩劣化损伤程度越大,表观损伤阶段依次为劣化颗粒出现、岩屑岩渣剥落、微小裂隙萌生、裂缝扩展贯通; 冻融循环次数增加导致饱和含水率先增后稳,纵波波速先降后稳,质量变化呈先增后减趋势,岩样物理参数发生显著变化的关键阈值为冻融循环30次; 冻融循环次数越大,岩样应力-应变曲线表现为峰值应力减小,峰值应变先减后增,压密阶段增长,弹性阶段缩短,峰后应力跌落速度减缓,塑性逐渐增强; FT-3工况下岩样的单轴抗压强度和弹性模量变化最显著,分别折减了48.83%和60.98%; 冻融损伤变量与冻融循环系数的变化关系符合指数型函数,前期非线性快速增长,后期趋于平缓; 环境预设最低温度越低,劣化程度越高。研究成果可对认识冻融循环作用下新疆荒漠绿洲区变质砂岩的劣化损伤提供一定参考。
Abstract:
In response to the condition where the long-term freeze-thaw action in the arid oasis region of Xinjiang leads to the deterioration and damage of metamorphic sandstone, thereby affecting the deformation stability of shallow slopes, the metamorphic sandstone of the Awu-A(from Aksu via Wushi to Aheqi)highway slope was selected as the research subject, three sets of conditions(FT-1, FT-2, and FT-3, with temperatures ranging from -10 ℃ to 20 ℃, -20 ℃ to 20 ℃, and -30 ℃ to 20 ℃, respectively)were designed for freeze-thaw cycle tests. The changes in the apparent damage stage, physical response parameters, and mechanical behavior parameters of the metamorphic sandstone were analyzed, revealing the deterioration and damage characteristics of the metamorphic sandstone under freeze-thaw conditions. The findings indicate that the greater the number of freeze-thaw cycles, the more severe the deterioration and damage of the metamorphic sandstone. The apparent damage stages progress sequentially as the appearance of deteriorated particles, rock debris shedding, initiation of micro-cracks, and crack propagation and connection. As the number of freeze-thaw cycles increases, the saturated water content initially rises and then stabilizes, the longitudinal wave velocity decreases and stabilizes, and the mass change follows an initial increase followed by a decrease. The critical threshold for significant changes in the physical parameters of the rock samples is achieved after 30 freeze-thaw cycles. With more freeze-thaw cycles, the stress-strain curve of the rock samples shows a reduction in peak stress, a peak strain that first decreases and then increases, an extended compaction stage, a shortened elastic stage, a slower post-peak stress drop, and gradually increasing plasticity. Under the FT-3 condition, the uniaxial compressive strength and elastic modulus of the rock samples exhibit the most significant changes, decreasing by 48.83% and 60.98%, respectively. The relationship between the freeze-thaw damage variable and the freeze-thaw cycle coefficient conforms to an exponential function, with rapid nonlinear growth in the early stages and a gradual stabilization in the later stages. The lower the preset minimum environmental temperature, the higher the degree of deterioration. These findings provide valuable insights for understanding the deterioration and damage of metamorphic sandstone in the arid oasis region of Xinjiang under freeze-thaw cycles.2 tabs, 13 figs, 21 refs.

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备注/Memo

备注/Memo:
收稿日期:2025-07-01
基金项目:国家自然科学基金项目(42307217); 新疆阿乌阿公路发展有限责任公司科研项目(AWAGSGCJS-23-ZXFWHT-003); 中央高校基本科研业务费专项资金项目(300102262901); 陕西省重点研发计划项目(2024SF-YBXM-553)
作者简介:朱春生(1983-),男,新疆乌鲁木齐人,正高级工程师,工学博士研究生,从事公路工程研究,E-mail:523762404@qq.com。
通信作者:孙巍锋(1989-),男,河南鄢陵人,副教授,E-mail:sunweifeng@chd.edu.cn。
更新日期/Last Update: 2026-02-20